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|
| Type |
Poster Presentation |
| Area |
Environmental Energy |
| Room No. |
Exhibition Hall 2 |
| Time |
4월 18일 (목요일) 11:00~12:30 |
| Code |
ENVR.P-502 |
| Subject |
Photoelectrochemical CO2 Reduction to Formaldehyde and Acetaldehyde |
| Authors |
Amol Pawar, Young soo Kang1,*
Chemistry, Sogang University, Korea
1Department of Chemistry, Sogang University, Korea
|
| Abstract |
Artificial photosynthesis is a most important topic in recent years. It shows the best prominent way to produce clean, efficient and renewable energy. Since last several years many photocatalytic materials have been introduced in artificial photosynthesis [1-3]. Artificial photosynthesis divides into two parts such as water oxidation and CO2 reduction. Water oxidation is light driven reaction and CO2 reduction is a dark reaction, so photocatalytic material can be work as a photoanode and cathode electrode can be useful for CO2 capture, activation as well as multi electron process part. In this work, Ca/Fe doped TiO2 as a photoanode has been prepared by simple co-precipitation method with high temperature calcination. Cathode electrodes have been prepared by various combinations of rGO(reduced graphene oxide)/PVP(poly(4-vinyl)pyridine)/Nafion on Cu foil. The major product of formaldehyde (475 M) and acetaldehyde (480 mM) were observed in case of Cu/rGO and Cu/rGO/PVP/Nafion cathode electrode respectively, with applied bias potential 0.68 V vs RHE. In this work, detail mechanism for CO2 reduction has been studied with careful attention of CO2 capture, activation and multi electron shuttling. |
| E-mail |
amolphysics@gmail.com |
|
123rd General Meeting of the KCS