文献类型：期刊文献

英文题名：SDS-modified Nanoporous Silver as an Efficient Electrocatalyst for Selectively Converting CO2 to CO in Aqueous Solution

作者：Shi, Lei[1];Zhang, Yuning[1];Han, Xiaofei[1];Niu, Dongfang[1];Sun, Jinlong[1];Yang, Jenny Y.[2];Hu, Shuozhen[1];Zhang, Xinsheng[1]

机构：[1]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai 200237, Peoples R China;[2]Univ Calif Irvine, Dept Chem, Irvine, CA 92697 USA

年份：2019

卷号：37

期号：4

起止页码：337

外文期刊名：CHINESE JOURNAL OF CHEMISTRY

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000461421100004)】；

基金：This work was supported by the National Key Research and Development Program of China (Grant Nos. 2017YFB0307502 and 2017YFB0307500), the 111 Project of China (No. B08021), the Collaborative Innovation Centre for Petrochemical New Materials, Anqing, Anhui, P.R. China (No. 246011), and the Shanghai Pujiang Program (No. 18PJ1402000).

语种：英文

摘要：Selectively electrochemical conversion of CO2 into organic fuel using renewable electricity is one of the most sought-after processes. In this paper, we report the electrochemical reduction of CO2 (CO2RR) on the nanoporous Ag electrodes made of compacted Ag nanoparticles (AgNPs), which were prepared by one-step reduction in the water phase with or without the surfactant sodium dodecyl sulfate (SDS). The scanning electron microscope (SEM) characterizations show that the compacted Ag electrodes have the nanoporous morphology formed by stacking AgNPs. Compared with the nanoporous Ag electrode without SDS modification (C-AgNPs), the SDS-modified AgNPs electrode (C-AgNPs-SDS) is highly effective in improving selective CO production in a wide range of potentials (-0.69 V - -1.19 V, vs. RHE), with a Faradaic efficiency of 92.2% and a current density of -8.23 mA center dot cm(-2) for CO production at -0.79 V (vs. RHE). C-AgNPs-SDS is also catalytically stable with only less than 7% deactivation after 8 h of continuous electrolysis.