Relevant bibliographies by topics / Catalyst ink

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Catalyst ink'

Author: Grafiati
Published: 8 June 2024
Last updated: 31 July 2025

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Journal articles on the topic "Catalyst ink"

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KIM, Sungmin, Yun Sik Kang, Iksung Lim, et al. "Effect of Post-Heat Treatment of Catalysts Under Various Gas Conditions on the Microstructure of Catalysts Ink and Electrode for PEMFC." ECS Meeting Abstracts MA2024-02, no. 44 (2024): 2986. https://doi.org/10.1149/ma2024-02442986mtgabs.

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Polymer electrolyte membrane fuel cells (PEMFCs) directly convert the chemical energy of fuel into electrical energy, producing electricity through a high-efficiency, ecofriendly energy conversion device. While PEMFCs are commercialized now, enhancing their competitiveness compared to other energy sources is critical and requires an understanding of the microstructure of the membrane-electrode assembly. Typically, fuel cell electrodes are manufactured by coating an electrolyte membrane with catalyst inks composed of electrode catalyst, ionomer, and solvent or additives. To maximize the perform
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Lee, Seon-Ho, Seunghee Woo, Yun Sik Kang, Seokhee Park, and Sung-Dae Yim. "Evaluating Ink Structure Using Ultrasonic Spray Coating for PEMFC MEA." ECS Meeting Abstracts MA2023-02, no. 37 (2023): 1739. http://dx.doi.org/10.1149/ma2023-02371739mtgabs.

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From the standpoint of improving manufacturing productivity and performance/durability of PEMFC MEAs, there is an increasing interest in ink. Ink research is centered on comprehending the interplay between the components of the ink, including catalysts, ionomers, and solvents, to control the ink structure and evaluate its influence on ink properties, catalyst layer microstructure, and fuel cell performance. As a facet of this ink research, the current study proposes ultrasonic spray coating as a methodology to indirectly evaluate the ink structure. 50 wt% Pt/C catalysts loaded on Ketjenblack (
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Liu, Guangxin, David McLaughlin, Simon Thiele, and Chuyen Pham. "Linking Multicomponent Interactions of Catalyst Ink and Catalyst Layer Fabrication with Electrochemical CO2 Reduction Performance." ECS Meeting Abstracts MA2023-01, no. 38 (2023): 2238. http://dx.doi.org/10.1149/ma2023-01382238mtgabs.

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The controllable fabrication of catalyst layers (CL) by tuning the multiscale structure formation is complex but vital to achieving optimum CO2 reduction (CO2R) performance. The CL formation is deeply influenced by catalyst ink. An in-depth understanding on the role of each catalyst ink component and how multicomponent interactions affect ink status, catalyst layer structure, and CO2R performance is crucial. In this work, the roles of various ingredients of catalyst ink were systematically investigated from simple binary inks to complete catalyst inks. Our results showed Ag agglomerates can be
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Du, Shaojie, Shumeng Guan, Shirin Mehrazi, et al. "Effect of Dispersion Method and Catalyst on the Crack Morphology and Performance of Catalyst Layer of PEMFC." Journal of The Electrochemical Society 168, no. 11 (2021): 114506. http://dx.doi.org/10.1149/1945-7111/ac3598.

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The effects of dispersion method for ink preparation and types of catalyst on the catalyst layer’s structure and characteristics were investigated. Catalyst layers prepared by two dispersion methods, i.e., sonication and ball-milling, and two types of catalyst: Pt-HSC (High Surface Area) and Pt-Vulcan XC-72, were fabricated. Viscosity, particle size distribution of the catalyst inks, catalyst layer’s surface properties, and cell performance were measured. Experimental results with the Pt-HSC at ionomer/carbon weight ratio 0.8 show that ink dispersity strongly depends on the mixing method and l
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Sasabe, Takashi, Toshihiko Ogura, Koki Okada, Haruto Oka, Katsunori Sakai, and Shuichiro Hirai. "Influence of Ethanol Decomposition on Dispersion of PEFC Catalyst Ink." ECS Transactions 112, no. 4 (2023): 93–99. http://dx.doi.org/10.1149/11204.0093ecst.

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To achieve high power density operation of polymer electrolyte fuel cells (PEFCs), it is required to realize higher performance catalyst layer. Because dispersion structure of catalyst ink strongly affects the catalyst layer structure, it is crucial to understand the dispersion mechanism of PEFC catalyst ink. Though water/ethanol solution is used as solvent of the catalyst ink, decomposition of ethanol by Platinum catalyst strongly affect dispersion of the catalyst ink. In this study, influence of ethanol decomposition on dispersion of catalyst inks were investigated. Among the decomposition b
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Park, Jaehyung, Nancy N. Kariuki, and Deborah J. Myers. "In-Situ X-Ray Scattering Study of Iridium Oxide Catalyst for Polymer Electrolyte Membrane Water Electrolyzer during Ink Sonication and Drying Process." ECS Meeting Abstracts MA2022-02, no. 39 (2022): 1420. http://dx.doi.org/10.1149/ma2022-02391420mtgabs.

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Polymer electrolyte membrane water electrolyzers (PEMWEs) offer greenhouse gas emission-free hydrogen production for fuel cell vehicles and other industrial uses when using renewable energy sources [1]. Unsupported iridium oxide (IrO2) is the most active stable oxygen evolution reaction (OER) catalyst utilized in the anode of the PEMWE [2]. The atomic and microstructure of IrO2 catalysts and electrodes and interactions between and ionomer and catalyst can affect the ultimate performance of the PEMWE anode. These properties and phenomena may be controlled by the interactions of the ionomer in t
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Khandavalli, Sunilkumar, Jaehyung Park, Robin Rice, et al. "Tuning the Rheology of Anode Inks with Aging for Low-Temperature Polymer Electrolyte Membrane Water Electrolyzers." ECS Meeting Abstracts MA2022-02, no. 40 (2022): 1483. http://dx.doi.org/10.1149/ma2022-02401483mtgabs.

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Low-temperature polymer electrolyte membrane water electrolyzers (PEMWE) are an attractive clean energy technology to produce hydrogen (H2), which is an energy carrier for several applications such as transportation and grid-scale energy storage and distribution (as supported by the US Department of Energy’s H2@Scale initiative). The catalyst layers -- composed of catalyst particles and ionomer, which acts as a binder for the catalyst and a proton conducting medium -- are key components of the PEMWE membrane electrode assembly (MEA). The catalyst layers are commonly fabricated by solution-proc
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Sasabe, Takashi, Toshihiko Ogura, Koki Okada, Haruto Oka, Katsunori Sakai, and Shuichiro Hirai. "Influence of Ethanol Decomposition on Dispersion of PEFC Catalyst Ink." ECS Meeting Abstracts MA2023-02, no. 37 (2023): 1740. http://dx.doi.org/10.1149/ma2023-02371740mtgabs.

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To achieve high power density operation of polymer electrolyte fuel cells (PEFCs), it is required to realize high-performance catalyst layer with low oxygen transport resistance, high proton and electron conductivities, and high electrochemical surface area (ECSA) with low Platinum loading. Because dispersion structure of catalyst ink strongly affects porous structure of the catalyst layer, it is crucial for realization of high-performance catalyst layer to understand the dispersion mechanism of the catalyst ink. Our group has reported that decomposition of ethanol, as a solvent, by platinum c
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Liu, Huiyuan, Linda Ney, Nada Zamel, and Xianguo Li. "Effect of Catalyst Ink and Formation Process on the Multiscale Structure of Catalyst Layers in PEM Fuel Cells." Applied Sciences 12, no. 8 (2022): 3776. http://dx.doi.org/10.3390/app12083776.

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The structure of a catalyst layer (CL) significantly impacts the performance, durability, and cost of proton exchange membrane (PEM) fuel cells and is influenced by the catalyst ink and the CL formation process. However, the relationship between the composition, formulation, and preparation of catalyst ink and the CL formation process and the CL structure is still not completely understood. This review, therefore, focuses on the effect of the composition, formulation, and preparation of catalyst ink and the CL formation process on the CL structure. The CL structure depends on the microstructur
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Sasabe, Takashi, Toshihiko Ogura, Koki Okada, Katsunori Sakai, and Shuichiro Hirai. "(Digital Presentation) Investigation on Effects of I/C Ratio on Dispersion Structure of PEFC Catalyst Ink By Scanning Electron Assisted Dielectric Microscopy." ECS Meeting Abstracts MA2022-02, no. 39 (2022): 1433. http://dx.doi.org/10.1149/ma2022-02391433mtgabs.

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To achieve high power density operation of polymer electrolyte fuel cells (PEFCs), it is required to realize higher performance catalyst layer with low oxygen transport resistance, high proton conductivity, and low Platinum loading. Because dispersion structure of catalyst ink strongly affects the catalyst layer structure, it is crucial to understand the dispersion mechanism of PEFC catalyst ink. We have reported that that solvent composition (ethanol concentration) of the catalyst ink strongly affect dispersion of the catalyst ink [1, 2], but effects of other components on the dispersion of t
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Dissertations / Theses on the topic "Catalyst ink"

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Jacobs, Clayton Jeffrey. "Influence of catalyst ink mixing procedures on catalyst layer properties and in-situ PEMFC performance." Master's thesis, University of Cape Town, 2016. http://hdl.handle.net/11427/22932.

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Despite the benefits of fuel cell technology its advancement to being commercially functional is hindered by a number of crucial factors. These factors are often associated with the lack of appropriate materials or manufacturing routes that would enable the cost of electricity per kWh to compete with existing technology. Whilst most research efforts have been directed towards developing more active catalysts, the amount of catalyst required in the fuel cell can be further reduced by improving the platinum utilisation in the membrane electrode assembly. The platinum utilisation is a strong func
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DELMONDO, LUISA. "Development and characterization of nanostructured catalysts." Doctoral thesis, Politecnico di Torino, 2018. http://hdl.handle.net/11583/2709352.

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The aim of this thesis work is focused on the development and characterization of nanostructured catalysts, in order to exploit them in two different reactions: the Oxygen Reduction Reaction (ORR) and the CO2 Reduction Reaction (CO2RR). The objective of this research is to find economical and ecological materials that could replace platinum as catalyst of the two reactions, while maintaining comparable performance. Considering the ORR, the study is concentrated on the manganese oxide family (MnxOy), structured in the form of nanofibers by electrospinning technique and subsequent thermal treat
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Hepola, Jouko. "Sulfur transformations in catalytic hot-gas cleaning of gasification gas /." Espoo [Finland] : Technical Research Centre of Finland, 2000. http://www.vtt.fi/inf/pdf/publications/2000/P425.pdf.

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TOLOD, KRISTINE. "Visible light-driven catalysts for water oxidation: towards solar fuel biorefineries." Doctoral thesis, Politecnico di Torino, 2019. http://hdl.handle.net/11583/2732969.

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Baker, Jenny. "Development and characterisation of graphene ink catalysts for use in dye sensitised solar cells." Thesis, Swansea University, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.678272.

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ANNAMALAI, ABINAYA. "Electrochemical Energy Conversion Catalysts for Water Oxidation and CO2 Reduction." Doctoral thesis, Università degli studi di Genova, 2022. http://hdl.handle.net/11567/1086344.

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Numerous efforts have been made for the development of renewable energies to replace fossil fuels and thus reduce greenhouse gas emissions. Renewable energy has the advantage of having a limitless supply over time and is clean. This thesis reports on novel transition metal-based electrocatalysts for acidic water splitting and CO2 reduction, which are two significant technologies to produce chemical fuels (i.e. H2 and C-based compounds) from renewable electricity. The target is to develop and investigate cost-effective, stable, and efficient electrocatalysts for acidic water splitting and CO2 r
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AMJAD, UM-E.-SALMA. "Noble Metal based Catalysts for Natural Gas Steam Reforming Activity, Endurance and Kinetics." Doctoral thesis, Politecnico di Torino, 2015. http://hdl.handle.net/11583/2588279.

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This thesis illustrates catalytic activity, stability and intrinsic kinetics of methane steam reforming (MSR) reaction over noble metal catalysts. The main objective of this thesis is to evaluate a best performing catalyst based on the maximization of H2 production and minimization of CO in the synthesis gas produced from MSR reaction. The noble metal catalysts tested towards MSR reaction were Rh, Ru and Pt supported on different reducible and irreducible oxides. The oxides (CeO2, MgO and Al2O3) used in this work were synthesized from their nitrite precursor by Simultaneous combustion synthes
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PEZZOLATO, LORENZO. "Fe-N-C non-noble catalysts for applications in Fuel Cells and Metal Air Batteries." Doctoral thesis, Politecnico di Torino, 2020. http://hdl.handle.net/11583/2809320.

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Turtayeva, Zarina. "Genesis of AEMFC (anion exchange membrane fuel cell) at the lab scale : from PEMFC’s inks composition toward fuel cell bench tests in alkaline media." Electronic Thesis or Diss., Université de Lorraine, 2022. http://www.theses.fr/2022LORR0285.

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Les piles à combustible à membrane échangeuse d'anions (AEMFC) ont récemment attiré l'attention en tant que piles à combustible alternatives à faible coût aux piles à combustible à membrane échangeuse de protons traditionnelles en raison de l'utilisation possible d'électrocatalyseurs non-nobles. Bien que l'AEMFC ressemble à la PEMFC, les problèmes de gestion de l'eau sont plus prégnants dans une AEMFC car l'ORR en milieu alcalin nécessite de l'eau, tandis qu'en même temps, de l'eau est produite en grande quantité du côté de l'anode. Pour mieux comprendre la gestion de l'eau dans ce type de pil
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ERCOLINO, GIULIANA. "Catalytic combustion of methane in lean conditions on Pd/Co​3O4 ​: from powdered to open-cell foam supported catalysts." Doctoral thesis, Politecnico di Torino, 2017. http://hdl.handle.net/11583/2675699.

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The aim of this work is an investigation on a series of Pd-doped cobalt spinels catalysts for the lean CH4 combustion reaction. All the catalysts were synthesized and fully characterized from the structural and surface point of view (XRD, XRF, RS, BET, XPS, and FESEM) and then tested towards the oxidation of CH4 in lean conditions. The work was divided into two parts. In the first part, different catalysts at powder level were screened to optimize the design of Pd-doped cobalt spinel catalysts. In the second part, the best performing Pd-based catalysts previously selected were coated on struct
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Books on the topic "Catalyst ink"

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Anderson, Laurie Halse. Catalyst. Viking, 2002.

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Anne, McCaffrey. Catalyst. Random House Publishing Group, 2010.

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Liedtka, Jeanne. The Catalyst. Crown Publishing Group, 2009.

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Haurum, Lise, Trine Rytter Andersen, and Phillip Shiels. The catalyst experiment. Edited by Bärtås Magnus artist, Cruz Juan 1970 artist, Fusco Maria artist, et al. Catalyst Press, 2017.

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McCaffrey, Anne. Catalyst: A tale of the Barque cats. Del Rey Ballantine Books, 2010.

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Antrobus, Peggy. Womens' leadership: Catalysts for change. Ontario Institute for Studies in Education of the University of Toronto, Centre for Women's Studies in Education, 1998.

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Resta, Paul. Collaborative technologies as a catalyst for changing teacher practices. U.S. Dept. of Education, Office of Educational Research and Improvement, Educational Resources Information Center, 1998.

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Nicola, Triscott, and La Frenais Rob, eds. Zero gravity hebecomoctb: A cultural user's guide : the arts catalyst. Arts Catalyst, 2005.

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Bouchard, Pierrette. School success by gender: A catalyst for the masculinist discourse. Status of Women Canada, 2003.

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1934-, Kustin Kenneth, Pessoa João Costa, Crans Debbie Catharina, and American Chemical Society. Division of Inorganic Chemistry., eds. Vanadium: The versatile metal / Kenneth Kustin, editor, João Costa Pessoa, editor, Debbie C. Crans, editor ; sponsored by the Division of Inorganic Chemistry, Inc. American Chemical Society, 2007.

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Book chapters on the topic "Catalyst ink"

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Duan, Lunbo, and Lin Li. "Oxygen Carrier Aided Gasification (OCAG)." In Oxygen-Carrier-Aided Combustion Technology for Solid-Fuel Conversion in Fluidized Bed. Springer Nature Singapore, 2023. http://dx.doi.org/10.1007/978-981-19-9127-1_5.

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AbstractGasification is regarded as an effective clean utilization technology of solid fuel, which can convert the chemical energy of solid fuel into gaseous fuel. However, the primary gas products contain not only the essential gas products, but also an unacceptable amount of tars, which will cause operational problems such as blockage of downstream equipment during gasification. Catalysts are often used after the gasifier to catalyze tar in the pyrolysis product gas. However, the activity ofcatalysts generally declines over time, as they will be poisoned by prolonged exposure to an atmospher
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Sachdeva, Garima, Dipti Vaya, Varun Rawat, and Pooja Rawat. "Solid-supported Catalyst in Heterogeneous Catalysis." In Heterogeneous Catalysis in Organic Transformations. CRC Press, 2022. http://dx.doi.org/10.1201/9781003126270-5.

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Fechete, Ioana, and Jacques C. Vedrine. "Nano-Oxide Mesoporous Catalysts in Heterogeneous Catalysis." In Nanotechnology in Catalysis. Wiley-VCH Verlag GmbH & Co. KGaA, 2017. http://dx.doi.org/10.1002/9783527699827.ch4.

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Osazuwa, Osarieme Uyi, and Sumaiya Zainal Abidin. "Catalysis for CO2 Conversion; Perovskite Based Catalysts." In Advances in Science, Technology & Innovation. Springer International Publishing, 2021. http://dx.doi.org/10.1007/978-3-030-72877-9_15.

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Pei, Guihong, Feng Yu, and Huafeng Fu. "Photocatalytic Properties of TiO2 in White Ink Wastewater and Its Recycling Using Printing and Dyeing Wastewater." In Advances in Transdisciplinary Engineering. IOS Press, 2023. http://dx.doi.org/10.3233/atde230385.

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This paper mainly studies the white ink wastewater recycling of titanium dioxide pigment white ink wastewater’s titanium dioxide as a catalyst for photocatalytic degradation of dyeing wastewater Chroma. Through selecting the mixing ratio of white ink printing and dyeing wastewater and waste water, pH, illumination time and the type of coagulant four factors, each factor selected five levels of single factor experiments, and ultimately determined the optimal experimental conditions; it was found by a single factor, factors like the ratio of two kinds of water, pH, illumination time have a great
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Shao, Z., and Y. H. Deng. "2.1.1 General Principles of Metal/Organocatalyst Dual Catalysis." In Dual Catalysis in Organic Synthesis 2. Georg Thieme Verlag, 2020. http://dx.doi.org/10.1055/sos-sd-232-00002.

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AbstractMetal/organocatalyst dual catalysis is a privileged catalytic strategy which involves both a metal-based catalyst and an organocatalyst to catalyze the organic transformation. Based on the type of activation of substrates with both catalysts, there are seven kinds of dual catalysis; namely cooperative catalysis, cascade catalysis, sequential catalysis, double activation catalysis, restorative catalysis, bifunctional catalysis, and multiple relay catalysis. The generic activation of the metal-based catalyst and the organocatalyst applied in the dual-catalytic system is summarized. In th
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Yang, Yong. "Cellulose Acetate." In Polymer Data Handbook. Oxford University PressNew York, NY, 2009. http://dx.doi.org/10.1093/oso/9780195181012.003.0014.

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Abstract Major Applications Textile fibers, cigarette filters, plastics for molding and extrusion, films for photography and recording tape, LCD display, drug release modifier, sheeting, lacquers, protective coatings for paper, metal, and glass, adhesive for photographic film, ink reservoirs for fiber tip pens, absorbent cloths, and wipes. Preparative Techniques Cellulose acetate is made from processed wood pulp (cellulose). The pulp is processed using acetic anhydride to form acetate flake from which products are made. Another technique for producing cellulose acetate involves treating cotton
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Abhijeet Kr Shrivastava, Dr. "NANOCATALYSIS: NEW DIMENSIONS IN CATALYTIC INDUSTRY." In Futuristic Trends in Chemical Material Sciences & Nano Technology Volume 3 Book 14. Iterative International Publishers, Selfypage Developers Pvt Ltd, 2024. http://dx.doi.org/10.58532/v3becs14p4ch1.

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Nanocatalysis is a cutting-edge field of catalysis that involves the use of nanomaterials as catalysts for various chemical reactions. Catalysis itself is a process wherein a substance, known as a catalyst, accelerates the rate of a chemical reaction without being consumed in the process. This unique property of catalysts is vital for many industrial processes, including the production of fuels, pharmaceuticals, and chemicals.
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Maskill, Howard. "Catalysis of organic reactions in solution by small molecules and ions." In Structure and Reactivity in Organic Chemistry. Oxford University Press, 1999. http://dx.doi.org/10.1093/hesc/9780198558200.003.0004.

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This chapter focuses on the catalysis of organic reactions in solution by small molecules and ions. Catalysis is the enhancement of the rate of a reaction by a compound (the catalyst) not generally present in the chemical equation which describes the reaction. Normally, a catalyst remains unchanged by the chemical reaction it catalyzes. It brings about the rate enhancement by providing a reaction pathway additional to the one which occurs in its absence. This additional pathway will have its own rate law, and the total rate of reaction in the presence of the catalyst is the sum of the catalyse
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Nakao, Y. "1.1.1 General Principles of Metal/Metal Dual Catalysis." In Dual Catalysis in Organic Synthesis 1. Georg Thieme Verlag, 2020. http://dx.doi.org/10.1055/sos-sd-231-00003.

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AbstractThe background and principles of dual metal/metal catalysis are briefly introduced in this section, with a particular focus on novel C–C bond-forming cross-coupling-type reactions. By taking advantage of synergistic dual metal/metal catalysis, these transformations have provided the synthetic and organometallic communities with new ideas to design challenging transformations that are difficult to catalyze using a conventional, single metal catalyst.
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Conference papers on the topic "Catalyst ink"

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Azhar, Norhazirah, Thye-Foo Choo, Nur Ubaidah Saidin, and Nurazila Mat Zali. "Transfer Efficiency and Morphology of Different Concentrations of Catalyst Ink in Fuel Cell Electrode Preparation." In International Conference on X-Rays and Related Techniques in Research and Industry 2023. Trans Tech Publications Ltd, 2025. https://doi.org/10.4028/p-lt4tsq.

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In the fabrication of fuel cell electrodes, applying catalyst ink onto a substrate is crucial. The performance of the proton exchange membrane fuel cell (PEMFC) is subsequently impacted by how the catalyst is applied onto substrate as well as in terms of its resulting morphology. In this study, a direct catalyst ink spraying approach was done in order to investigate transfer efficiency and surface morphology for different concentrations of ink. The concentration of catalyst ink used in the spraying process are 0.5, 1.0, 1.5, 2.0 and 2.5 mg/ml with fixed loading of 1.0 mg/cm2. The transfer effi
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Fatima-Zohra, Hibbi, and Mtafi Oifâa. "Digitalisation in Moroccan Institutions: A Catalyst for innovation and transformation." In 2025 5th International Conference on Innovative Research in Applied Science, Engineering and Technology (IRASET). IEEE, 2025. https://doi.org/10.1109/iraset64571.2025.11008246.

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Singh, Rajiv, and Priti Maheshwary. "RPA as a Catalyst for Agile Transformation in Software Development." In 2024 IEEE 2nd International Conference on Innovations in High Speed Communication and Signal Processing (IHCSP). IEEE, 2024. https://doi.org/10.1109/ihcsp63227.2024.10960164.

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Koraishy, Babar M., Sam Solomon, Jeremy P. Meyers, and Kristin L. Wood. "Parametric Investigations of Direct Methanol Fuel Cell Electrodes Manufactured by Spraying." In ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/fuelcell2011-54824.

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Manufacture of fuel cell electrodes by the thin-film method was originally proposed by Wilson et al. [1, 2] for proton-exchange membrane fuel cells (PEMFCs). This technology was subsequently utilized for the manufacture of direct methanol fuel cell (DMFC) electrodes by Ren et al. [3]. Key processing steps in the thin-film process are catalyst ink formulation and its application. The catalyst ink is typically composed of supported or unsupported catalysts, binder (ionomer), solvents and additives. Rheological properties of the ink, amount of binder, and choice of solvents are tuned to match the
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Bradford, Michael C., and Logan Preston. "Marker Ink Impact on Prototype Catalyst Performance." In Automotive Technical Papers. SAE International, 2018. http://dx.doi.org/10.4271/2018-01-5009.

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Rajalakshmi, N., R. Rajini, and K. S. Dhathathreyan. "High Performance Polymer Electrolyte Membrane Fuel Cell Electrodes." In ASME 2004 2nd International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2004. http://dx.doi.org/10.1115/fuelcell2004-2484.

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Several methods are being attempted to improve the performance of PEM Fuel cell electrodes so that the cost of the overall system can be brought down. The performance can be improved if the utilization of the catalyst in the electrode increases. One of the early successful method was to add a proton conducting polymer, such as NafionR to the catalyst layer. However there is a limit to the amount of NafionR that can be added as too much NafionR affect the gas diffusion. The other method is to increase the surface area of the catalyst used which has also been adequately demonstrated. Alternative
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Hoffman, Casey J., and Daniel F. Walczyk. "Direct Spraying of Catalyst Inks for PEMFC Electrode Manufacturing." In ASME 2011 9th International Conference on Fuel Cell Science, Engineering and Technology collocated with ASME 2011 5th International Conference on Energy Sustainability. ASMEDC, 2011. http://dx.doi.org/10.1115/fuelcell2011-54416.

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Automated manufacturing techniques are needed to reduce production costs for polymer electrolyte membrane (PEM) fuel cell electrodes. The work presented in this paper focuses on the use of a low pressure, low volume direct spray valve that uses air pressure to atomize fluids and transfer them to a gas diffusion layer (GDL) to produce a gas diffusion electrode (GDE). Two of these electrodes would then be joined with a polymer electrolyte membrane to produce a fuel cell membrane electrode assembly (MEA). Accurate and reproducible deposition methods such as this will result in less wasted materia
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McGrath, Kimberly, and Douglas Carpenter. "Improved Electrocatalytic Activity of Oxygen Reduction on Platinum Using Nano-Cobalt in Direct Methanol Fuel Cell Cathode Electrodes." In ASME 2006 4th International Conference on Fuel Cell Science, Engineering and Technology. ASMEDC, 2006. http://dx.doi.org/10.1115/fuelcell2006-97198.

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High surface area nanometal particles of nano-cobalt (n-Co) (approx 8 nm particles), produced at QuantumSphere Inc., were blended in various ratios with Pt and Nafion® ionomer, and investigated for their electrocatalytic activity in the oxygen reduction reaction (ORR). The ORR was evaluated by voltammetry using Pt/n-Co blended catalyst on glassy carbon to determine both kinetic activity and as an indicator of direct methanol fuel cell (DMFC) cathode performance. Kinetic enhancement was observed for Pt:n-Co where n-Co is 30–50% (by weight) of the catalyst mixture, including a minimum of 10 mV i
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Hollinger, Adam S., and Paul J. A. Kenis. "Electrohydrodynamic-Jet Deposition of Pt-Based Fuel Cell Catalysts." In ASME 2016 14th International Conference on Fuel Cell Science, Engineering and Technology collocated with the ASME 2016 Power Conference and the ASME 2016 10th International Conference on Energy Sustainability. American Society of Mechanical Engineers, 2016. http://dx.doi.org/10.1115/fuelcell2016-59454.

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Fuel cell electrodes are traditionally fabricated by hand-painting or spraying a catalyst ink onto a gas diffusion electrode or membrane. However, electrodes prepared via these techniques do not always have a uniform distribution of catalyst. Recently, electrohydrodynamic-jet (e-jet) printing has been developed as a method to deposit a variety of chemical and biological materials with excellent precision for various applications in electronics, biotechnology, and microelectro-mechanical systems. Here we demonstrate e-jet deposition of Pt-based fuel cell catalysts as a technique for achieving u
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Olukeye, Tiwaloluwa, Ali Alshweiki, Uche Udeochu, Bushra Bari, and Pawan Tyagi. "Economical Catalyst for Fuel Cell Applications: Cobalt-Based Layered Double Hydroxides (LDHS)." In ASME 2024 International Mechanical Engineering Congress and Exposition. American Society of Mechanical Engineers, 2024. https://doi.org/10.1115/imece2024-146164.

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Abstract In fuel cell technology, researchers are fervently looking for alternatives to expensive and rare materials like platinum as the demand for sustainable energy solutions continues to rise. Due to their remarkable electrochemical properties, layered double hydroxides (LDHs) based on cobalt have emerged as intriguing potential candidates. In this study, we investigate the possibility of using LDHs instead of platinum in fuel cells. We aim to reveal the potential of LDHs to revolutionize the landscape of fuel cell applications by providing a sustainable and financially feasible solution f
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Reports on the topic "Catalyst ink"

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Olsen, Daniel, Bryan Hackleman, and Rodrigo Bauza Tellechaea. PR-179-16207-R01 Oxidation Catalyst Degradation on a 2-Stroke Lean-Burn NG Engine - Washing. Pipeline Research Council International, Inc. (PRCI), 2019. http://dx.doi.org/10.55274/r0011586.

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Oxidation catalysts are often utilized to reduce carbon monoxide, formaldehyde, and volatile organic compounds in order to meet emissions regulations for large bore natural gas engines. These catalysts degrade over time and need to be replaced or regenerated to maintain emissions compliance. This work evaluates the effectiveness of catalyst regeneration, or catalyst washing. The evaluation is performed by utilizing field and laboratory slip streams combined with catalyst module performance (reduction efficiency) measurements and catalyst material surface analysis to quantify catalyst poisons.
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Stevens and Olsen. PR-179-12214-R01 CO Sensor Experimental Evaluation for Catalyst Health Monitoring. Pipeline Research Council International, Inc. (PRCI), 2014. http://dx.doi.org/10.55274/r0010827.

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Oxidation catalysts and three-way catalysts can be used to reduce the amount of CO present in engine exhaust. For 2-stroke lean-burn engines, the oxidation catalyst degrades over time be-cause of the buildup of poisons such as sulfur, zinc, phosphorous, and calcium. Three-way cata-lysts used with stoichiometric engines also degrade over time. Emissions analyzers are often used to evaluate the degradation of oxidation catalysts and three-way catalysts, but it can be very time consuming and expensive. Ideally, a simple sensor system would be beneficial for operating companies to determine if the
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Badrinarayanan and Olsen. PR-179-11201-R01 Performance Evaluation of Multiple Oxidation Catalysts on a Lean Burn Natural Gas Engine. Pipeline Research Council International, Inc. (PRCI), 2012. http://dx.doi.org/10.55274/r0010772.

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Two-way catalysts or oxidation catalysts are the common after-treatment systems used on lean burn natural gas engines to reduce CO, VOCs and formaldehyde emissions. The study evaluates the performance of oxidation catalysts from commercial vendors for varying catalyst temperature and space velocity. For this study, a part of the exhaust from a Waukesha VGF-18 GL lean burn natural gas engine was flowed through a catalyst slipstream system to assess the performance of the oxidation catalysts. The slipstream is used to reduce the size of the catalysts and to allow precise control of temperature a
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Olsen and Neuner. PR-179-12207-R01 Performance Measurements of Oxidation Catalyst on an Exhaust Slipstream. Pipeline Research Council International, Inc. (PRCI), 2013. http://dx.doi.org/10.55274/r0010800.

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Oxidation catalysts are effective at reducing CO, formaldehyde, and VOCs as long as the catalyst temperature is above the light-off temperature for each species. It is important to understand the effects of temperature and space velocity on regulated species in order to effectively apply oxidation catalyst technology to lean burn engines, in particular 2-stroke engines that typically have lower exhaust temperatures. Various catalysts were tested on an exhaust slipstream coupled to a 4-stroke lean-burn engine which allows tests to be conducted at different temperatures and flow rates. The effec
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Wongkasemjit, Sujitra. Treatment of dye containing in textile wastewater using TS-1, Ti-MCM-41 and Bismuth Titanate Catalysts : final report. Chulalongkorn University, 2007. https://doi.org/10.58837/chula.res.2007.94.

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This research was to study the photocatalytic activity of three different metal oxide catalysts, namely MCM-41, TS-1, and bismuth titanate (Bi[subscript 12]TiO[subscript 20]) in the reactive black 5 dye solution and the waste water obtained from a dye industry. These catalysts were synthesized using silatrane, titanium glycolate and bismuth nitrate precursors. The degradation process was first studied in the reactive black 5 dye model. The parameters in this study were pH, amounts of H[subscript 2]O[subscript 2] and Ti-loading in zeolite structure while fixing the organic dye at 40 ppm. At pH3
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Defoort, Willson, and Olsen. L51849 Performance Evaluation of Exhaust Catalysts During the Initial Aging on Large Industrial Engines. Pipeline Research Council International, Inc. (PRCI), 2001. http://dx.doi.org/10.55274/r0011213.

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An investigation of catalyst performance during the initial aging process, providing insight into the deactivation rate of the catalyst and assisting in predicting the operational lifetime of the catalyst was preformed. The information gained through the test program provides a mechanism to assist in developing new technologies geared at reducing engine emission while providing improvements in efficiency, reliability, and operability for the aging industrial reciprocating engine fleet. Two natural gas lean burn engines, a 2-stroke, large bore slow speed and a 4-stroke medium bore medium speed,
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Swanson, Dr Larry, and Christopher Samuelson. PR-362-06208-R01 Evaluation of Byproduct Emissions from Gas Turbine SCR Catalyst. Pipeline Research Council International, Inc. (PRCI), 2009. http://dx.doi.org/10.55274/r0010978.

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The primary objective of the test program was to evaluate byproduct emissions at steady state and transient operating conditions for two commercially available SCR catalysts used in gas turbine applications. Both NOX removal efficiency and ammonia slip behavior were also examined to validate expected catalyst trends and activity. Even though the study replicated expected field catalyst process conditions as well as possible (e.g., flue gas temperatures, space velocities, and inlet species concentrations), the data and results are from pilot-scale testing only, and consequently may differ from
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Bauza, Rodrigo, and Daniel Olsen. PR-179-20200-R01 Improved Catalyst Regeneration Process to Increase Poison Removal. Pipeline Research Council International, Inc. (PRCI), 2021. http://dx.doi.org/10.55274/r0012106.

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In this work, the details of catalyst poison deposition are studied, and new catalyst restoration methods are explored. Lubrication oil makes its way through the combustion chamber and into the exhaust system, depositing poisons onto the catalyst and degrading catalyst performance. To estimate the degradation rate of the units and to find the best restoration method, two identical alumina-platinum oxidation catalysts were used in a dual setting, combining a field degradation engine and a laboratory testing engine. In order to find the best restoration process, the combination of both baking an
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Chavadej, Sumaeth, Thammanoon Sreethawong, Anothai Tansuwan, and Thanapoom Suwannabart. Ethylene oxide reaction over Ag catalysts in low-temperature corona discharge. Chulalongkorn University, 2009. https://doi.org/10.58837/chula.res.2009.80.

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Part 1: The epoxidation of ethylene over different catalysts - namely Ag/(low-surface-area, LSA)-Al2O3, Ag/(high-surface-area, HSA)γ-Al2O3, and Au-Ag/(HSA)γ-Al2O3 - in a low-temperature corona discharge system was investigated. In a comparison among the studied catalysts, the Ag/(LSA)-Al2O3 catalyst was found to offer the highest selectivity for ethylene oxide, as well as the lowest selectivity for carbon dioxide and carbon monoxide. The selectivity for ethylene oxide increased with increasing applied voltage, while the selectivity for ethylene oxide remained unchanged when the frequency was
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Jones and Hagedorn. PR-266-13206-R01 Role of Fuel Borne Metallic Catalysts in the Inhibition of NOx Formation. Pipeline Research Council International, Inc. (PRCI), 2014. http://dx.doi.org/10.55274/r0010994.

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Fuel borne catalysts (FBC) are additives that are mixed with the fuel prior to it passing into the combustion chamber. Metallic FBC are claimed to substantially reduce NOx in lean burn engines and otherwise improve performance characteristics. The purpose of this project is to research current literature on FBC and evaluate these catalyst materials and their economics to ultimately develop a plan that will lead to laboratory measurements on a full-scale, natural gas fired engine and, potentially, field tests. The first phase of the project, reported herein, consists of four parts: a review of
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