文献类型：期刊文献

英文题名：In situ reconstruction of vegetable sponge-like Bi2O3 for efficient CO2 electroreduction to formate

作者：Shi, Yingli[1];Wen, Chun Fang[1];Wu, Xuefeng[1];Zhao, Jia Yue[1];Mao, Fangxin[1];Liu, Peng Fei[1];Yang, Hua Gui[1]

机构：[1]East China Univ Sci & Technol, Shanghai Engn Res Ctr Hierarch Nanomat, Sch Mat Sci & Engn, Key Lab Ultrafine Mat,Minist Educ, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：6

期号：8

起止页码：1091

外文期刊名：MATERIALS CHEMISTRY FRONTIERS

收录：;EI(收录号：20221611970526);WOS:【SCI-EXPANDED(收录号:WOS:000771090900001)】；

基金：This work was financially supported by the National Natural Science Funds for Distinguished Young Scholars (51725201), the International (Regional) Cooperation and Exchange Projects of the National Natural Science Foundation of China (51920105003), the Innovation Program of Shanghai Municipal Education Commission (E00014), the Science and Technology Commission of Shanghai Municipality (21DZ1207101), the National Natural Science Foundation of China (51902105, 52103340), the Fundamental Research Funds for the Central Universities (JKD01211519), the China Postdoctoral Science Foundation Funded Project (2020M681201), and the Shanghai Engineering Research Center of Hierarchical Nanomaterials (18DZ2252400). The authors also thank the Frontiers Science Center for Materiobiology and Dynamic Chemistry.

语种：英文

外文关键词：Carbon dioxide - Crystallinity - Electrocatalysis - Electrocatalysts - Electrolytic reduction - Vegetables

摘要：The electrochemical reduction reaction of CO2 provides a renewable method to close the carbon cycle and alleviate the global energy issue. Bi-based electrocatalysts present huge prospects for catalyzing formate-selective CO2 reduction. Herein, we fabricated a porous vegetable sponge-like bismuth oxide (VS-Bi2O3) for the selective electroreduction of CO2 to formate, which underwent in situ reconstruction to form 2D nanosheets containing metallic Bi and Bi2O2CO3. We propose that the unique porous morphology and low crystallinity of VS-Bi2O3 are beneficial for the in situ generation of Bi2O2CO3, which might play a significant role in enhancing the CO2 electrocatalysis performance. The catalyst delivers a 93.7% faradaic efficiency of formate at 400 mA cm(-2) and shows stability for over 18 h at 100 mA cm(-2).