Effect of halides on nanoporous Zn-based catalysts for highly e?cient electroreduction of CO2 to CO

Title
Effect of halides on nanoporous Zn-based catalysts for highly e?cient electroreduction of CO2 to CO
Authors
민병권황윤정오형석원다혜지신천당 리 트리 뉴옌
Keywords
Halide ion; Zn-based catalyst; CO2 reduction reaction; CO production; Electrochemical Surface Area
Issue Date
2018-08
Publisher
Catalysis communications
Citation
VOL 114-113
Abstract
The eff ects of halide ions (F− ,Cl− ,Br− ,orI− ) on nanoporous Zn-based electrocatalysts were assessed. All catalysts in the presence of halides exhibited high electrocatalytic performances of CO2 reduction reaction(CO2RR) and effi cient suppression of hydrogen evolution reaction (HER) with a maximum Faradaic effi ciency ofup to 97%. The increasing adsorption strength from F− to I− is proposed to form more porous structures andhigher oxidized Zn species, thus facilitating the protonation of CO2and stabilizing the adsorbed intermediates induced by charge donation from the adsorbed halides on Zn surface to CO2, enhance CO2RR and simultaneously suppress HER.
URI
http://pubs.kist.re.kr/handle/201004/67829
ISSN
1566-7367
Appears in Collections:
KIST Publication > Article
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