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In Situ Probing of CO2 Reduction on Cu-Phthalocyanine-Derived CuxO Complex

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Title
In Situ Probing of CO<sub>2</sub> Reduction on Cu-Phthalocyanine-Derived Cu<sub>x</sub>O Complex
Author(s)
Yongchan Jeong; Yongman Kim; Young Jae Kim; Jeong Young Park
Publication Date
2024-01
Journal
ADVANCED SCIENCE, v.11, no.4
Publisher
WILEY
Abstract
An in situ measurement of a CO2 reduction reaction (CO2RR) in Cu-phthalocyanine (CuPC) molecules adsorbed on an Au(111) surface is performed using electrochemical scanning tunneling microscopy. One intriguing phenomenon monitored in situ during CO2RR is that a well-ordered CuPC adlayer is formed into an unsuspected nanocluster via molecular restructuring. At an electrode potential of -0.7 V versus Ag/AgCl, the Au surface is covered mainly with the clusters, showing restructuring-induced CO2RR catalytic activity. Using a measurement of X-ray photoelectron spectroscopy, it is revealed that the nanocluster represents a Cu complex with its formation mechanism. This work provides an in situ observation of the restructuring of the electrocatalyst to understand the surface-reactive correlations and suggests the CO2RR catalyst works at a relatively low potential using the CuPC-derived Cu nanoclusters as active species.
URI
https://pr.ibs.re.kr/handle/8788114/14737
DOI
10.1002/advs.202304735
ISSN
2198-3844
Appears in Collections:
Center for Nanomaterials and Chemical Reactions(나노물질 및 화학반응 연구단) > 1. Journal Papers (저널논문)
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