WC as a non-platinum hydrogen evolution electrocatalyst for high temperature PEM water electrolysers

Nikiforov, Aleksey Valerievich; Petrushina, Irina; Christensen, Erik R.; Alexeev, N.; Самохин, А. В.; Bjerrum, Niels

doi:10.1016/j.ijhydene.2012.09.112

Cited by 65 publications

(29 citation statements)

References 20 publications

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“…At lower temperatures, Pt was always found to be the most active catalyst although a remarkable tendency of increasing HER activity of WC with temperature was observed before [43]. According to the present results, the onset potential for the HER is about 150 mV more positive for a WC catalyst than for Pt at 260 C under the applied conditions.…”

Section: Electrochemical Characterisationsupporting

confidence: 53%

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Transition metal carbides (WC, Mo2C, TaC, NbC) as potential electrocatalysts for the hydrogen evolution reaction (HER) at medium temperatures

Meyer

Nikiforov

Petrushina

et al. 2015

International Journal of Hydrogen Energy

188

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Section: Electrochemical Characterisationsupporting

confidence: 53%

“…The HER activity of transition metal carbide catalysts strongly depends on the reaction temperature as was shown by a WC catalyst in 85% H 3 PO 4 solution [43]. In the range of 25 Ce150 C, the HER activity of WC increased significantly.…”

Section: Introductionmentioning

confidence: 92%

Transition metal carbides (WC, Mo2C, TaC, NbC) as potential electrocatalysts for the hydrogen evolution reaction (HER) at medium temperatures

Meyer

Nikiforov

Petrushina

et al. 2015

International Journal of Hydrogen Energy

188

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“…Moreover, HTE must also address stricter temperature control and safety issues, as well as use of appropriate construction materials. [149][150][151][152][153] Although alkaline water electrolysis is undergoing continuous improvement, it may currently be seen as a mature technology, with reasonable efficiency when compared to other emergent water electrolysis systems. Although PEM electrolyzers have high efficiencies, they need to overcome several technical hitches.…”

Section: Future Trendsmentioning

confidence: 99%

Hydrogen production by alkaline water electrolysis

Santos¹,

Sequeira²,

Figueiredo³

2013

Quím. Nova

389

226

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Recebido em 13/12/12; aceito em 28/5/13; publicado na web em 17/7/13Water electrolysis is one of the simplest methods used for hydrogen production. It has the advantage of being able to produce hydrogen using only renewable energy. To expand the use of water electrolysis, it is mandatory to reduce energy consumption, cost, and maintenance of current electrolyzers, and, on the other hand, to increase their efficiency, durability, and safety. In this study, modern technologies for hydrogen production by water electrolysis have been investigated. In this article, the electrochemical fundamentals of alkaline water electrolysis are explained and the main process constraints (e.g., electrical, reaction, and transport) are analyzed. The historical background of water electrolysis is described, different technologies are compared, and main research needs for the development of water electrolysis technologies are discussed.

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“…c SEM image of WC powder, produced in a plasma reactor after carburization. d Tafel curves obtained for platinum electrodes at different temperatures in 85% phosphoric acid at a scan speed of 1 mV s −1 [344] for noble metals, which reduce Pt loading and subsequently decrease PEM electrolysis operational costs [343,[345][346][347][348][349]. In a study conducted by Kelly et al [345], Pd supported on tungsten carbide (WC) and molybdenum carbide (Mo 2 C) was evaluated for the HER activity.…”

Section: Non-noble Metalmentioning

confidence: 99%

Recent Progresses in Electrocatalysts for Water Electrolysis

Khan

Zhao

Zou

et al. 2018

Electrochem. Energ. Rev.

360

178

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The study of hydrogen evolution reaction and oxygen evolution reaction electrocatalysts for water electrolysis is a developing field in which noble metal-based materials are commonly used. However, the associated high cost and low abundance of noble metals limit their practical application. Non-noble metal catalysts, aside from being inexpensive, highly abundant and environmental friendly, can possess high electrical conductivity, good structural tunability and comparable electrocatalytic performances to state-of-the-art noble metals, particularly in alkaline media, making them desirable candidates to reduce or replace noble metals as promising electrocatalysts for water electrolysis. This article will review and provide an overview of the fundamental knowledge related to water electrolysis with a focus on the development and progress of non-noble metal-based electrocatalysts in alkaline, polymer exchange membrane and solid oxide electrolysis. A critical analysis of the various catalysts currently available is also provided with discussions on current challenges and future perspectives. In addition, to facilitate future research and development, several possible research directions to overcome these challenges are provided in this article.

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WC as a non-platinum hydrogen evolution electrocatalyst for high temperature PEM water electrolysers

Cited by 65 publications

References 20 publications

Transition metal carbides (WC, Mo2C, TaC, NbC) as potential electrocatalysts for the hydrogen evolution reaction (HER) at medium temperatures

Transition metal carbides (WC, Mo2C, TaC, NbC) as potential electrocatalysts for the hydrogen evolution reaction (HER) at medium temperatures

Hydrogen production by alkaline water electrolysis

Recent Progresses in Electrocatalysts for Water Electrolysis

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