Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 59, Issue 52, Pages 23791-23799Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.202011358
Keywords
adsorption; high-active window; hydrogen evolution reaction; single-atom catalyst (SAC); phosphorus
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Funding
- Fundamental Research Funds for the Central Universities [0301005202017, 2018CDQYFXCS0017, 106112017CDJXSYY0001]
- Thousand Young Talents Program of the Chinese Central Government [0220002102003]
- National Natural Science Foundation of China (NSFC) [U19A20100, 21971027, 21373280, 21403019]
- Beijing National Laboratory for Molecular Sciences (BNLMS) at Chongqing University [0903005203205]
- Hundred Talents Program at Chongqing University [0903005203205]
- State Key Laboratory of Mechanical Transmissions Project [SKLMT-ZZKT-2017M11]
- Natural Science Foundation of Chongqing [cstc2019jcyj-msxmX0426]
- Science and Technology Research Project of Education Agency in Chongqing [KJZD-K201800102]
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Non-metal-based single-atom catalysts (SACs) offer low cost, simple synthesis methods, and effective regulation for substrates. Herein, we developed a simplified pressurized gas-assisted process, and report the first non-metal single-atom phosphorus with atomic-level dispersion on unique single-crystal Mo2C hexagonal nanosheet arrays with a (001) plane supported by carbon sheet (SAP-Mo2C-CS). The SAP-Mo2C-CS is structurally stable and shows exceptional electrocatalytic activity for the hydrogen evolution reaction (HER). A so-called high-active window based on the active sites of P atoms and their adjacent Mo atoms gives a Delta G(H*) close to zero for hydrogen evolution, which is the most ideal Delta G(H*) reported so far. Meanwhile, the moderate d-band center value of SAP-Mo2C-CS can be also used as an ideal standard value to evaluate the HER performance in non-metal-based SACs.
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