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Journal articles on the topic 'Electrolysis'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Molina, Victor M., Domingo González-Arjona, Emilio Roldán, and Manuel Dominguez. "Electrochemical Reduction of Tetrachloromethane. Electrolytic Conversion to Chloroform." Collection of Czechoslovak Chemical Communications 67, no. 3 (2002): 279–92. http://dx.doi.org/10.1135/cccc20020279.

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The feasibility of electrolytic removal of tetrachloromethane from industrial effluents has been investigated. A new method based on the electrochemical reductive dechlorination of CCl4 yielding chloroform is described. The main goal was not only to remove CCl4 but also to utilize the process for obtaining chloroform, which can be industrially reused. GC-MS analysis of the electrolysed samples showed that chloroform is the only product. Voltammetric experiments were made in order to select experimental conditions of the electrolysis. Using energetic and economic criteria, ethanol-water (1 : 4)

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2

Proost, Joris. "(Invited) Techno-Economic Aspects of Hydrogen Production from Water Electrolysis." ECS Meeting Abstracts MA2024-01, no. 34 (2024): 1735. http://dx.doi.org/10.1149/ma2024-01341735mtgabs.

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Hydrogen production today Today, hydrogen is still mainly being used as a specialty chemical, including the synthesis of ammonia and methanol, and during steel and glass manufacturing where it is the preferred reducing gas during annealing and forming processes. The great majority of all these H2 is being produced by 2 large-scale chemical processes : steam methane reforming (SMR) and coal gasification. Both of these processes are heavily CO2 intensive, SMR emitting up to 8 tons of CO2 per ton of H2 produced. Therefore, with the objective of reaching the CO2 emission targets already in today's

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3

Zhang, Fan, Junjie Zhou, Xiaofeng Chen, et al. "The Recent Progresses of Electrodes and Electrolysers for Seawater Electrolysis." Nanomaterials 14, no. 3 (2024): 239. http://dx.doi.org/10.3390/nano14030239.

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The utilization of renewable energy for hydrogen production presents a promising pathway towards achieving carbon neutrality in energy consumption. Water electrolysis, utilizing pure water, has proven to be a robust technology for clean hydrogen production. Recently, seawater electrolysis has emerged as an attractive alternative due to the limitations of deep-sea regions imposed by the transmission capacity of long-distance undersea cables. However, seawater electrolysis faces several challenges, including the slow kinetics of the oxygen evolution reaction (OER), the competing chlorine evoluti

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de les Valls, E. Mas, R. Capdevila, J. Jaramillo, and W. Buchholz. "Modelling thermal dynamics in intermittent operation of a PEMEL for green hydrogen production." Journal of Physics: Conference Series 2766, no. 1 (2024): 012044. http://dx.doi.org/10.1088/1742-6596/2766/1/012044.

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Abstract Green hydrogen plays a pivotal role in the imminent energy transition, addressing energy storage and electricity generation decarbonization. The European Commission’s hydrogen strategy underscores the goal to install at least 40 GW of green hydrogen electrolysers by 2023. Despite various electrolyser technologies, efficiency improvement and durability enhancement remain challenges, especially considering voltage intermittencies from renewable energy sources. This study emphasizes the impact of thermal gradients within electrolysers due to voltage interruptions, affecting membrane oper

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Denk, Karel, Martin Paidar, Jaromir Hnat, and Karel Bouzek. "Potential of Membrane Alkaline Water Electrolysis in Connection with Renewable Power Sources." ECS Meeting Abstracts MA2022-01, no. 26 (2022): 1225. http://dx.doi.org/10.1149/ma2022-01261225mtgabs.

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Hydrogen is an efficient energy carrier with numerous applications in various areas as industry, energetics, and transport. Its potential depends also on the origin of the energy used to produce the hydrogen with respect to its environmental impact. Where the standard production of hydrogen from fossil fuels (methane steam reforming, etc.) doesn’t bring any benefit to decarbonisation of society. The most ecological approach involves water electrolysis using ‘green’ electricity, such as renewable power sources. Such hydrogen thus stores energy which can be used later. Hydrogen, used in the tran

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6

Ijiga, Anthony Owoicho, Sylvia Igbafe, Akeem Aderibigbe Adebomehin, and Anselm Iuebego Igbafe. "Semi Empirical Modelling of Alkaline Water Electrolysis Green Hydrogen Using Biosynthesized Lye and Caustic Soda Electrolytes." ABUAD Journal of Engineering Research and Development (AJERD) 8, no. 1 (2025): 315–23. https://doi.org/10.53982/ajerd.2025.0801.32-j.

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Semi empirical modelling of an alkaline water electrolysis system for green hydrogen production was carried out in this paper. Green hydrogen which is an alternative to fossil fuels and other sources of energy because of its renewability and sustainability is produced via alkaline water electrolysis utilizing biosynthesized lye (KOH) and caustic soda (NaOH) obtained from charring unripe plantain peel and electrolysing sea water respectively. The alkaline water electrolysis process was carried out at electrolyte concentrations of 25 g/L, 30 g/L and 35g/L for KOH and NaOH, at temperatures 45 oC,

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Borm, Oliver, and Stephen B. Harrison. "Reliable off-grid power supply utilizing green hydrogen." Clean Energy 5, no. 3 (2021): 441–46. http://dx.doi.org/10.1093/ce/zkab025.

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Abstract Green hydrogen produced from wind, solar or hydro power is a suitable electricity storage medium. Hydrogen is typically employed as mid- to long-term energy storage, whereas batteries cover short-term energy storage. Green hydrogen can be produced by any available electrolyser technology [alkaline electrolysis cell (AEC), polymer electrolyte membrane (PEM), anion exchange membrane (AEM), solid oxide electrolysis cell (SOEC)] if the electrolysis is fed by renewable electricity. If the electrolysis operates under elevated pressure, the simplest way to store the gaseous hydrogen is to fe

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8

Gerhardt, Michael Robert, Alejandro O. Barnett, Thulile Khoza, et al. "An Open-Source Continuum Model for Anion-Exchange Membrane Water Electrolysis." ECS Meeting Abstracts MA2023-01, no. 36 (2023): 2002. http://dx.doi.org/10.1149/ma2023-01362002mtgabs.

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Anion-exchange membrane (AEM) electrolysis has the potential to produce green hydrogen at low cost by combining the advantages of conventional alkaline electrolysis and proton-exchange membrane electrolysis. The alkaline environment in AEM electrolysis enables the use of less expensive catalysts such as nickel, whereas the use of a solid polymer electrolyte enables differential pressure operation. Recent advancements in AEM performance and lifetime have spurred interest in AEM electrolysis, but many open research areas remain, such as understanding the impacts of water transport in the membran

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9

Kumar Gupta, Pankaj, Akshay Dvivedi, and Pradeep Kumar. "Effect of Electrolytes on Quality Characteristics of Glass during ECDM." Key Engineering Materials 658 (July 2015): 141–45. http://dx.doi.org/10.4028/www.scientific.net/kem.658.141.

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Electrochemical discharge machining (ECDM) is an ideal process for machining of nonconductive materials in micro-domain. The material removal takes place due to combined action of localised sparks and electrolysis in an electrolytic chamber. The electrolyte is most important process parameter for ECDM as it governs spark action as well as electrolysis. This article presents a comparison of three preferred electrolytes used in ECDM viz. NaCl, KOH and NaOH on drilling of glass workpiece material. The quality characteristics measured are material removal rate (MRR) and hole overcut. Results revea

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Lee, Seokhee, Sang Won Lee, Suji Kim, and Tae Ho Shin. "Recent Advances in High Temperature Electrolysis Cells using LaGaO3-based Electrolyte." Ceramist 24, no. 4 (2021): 424–37. http://dx.doi.org/10.31613/ceramist.2021.24.4.06.

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High temperature electrolysis is a promising option for carbon-free hydrogen production and huge energy storage with high energy conversion efficiencies from renewable and nuclear resources. Over the past few decades, yttria-stabilized zirconia (YSZ) based ion conductor has been widely used as a solid electrolyte in solid oxide electrolysis cells (SOECs). However, its high operation temperature and lower conductivity in the appropriate temperature range for solid electrochemical devices were major drawbacks. Regarding improving ionic-conducting electrolytes, several groups have contributed sig

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Lee, Seokhee, Sang Won Lee, Suji Kim, and Tae Ho Shin. "Recent Advances in High Temperature Electrolysis Cells using LaGaO3-based Electrolyte." Ceramist 24, no. 4 (2021): 424–37. http://dx.doi.org/10.31613/ceramist.2021.24.4.42.

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High temperature electrolysis is a promising option for carbon-free hydrogen production and huge energy storage with high energy conversion efficiencies from renewable and nuclear resources. Over the past few decades, yttria-stabilized zirconia (YSZ) based ion conductor has been widely used as a solid electrolyte in solid oxide electrolysis cells (SOECs). However, its high operation temperature and lower conductivity in the appropriate temperature range for solid electrochemical devices were major drawbacks. Regarding improving ionic-conducting electrolytes, several groups have contributed sig

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12

Górecki, Krzysztof, Małgorzata Górecka, and Paweł Górecki. "Modelling Properties of an Alkaline Electrolyser." Energies 13, no. 12 (2020): 3073. http://dx.doi.org/10.3390/en13123073.

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This paper proposes a model of an electrolyser in the form of a subcircuit dedicated for SPICE. It takes into account both the electric static and dynamic properties of the considered device and is devoted to the optimisation of the parameters of the signal feeding this electrolyser, making it possible to obtain a high productivity and efficiency of the electrolysis process. Parameter values the describing current-voltage characteristics of the electrolyser take into account the influence of the concentration of the potassium hydroxide (KOH) solution. A detailed description of the structure an

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Therkildsen, Kasper T. "(Invited) Affordable Green Hydrogen from Alkaline Water Electrolysis: An Industrial Perspective." ECS Meeting Abstracts MA2024-01, no. 34 (2024): 1692. http://dx.doi.org/10.1149/ma2024-01341692mtgabs.

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Electrolysers is a novel component in the energy system and is expected to play a key role in the transition to a fossil free energy system and supply Green Hydrogen to a number of small- and large-scale applications within a number of industries e.g. transportation, industry etc. with several hundreds of GW is projected to be installed towards 2030. Modularity and mass production are key factors for the large scale deployment of electrolysis as envisioned in Hydrogen Strategies across the World. However, a number of different design strategies and modularities can be chosen in order to achiev

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14

Reimanis, Madars, Jurijs Ozoliņš, Juris Mālers, and Vizma Nikolajeva. "INFLUENCE OF VARIOUS PHYSICAL-CHEMICAL TREATMENT METHODS ON MICROBIAL GROWTH IN WATER." Environment. Technology. Resources. Proceedings of the International Scientific and Practical Conference 2 (August 3, 2015): 71. http://dx.doi.org/10.17770/etr2009vol2.1031.

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Use of the TinO2n-1 electrode for water electrolysis process promotes the destruction of organic matter as shown by the changes in permanganate index different values of electrolysed and non electrolysed solution. Using the TinO2n-1 electrode in the electrolysis process with the presence of chlorine and bromine ions can create a lasting disinfectant effect that was demonstrated by the sharp decrease in the number of bacterial colony forming units in electrolysed solutions. Using the TinO2n-1 electrode in the electrolysis process with the presence of iodine ions can create a bacteriostatic effe

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15

Riester, Christian Michael, Gotzon García, Nerea Alayo, Albert Tarancón, Diogo M. F. Santos, and Marc Torrell. "Business Model Development for a High-Temperature (Co-)Electrolyser System." Fuels 3, no. 3 (2022): 392–407. http://dx.doi.org/10.3390/fuels3030025.

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There are increasing international efforts to tackle climate change by reducing the emission of greenhouse gases. As such, the use of electrolytic hydrogen as an energy carrier in decentralised and centralised energy systems, and as a secondary energy carrier for a variety of applications, is projected to grow. Required green hydrogen can be obtained via water electrolysis using the surplus of renewable energy during low electricity demand periods. Electrolysis systems with alkaline and polymer electrolyte membrane (PEM) technology are commercially available in different performance classes. T

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16

Corda, Giuseppe, Antonio Cucurachi, Stefano Fontanesi, and Alessandro d’Adamo. "Three-Dimensional CFD Simulation of a Proton Exchange Membrane Electrolysis Cell." Energies 16, no. 16 (2023): 5968. http://dx.doi.org/10.3390/en16165968.

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The energy shift towards carbon-free solutions is creating an ever-growing engineering interest in electrolytic cells, i.e., devices to produce hydrogen from water-splitting reactions. Among the available technologies, Proton Exchange Membrane (PEM) electrolysis is the most promising candidate for coping with the intermittency of renewable energy sources, thanks to the short transient period granted by the solid thin electrolyte. The well-known principle of PEM electrolysers is still unsupported by advanced engineering practices, such as the use of multidimensional simulations able to elucidat

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17

Jiao, Handong. "The Current Progress of the Titanium Preparation by Electrolysis in the Room-Temperature Ionic Liquid Electrolytes." Journal of Advanced Thermal Science Research 8 (December 28, 2021): 71–76. http://dx.doi.org/10.15377/2409-5826.2021.08.8.

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Titanium is a beneficial metallic material due to its excellent properties. However, the large-scale application of titanium is inhibited by the high production cost of the Kroll process. To address this challenge, researchers have proposed many new strategies based on electrochemical technology over the past decades. Those electrochemical methods show potential practical value to replace the Kroll process. Nevertheless, many of them are conducted in high-temperature melts, limiting the rapid development of those methods. Accordingly, room-temperature electrolysis in ionic liquid electrolytes

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18

Park, Habin, Chenyu Li, and Paul Kohl. "Durability and Performance of Poly(norbornene) Anion Exchange Membrane Alkaline Electrolyzer with High Ionic Strength Anolyte." ECS Meeting Abstracts MA2024-01, no. 34 (2024): 1792. http://dx.doi.org/10.1149/ma2024-01341792mtgabs.

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Anion exchange polymer electrolytes enable low-temperature alkaline water electrolysis for reliable green hydrogen production. Anion exchange membrane water electrolysis (AEMWE) with alkaline electrolytes has several advantages over the proton exchange membrane water electrolysis using acid-based polymer electrolytes. The advantages include low-cost catalysts, all hydrocarbon non-fluorinated polymer membrane, and low-cost cell components. Long-term durability of AEMWEs in high pH operation has been challenging, although there have been significant performance improvements. AEMWE operated at lo

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19

González-Cobos, Jesús, Bárbara Rodríguez-García, Mabel Torréns, et al. "An Autonomous Device for Solar Hydrogen Production from Sea Water." Water 14, no. 3 (2022): 453. http://dx.doi.org/10.3390/w14030453.

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Hydrogen production from water electrolysis is one of the most promising approaches for the production of green H2, a fundamental asset for the decarbonization of the energy cycle and industrial processes. Seawater is the most abundant water source on Earth, and it should be the feedstock for these new technologies. However, commercial electrolyzers still need ultrapure water. The debate over the advantages and disadvantages of direct sea water electrolysis when compared with the implementation of a distillation/purification process before the electrolysis stage is building in the relevant res

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20

Vukicevic, Natasa, Vesna Cvetkovic, Nebojsa Nikolic, Goran Brankovic, Tanja Barudzija, and Jovan Jovicevic. "Formation of the honeycomb-like MgO/Mg(OH)2 structures with controlled shape and size of holes by molten salt electrolysis." Journal of the Serbian Chemical Society 83, no. 12 (2018): 1351–62. http://dx.doi.org/10.2298/jsc180913084v.

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Synthesis of the honeycomb-like MgO/Mg(OH)2 structures, with controlled shape and size of holes, by the electrolysis from magnesium nitrate hexahydrate melt onto glassy carbon is presented. The honeycomb-like structures were made up of holes, formed from detached hydrogen bubbles, surrounded by walls, built up of thin intertwined needles. For the first time, it was shown that the honeycomb-like structures can be obtained by molten salt electrolysis and not exclusively by electrolysis from aqueous electrolytes. Analogies with the processes of the honeycomb-like metal structures formation from a

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21

Prits, Alise-Valentine, Martin Maide, Ronald Väli, et al. "Bridging the Gap between Laboratory and Industrial Scale Electrochemical Characterisation of Raney Ni Electrodes for Alkaline Water Electrolysis." ECS Meeting Abstracts MA2024-01, no. 34 (2024): 1816. http://dx.doi.org/10.1149/ma2024-01341816mtgabs.

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The most mature water electrolysis technology is alkaline electrolysis, where an aqueous solution of KOH is used as the electrolyte. While this technology has been used for decades, there is still a lot of potential to improve the performance of these devices. Much research is focused on the optimisation of the electrodes containing novel catalyst materials that lower the activation energy barrier of the electrolysis process. However, one of the issues described by Ehlers et al.1 is that the current academic electrolysis research is done under conditions that are far from practical (e.g. at lo

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22

Radionov, E. Yu. "Development of a technology for setting a high-amperage electrolytic cell for electrical preheating using fusible links." iPolytech Journal 28, no. 4 (2025): 634–46. https://doi.org/10.21285/1814-3520-2024-4-635-646.

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The paper aims to develop and test a design procedure for setting an electrolytic cell for electrical preheating without current interruption in a series of electrolysis units using aluminum fusible links. For the analysis of a complex electrical circuit, the circuit conversion technique, a direct application of Kirchhoff’s circuit laws, was used. The obtained patterns were identified and determined using graphical and analytical methods. Mathematical modeling was performed by means of approved programs. A design procedure was developed for setting an electrolytic cell for electrical preheatin

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23

Savira, Deandra, and Rahadian Zainul. "Efektifitas Variasi Plat 4//4 dan 5//5 Elektroda Al/Cu terhadap Kinerja Generator Penghasil Gas Hidrogen." Ranah Research : Journal of Multidisciplinary Research and Development 3, no. 2 (2021): 101–7. http://dx.doi.org/10.38035/rrj.v3i2.377.

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This study aims to compare the effectiveness of plate variations 4//4 and 5//5 Al/Cu on the performance of hydrogen gas generators. The method used is electrolysis using electrolytes H2O and CH3COONa. The result obtained is that the 4/4 Al/Cu electrode plate variation is more effective in producing hydrogen gas during electrolysis than the 5/5 al/cu electrode plate variation. The 4/4 plate variation produces hydrogen gas with 8 ml and 102 ml of H2O and CH3COONa electrolytes, respectively. The use of electrolytes in the form of salt and variations of the electrode plates during the electrolysis

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Bespalko, Sergii, and Jerzy Mizeraczyk. "Overview of the Hydrogen Production by Plasma-Driven Solution Electrolysis." Energies 15, no. 20 (2022): 7508. http://dx.doi.org/10.3390/en15207508.

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This paper reviews the progress in applying the plasma-driven solution electrolysis (PDSE), which is also referred to as the contact glow-discharge electrolysis (CGDE) or plasma electrolysis, for hydrogen production. The physicochemical processes responsible for the formation of PDSE and effects occurring at the discharge electrode in the cathodic and anodic regimes of the PDSE operation are described. The influence of the PDSE process parameters, especially the discharge polarity, magnitude of the applied voltage, type and concentration of the typical electrolytic solutions (K2CO3, Na2CO3, KO

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Belkin, P. N., and S. A. Kusmanov. "Plasma Electrolytic Boriding of Steels and Titanium Alloys (Review)." Elektronnaya Obrabotka Materialov 54(5) (October 17, 2018): 1–30. https://doi.org/10.5281/zenodo.1464848.

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Results of diffusion saturation of steels and titanium alloys with boron and other elements under cathodic and anodic electrolysis plasma are considered. Processing regimes and electrolytes compositions, structural features of modified layers, their microhardness, surface roughness, as well as data of tribological and corrosion tests in various environments are presented. The treatment conditions are found to significantly increase the wear resistance and corrosion protection of structural steels and titanium alloys. A conclusion is made on the prospects of electrolytic-plasma treatment; plasm

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Andročec, Ivan, Martina Mikulić, and Martina Rubil. "Development of Electrolyser Projects for Production of Renewable Hydrogen." Journal of Energy - Energija 73, no. 3 (2024): 9–16. https://doi.org/10.37798/2024733518.

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Hydrogen is one of the important factors in reaching climate neutrality from the European Green Deal, particularly hydrogen made from renewable energy sources. The paper describes electrolysis plants in technical, environmental and regulatory aspects and presents obstacles that need to be overcome for the successful implementation of electrolyser projects, looking at the bigger picture of the energy sector. Part of the paper is dedicated to the research of existing projects and the plans for the development of electrolysers. Possible contribution of the development of electrolysis plants is in

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Vervoort, Jannes, Anna Heuschmann, Kevin Schalk, Marieke Stein, Karsten Korsch, and Nora Denecke. "First experience in operation and data acquisition at the Hydrogen Lab Bremerhaven." Journal of Physics: Conference Series 3025, no. 1 (2025): 012024. https://doi.org/10.1088/1742-6596/3025/1/012024.

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Abstract The Hydrogen Lab Bremerhaven (HLB), operated by Fraunhofer IWES, supports the energy transition by enabling the large-scale integration of green hydrogen. As the hydrogen market evolves, reliable operational data is essential. HLB provides a versatile infrastructure, including two electrolysers, a fuel cell, a hydrogen CHP plant, and storage systems. Connected to wind turbines via a Power Purchase Agreement (PPA), it ensures green hydrogen production and supports offshore electrolysis and desalination research. During its initial phase, HLB gathered key data on system performance, gri

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Heizmann, Sören, and Chiara Manfletti. "Theoretical and Experimental Analysis of the Cathode-Vapour-Feed PEM-Electrolyser for Space Applications." ECS Meeting Abstracts MA2024-02, no. 25 (2024): 2002. https://doi.org/10.1149/ma2024-02252002mtgabs.

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Water electrolysis is experiencing growing interest due to its importance in the transition to a carbon-neutral transportation sector and even in spaceflight it can play a vital role. Here, its typical application has been the oxygen generation for the life support of astronauts onboard a spacecraft or the International Space Station. However, in recent years the application of electrolysis for a new form of spacecraft propulsion is receiving increasing attention, as well. This technology is called Water Electrolysis Propulsion (WEP). So far highly toxic and expensive propellants have been use

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Prokhorov, Konstantin, Alexander Burdonov, and Peter Henning. "Study of flow regimes and gas holdup in a different potentials medium in an aerated column." E3S Web of Conferences 192 (2020): 02013. http://dx.doi.org/10.1051/e3sconf/202019202013.

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A generation of hydrogen and oxygen bubbles by of aqueous solutions of electrolytes was carried out. Two electrolysis modifications was study: electrolysis without a membrane to production of oxygen and hydrogen and membrane electrolysis with separation of catholyte and anolyte. The influence of the model conditions of the experiment such as electrolyte pH, concentration, and current density and the distribution of bubble sizes and gas holdup in the column are discussed. An inverse dependence of the hydrogen bubbles diameter in the catholyte medium on the current density and a direct dependenc

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Dilrukshi, Ekanayaka Achchillage Ayesha, Takeshi Fujino, and Shun Motegi. "Behavior of bentonite in an aqueous electrolytic solution – evaluation of electrolytic aggregation for adsorption capacity of Cd2+ ions onto bentonite." Water Science and Technology 77, no. 12 (2018): 2841–50. http://dx.doi.org/10.2166/wst.2018.277.

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Abstract In this study, we used aqueous solutions containing 1 mg/L of Cd2+ for electrolysis while varying the current density (CD), amount of bentonite added and the effective submerged area to investigate the adsorption capacity of Cd2+ ions onto bentonite by electrolytic aggregation. The adsorption of Cd2+ ions increased with increasing amount of bentonite added to the electrolytic solution. The addition of bentonite also regulated the pH of the electrolytic solution during the electrolysis process in addition to the hydrolysis of water. The maximum adsorption capacities at equilibrium (qe)

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Li, Lin Bo, Juan Qin Xue, Tao Hong, Miao Wang, and Jun Yang. "Preparation of Atomic Oxygen Oxidant by Electrolysis with Ultrasonic." Materials Science Forum 658 (July 2010): 1–4. http://dx.doi.org/10.4028/www.scientific.net/msf.658.1.

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The atomic oxygen oxidant—Peroxy-monosulfuric acid was prepared by the method of electrolysis under the condition of with and without ultrasonic. The influence of electrolysis time, electrolyte concentration, electrolytic voltage and the additive concentration on the concentration of oxidant were investigated. The result indicated that with the usage of ultrasonic, combination the cavitation effect and the chemical effect enhanced the concentration of electrolysis oxidant; with the electrolytic time of 3 hours, the electrolytic tension of 6V, the sulfuric acid weight concentration of 35%, the

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Ferguson, J. L. B., M. Kervyn, and A. Nambiar. "Optimising the operation of wind powered electrolysers." Journal of Physics: Conference Series 2626, no. 1 (2023): 012015. http://dx.doi.org/10.1088/1742-6596/2626/1/012015.

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Abstract Integrated wind power – hydrogen systems may make a useful contribution to achieving climate targets. Both centralised wind powered electrolysers and multi-MW decentralised solutions are likely to see multiple electrolyser units/systems deployed together. Since the efficiency of electrolysers is a function of their load factor, there is a possibility of optimising operation of the individual units in order to maximise the overall plant efficiency. Here we outline optimal strategies for electrolysis facilities with two, three and four independent units, and find that using these optimi

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Golodnova, A. I., M. V. Erpalov, and A. I. Golodnov. "The use of mathematical model to evaluate the material balance of a solid oxide electrolyser." Omsk Scientific Bulletin, no. 193 (2025): 68–75. https://doi.org/10.25206/1813-8225-2025-193-68-75.

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The effective use of solid oxide electrolysers is a promising solution for the energy sector and industry in general. Therefore, scientists all over the world are conducting research on improving the electrolysers' efficiency and reliability. In this paper, a mathematical model of the material balance for a solid oxide electrolyser is considered, which allows optimizing the operating parameters of existing equipment and newly designed equipment. In particular, special attention is focused on studying the effect of the operating parameters of electrochemical plants of planar design during elect

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Inazaki, Thelma Helena, Antonio Carlos Simões Pião, and Ederio Dino Bidoia. "Treatment of simulated wastewater containing n-phenyl-n-isopropyl-p-phenylenediamine using electrolysis system with Ti/TiRuO2 electrodes." Brazilian Archives of Biology and Technology 47, no. 6 (2004): 983–84. http://dx.doi.org/10.1590/s1516-89132004000600018.

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This study investigated the effects of the electrolytic treatment in the simulated wastewater with aromatic amine n-phenyl-n-isopropyl-p-phenylenediamine (Flexzone 3P®) using Ti/TiRuO2 electrodes under 0.025 A/cm² (DC) for different electrolysis durations (5; 15; 30; 45 and 60 min). Conductivity, pH, UV-visible spectra, gas chromatograms, toxicity and biodegradation tests were carried out. During the electrolytic treatment the pH decreased and conductivity increased slightly. After 60 min of electrolysis, the concentration of Flexzone 3P decreased by 65.1%. UV-vis spectra and chromatograms of

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Hayashi, Toru, Nadège Bonnet-Mercier, Akira Yamaguchi, Kazumasa Suetsugu, and Ryuhei Nakamura. "Electrochemical characterization of manganese oxides as a water oxidation catalyst in proton exchange membrane electrolysers." Royal Society Open Science 6, no. 5 (2019): 190122. http://dx.doi.org/10.1098/rsos.190122.

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The performance of four polymorphs of manganese (Mn) dioxides as the catalyst for the oxygen evolution reaction (OER) in proton exchange membrane (PEM) electrolysers was examined. The comparison of the activity between Mn oxides/carbon (Mn/C), iridium oxide/carbon (Ir/C) and platinum/carbon (Pt/C) under the same condition in PEM electrolysers showed that the γ-MnO 2 /C exhibited a voltage efficiency for water electrolysis comparable to the case with Pt/C, while lower than the case with the benchmark Ir/C OER catalyst. The rapid decrease in the voltage efficiency was observed for a PEM electrol

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Discepoli, Gabriele, Silvia Barbi, Matteo Venturelli, Monia Montorsi, Luca Montorsi, and Massimo Milani. "Enhancing PEM Electrolyzer Performance through Electrochemical Impedance Spectroscopy: A Review." Journal of Physics: Conference Series 2893, no. 1 (2024): 012072. https://doi.org/10.1088/1742-6596/2893/1/012072.

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Abstract The development of electrolyser technology is currently undergoing a breakthrough phase, poised to meet the upcoming demands for widespread hydrogen production under stringent requirements including high efficiency, purity, affordability, and rapid response to harness the full potential of renewable energy sources. In recent years, this rapid advancement necessitated concerted efforts supported by various diagnostic tools to achieve a comprehensive understanding of the underlying mechanisms governing electrolytic processes across diverse operating conditions. These tools prove particu

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Nishi, Ayana, Tatsuya Sasaki, Toshihide Takenaka, Toshiharu Matsumoto, and Katsushi Nagayasu. "Effects of Temperature and Different Electrolysis Processes on Mg Metal Deposition in Molten Salt Electrolysis." ECS Meeting Abstracts MA2024-02, no. 67 (2024): 4633. https://doi.org/10.1149/ma2024-02674633mtgabs.

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Metallic Mg has excellent mechanical properties, and its demand is growing worldwide. However, the supply risk and high greenhouse gas emission in its production became non-negligible nowadays. Our laboratory has been studying the Mg production process by molten salt electrolysis using the raw material extracted from seawater. In this study, Mg metal deposition was attempted by potentio-static and galvano-static electrolysis, and the influence of electrolysis temperature was discussed. Molten MgCl2-NaCl-CaCl2 was used as the electrolytic bath. Mo wire was used as the working electrode, and car

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Kim, Hong Bae, and Jong Hoon Chung. "Incorporation of Reversible Electroporation Into Electrolysis Accelerates Apoptosis for Rat Liver Tissue." Technology in Cancer Research & Treatment 19 (January 1, 2020): 153303382094805. http://dx.doi.org/10.1177/1533033820948051.

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Tissue electrolysis is an alternative modality that uses a low intensity direct electric current passing through at least 2 electrodes within the tissue and resulting electrochemical products including chlorine and hydrogen. These products induce changes in pH around electrodes and cause dehydration resulting from electroosmotic pressure, leading to changes in microenvironment and thus metabolism of the tissues, yielding apoptosis. The procedure requires adequate time for electrochemical reactions to yield products sufficient to induce apoptosis of the tissues. Incorporation of electroporation

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McHugh, Patrick J., Arindam K. Das, Alexander G. Wallace, Vaibhav Kulshrestha, Vinod K. Shahi, and Mark D. Symes. "An Investigation of a (Vinylbenzyl) Trimethylammonium and N-Vinylimidazole-Substituted Poly (Vinylidene Fluoride-Co-Hexafluoropropylene) Copolymer as an Anion-Exchange Membrane in a Lignin-Oxidising Electrolyser." Membranes 11, no. 6 (2021): 425. http://dx.doi.org/10.3390/membranes11060425.

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Electrolysis is seen as a promising route for the production of hydrogen from water, as part of a move to a wider “hydrogen economy”. The electro-oxidation of renewable feedstocks offers an alternative anode couple to the (high-overpotential) electrochemical oxygen evolution reaction for developing low-voltage electrolysers. Meanwhile, the exploration of new membrane materials is also important in order to try and reduce the capital costs of electrolysers. In this work, we synthesise and characterise a previously unreported anion-exchange membrane consisting of a fluorinated polymer backbone g

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Gerhardt, Michael Robert, Jenny S. Østenstad, Xavier Raynaud, and Alejandro O. Barnett. "Modelling of a Proton-Exchange Membrane Electrolysis Cell with Liquid-Fed Cathode." ECS Meeting Abstracts MA2023-01, no. 36 (2023): 1979. http://dx.doi.org/10.1149/ma2023-01361979mtgabs.

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Conventional proton-exchange membrane (PEM) water electrolysers use much thicker membranes (>175 µm) than their PEM fuel cell counterparts (<25 µm), which reduces hydrogen crossover but also reduces electrolyzer efficiency due to the increased Ohmic resistance1. Reduction of hydrogen crossover is critical in conventional systems to avoid buildup of hydrogen in the anode above the lower explosive limit. Due to the use of liquid water at the anode in conventional systems, the anode cannot be flushed with air or an inert gas to reduce the hydrogen concentration. If the liquid water supply i

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Guo, Hao, Hyeon-Jung Kim, and Sang-Young Kim. "Research on Hydrogen Production by Water Electrolysis Using a Rotating Magnetic Field." Energies 16, no. 1 (2022): 86. http://dx.doi.org/10.3390/en16010086.

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In this paper, the effect of rotating magnetic fields on hydrogen generation from water electrolysis is analyzed, aiming to provide a research reference for hydrogen production and improving hydrogen production efficiency. The electrolytic environment is formed by alkaline solutions and special electrolytic cells. The two electrolytic cells are connected to each other in the form of several pipes. The ring magnets are used to surround the pipes and rotate the magnets so that the pipes move relative to the magnets within the ring magnetic field area. Experimentally, the electrolysis reaction of

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Franco, Alessandro, and Caterina Giovannini. "Recent and Future Advances in Water Electrolysis for Green Hydrogen Generation: Critical Analysis and Perspectives." Sustainability 15, no. 24 (2023): 16917. http://dx.doi.org/10.3390/su152416917.

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This paper delves into the pivotal role of water electrolysis (WE) in green hydrogen production, a process utilizing renewable energy sources through electrolysis. The term “green hydrogen” signifies its distinction from conventional “grey” or “brown” hydrogen produced from fossil fuels, emphasizing the importance of decarbonization in the hydrogen value chain. WE becomes a linchpin, balancing surplus green energy, stabilizing the grid, and addressing challenges in hard-to-abate sectors like long-haul transport and heavy industries. This paper navigates through electrolysis variants, technolog

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Hsu, Han-Hung, Tom Breugelmans, Thomas Cardinaels, and Bart Geboes. "Electrolytic Reduction of UO₂ Microspheres Synthesized Via Internal Gelation Method." ECS Meeting Abstracts MA2023-02, no. 24 (2023): 1334. http://dx.doi.org/10.1149/ma2023-02241334mtgabs.

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Pyroprocessing is the combination of process steps to extract and recycle actinides from fission products in spent nuclear fuels in high-temperature molten salt media. Pyroprocessing has been studied extensively over the past decades. One of the key sub-processes is the electrolytic reduction of uranium oxides. The electrolytic reduction process originated from the FFC Cambridge process, an approach for electrochemically reducing titanium dioxide into titanium metal in molten CaCl2. In the electrolytic reduction of uranium oxides, the uranium oxide feed is applied as the cathode in LiCl-Li2O m

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Boyd, Tony, Clive Brereton, Jeremy Moulson, Warren Wolfs, and Luke GLynn. "Application of Industrial-Scale Lithium Sulphate Electrolysis in Battery Recycling." ECS Meeting Abstracts MA2023-02, no. 24 (2023): 1333. http://dx.doi.org/10.1149/ma2023-02241333mtgabs.

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As the world charges towards electrification and sustainable transportation, it is critical that the entire supply chain is equally sustainable. Industrial processes must be tailored towards circular processes in which emissions and effluents to the environment are minimized, if not eliminated altogether. When it comes to the production of battery grade lithium hydroxide monohydrate, a critical component of lithium ion batteries (LIBs), and the recovery of the lithium in spent LIBs. NORAM Electrolysis Systems Inc (NESI) has developed electrochemical technologies in which effluents are greatly

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Chen, Long, Xiaoli Dong, Fei Wang, Yonggang Wang, and Yongyao Xia. "Base–acid hybrid water electrolysis." Chemical Communications 52, no. 15 (2016): 3147–50. http://dx.doi.org/10.1039/c5cc09642a.

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Hadiyanto, Mochammad Feri, and Agus Kuncaka. "SILVER RECYCLING FROM PHOTO-PROCESSING WASTE USING ELECTRODEPOSITION METHOD." Indonesian Journal of Chemistry 2, no. 2 (2010): 102–6. http://dx.doi.org/10.22146/ijc.21921.

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Silver electrodeposition of photo-processing waste and without addition of KCN 1,0 M has been studied for silver recycling. Photo procesing waste containing silver in form of [Ag(S2O3)2]3- was electrolysed at constant potential and faradic efficiency was determined at various of electrolysis times. Electrolysis of 100 mL photo processing waste without addition of KCN 1,0 M was carried out at constant potential 1.20 Volt, while electrolysis 100 mL photo procesing waste with addition of 10 mL KCN 1,0 M electrolysis was done at 1.30 Volt.The results showed that for silver electrodeposition from p

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Gao, Peng, Zhifeng Li, Ming Gao, Jianuo Cai, and Like Tao. "Study on the Effect of Current Density on Electrolysis State in a 6kA Praseodymium Electrolyzer." Journal of Physics: Conference Series 2483, no. 1 (2023): 012010. http://dx.doi.org/10.1088/1742-6596/2483/1/012010.

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Abstract Current density is an important index parameter to study the state of rare earth electrolysis, and the lack of simulation modelling of current density in the electrolyzer in the actual process production chain affects the quality of products and the improvement of electrolytic current efficiency. Considering the process parameters in the electrolysis process, the simulation model of the 6kA praseodymium electrolyzer was constructed by using the numerical simulation software COMSOL to improve the electrolysis current efficiency and reduce the electrolysis power consumption. The simulat

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Şahin, Mustafa Ergin. "An Overview of Different Water Electrolyzer Types for Hydrogen Production." Energies 17, no. 19 (2024): 4944. http://dx.doi.org/10.3390/en17194944.

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While fossil fuels continue to be used and to increase air pollution across the world, hydrogen gas has been proposed as an alternative energy source and a carrier for the future by scientists. Water electrolysis is a renewable and sustainable chemical energy production method among other hydrogen production methods. Hydrogen production via water electrolysis is a popular and expensive method that meets the high energy requirements of most industrial electrolyzers. Scientists are investigating how to reduce the price of water electrolytes with different methods and materials. The electrolysis

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Gorlanov, E. S., and A. A. Polyakov. "On the question of using solid electrodes in the electrolysis of cryolite-alumina melts. Part 3. Electric field distribution on the electrodes." Proceedings of Irkutsk State Technical University 25, no. 2 (2021): 235–51. http://dx.doi.org/10.21285/1814-3520-2021-2-235-251.

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The aim of this work is to identify the theoretical limitations of molten salts electrolysis using solid electrodes to overcome these limitations in practice. We applied the theory of electric field distribution on the electrodes in aqueous solutions to predict the distribution of current density and potential on the polycrystalline surface of electrodes in molten salts. By combining the theoretical background of the current density distribution with the basic laws of potential formation on the surface of the electrodes, we determined and validated the sequence of numerical studies of electrol

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Omel’chuk, A. A. "Thin-layered electrolysis in molten electrolytes." Russian Journal of Electrochemistry 43, no. 9 (2007): 1007–15. http://dx.doi.org/10.1134/s1023193507090042.

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