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Please use this identifier to cite or link to this item: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47031

Title: Ni-nanocluster modified black TiO2 with dual active sites for selective photocatalytic CO2 reduction
Authors: Billo T
Fu FY
Raghunath P
Shown I
Chen WF
Lien HT
Shen TH
Lee JF
Chan TS
Huang KY
Wu CI
Lin MC
Hwang JS
Lee CH
Chen LC
Chen KH
Contributors: 國立臺灣海洋大學:光電科學研究所
Keywords: artificial photosynthesis
black TiO2
photocatalytic CO2 reduction
solar fuels
Date: 2017-11
Issue Date: 2018-06-28T03:38:50Z
Publisher: Small
Abstract: Abstract: 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.
Relation: 14(2)
URI: http://ntour.ntou.edu.tw:8080/ir/handle/987654321/47031
Appears in Collections:[光電科學研究所] 期刊論文

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