Atomically dispersed Pt on specific TiO2 facets for photocatalytic H2 evolution

This work successfully synthesized a Pt/TiO2 catalyst, where Pt atomically and selectively dispersed on the (101) facets of TiO2 crystals. [Display omitted] •Pt single atoms on TiO2 nanocrystal were synthesized by a facile method.•The Pt single atoms selectively dispersed on the (101) facets of TiO2...

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Bibliographic Details
Published in:Journal of catalysis 2017-09, Vol.353, p.250-255
Main Authors: Sui, Yulei, Liu, Subiao, Li, Tengfei, Liu, Qingxia, Jiang, Tao, Guo, Yufeng, Luo, Jing-Li
Format: Article
Language:English
Subjects:
facet
H2 Evolution
Pt/TiO2
Single-atom catalyst
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Summary:This work successfully synthesized a Pt/TiO2 catalyst, where Pt atomically and selectively dispersed on the (101) facets of TiO2 crystals. [Display omitted] •Pt single atoms on TiO2 nanocrystal were synthesized by a facile method.•The Pt single atoms selectively dispersed on the (101) facets of TiO2.•Pt1/TiO2 showed a high photocatalytic H2 evolution activity and recyclability. Sunlight-driven hydrogen production from water splitting, assisted with the commonly used Pt/TiO2 catalyst, is a promising way to store clean and renewable energy. However, the photocatalytic activity of Pt/TiO2 is limited owing to the agglomeration of Pt atoms. Herein, we successfully synthesized a Pt/TiO2 catalyst, where Pt is atomically and selectively dispersed on the (101) facets of nanosized TiO2 single crystals. A remarkably higher photocatalytic activity for H2 evolution together with a considerable stability was observed as compared to commonly used Pt/TiO2. This study demonstrates a promising way to achieve atomically dispersed highly-active catalyst for water splitting.
ISSN:0021-9517
1090-2694
DOI:10.1016/j.jcat.2017.07.024