引用本文:
Bo-Qiang Miao, Wen-Sheng Fang, Bin Sun, Fu-Min Li, Xiao-Chen Wang, Bao-Yu Xia, Yu Chen. Defect-rich Bismuth Metallene for Efficient CO2 Electroconversion[J]. Chinese Journal of Structural Chemistry,
2023, 42(8): 100095.
doi:
10.1016/j.cjsc.2023.100095
Citation: Bo-Qiang Miao, Wen-Sheng Fang, Bin Sun, Fu-Min Li, Xiao-Chen Wang, Bao-Yu Xia, Yu Chen. Defect-rich Bismuth Metallene for Efficient CO2 Electroconversion[J]. Chinese Journal of Structural Chemistry, 2023, 42(8): 100095. doi: 10.1016/j.cjsc.2023.100095
Citation: Bo-Qiang Miao, Wen-Sheng Fang, Bin Sun, Fu-Min Li, Xiao-Chen Wang, Bao-Yu Xia, Yu Chen. Defect-rich Bismuth Metallene for Efficient CO2 Electroconversion[J]. Chinese Journal of Structural Chemistry, 2023, 42(8): 100095. doi: 10.1016/j.cjsc.2023.100095
Defect-rich Bismuth Metallene for Efficient CO2 Electroconversion
摘要:
Bismuth (Bi)-based nanomaterials are highly efficient electrocatalysts for carbon dioxide reduction (CO2RR), which still have huge scope for synthesis optimization and performance improvement. In this work, we develop a fast ultrasound-assisted galvani replacement reaction to synthesize two-dimensional metallic Bi metallene (Bi ML) with an ultrathin thickness of 1.5 nm, high surface area, and abundant atomic defects. The electrochemical characterization shows that Bi ML can achieve a faradaic efficiency of ~94% for the CO2RR to formate, accompanied by good stability. Density functional theory calculations show that the atomic vacancy can change the electronic structure of the surrounding atoms, which contributes to the selectivity enhancement of the CO2RR for formate production. This work provides an efficient method for the rapid large-scale preparation of high-performance Bibased two-dimensional nanomaterials for the CO2RR.
English
Defect-rich Bismuth Metallene for Efficient CO2 Electroconversion
Abstract:
Bismuth (Bi)-based nanomaterials are highly efficient electrocatalysts for carbon dioxide reduction (CO2RR), which still have huge scope for synthesis optimization and performance improvement. In this work, we develop a fast ultrasound-assisted galvani replacement reaction to synthesize two-dimensional metallic Bi metallene (Bi ML) with an ultrathin thickness of 1.5 nm, high surface area, and abundant atomic defects. The electrochemical characterization shows that Bi ML can achieve a faradaic efficiency of ~94% for the CO2RR to formate, accompanied by good stability. Density functional theory calculations show that the atomic vacancy can change the electronic structure of the surrounding atoms, which contributes to the selectivity enhancement of the CO2RR for formate production. This work provides an efficient method for the rapid large-scale preparation of high-performance Bibased two-dimensional nanomaterials for the CO2RR.
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