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권영국

Kwon, Youngkook
Electrochemistry Lab for Energy and Environment
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dc.citation.conferencePlace US -
dc.citation.title PRiME 2020 -
dc.contributor.author Kwon, Youngkook -
dc.date.accessioned 2024-01-31T22:38:10Z -
dc.date.available 2024-01-31T22:38:10Z -
dc.date.created 2021-01-18 -
dc.date.issued 2020-10-08 -
dc.description.abstract The efficient electrochemical conversion of CO2 to fuels or stock chemicals with high-energy density would be a major step forward in the introduction of a carbon neutral energy cycle. Especially, understanding the role of electrocatalysts, supports, and electrolytes that can efficiently reduce CO2 to fuels with high selectivity is a subject of significant interest.

One of the achievements in electrochemical CO2 reduction is the clarification of the catalysts toward two-electron involved products such as CO and formate. For instance, CO is selectively generated on Au, Ag, and single-atom catalysts and formate has been selective on Hg, Pb, Sn or alloy catalysts. Interestingly, from our recent work, CO/formate ratio can be selectively controlled on formate selective catalyst by tuning the interfacial electric field.[1] On copper catalyst, the selection of alkali cations has direct influence on activity and product selectivity; increasing the size of mono-valent cations can increase the activity and selectivity toward C-C coupled products by modulating the interaction energy between adsorbates and electric fields at the interface.[2] In addition, copper catalyst with a specific atomic-scale gap accelerates the reaction kinetics and selectivity to C2+ products.[3] Therefore, understanding the roles of catalyst, support and electrolyte offers the design of efficient, yet cheap electrochemical CO2 reduction systems.
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dc.identifier.bibliographicCitation PRiME 2020 -
dc.identifier.uri https://scholarworks.unist.ac.kr/handle/201301/78142 -
dc.identifier.url https://iopscience.iop.org/article/10.1149/MA2020-02613135mtgabs -
dc.language 영어 -
dc.publisher Electrochemical Society, Korean Electrochemical Society, Electrochemical Society of Japan -
dc.title Electric-Field driven Selective Electrocatalytic CO2 Conversion -
dc.type Conference Paper -
dc.date.conferenceDate 2020-10-04 -

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