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| Type |
Oral Presentation |
| Area |
Oral Presentation of Young Scholars in Electrochemistry |
| Room No. |
406호 |
| Time |
THU 09:15-: |
| Code |
ELEC.O-2 |
| Subject |
Electrochemical CO2 conversion in aqueous solution via Metal Cluster
|
| Authors |
이용진, 이동일*
연세대학교 화학과, Korea
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| Abstract |
Much effort has been made to convert carbon dioxide into a useful substance to prevent the greenhouse effect of carbon dioxide, a by-product of fossil fuels. However, the conversion of carbon dioxide requires a lot of energy input, so it is important to develop suitable catalysts, and catalysts using metal are being actively developed. Our group used a metal cluster consisting of 25 gold atoms as a catalyst, and improved catalyst selectivity and reactivity in the conversion of carbon dioxide. In this experiment, a glassy carbon electrode carrying gold nanoclusters was used as an electrode for electrochemical conversion, and carbon dioxide was converted into carbon monoxide and hydrogen on an aqueous solution(pH 7), which was analyzed using a gas chromatographic system. Faradaic efficiency was observed at 90% (overvoltage : 0.4 V) and Jco(Partial Current) value was 13 mA/cm2(overvoltage : 0.6 V). In the same method, the conversion experiment of carbon dioxide was carried out using Au25 based PtAu24. Compared with Au25, single Pt atom doped PtAu24 are selective for H2. The study described here has more significance towards the understanding of CO2 reduction reaction on metal nanoclusters and their alloys. |
| E-mail |
sg828fer@naver.com |
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119th General Meeting of the KCS