期刊
NATURE COMMUNICATIONS
卷 11, 期 1, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/s41467-020-16848-8
关键词
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资金
- National Key Research and Development Program of China [2017YFB0701600]
- National Natural Science Foundation of China [21890383, 21671117, 21871159, 51631001, 21801015, 51872030, 21643003, 51702016, 51501010, 11874036]
- Guangdong Province Key Area RD Program [2019B010940001]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01N111]
- Basic Research Project of Shenzhen, China [JCYJ20170412171430026]
- Beijing Institute of Technology Research Fund Program for Young Scholars [3090012221909]
- Fundamental Research Funds for the Central Universities
- National Key R&D Program of China [2018YFA0702003]
Atomic interface regulation is thought to be an efficient method to adjust the performance of single atom catalysts. Herein, a practical strategy was reported to rationally design single copper atoms coordinated with both sulfur and nitrogen atoms in metal-organic framework derived hierarchically porous carbon (S-Cu-ISA/SNC). The atomic interface configuration of the copper site in S-Cu-ISA/SNC is detected to be an unsymmetrically arranged Cu-S1N3 moiety. The catalyst exhibits excellent oxygen reduction reaction activity with a half-wave potential of 0.918V vs. RHE. Additionally, through in situ X-ray absorption fine structure tests, we discover that the low-valent Cuprous-S1N3 moiety acts as an active center during the oxygen reduction process. Our discovery provides a universal scheme for the controllable synthesis and performance regulation of single metal atom catalysts toward energy applications.
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