articleAdvanced MaterialsJun 12, 2024Closed access

Lattice Strain with Stabilized Oxygen Vacancies Boosts Ceria for Robust Alkaline Hydrogen Evolution Outperforming Benchmark Pt

XLXiaojing LiuSWShuaichong WeiSCShuyi CaoYZYongguang ZhangWXWei Xue

Hebei University of Technology · Dalian Institute of Chemical Physics · +1 more institution

PubMed
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Abstract

Abstract Earth‐abundant metal oxides are usually considered as stable but catalytically inert toward hydrogen evolution reaction (HER) due to their unfavorable hydrogen intermediate adsorption performance. Herein, a heavy rare earth (Y) and transition metal (Co) dual‐doping induced lattice strain and oxygen vacancy stabilization strategy is proposed to boost CeO 2 toward robust alkaline HER. The induced lattice compression and increased oxygen vacancy (O v ) concentration in CeO 2 synergistically improve the water dissociation on O v sites and sequential hydrogen adsorption at activated O v ‐neighboring sites, leading to significantly enhanced HER kinetics. Meanwhile, Y doping offers stabilization effect on O…

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112
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100%
References
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8

Topics & keywords

Topics
Keywords
  • Materials science
  • Oxygen
  • Hydrogen
  • Lattice (music)
  • Benchmark (surveying)
  • Chemical engineering
  • Inorganic chemistry
  • Organic chemistry
UN Sustainable Development Goals
  • Clean water and sanitation
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