Journal
ENERGY & ENVIRONMENTAL SCIENCE
Volume 13, Issue 9, Pages 2856-2863Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d0ee01486a
Keywords
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Funding
- National Natural Science Foundation of China [51631001, 21801015, 51872030, 21643003, 51702016, 51501010, 21703219, 21890383, 21671117, 21871159]
- Beijing Institute of Technology Research Fund Program for Young Scholars [3090012221909]
- Fundamental Research Funds for the Central Universities
- National Key RAMP
- D Program of China [2018YFA0702003]
- Science and Technology Key Project of Guangdong Province of China [2020B010188002]
- Analysis AMP
- Testing Center of Beijing Institute of Technology
- Beijing Zhongkebaice Technology Service Co., Ltd.
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Main group antimony (Sb) species are promising electrocatalysts that promote the CO(2)reduction reaction (CO2RR) to formate, which is an important hydrogen storage material and a key chemical intermediate in many industrial reactions. Herein, we discovered that an Sb single atom (SA) material consisting of Sb-N(4)moieties anchored on N-doped carbon (NC) nanosheets (named Sb SA/NC) could serve as a CO2RR catalyst to produce formate with high efficiency. Sb SA/NC exhibited a formate faradaic efficiency of 94.0% at -0.8 Vvs.RHE.In situX-ray absorption fine structure (XAFS) investigations and density functional theory (DFT) calculations demonstrated that the excellent CO2RR activity originated from the positively charged Sb delta+-N-4(0 < 3) active sites. Our results present significant guidelines for the rational design and accurate modulation of main group metal (Sb, In, Sn, Bi,etc.) catalysts for the CO2RR at the atomic scale.
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