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|
| Type |
Poster Presentation |
| Area |
Inorganic Chemistry |
| Room No. |
Event Hall |
| Time |
4월 19일 (목요일) 11:00~12:30 |
| Code |
INOR.P-97 |
| Subject |
Colloidal ZnO-Cu2O hybrid nanocatalysts for selective photocatalytic CO2 conversion into methane by water |
| Authors |
Jinmo Kim, Hyunjoon Song*
Department of Chemistry, Korea Advanced Institute of Science and Technology, Korea
|
| Abstract |
Developing catalytic systems with high activity and selectivity is a fundamental issue for photochemical CO2 conversion. Herein we synthesize ZnO-Cu2O hybrid nanoparticles as colloidal forms with well-defined morphology. The ZnO-Cu2O nanoparticles behave as highly active photocatalysts for direct CO2 conversion in an aqueous medium, with the selectivity of CH4 production approaching > 99%, the high activity (1080 μmol/gcath) and a quantum yield (1.5%). These high performances of the ZnO-Cu2O hybrid catalysts are attributed to an excellent band alignment of the ZnO and Cu2O domains and their defect-less junctions, which allow to suppress defect-induced charge recombination and enhance effective electron transfer between the domains. |
| E-mail |
kimjm0468@kaist.ac.kr |
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121st General Meeting of the KCS