Two‐Dimensional Porous Molybdenum Phosphide/Nitride Heterojunction Nanosheets for pH‐Universal Hydrogen Evolution Reaction
Abstract
Herein, we present a new strategy for the synthesis of 2D porous MoP/Mo 2 N heterojunction nanosheets based on the pyrolysis of 2D [PMo 12 O 40 ] 3- -melamine (PMo 12 -MA) nanosheet precursor from a polyethylene glycol (PEG)-mediated assembly route. The heterostructure nanosheets are ca. 20 nm thick and have plentiful pores ( 2 N heterojunction nanosheets exhibit excellent HER activity with low overpotentials of 89, 91 and 89 mV to achieve a current density of 10 mA cm -2 in alkaline, neutral and acidic electrolytes, respectively. The HER performance is superior to the commercial Pt/C at a current density >55 mA cm -2 in neutral medium and >190 mA cm -2 in alkaline medium.
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The scarcity, high cost and poor electrochemical durability of Pt catalysts seriously hamper industrial-scale production of hydrogen.
“Nevertheless, the scarcity, high cost and poor electrochemical durability of Pt catalysts seriously hamper its industrial-scale production of hydrogen [6].”
The density of localized states near the Fermi level in the Pt@Mo2C heterostructure is higher than in pure Pt (111), suggesting that the heterointerfaces improve electron mobility, enabling rapid electron transfer throughout the HER process.
“Furthermore, the density of localized states near the Fermi level in the Pt@Mo2C heterostructure is higher than that in pure Pt (111) (Fig. 6A, B), suggesting that the heterointerfaces are capable of improving electron mobility, thereby enabling rapid electron transfer throughout the HER process [46].”
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References 64 · Cited by 363
- Authors
- Gu, Y., Wu, A., Jiao, Y., Zheng, H., Wang, X., Xie, Y., Wang, L., Tian, C., & Fu, H.
- Affiliations
- Harbin Engineering University (CN)
- Ministry of Education of the People's Republic of China (CN)
- Corresponding author
- Tian, Chungui
- Fu, Honggang
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2021-02-08
- Volume
- 60
- Issue
- 12
- Pages
- 6673-6681
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W3111729625
- Cited by
- 363
- References
- 64
- Citations by year
- 2026: 25 · 2025: 58 · 2024: 68 · 2023: 81 · 2022: 87 · 2021: 44
- FWCI
- 10.48
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Angewandte Chemie International Edition (publishedVersion)
- PubMed (publishedVersion)
- Funders
- National Natural Science Foundation of China (21631004, 91961111, 21901064, 21771059)
- Natural Science Foundation of Heilongjiang Province (YQ2019B005)
- Topics
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Electrocatalysts for Energy Conversion
- Physical Sciences › Energy › Renewable Energy, Sustainability and the Environment › Advanced Photocatalysis Techniques
- Physical Sciences › Materials Science › Materials Chemistry › Polyoxometalates: Synthesis and Applications
- Keywords
- hydrogen evolution reaction, porous nanosheets, two-dimensional materials, melamine precursor, pyrolysis, pH-universal electrocatalysis, water dissociation kinetics, mass transfer, alkaline electrolyte, acidic electrolyte, neutral electrolyte
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