Electrochemically Driven Formation of Sponge‐Like Porous Silver Nanocubes Toward Efficient CO2 Electroreduction to CO. Issue 10 (31st March 2020)

• Record Type: Journal Article
• Authors: Fan, Tingting; Wu, Qiuling; Yang, Zhou; Song, Yipeng; Zhang, Jiguang; Huang, Pingping; Chen, Zhou; Dong, Yunyun; Fang, Weiping; Yi, Xiaodong
• Is Part Of: ChemSusChem. Volume 13:Issue 10(2020)
• Page Start: 2677
• Page End: 2683
• Publication Date: 2020-03-31
• Subjects: CO2 reduction -- electrocatalysis -- in situ structural transformation -- porous Ag nanocubes -- porous organization; Green chemistry -- Periodicals; Sustainable engineering -- Periodicals; Chemistry -- Periodicals; Chemical engineering -- Periodicals; 660
• DOI: 10.1002/cssc.201903558
• Languages: English
• ISSNs: 1864-5631

Abstract

Abstract: Electrochemical conversion of CO2 into valuable products by utilizing renewable electricity is a thriving research field. For electrochemical reduction of CO2 to CO, uniform sponge‐like porous Ag nanocubes (SPC‐Ag) integrated on carbon paper are prepared by using an electrochemically driven method. The SPC‐Ag has a 3 D porous structure and a large specific surface area, which affords abundant active sites for the CO2 reduction reaction (CO2 RR), as well as reducing impedance to accelerate the CO2 RR kinetics. This distinctive organization affords SPC‐Ag with outstanding electrocatalytic performance for CO2 reduction to CO. High faradaic efficiency (>90 %) and large partial current density for CO with excellent durability are observed in a wide potential window, with a maximum value of 93 % at −0.9 V versus reversible hydrogen electrode. Abstract : Go cubes go ! Uniform sponge‐like porous Ag nanocubes with abundant active sites, a 3 D porous structure, and excellent wettability simultaneously intensify the adsorption and activation of CO2, facilitate electron transfer, and improve the efficiency of the CO2 reduction reaction.