articleNature CommunicationsApr 28, 2022GOLD OA

Efficient and stable noble-metal-free catalyst for acidic water oxidation

Nankai University · Unité Matériaux et Transformations · +10 more institutions

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Abstract

Abstract Developing non-noble catalysts with superior activity and durability for oxygen evolution reaction (OER) in acidic media is paramount for hydrogen production from water. Still, challenges remain due to the inadequate activity and stability of the OER catalyst. Here, we report a cost-effective and stable manganese oxybromide (Mn 7.5 O 10 Br 3 ) catalyst exhibiting an excellent OER activity in acidic electrolytes, with an overpotential of as low as 295 ± 5 mV at a current density of 10 mA cm −2 . Mn 7.5 O 10 Br 3 maintains good stability under operating conditions for at least 500 h. In situ Raman spectroscopy, X ray absorption near edge spectroscopy, and density functional theory calculations confirm…

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270
total citations
FWCI
11.85
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100%
References
60
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Authors

17

Topics & keywords

Keywords
  • Overpotential
  • Catalysis
  • Noble metal
  • Water splitting
  • Oxygen evolution
  • Electrolyte
  • Inorganic chemistry
  • Materials science
UN Sustainable Development Goals
  • Clean water and sanitation
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