Unique Electronic Structure in a Porous Ga-In Bimetallic Oxide Nano-Photocatalyst with Atomically Thin Pore Walls

Hui Chen, Guangtao Yu, Guo Dong Li, Tengfeng Xie, Yuanhui Sun, Jingwei Liu, Hui Li, Xuri Huang, Dejun Wang, Tewodros Asefa, Wei Chen, Xiaoxin Zou

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A facile synthetic route is presented that produces a porous Ga-In bimetallic oxide nanophotocatalyst with atomically thin pore walls. The material has an unprecedented electronic structure arising from its ultrathin walls. The bottom of the conduction band and the top of the valence band of the material are distributed on two opposite surfaces separated with a small electrostatic potential difference. This not only shortens the distance by which the photogenerated charges travel from the sites where they are generated to the sites where they catalyze the reactions, but also facilitates charge separations in the material. The porous structure within the walls results in a large density of exposed surface reactive/catalytic sites. Because of these optimized electronic and surface structures, the material exhibits superior photocatalytic activity toward the hydrogen evolution reaction (HER).

Original languageEnglish
Pages (from-to)11442-11446
Number of pages5
JournalAngewandte Chemie - International Edition
Volume55
Issue number38
DOIs
Publication statusPublished - 2016

Keywords

  • bimetallic oxides
  • electronic structure
  • hydrogen evolution reaction
  • photocatalysis
  • porous structure

ASJC Scopus subject areas

  • Catalysis
  • Chemistry(all)

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