High-Efficiency Electrochemical Hydrogen Evolution Catalyzed by Tungsten Phosphide Submicroparticles
Abstract
The development of high-efficiency non-noble-metal hydrogen evolution reaction (HER) electrocatalysts operating at all pH values is highly desired but still remains a challenge. In this letter, we report on developing tungsten phosphide submicroparticles as a high-efficiency HER catalyst with high durability for electrochemical hydrogen generation in acidic water. This catalyst shows a low onset overpotential of 54 mV, a Tafel slope of 57 mV/dec, an exchange current density of 0.017 mA/cm 2, and nearly 100% Faradaic efficiency. It needs overpotentials of 115 and 161 mV to afford current densities of 2 and 10 mA/cm 2, respectively. Moreover, this catalyst is also good in activity and durability under neutral and basic conditions.
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Transition metal dichalcogenides (TMD) materials, such as MoS2, WS2, MoSe2, WSe2, and VSe2, are developed as potential alternatives to Pt-group electrocatalysts for HER due to their constrained electrons within two-dimensional layers.
“Transition metal dichalcogenides (TMD) materials, for instance, MoS2, WS2, MoSe2, WSe2, and VSe2, are developed as potential alternatives of Pt-group electrocatalysts for HER due to their constrained electrons within two-dimensional (2D) layers.2,15−21”
From In-Situ Growth of Few-Layered MoS<sub>2</sub> Nanosheets on Highly Porous Carbon Aerogel as Advanced Electrocatalysts for Hydrogen Evolution Reaction (2015) · cites this paper as [20]
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Noble metal-free hydrogen evolution catalysts for water splitting
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- Authors
- Xing, Z., Liu, Q., Asiri, A. M., & Sun, X.
- Affiliations
- Chinese Academy of Sciences (CN)
- King Abdulaziz University (SA)
- Corresponding author
- Sun, Xuping
- Venue
- ACS Catalysis
- Publisher
- American Chemical Society (ACS)
- Published
- 2014-11-25
- Volume
- 5
- Issue
- 1
- Pages
- 145-149
- ISSN
- 2155-5435 (ISSN-L)
- OpenAlex
- W2324181796
- Cited by
- 238
- References
- 5
- Citations by year
- 2026: 3 · 2025: 6 · 2024: 13 · 2023: 5 · 2022: 14 · 2021: 18 · 2020: 22 · 2019: 35 · 2018: 32 · 2017: 33 · 2016: 34 · 2015: 23
- FWCI
- 9.90
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- ACS Catalysis (publishedVersion)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › CO2 Reduction Techniques and Catalysts
- Physical Sciences › Materials Science › Materials Chemistry › Hydrogen Storage and Materials
- Keywords
- hydrogen evolution reaction, tungsten phosphide, electrocatalysts, non-noble metal catalysts, acidic water, catalyst stability, Faradaic efficiency, overpotential
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