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Reversed Charge Transfer and Enhanced Hydrogen Spillover in Platinum Nanoclusters Anchored on Titanium Oxide with Rich Oxygen Vacancies Boost Hydrogen Evolution Reaction

Wei, Zhen‐Wei, Wang, Hong‐Juan, Zhang, Chao, Xu, Kun, Lu, Xiu‐Li, Lu, Tong‐Bu·2021·Angewandte Chemie International Edition

Abstract

The catalytic activity of metal clusters is closely related with the support; however, knowledge on the influence of the support on the catalytic activity is scarce. We demonstrate that Pt nanoclusters (NCs) anchored on porous TiO 2 nanosheets with rich oxygen vacancies (V O‐rich Pt/TiO 2) and deficient oxygen vacancies (V O‐deficient Pt/TiO 2), display significantly different catalytic activity for the hydrogen evolution reaction (HER), in which V O‐rich Pt/TiO 2 shows a mass activity of 45.28 A mg Pt−1 at −0.1 V vs. RHE, which is 16.7 and 58.8 times higher than those of V O‐deficient Pt/TiO 2 and commercial Pt/C, respectively. DFT calculations and in situ Raman spectra suggest that porous TiO 2 with rich oxygen vacancies can simultaneously achieve reversed charge transfer (electrons transfer from TiO 2 to Pt NCs) and enhanced hydrogen spillover from Pt NCs to the TiO 2 support, which leads to electron‐rich Pt NCs being amenable to proton reduction of absorbed H*, as well as the acceleration of hydrogen desorption at Pt catalytic sites—both promoting the HER. Our work provides a new strategy for rational design of highly efficient HER catalysts.

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Metadata

Authors
Wei, Z., Wang, H., Zhang, C., Xu, K., Lu, X., & Lu, T.
Venue
Angewandte Chemie International Edition
Publisher
Wiley
Published
2021-06-21
Volume
60
Issue
30
Pages
16622-16627
ISSN
  • 1433-7851 (ISSN-L)
  • 1521-3773
OpenAlex
W3162711104
Cited by
421
References
12
FWCI
11.62
Type
journal article
Language
en
Open access
closed
Funders
Innovative Research Group Project of the National Natural Science Foundation of China (21790052 and 21331007)

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CoChat. (2026). Citation check: Reversed Charge Transfer and Enhanced Hydrogen Spillover in Platinum Nanoclusters Anchored on Titanium Oxide with Rich Oxygen Vacancies Boost Hydrogen Evolution Reaction. https://app.cochat.ai/papers/10.1002/anie.202104856
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Wei, Z., Wang, H., Zhang, C., Xu, K., Lu, X., & Lu, T. (2021). Reversed Charge Transfer and Enhanced Hydrogen Spillover in Platinum Nanoclusters Anchored on Titanium Oxide with Rich Oxygen Vacancies Boost Hydrogen Evolution Reaction. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.202104856

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