https://scholars.lib.ntu.edu.tw/handle/123456789/503190
標題: | Ni-Nanocluster Modified Black TiO2 with Dual Active Sites for Selective Photocatalytic CO2 Reduction | 作者: | Billo, T. Fu, F.-Y. Raghunath, P. Shown, I. Chen, W.-F. Lien, H.-T. Shen, T.-H. Lee, J.-F. Chan, T.-S. Huang, K.-Y. CHIH-I WU Lin, M.C. Hwang, J.-S. Lee, C.-H. LI-CHYONG CHEN Chen, K.-H. |
關鍵字: | artificial photosynthesis; black TiO2; photocatalytic CO2 reduction; solar fuels | 公開日期: | 2018 | 出版社: | Wiley-VCH Verlag | 卷: | 14 | 期: | 2 | 起(迄)頁: | 1702928-1 - 1702928-11 | 來源出版物: | Small | 摘要: | One of the key challenges in artificial photosynthesis is to design a photocatalyst that can bind and activate the CO2 molecule with the smallest possible activation energy and produce selective hydrocarbon products. In this contribution, a combined experimental and computational study on Ni-nanocluster loaded black TiO2 (Ni/TiO2[Vo]) with built-in dual active sites for selective photocatalytic CO2 conversion is reported. The findings reveal that the synergistic effects of deliberately induced Ni nanoclusters and oxygen vacancies provide (1) energetically stable CO2 binding sites with the lowest activation energy (0.08 eV), (2) highly reactive sites, (3) a fast electron transfer pathway, and (4) enhanced light harvesting by lowering the bandgap. The Ni/TiO2[Vo] photocatalyst has demonstrated highly selective and enhanced photocatalytic activity of more than 18 times higher solar fuel production than the commercial TiO2 (P-25). An insight into the mechanisms of interfacial charge transfer and product formation is explored. © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim |
URI: | https://scholars.lib.ntu.edu.tw/handle/123456789/503190 https://www.scopus.com/inward/record.uri?eid=2-s2.0-85040313113&doi=10.1002%2fsmll.201702928&partnerID=40&md5=e0d3dc6fbb249c71c161ce5de4e646f7 |
ISSN: | 16136810 | DOI: | 10.1002/smll.201702928 | SDG/關鍵字: | Activation energy; Binding sites; Bins; Carbon dioxide; Charge transfer; Chemical activation; Nanoclusters; Nickel; Nickel compounds; Oxygen vacancies; Photocatalysts; Photosynthesis; Product design; Titanium compounds; Titanium dioxide; Artificial photosynthesis; black TiO2; CO2 reduction; Computational studies; Fast electron transfer; Interfacial charge transfer; Photocatalytic activities; Solar fuels; Phosphorus compounds |
顯示於: | 凝態科學研究中心 |
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