CoP‐Doped MOF‐Based Electrocatalyst for pH‐Universal Hydrogen Evolution Reaction
Abstract
Although electrocatalysts based on transition metal phosphides (TMPs) with cationic/anionic doping have been widely studied for hydrogen evolution reaction (HER), the origin of performance enhancement still remains elusive mainly due to the random dispersion of dopants. Herein, we report a controllable partial phosphorization strategy to generate CoP species within the Co-based metal-organic framework (Co-MOF). Density functional theory calculations and experimental results reveal that the electron transfer from CoP to Co-MOF through N-P/N-Co bonds could lead to the optimized adsorption energy of H 2 O (ΔG H 2 O * ) and hydrogen (ΔG H* ), which, together with the unique porous structure of Co-MOF, contributes to the remarkable HER performance with an overpotential of 49 mV at a current density of 10 mA cm -2 in 1 m phosphate buffer solution (PBS, pH 7.0). The excellent catalytic performance exceeds almost all the documented TMP-based and non-noble-metal-based electrocatalysts. In addition, the CoP/Co-MOF hybrid also displays Pt-like performance in 0.5 m H 2 SO 4 and 1 m KOH, with the overpotentials of 27 and 34 mV, respectively, at a current density of 10 mA cm -2 .
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- Authors
- Liu, T., Li, P., Yao, N., Cheng, G., Chen, S., Luo, W., & Yin, Y.
- Affiliations
- University of California, Riverside (US)
- Wuhan University (CN)
- Corresponding author
- Chen, Shengli
- Luo, Wei
- Yin, Yadong
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2019-03-03
- Volume
- 58
- Issue
- 14
- Pages
- 4679-4684
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2914328583
- Cited by
- 606
- References
- 5
- Citations by year
- 2026: 28 · 2025: 36 · 2024: 47 · 2023: 65 · 2022: 95 · 2021: 133 · 2020: 149 · 2019: 53
- FWCI
- 22.86
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Angewandte Chemie International Edition (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (21571145, 21832004)
- 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, cobalt phosphide, cobalt metal-organic framework, transition metal phosphides, cationic doping, pH-universal electrocatalysts, hydrogen adsorption energy, acidic and alkaline electrolytes
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