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Pyridinium‐Facilitated CO 2 Electroreduction on Pt Nanowire: Enhanced Electrochemical Performance in CO 2 Conversion
Author(s) -
Rabiee Arash,
Nematollahi Davood
Publication year - 2018
Publication title -
environmental progress and sustainable energy
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.495
H-Index - 66
eISSN - 1944-7450
pISSN - 1944-7442
DOI - 10.1002/ep.12975
Subject(s) - formic acid , electrochemistry , pyridinium , methanol , catalysis , nanowire , aqueous solution , electrocatalyst , materials science , hydride , inorganic chemistry , selectivity , electrode , chemistry , nanotechnology , chromatography , organic chemistry , metal , metallurgy
Electrochemical reduction of CO 2 to the value‐added fuels is a promising way to mitigate global warming. However, conversion of CO 2 to methanol or formic acid is very challenging due to the poor performance of the catalysts employed for the reduction of CO 2 . In this work, higher performance toward CO 2 reduction was obtained when Pt nanowire (Pt NW) assembly is utilized as a co‐catalyst in the electrochemical reduction of CO 2 activated by pyridinium (PyrH + ). It is found that the overall Faraday efficiency for CO 2 ‐derived products is 55%. The methanol and formic acid were the only detected compounds in aqueous solution using high performance liquid chromatography. Results of this research showed that the higher hydride accumulation on Pt NW and its morphological advancements are two major factors for superior electrochemical performance in CO 2 electroreduction. © 2018 American Institute of Chemical Engineers Environ Prog, 38: 112–117, 2019