The activity of nanocrystalline Fe-based alloys as electrode materials for the hydrogen evolution reaction

Müller, Christian I.; Sellschopp, Kai; Tegel, Marcus; Rauscher, T.; Kieback, Bernd; Röntzsch, Lars

doi:10.1016/j.jpowsour.2015.11.008

Cited by 30 publications

(16 citation statements)

References 58 publications

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“…Recently, Gary et al 56 reported a method to synthesize unsupported Ni−Mo nanopowders, which can be suspended in common solvents and cast onto any substrates. In their following work 60 , the effect of the dopants of B and Si on the catalytic activity was quantified in more details. Ternary alloy containing Ni and Mo elements was also reported.…”

Section: Noble Metal-free Alloymentioning

confidence: 99%

Nanostructured catalysts for electrochemical water splitting: current state and prospects

et al. 2016

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Hydrogen is an ideal candidate for the replacement of fossil fuels in the future due to its zero emission of the carbonaceous species during its utilization. Water electrolysis is a dependable link of primary renewable energy and stable hydrogen energy. In this work, the fundamentals of water electrolysis, current popular electrocatalysts developed for cathodic hydrogen evolution reaction (HER) and anodic oxygen evoltion reacion (OER) in liquid electrolyte water electrolysis are reviewed. The main HER catalysts include noble metals, non-noble metal and composites, noble metal-free alloy, metal carbides, chalcogenides, phosphides and metal-free materials while the OER catalysts are focused on efficient Co-based, Ni-based materials and layered double hydroxides (LDH) materials. The strategies to improve catalytic activity, long-term durability and endurance to electrochemical erosions are introduced. The main challenges and future prospects for the further development of electrodes for water electrolysis are discussed. It is expected to give a guidance to the development of novel nanostructured electrocatalysts with low-cost for the electrochemical water splitting.

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Section: Noble Metal-free Alloymentioning

confidence: 99%

Nanostructured catalysts for electrochemical water splitting: current state and prospects

et al. 2016

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“…Nanoparticles and nanosheet morphology are common among HER and OER catalysts. [63][64][65][66] Other shapes that have been fabricated include nanoneedles (or spike-like morphology), nanospheres, nanowires, and nanorods. 46,58,[67][68][69] The shape of nanoparticles may also be tailored into geometrical or polygon structures, or nanosheets may be arranged in such a way to form nanoflowers that are shown to affect catalytic activity.…”

Section: Shape Of Catalystsmentioning

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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“…Electrochemical methods are also widely applied to alloy materials for catalyzing HER in alkaline condition. Müller et al [55] prepared Fe 60 Co 20 Si 10 B 10 alloy for HER in a rapid solidification process using a melt spinning device. The alloy with a composition of Fe 0.75 Co 0.25 is suggested to be the active surface species.…”

Section: Hermentioning

confidence: 99%

Bimetallic Iron–Cobalt Catalysts and Their Applications in Energy-Related Electrochemical Reactions

Peng

et al. 2019

Catalysts

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Since the persistently increasing trend of energy consumption, technologies for renewable energy production and conversion have drawn great attention worldwide. The performance and the cost of electrocatalysts play two crucial roles in the globalization of advanced energy conversion devices. Among the developed technics involving metal catalysts, transition-metal catalysts (TMC) are recognized as the most promising materials due to the excellent properties and stability. Particularly, the iron–cobalt bimetal catalysts exhibit exciting electrochemical properties because of the interior cooperative effects. Herein, we summarize recent advances in iron–cobalt bimetal catalysts for electrochemical applications, especially hydrogen evolution reaction (HER), oxygen evolution reaction (OER), and oxygen reduction reaction (ORR). Moreover, the components and synergetic effects of the composites and catalytic mechanism during reaction processes are highlighted. On the basis of extant catalysts and mechanism, the current issues and prospective outlook of the field are also discussed.

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The activity of nanocrystalline Fe-based alloys as electrode materials for the hydrogen evolution reaction

Cited by 30 publications

References 58 publications

Nanostructured catalysts for electrochemical water splitting: current state and prospects

Nanostructured catalysts for electrochemical water splitting: current state and prospects

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

Bimetallic Iron–Cobalt Catalysts and Their Applications in Energy-Related Electrochemical Reactions

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