articleACS NanoFeb 14, 2017Closed access

NiO/CoN Porous Nanowires as Efficient Bifunctional Catalysts for Zn–Air Batteries

JYJie YinYLYuxuan LiFLFan LvQFQiaohui FanYZYongqing Zhao

State Key Laboratory of Applied Organic Chemistry · Lanzhou University · +3 more institutions

PubMed
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Abstract

The development of highly efficient bifunctional catalysts for oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) is crucial for improving the efficiency of the Zn–air battery. Herein, we report porous NiO/CoN interface nanowire arrays (PINWs) with both oxygen vacancies and a strongly interconnected nanointerface between NiO and CoN domains for promoting the electrocatalytic performance and stability for OER and ORR. Extended X-ray absorption fine structure spectroscopy, electron spin resonance, and high-resolution transmission electron microscopy investigations demonstrate that the decrease of the coordination number for cobalt, the enhanced oxygen vacancies on the NiO/CoN nanointerface, and…

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Authors

10

Topics & keywords

Topics
Keywords
  • Bifunctional
  • Nanowire
  • Materials science
  • Catalysis
  • Porosity
  • Non-blocking I/O
  • Nanotechnology
  • Chemical engineering
UN Sustainable Development Goals
  • Affordable and clean energy
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