articleACS CatalysisFeb 19, 2024Closed access

Strain-Engineered Ru-NiCr LDH Nanosheets Boosting Alkaline Hydrogen Evolution Reaction

JYJunhao YangSYShengxiong YangLALulu AnJZJ. ZhuJXJunwu Xiao

Huazhong University of Science and Technology

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Abstract

Ruthenium (Ru) has been considered as a promising candidate for alkaline hydrogen evolution reaction (HER); however, the hydrogen adsorption on Ru needs to be optimized to enhance the electrocatalytic activity. Strain engineering is an effective method to regulate the hydrogen adsorption, while the systematic study of the strain effect over hydrogen adsorption of Ru remains a challenge. Herein, Ru-incorporated nickel–chromium-layered double hydroxide (LDH) nanosheets with different levels of compressive strain are constructed to tune the hydrogen adsorption. The strain-engineered Ru-NiCr LDH exhibits a low overpotential of 30 mV at 100 mA cm–2 and good stability over 10,000 potential cycles for HER. When the…

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130
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Authors

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Topics & keywords

Topics
Keywords
  • Overpotential
  • Adsorption
  • Hydrogen
  • Catalysis
  • Hydrogen production
  • Materials science
  • Ruthenium
  • Inorganic chemistry
UN Sustainable Development Goals
  • Clean water and sanitation
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