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Artykuły w czasopismach na temat „Alkaline Electrolysers”

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Data publikacji: 31 sierpnia 2024

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1

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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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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Felipe Contreras-Vásquez, Luis, Luis Eduardo Escobar-Luna, and Henry Alexander Urquizo-Analuisa. "Evaluation of Alkaline and PEM Electrolysers for Green Hydrogen Production from Hydropower in Ecuador." Medwave 23, S1 (2023): eUTA395. http://dx.doi.org/10.5867/medwave.2023.s1.uta395.

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Introducción The yearly increase in energy demand has encouraged the scientific community to find new sources of energy production without affecting the environment. Renewable technologies have become extremely popular due to the low greenhouse emissions and availability of natural energy sources (wind, sun, water, earth, tides, etc.), However, because of the intermittent energy generation from renewable sources, it is complex to rely on these technologies to guarantee the energy supply. Therefore, over the last decade, hydrogen has become increasingly studied as an energy carrier to replace c

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Kuleshov, V. N., S. V. Kurochkin, N. V. Kuleshov, A. A. Gavriluk, M. A. Klimova, and S. E. Smirnov. "Hydrophilic fillers for anione exchange membranes of alkaline water electrolyzers." E3S Web of Conferences 389 (2023): 02030. http://dx.doi.org/10.1051/e3sconf/202338902030.

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Alkaline water electrolysers are widespread in many industries, including systems with hydrogen cycle of energy storage. One of the problems of modern alkaline water electrolysers is insufficient purity of generated electrolysis gases relative to electrolysis systems with solid-polymer electrolyte. In this regard, work on modification of existing porous diaphragms is actively carried out. One new area of research is the impregnation of new hydrophilic fillers into the composition of existing diaphragms and the transition to ion-solvate membranes. In this work the synthesis of zirconium hydroxi

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5

Rasten, Egil. "(Invited) Shunt-currents in Alkaline Water-Electrolyzers and Renewable Energy." ECS Meeting Abstracts MA2024-01, no. 34 (2024): 1871. http://dx.doi.org/10.1149/ma2024-01341871mtgabs.

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Shunt-currents in bipolar cell stack design with a common electrolyte-feed and -outlet is an inevitable physical phenomenon governed by Ohms law that causes some extra challenges when alkaline water-electrolysers shall operate on renewable energy that is both dynamic and intermittent. Shunt-currents are also referred to as bypass-current or creep-current. The shunt-currents are to much degree governed by the electrolyte inside the cell stack manifold system that transports lye in and out of the cells. The electrolyte inside the manifold system also electrically connects the individual cells to

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6

Sutka, Andris, Martins Vanags, and Mairis Iesalnieks. "Decoupled Electrolysis Based on Pseudocapacitive Auxiliary Electrodes: Mechanism and Enhancement Strategies." ECS Meeting Abstracts MA2023-02, no. 54 (2023): 2543. http://dx.doi.org/10.1149/ma2023-02542543mtgabs.

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Hydrogen is the way for connecting the renewable energy plants and consumers. However, achieving cheap, widespread hydrogen production and storage is complicated task. For hydrogen production the alkaline and acidic membrane electrolysers are used most widely. The membrane electrolysers have their limits, for example high standard potential of water splitting reaction, moderate efficiency, high cost and low durability. Decoupling oxygen evaluation reaction (OER) and hydrogen evaluation reaction (HER) is promising strategy to avoid using of membrane. Water electrolysis in separate cells was rep

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7

Maide, Martin, Alise-Valentine Prits, Sreekanth Mandati, and Rainer Küngas. "Multi-Functional Alkaline Electrolysis Setup for Industrially Relevant Testing of Cell Components." ECS Meeting Abstracts MA2023-02, no. 49 (2023): 3274. http://dx.doi.org/10.1149/ma2023-02493274mtgabs.

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Alkaline electrolysis is an industrially mature and promising method for the production of green hydrogen at scale [1]. Alkaline electrolysers are typically characterized by low investment costs compared to other electrolysis technologies [2]. Despite being used for industrial applications for almost 100 years, the efficiency of alkaline systems can still be significantly improved. To this end, rigorous testing and optimisation of cell components is paramount. Here, we report a multi-functional alkaline electrolysis setup, designed to facilitate testing of various cell components, including el

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8

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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Discepoli, Gabriele, Silvia Barbi, Massimo Milani, Monia Montorsi, and Luca Montorsi. "Investigating Sustainable Materials for AEM Electrolysers: Strategies to Improve the Cost and Environmental Impact." Key Engineering Materials 962 (October 12, 2023): 81–92. http://dx.doi.org/10.4028/p-7rkv7m.

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In recent years, the EU policy identified the hydrogen as one of the main energy vectors to support the power production from renewable sources. Coherently, electrolysis is suitable to convert energy in hydrogen with no carbon emission and high purity level. Among the electrolysis technologies, the anion exchange membrane (AEM) seems to be promising for the performance and the development potential at relatively high cost. In the present work, AEM electrolysers, and their technological bottlenecks, have been investigated, in comparison with other electrolysers’ technology such as alkaline wate

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10

Ayyub, Mohd Monis, Andrea Serfőző, Balázs Endrődi, and Csaba Janaky. "Understanding Performance Fading during CO Electrolysis in Zero Gap Electrolyzers." ECS Meeting Abstracts MA2023-02, no. 58 (2023): 2804. http://dx.doi.org/10.1149/ma2023-02582804mtgabs.

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Electrochemical CO reduction (ECOR) can act as a potential bridge between CO2-to-CO technologies and renewable production of C2+ chemicals. Copper has been the most widely studied cathode catalyst for ECOR because of its unique ability to produce multicarbon products. Iridium and nickel are the most-widely used anode materials for acidic and alkaline electrolysis, respectively. However, recent reports on the instability of Ir in alkaline conditions and Ni in near neutral conditions has made it imperative to understand the anodic processes for achieving stable long term operation at high curren

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Artuso, Paola, Rupert Gammon, Fabio Orecchini, and Simon J. Watson. "Alkaline electrolysers: Model and real data analysis." International Journal of Hydrogen Energy 36, no. 13 (2011): 7956–62. http://dx.doi.org/10.1016/j.ijhydene.2011.01.094.

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Bera, Cyril, and Magdalena Streckova. "Carbon Fibers Doped by Binary Phosphides as an Electrocatalytic Layer for PEM Electrolysers." Journal of Nano Research 78 (April 17, 2023): 97–102. http://dx.doi.org/10.4028/p-o8u8bx.

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Hydrogen evolution reactions (HER) are important in a variety of electrochemical devices, such as electrolysers and fuel cells. To reduce the reaction overpotential and reduce energy consumption, efficient, low-cost, and durable electrocatalysts must be developed. Needle-less electrospinning (NLE) technique was used to prepare the fibrous electrocatalyst. NLE is a user-friendly and adaptable technique for large-scale low-cost fiber production. NLE created transition metal phosphides carbon fibers (TMP CF). The precursor foam was folded between two Al2O3 ceramic plates. The heat treatment was c

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13

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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14

Mori, Mitja, Tilen Mržljak, Boštjan Drobnič, and Mihael Sekavčnik. "Integral Characteristics of Hydrogen Production in Alkaline Electrolysers." Strojniški vestnik – Journal of Mechanical Engineering 10, no. 59 (2013): 585–94. http://dx.doi.org/10.5545/sv-jme.2012.858.

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Vermeiren, Ph, J. P. Moreels, A. Claes, and H. Beckers. "Electrode diaphragm electrode assembly for alkaline water electrolysers." International Journal of Hydrogen Energy 34, no. 23 (2009): 9305–15. http://dx.doi.org/10.1016/j.ijhydene.2009.09.023.

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Garcia-Osorio, Dora Alicia, Hansaem Jang, Bhavin Siritanaratkul, and Alexander Cowan. "Water Dissociation Interfaces in Bipolar Membranes for H₂ Electrolysers." ECS Meeting Abstracts MA2023-02, no. 39 (2023): 1891. http://dx.doi.org/10.1149/ma2023-02391891mtgabs.

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In order to meet large scale energy demands in a more sustainable way, water electrolysers could be coupled with the well-developed photovoltaic solar cell technology to provide the energy input for green H2 production. Commercial PEM (proton exchange membranes) electrolysers operate in acidic pH which favours H2 production at the cost of using IrO2 as catalyst for oxygen production at the anode representing a significant drawback for this technology. Contrary, an AEM (anionic exchange membranes) operates in alkaline electrolytes which enables the use of low cost and highly active OER catalyst

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Caprì, Angela, Irene Gatto, Giuseppe Monforte, Carmelo Lo Vecchio, and Vincenzo Baglio. "Anion Exchange Membrane Electrolyser Performance with Ni Ferrite Anodes Calcined at Different Temperatures." ECS Meeting Abstracts MA2023-01, no. 36 (2023): 2094. http://dx.doi.org/10.1149/ma2023-01362094mtgabs.

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Hydrogen has a critical role in enabling European countries to achieve net-zero carbon targets. Hydrogen production via water splitting, using an electrolyser, is considered the "greenest" way because it does not produce any direct carbon emissions when powered by renewable sources. Among the different technologies of electrolysers (liquid alkaline, proton exchange membrane, etc.), there has been a recent surge in interest in that one based on anion-exchange membranes (AEMs). With respect to the state-of-the-art electrolysers that employ conventional acid polymer electrolyte separators (e.g.,

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18

Kuleshov, Vladimir Nikolaevich, Nikolai Vasil'evich Korovin, Nikolai Vasil'evich Kuleshov, Elena Yanovna Udris, and Andrei Nikolaevich Bakhin. "Development of new electrocatalysts for low temperature electrolysis of water." Electrochemical Energetics 12, no. 2 (2012): 51–58. http://dx.doi.org/10.18500/1608-4039-2012-12-2-51-58.

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Optimized methods of synthesis and modification of high efficient electrocatalysts for alkaline electrolysers have been described. The results of new electrocatalyst characterization by means of some physico-chemical methods are presented.

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19

Mori, Mitja, Rok Stropnik, Mihael Sekavčnik, and Andrej Lotrič. "Criticality and Life-Cycle Assessment of Materials Used in Fuel-Cell and Hydrogen Technologies." Sustainability 13, no. 6 (2021): 3565. http://dx.doi.org/10.3390/su13063565.

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The purpose of this paper is to obtain relevant data on materials that are the most commonly used in fuel-cell and hydrogen technologies. The focus is on polymer-electrolyte-membrane fuel cells, solid-oxide fuel cells, polymer-electrolyte-membrane water electrolysers and alkaline water electrolysers. An innovative, methodological approach was developed for a preliminary material assessment of the four technologies. This methodological approach leads to a more rapid identification of the most influential or critical materials that substantially increase the environmental impact of fuel-cell and

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Lavorante, Maria, Rodrigo Bessone, Samanta Saiquita, Gerardo Imbrioscia, and Erica Martinez. "Electrodes for Alkaline Water Electrolysers with Triangle Shape Topology." Jordan Journal of Electrical Engineering 6, no. 3 (2020): 237. http://dx.doi.org/10.5455/jjee.204-1590965088.

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Pozio, A., M. De Francesco, Z. Jovanovic, and S. Tosti. "Pd–Ag hydrogen diffusion cathode for alkaline water electrolysers." International Journal of Hydrogen Energy 36, no. 9 (2011): 5211–17. http://dx.doi.org/10.1016/j.ijhydene.2011.01.168.

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Maslovara, Sladjana, Dragana Vasic-Anicijevic, Aleksandra Saponjic, et al. "Comparative analysis of in-situ ionic activators for increased energy efficiency process in alkaline electrolysers." Science of Sintering, no. 00 (2024): 1. http://dx.doi.org/10.2298/sos231116001m.

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Electrodeposition of selected d-metals by in-situ electrodeposition as a method for improvement of electrocatalytic activity of conventional electrodes for alkaline hydrogen evolution has been attracting the attention of researchers for about two decades. The modification of metal electrodes by ionic activators as a combination of two (binary systems) or three (ternary systems) d-metal complexes added in electrolytic solution were represented in many studies. Better catalytic performances and higher energy efficiency compared to the common electrodes is provided by a number of affordable and i

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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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ARULRAJ, I., and D. TRIVEDI. "Characterization of nickel oxyhydroxide based anodes for alkaline water electrolysers." International Journal of Hydrogen Energy 14, no. 12 (1989): 893–98. http://dx.doi.org/10.1016/0360-3199(89)90076-1.

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Pletcher, Derek, and Xiaohong Li. "Prospects for alkaline zero gap water electrolysers for hydrogen production." International Journal of Hydrogen Energy 36, no. 23 (2011): 15089–104. http://dx.doi.org/10.1016/j.ijhydene.2011.08.080.

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Lysenko, Olha, and Valerii Ikonnikov. "Investigation of energy efficiency of hydrogen production in alkaline electrolysers." Technology audit and production reserves 5, no. 3(73) (2023): 11–15. http://dx.doi.org/10.15587/2706-5448.2023.290309.

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The object of research is the energy efficiency of the electrolysis process in electrolyzers with alkaline electrolyte electrical parameters. The existing problem consists in obtaining the energy efficiency of the process in an electrolyzer with an alkaline electrolyte of more than 65 %. To solve this problem, it is proposed to manufacture an electrolyzer with metal electrodes made of stainless steel and separated from each other by a gas-tight membrane (Bologna cloth) to separate hydrogen and oxygen gases. To establish the energy efficiency characteristics, an experimental installation was ma

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Russo, Andrea, Jens Oluf Jensen, Mikkel Rykær Kraglund, Wenjing (Angela) Zhang, and EunAe Cho. "Catalyst Application in Three-Dimensional Porous Electrodes for Alkaline Electrolysis." ECS Meeting Abstracts MA2023-01, no. 36 (2023): 2006. http://dx.doi.org/10.1149/ma2023-01362006mtgabs.

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Hydrogen is critical in the green transition, and a key system for producing green hydrogen is through alkaline electrolysis. Although the alkaline electrolyzers are mature and commercially available, vast improvements are still expected in the future 1. Traditional and most commercially applied alkaline electrolyzer electrodes are made from massive nickel plates (or nickel-plated steel plates) with some scattered perforation. With the ongoing development of thin alkaline ion‐conducting membranes with low internal resistance, the benefit of three‐dimensional porous electrodes becomes obvious.

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Boström, Oskar, Seung-Young Choi, Lu Xia, Felix Lohmann-Richters, and Patric Jannasch. "(Poster Award - Honorable Mention) Durable Polybenzimidazole Anion Exchange Membranes for Alkaline Water Electrolyzers." ECS Meeting Abstracts MA2023-02, no. 39 (2023): 1889. http://dx.doi.org/10.1149/ma2023-02391889mtgabs.

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Water electrolysis under alkaline conditions allows the use of inexpensive non-platinum-group catalysts such as nickel.1, 2 Conventional alkaline electrolyzers usually employ a highly concentrated aq. KOH solution as electrolyte (5-7 M) with a porous diaphragm as separator. Alternatively, protolysable polymers such as polybenzimidazole (PBI) may be swollen with electrolyte and used as ion-solvating membranes.2, 3 However, the chemical stability of the polymers can become a serious issue under these harsh conditions. Operation under more dilute conditions, e.g., up to 2 M KOH, may bring the ben

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Pandiarajan, T., L. John Berchmans, and S. Ravichandran. "Fabrication of spinel ferrite based alkaline anion exchange membrane water electrolysers for hydrogen production." RSC Advances 5, no. 43 (2015): 34100–34108. http://dx.doi.org/10.1039/c5ra01123j.

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Alkaline anion exchange membrane water electrolysis (AEMWE) is considered to be an alternative to proton exchange membrane water electrolysis (PEMWE), owing to the use of non-noble meta/metal oxides in AEMWE.

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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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Mironov, Egor A. "Modelling and control of hydrogen production processes based on electrolysis." Vestnik of Samara State Technical University. Technical Sciences Series 31, no. 2 (2023): 70–84. http://dx.doi.org/10.14498/tech.2023.2.6.

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Currently, hydrogen is considered as one of the most promising energy carriers, the production of which is possible from various raw materials, including water, natural gas, hydrogen sulphide, coal, etc. The article presents the main results of an analysis of global technological trends in the development of hydrogen generation methods in the period from 2010 to 2038, which aims to identify in-demand and popular technological solutions for hydrogen energy. The analysis is based on the International Energy Agency's database published in October 2022, which contains the most comprehensive inform

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Ursúa, Alfredo, Ernesto L. Barrios, Julio Pascual, Idoia San Martín, and Pablo Sanchis. "Integration of commercial alkaline water electrolysers with renewable energies: Limitations and improvements." International Journal of Hydrogen Energy 41, no. 30 (2016): 12852–61. http://dx.doi.org/10.1016/j.ijhydene.2016.06.071.

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Cruden, Andrew, David Infield, Mahdi Kiaee, Tamunosaki G. Douglas, and Amitava Roy. "Development of new materials for alkaline electrolysers and investigation of the potential electrolysis impact on the electrical grid." Renewable Energy 49 (January 2013): 53–57. http://dx.doi.org/10.1016/j.renene.2012.01.067.

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Abellán, Gonzalo, Vicent Lloret, and Alvaro Seijas Da Silva. "(Invited) Accelerated Three Electrode Cell (TEC) Testing for Optimizing Electrodes in Conventional Alkaline Electrolysis and Anion Exchange Membrane Water Electrolysis." ECS Meeting Abstracts MA2024-01, no. 28 (2024): 1486. http://dx.doi.org/10.1149/ma2024-01281486mtgabs.

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The merging of conventional Alkaline Electrolysis (AEL) and Proton Exchange Membrane Water Electrolysis (PEMWE) has led to the development of Anion Exchange Membrane Water Electrolysis (AEMWE). At this juncture, both AEL and AEMWE technologies offer an advantage over PEMWE as they do not require critical raw components and materials (CRM).[1] While AEMWE has demonstrated higher efficiencies than AEL with thin membranes and low concentrations of KOH, AEL technology addresses the significant stability challenge posed by anionic membranes by employing KOH electrolyte with novel zero-gap configura

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Vengatesan, S., S. Santhi, S. Jeevanantham, and G. Sozhan. "Quaternized poly (styrene-co-vinylbenzyl chloride) anion exchange membranes for alkaline water electrolysers." Journal of Power Sources 284 (June 2015): 361–68. http://dx.doi.org/10.1016/j.jpowsour.2015.02.118.

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Li, Xiaohong, Frank C. Walsh, and Derek Pletcher. "Nickel based electrocatalysts for oxygen evolution in high current density, alkaline water electrolysers." Phys. Chem. Chem. Phys. 13, no. 3 (2011): 1162–67. http://dx.doi.org/10.1039/c0cp00993h.

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Pletcher, Derek, Xiaohong Li, and Shaopeng Wang. "A comparison of cathodes for zero gap alkaline water electrolysers for hydrogen production." International Journal of Hydrogen Energy 37, no. 9 (2012): 7429–35. http://dx.doi.org/10.1016/j.ijhydene.2012.02.013.

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Sapountzi, F. M., V. Di Palma, G. Zafeiropoulos, et al. "Overpotential analysis of alkaline and acidic alcohol electrolysers and optimized membrane-electrode assemblies." International Journal of Hydrogen Energy 44, no. 21 (2019): 10163–73. http://dx.doi.org/10.1016/j.ijhydene.2019.02.205.

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Lonis, Francesco, Vittorio Tola, and Giorgio Cau. "Performance assessment of integrated energy systems for the production of renewable hydrogen energy carriers." E3S Web of Conferences 197 (2020): 01007. http://dx.doi.org/10.1051/e3sconf/202019701007.

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To guarantee a smooth transition to a clean and low-carbon society without abandoning all of a sudden liquid fuels and products derived from fossil resources, power-to-liquids processes can be used to exploit an excess of renewable energy, producing methanol and dimethyl ether (DME) from the conversion of hydrogen and recycled CO2. Such a system could behave as an energy storage system, and/or a source of fuels and chemicals for a variety of applications in several industrial sectors. This paper concerns the conceptual design, performance analysis and comparison of small-scale decentralised in

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Williams, Aubry S. R., Benjamin A. W. Mowbray, Xin Lu, Yongwook Kim, and Curtis P. Berlinguette. "Design of Bipolar Membranes to Increase CO Formation Rates in Bicarbonate Electrolysers at Low Voltage." ECS Meeting Abstracts MA2023-02, no. 39 (2023): 1880. http://dx.doi.org/10.1149/ma2023-02391880mtgabs.

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The electrolysis of bicarbonate solutions offers a direct route for converting alkaline CO2 capture solutions into value-added products. Alkaline CO2 capture exploits the reaction of CO2 with OH- to form aqueous HCO3-, which can be converted back into CO2 in-situ ( i-CO2) by protons sourced from a bipolar membrane (BPM). Bicarbonate electrolysis is currently too energy intensive to be economically viable, with the largest energy input coming from the voltage drop across the membrane. BPMs are usually thicker than monopolar membranes, causing high Ohmic losses and limited water transport to the

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Martinho, Diogo Loureiro, Torsten Berning, Mohammadmahdi Abdollahzadehsangroudi, Anders Rønne Rasmussen, Jakob Hærvig, and Samuel Simon Araya. "A Three-Dimensional, Multiphysics Model of An Alkaline Electrolyzer." ECS Meeting Abstracts MA2023-02, no. 41 (2023): 2017. http://dx.doi.org/10.1149/ma2023-02412017mtgabs.

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During the previous years, increasing awareness of the detrimental effects of greenhouse gas emissions along with the need to supply an increasing world population with electricity has given rise to investments in the field of green energy technology. In particular, research and development has focused on the production of “green hydrogen” which can be used as a source for a sustainable energy system. Green hydrogen can be made from water electrolysis provided the electricity stems from a renewable energy source. Among the different types of water electrolysers, the alkaline electrolyzer cell

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Dresp, Sören, Trung Ngo Thanh, Malte Klingenhof, Sven Brückner, Philipp Hauke, and Peter Strasser. "Efficient direct seawater electrolysers using selective alkaline NiFe-LDH as OER catalyst in asymmetric electrolyte feeds." Energy & Environmental Science 13, no. 6 (2020): 1725–29. http://dx.doi.org/10.1039/d0ee01125h.

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Pollet, Bruno G., Henrik E. Hansen, Svein Sunde, Odne S. Burheim, and Frode Seland. "Sonochemical synthesis of electrocatalysts for low-temperature water electrolysers." Journal of the Acoustical Society of America 151, no. 4 (2022): A38. http://dx.doi.org/10.1121/10.0010583.

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An important step in the process of producing hydrogen a viable method is to improve the efficiency and reduce the cost of low-temperature water electrolysers. One of the most crucial components is the catalyst used to drive the hydrogen evolution reaction (HER) and the oxygen evolution reaction (OER). Traditionally, the nanosized electrocatalysts are synthesized through a chemical reduction method involving a strong reducing agent like sodium borohydride, polyol, etc. Being able to control the nucleation and growth and therefore the size of the nanocatalysts, however, is not straightforward w

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Chade, Daniel, Leonard Berlouis, David Infield, Andrew Cruden, Peter Tommy Nielsen, and Troels Mathiesen. "Evaluation of Raney nickel electrodes prepared by atmospheric plasma spraying for alkaline water electrolysers." International Journal of Hydrogen Energy 38, no. 34 (2013): 14380–90. http://dx.doi.org/10.1016/j.ijhydene.2013.09.012.

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Ferriday, T. B., S. N. Sampathkumar, P. H. Middleton, and J. Van Herle. "Investigation of Wet-Preparation Methods of Nickel Foam For Alkaline Water Electrolysis." Journal of Physics: Conference Series 2430, no. 1 (2023): 012002. http://dx.doi.org/10.1088/1742-6596/2430/1/012002.

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Abstract Water electrolysers are multi-component systems whose performance relies on each part performing its task. A great emphasis has been placed on the development of efficient catalyst-coated electrodes, however the efficacy of the underlying substrate itself has been overlooked. This paper investigates the resulting performance of nickel foam electrodes in 1.0 M KOH after being treated in various concentrations of hydrochloric acid and sulphuric acid. The greatest performance was achieved utilising 0.50 M H2SO4 as measured by LSV, EIS and CV and ECSA, resulting in a 27% decline in series

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Larrea, Carlos, Juan Ramón Avilés-Moreno, and Pilar Ocón. "Strategies to Enhance CO2 Electrochemical Reduction from Reactive Carbon Solutions." Molecules 28, no. 4 (2023): 1951. http://dx.doi.org/10.3390/molecules28041951.

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CO2 electrochemical reduction (CO2 ER) from (bi)carbonate feed presents an opportunity to efficiently couple this process to alkaline-based carbon capture systems. Likewise, while this method of reducing CO2 currently lags behind CO2 gas-fed electrolysers in certain performance metrics, it offers a significant improvement in CO2 utilization which makes the method worth exploring. This paper presents two simple modifications to a bicarbonate-fed CO2 ER system that enhance the selectivity towards CO. Specifically, a modified hydrophilic cathode with Ag catalyst loaded through electrodeposition a

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Scandurra, Antonino, Maria Censabella, Antonino Gulino, Maria Grazia Grimaldi, and Francesco Ruffino. "Electro-Sorption of Hydrogen by Platinum, Palladium and Bimetallic Pt-Pd Nanoelectrode Arrays Synthesized by Pulsed Laser Ablation." Micromachines 13, no. 6 (2022): 963. http://dx.doi.org/10.3390/mi13060963.

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Sustainable and renewable production of hydrogen by water electrolysers is expected to be one of the most promising methods to satisfy the ever-growing demand for renewable energy production and storage. Hydrogen evolution reaction in alkaline electrolyte is still challenging due to its slow kinetic properties. This study proposes new nanoelectrode arrays for high Faradaic efficiency of the electro-sorption reaction of hydrogen in an alkaline electrolyte. A comparative study of the nanoelectrode arrays, consisting of platinum or palladium or bimetallic nanoparticles (NPs) Pt80Pd20 (wt.%), obta

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de Groot, Arend, Sara Fabrizio, Giulia Marcandali, et al. "(Invited) Looking Beyond the Stack: A Systems Engineering Approach to Optimize Stack and System Design of Electrolysers." ECS Meeting Abstracts MA2024-01, no. 34 (2024): 1865. http://dx.doi.org/10.1149/ma2024-01341865mtgabs.

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In the coming decade green hydrogen production is expected to grow at an unparalleled rate. Much of the international focus is currently on the Gigawatt scale plants, with regular announcement of new projects. From a European perspective, the rapid scale-up is necessary to reduce the reliance on fossil fuels and achieve CO₂ reduction targets. Importing green hydrogen or derivatives such as ammonia from regions where renewable electricity cost are low, is key driver for investments for the energy intensive industry, especially in the North Western part of Europe. This will require hydrogen prod

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ARULRAJ, I., and V. VENKATESAN. "Characterization of nickel-molybdenum and nickel-molybdenum-iron alloy coatings as cathodes for alkaline water electrolysers." International Journal of Hydrogen Energy 13, no. 4 (1988): 215–23. http://dx.doi.org/10.1016/0360-3199(88)90088-2.

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Kiaee, Mahdi, David Infield, and Andrew Cruden. "Utilisation of alkaline electrolysers in existing distribution networks to increase the amount of integrated wind capacity." Journal of Energy Storage 16 (April 2018): 8–20. http://dx.doi.org/10.1016/j.est.2017.12.018.

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