articleAdvanced MaterialsApr 8, 2023Closed access

Supported Ruthenium Single‐Atom and Clustered Catalysts Outperform Benchmark Pt for Alkaline Hydrogen Evolution

YZYanping ZhuKFKe FanCHChia‐Shuo HsuGCGao ChenCCChangsheng Chen

Hong Kong Polytechnic University · National Taiwan University · +2 more institutions

PubMed
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Abstract

Abstract Guaranteeing satisfactory catalytic behavior while ensuring high metal utilization has become the problem that needs to be addressed when designing noble‐metal‐based catalysts for electrochemical reactions. Here, well‐dispersed ruthenium (Ru) based clusters with adjacent Ru single atoms (SAs) on layered sodium cobalt oxide (Ru/NC) are demonstrated as a superb electrocatalyst for alkaline HER. The Ru/NC catalyst demonstrates an activity increase by a factor of two relative to the commercial Pt/C. Operando characterizations in conjunction with density functional theory (DFT) simulations uncover the origin of the superior activity and establish a structure–performance relationship, that is, under HER…

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Topics & keywords

Topics
Keywords
  • Ruthenium
  • Materials science
  • Catalysis
  • Benchmark (surveying)
  • Atom (system on chip)
  • Hydrogen
  • Hydrogen atom
  • Chemical engineering
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