文献类型：期刊文献

英文题名：Hydrophobic 1-octadecanethiol functionalized copper catalyst promotes robust high-current CO2 gas-diffusion electrolysis

作者：Xue, Liangyao[1];Wu, Xuefeng[1];Liu, Yuanwei[1];Xu, Beibei[2,3];Wang, Xuelu[2,3];Dai, Sheng[4,5];Liu, Pengfei[1];Yang, Huagui[1]

机构：[1]East China Univ Sci & Technol, Sch Mat Sci & Engn, Shanghai Engn Res Ctr Hierarch Nanomat, Minist Educ,Key Lab Ultrafine Mat, Shanghai 200237, Peoples R China;[2]East China Normal Univ, Sch Phys & Mat Sci, Phys Dept, Shanghai 200062, Peoples R China;[3]East China Normal Univ, Sch Phys & Mat Sci, Shanghai Key Lab Magnet Resonance, Shanghai 200062, Peoples R China;[4]East China Univ Sci & Technol, Key Lab Adv Mat, 130 Meilong Rd, Shanghai 200237, Peoples R China;[5]East China Univ Sci & Technol, Feringa Nobel Prize Scientist Joint Res Ctr, Sch Chem & Mol Engn, Inst Fine Chem, 130 Meilong Rd, Shanghai 200237, Peoples R China

年份：2022

卷号：15

期号：2

起止页码：1393

外文期刊名：NANO RESEARCH

收录：;EI(收录号：20213210731713);WOS:【SCI-EXPANDED(收录号:WOS:000681564700003)】；

基金：This work was financially supported by the International (Regional) Cooperation and Exchange Projects of the National Natural Science Foundation of China (No. 51920105003), the National Natural Science Funds for Distinguished Young Scholars (No. 51725201), the Innovation Program of Shanghai Municipal Education Commission (No. E00014), the National Natural Science Foundation of China (Nos. 51902105 and 22072045), the Shanghai Engineering Research Center of Hierarchical Nanomaterials (No. 18DZ2252400) and the Shanghai Sailing Program (No. 19YF1411600). The authors acknowledge the support by Shanghai Rising-star and Shuguang Programs (Nos. 20QA1402400 and 17SG30), and the Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning. Additional support was provided by the Feringa Nobel Prize Scientist Joint Research Center. The authors thank the Frontiers Science Center for Materiobiology and Dynamic Chemistry. The authors also thank the crew of the 1W1B beamline of Beijing Synchrotron Radiation Facility (BSRF) for their constructive assistance with the XAFS measurements and data analyses.

语种：英文

外文关键词：CO2 reduction reaction; gas diffusion electrolysis; multi-carbon products; molecular engineering; hydrophobicity

摘要：The electrocatalytic reduction of CO2 presents a promising strategy in addressing environmental and energy crisis. Significant progress has been achieved via CO2 gas diffusion electrolysis, to react at high selectivity and high rate. However, the gas diffusion layer (GDL) of the gas diffusion electrode (GDE) still suffers from low tolerance and limited active sites. Here, the hydrophobic 1-octadecanethiol molecular was functionalized over the Cu catalyst layer of the GDE, which simultaneously stabilizes the GDL and exposes abundant active solid-liquid-gas three-phase interfaces. The resultant GDE exhibits multi-carbon (C2+) product selectivity over faradaic efficiency (FE) of 70.0% in the range of 100 to 800 mA.cm(-2), with the peak FEC2+ of 85.2% at 800 mA.cm(-2). Notably, the strengthened GDE could continuously drive high-current electrolysis for more than 100 h without flooding. This work opens a new way to improve CO2 gas diffusion electrolysis via surface molecular engineering.