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Electrochemically Driven Formation of Sponge‐Like Porous Silver Nanocubes Toward Efficient CO 2 Electroreduction to CO
Author(s) -
Fan Tingting,
Wu Qiuling,
Yang Zhou,
Song Yipeng,
Zhang Jiguang,
Huang Pingping,
Chen Zhou,
Dong Yunyun,
Fang Weiping,
Yi Xiaodong
Publication year - 2020
Publication title -
chemsuschem
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 2.412
H-Index - 157
eISSN - 1864-564X
pISSN - 1864-5631
DOI - 10.1002/cssc.201903558
Subject(s) - electrochemistry , faraday efficiency , materials science , chemical engineering , porosity , current density , inorganic chemistry , electrocatalyst , electrode , nanotechnology , chemistry , composite material , physics , quantum mechanics , engineering
Electrochemical conversion of CO 2 into valuable products by utilizing renewable electricity is a thriving research field. For electrochemical reduction of CO 2 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 CO 2 reduction reaction (CO 2 RR), as well as reducing impedance to accelerate the CO 2 RR kinetics. This distinctive organization affords SPC‐Ag with outstanding electrocatalytic performance for CO 2 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.