Asymmetrically coordinated main group atomic In-S1N3 interface sites for promoting electrochemical CO2 reduction

Yan Gao*, Jinlong Ge, Jingqiao Zhang, Ting Cao, Zhiyi Sun, Wensheng Yan, Yu Wang, Jie Lin*, Wenxing Chen, Zheng Liu*

*此作品的通讯作者

科研成果: 期刊稿件文章同行评审

1 引用 (Scopus)

摘要

Designing catalysts with highly active, selectivity, and stability for electrocatalytic CO2 to formate is currently a severe challenge. Herein, we developed an electronic structure engineering on carbon nano frameworks embedded with nitrogen and sulfur asymmetrically dual-coordinated indium active sites toward the efficient electrocatalytic CO2 reduction reaction. As expected, atomically dispersed In-based catalysts with In-S1N3 atomic interface with asymmetrically coordinated exhibited high efficiency for CO2 reduction reaction (CO2RR) to formate. It achieved a maximum Faradaic efficiency (FE) of 94.3% towards formate generation at −0.8 V vs. reversible hydrogen electrode (RHE), outperforming that of catalysts with In-S2N2 and In-N4 atomic interface. And at a potential of −1.10 V vs. RHE, In-S1N3 achieves an impressive Faradaic efficiency of 93.7% in flow cell. The catalytic performance of In-S1N3 sites was confirmed to be enhanced through in-situ X-ray absorption near-edge structure (XANES) measurements under electrochemical conditions. Our discovery provides the guidance for performance regulation of main group metal catalysts toward CO2RR at atomic scale. (Figure presented.)

源语言英语
期刊Nano Research
DOI
出版状态已接受/待刊 - 2024

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