articleJournal of the American Chemical SocietyFeb 25, 2025Closed access

Cobalt-Doped Ru@RuO 2 Core–Shell Heterostructure for Efficient Acidic Water Oxidation in Low-Ru-Loading Proton Exchange Membrane Water Electrolyzers

JCJinghao ChenYMYirui MaCCCheng ChenTHTao HuangTHTao Huang

University of Science and Technology of China · Nano Carbon (Poland)

PubMed
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Abstract

Proton exchange membrane water electrolysis (PEMWE) is a highly promising hydrogen production technology for enabling a sustainable energy supply. Herein, we synthesize a single-atom Co-doped core–shell heterostructured Ru@RuO2 (Co-Ru@RuO2) catalyst via a combination of ultrafast pulse-heating and calcination methods as an iridium (Ir)-free and durable oxygen evolution reaction (OER) catalyst in acidic conditions. Co-Ru@RuO2 exhibits a low overpotential of 203 mV and excellent stability over a 400 h durability test at 10 mA cm–2. When implemented in industrial PEMWE devices, a current density of 1 A cm–2 is achieved with only 1.58 V under an extremely low catalyst loading of 0.34 mgRu cm–2, which is decreased…

Citation impact

140
total citations
FWCI
39.14
Percentile
100%
References
42
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Authors

15

Topics & keywords

Topics
Keywords
  • Chemistry
  • Cobalt
  • Doping
  • Heterojunction
  • Proton
  • Inorganic chemistry
  • Proton exchange membrane fuel cell
  • Membrane
UN Sustainable Development Goals
  • Clean water and sanitation
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