NiCu mixed metal oxide catalyst for alkaline hydrogen evolution in anion exchange membrane water electrolysis

Faid, Alaa Y.; Barnett, Alejandro Oyarce; Seland, Frode; Sunde, Svein

doi:10.1016/j.electacta.2021.137837

Cited by 66 publications

(39 citation statements)

References 78 publications

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“…Once the catalyst powder has been prepared, a catalyst ink/slurry is prepared that, in a second step, is sprayed or painted onto the GDL support [20,79]. A drawback of these wet routes is the use of solvents and the release of unwanted wastes that are potentially dangerous for the environment [80].…”

Section: Preparation Methods For Catalyst Coated Gdl For Aemwementioning

confidence: 99%

“…Weak alkaline operation conditions of the AEMWE cells are compatible with cheap electrode materials, mostly based on Ni and Co, that can be similar to those used in traditional AWE. They also enable the use of membranes cheaper than those incorporated in PEMWE cells [8,19,20]. These anion exchange membrane (AEM) are polymeric membranes that replace the traditional AWE diaphragm circumventing the gas cross-over between the anodic and cathodic chambers [6].…”

Section: Anion Exchange Membrane Water Electrolysismentioning

confidence: 99%

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Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

et al. 2021

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Water electrolysis to obtain hydrogen in combination with intermittent renewable energy resources is an emerging sustainable alternative to fossil fuels. Among the available electrolyzer technologies, anion exchange membrane water electrolysis (AEMWE) has been paid much attention because of its advantageous behavior compared to other more traditional approaches such as solid oxide electrolyzer cells, and alkaline or proton exchange membrane water electrolyzers. Recently, very promising results have been obtained in the AEMWE technology. This review paper is focused on recent advances in membrane electrode assembly components, paying particular attention to the preparation methods for catalyst coated on gas diffusion layers, which has not been previously reported in the literature for this type of electrolyzers. The most successful methodologies utilized for the preparation of catalysts, including co-precipitation, electrodeposition, sol–gel, hydrothermal, chemical vapor deposition, atomic layer deposition, ion beam sputtering, and magnetron sputtering deposition techniques, have been detailed. Besides a description of these procedures, in this review, we also present a critical appraisal of the efficiency of the water electrolysis carried out with cells fitted with electrodes prepared with these procedures. Based on this analysis, a critical comparison of cell performance is carried out, and future prospects and expected developments of the AEMWE are discussed.

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Section: Preparation Methods For Catalyst Coated Gdl For Aemwementioning

confidence: 99%

Section: Anion Exchange Membrane Water Electrolysismentioning

confidence: 99%

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

et al. 2021

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“…21,22 As for the NiCu/C@SiO2-T bimetallic catalysts, all of the diffraction peaks lied between those of metallic Cu and Ni, suggesting the formation of NiCu alloy phase, which was in agreement with the previously reported NiCu bimetallic catalysts. 23,24 It was noteworthy that all NiCu/C@SiO2-T bimetallic catalysts showed much weaker XRD peaks compared to those in the pattern of both monometallic Ni/C@SiO2-800 and Cu/C@SiO2-800 catalysts, indicating low crystallinity and small particle sizes. Moreover, with increasing carbonization temperatures from 750 to 900 °C, the intensity of the diffraction peaks for NiCu alloy was strengthened, and each individual peak exhibited a shift from pure Cu toward pure Ni gradually as well.…”

Section: Characterizations Of Nicu/c@sio2 Catalystsmentioning

confidence: 98%

Highly efficient non-noble metallic NiCu nanoalloy catalysts for hydrogenation of nitroarenes

et al. 2021

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“…Too much ionomer may aggregate catalyst while too little may result in poor dispersion. 48,49 Ionomers for AEMWE preparation are hydroxide-conducting and anion exchange ionomers that may or may not match the AEM composition, such as the ionomer FAA-3, can be utilized alongside an FAA-3 membrane. 50 Nafion ionomer may also be occasionally used.…”

Section: Membranes and Ionomers For Aemwementioning

confidence: 99%

“…72,86 Additionally, charge transfer resistance of the catalytic layer on AEMWE electrodes also considers the layer thickness, where thicker layers result in higher resistance. 48 Different phases of the catalysts may also be an affecting factor. 83…”

Section: Electrical Conductivitymentioning

confidence: 99%

Recent developments on transition metal–based electrocatalysts for application in anion exchange membrane water electrolysis

Sulaiman

Wong

Loh

2021

Intl J of Energy Research

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Anion exchange membrane water electrolyzer (AEMWE) is a promising technology in water electrolysis for the production of green hydrogen. Unlike conventional alkaline water electrolyzers (AWE), AEMWEs utilize mild alkaline conditions and anion exchange membranes as separators and ionic conductors, respectively. However, the largest merit of AEMWE is the utilization of lowcost transition metals as electrocatalysts for hydrogen evolution reaction (HER) and oxygen evolution reaction (OER). Achieving excellent AEMWE performance using highly active and robust transition metal electrocatalysts is desired for lowering the fabrication cost and realizing the successful commercialization of AEMWE. Water splitting efficiency in the AEMWE largely depends on the kinetics of the HER and OER catalysts. Such a condition requires proper understanding of the reaction mechanisms, careful design and optimization of catalyst materials, and maintenance of catalyst durability under AEMWE conditions during long-term operation. This review discussed recent transition metal HER, OER, and bifunctional water splitting electrocatalysts applied within the actual AEMWE membrane electrode assembly (MEA), where their influence toward the electrolyzer cell performance is highlighted. Additionally, the MEA fabrication methods are briefly addressed.From the review, potential electrocatalyst materials and remaining challenges are identified to provide for future improvements on the AEMWE system.

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NiCu mixed metal oxide catalyst for alkaline hydrogen evolution in anion exchange membrane water electrolysis

Cited by 66 publications

References 78 publications

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

Recent Advances in Alkaline Exchange Membrane Water Electrolysis and Electrode Manufacturing

Highly efficient non-noble metallic NiCu nanoalloy catalysts for hydrogenation of nitroarenes

Recent developments on transition metal–based electrocatalysts for application in anion exchange membrane water electrolysis

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