Atomically Strained Metal Sites for Highly Efficient and Selective Photooxidation

Xinyuan Li, Zechao Zhuang, Jing Chai, Ruiwen Shao, Junhui Wang, Zhuoli Jiang, Shuwen Zhu, Hongfei Gu, Jian Zhang, Zhentao Ma, Peng Zhang, Wensheng Yan, Lirong Zheng, Kaifeng Wu, Xusheng Zheng, Liang Zhang*, Jiatao Zhang, Dingsheng Wang, Wenxing Chen*, Yadong Li*

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

32 Citations (Scopus)

Abstract

Strain engineering is an attractive strategy for improving the intrinsic catalytic performance of heterogeneous catalysts. Manipulating strain on the short-range atomic scale to the local structure of the catalytic sites is still challenging. Herein, we successfully achieved atomic strain modulation on ultrathin layered vanadium oxide nanoribbons by an ingenious intercalation chemistry method. When trace sodium cations were introduced between the V2O5 layers (Na+-V2O5), the V-O bonds were stretched by the atomically strained vanadium sites, redistributing the local charges. The Na+-V2O5 demonstrated excellent photooxidation performance, which was approximately 12 and 14 times higher than that of pristine V2O5 and VO2, respectively. Complementary spectroscopy analysis and theoretical calculations confirmed that the atomically strained Na+-V2O5 had a high surficial charge density, improving the activation of oxygen molecules and contributing to the excellent photocatalytic property. This work provides a new approach for the rational design of strain-equipped catalysts for selective photooxidation reactions.

Original languageEnglish
Pages (from-to)2905-2914
Number of pages10
JournalNano Letters
Volume23
Issue number7
DOIs
Publication statusPublished - 12 Apr 2023

Keywords

  • Activation of Oxygen Molecules
  • Atomically Strained Sites
  • Photocatalytic Oxidation
  • Vanadium Oxide

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