A metal–organic framework-derived bifunctional oxygen electrocatalyst

Bao Yu Xia, Ya Yan, Nan Li, Hao Bin Wu, Xiong Wen (David) Lou () and Xin Wang ()
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Bao Yu Xia: School of Chemical and Biomedical Engineering, Nanyang Technological University
Ya Yan: School of Chemical and Biomedical Engineering, Nanyang Technological University
Nan Li: School of Chemical and Biomedical Engineering, Nanyang Technological University
Hao Bin Wu: School of Chemical and Biomedical Engineering, Nanyang Technological University
Xiong Wen (David) Lou: School of Chemical and Biomedical Engineering, Nanyang Technological University
Xin Wang: School of Chemical and Biomedical Engineering, Nanyang Technological University

Nature Energy, 2016, vol. 1, issue 1, 1-8

Abstract: Abstract Oxygen electrocatalysis is of great importance for many energy storage and conversion technologies, including fuel cells, metal–air batteries and water electrolysis. Replacing noble metal-based electrocatalysts with highly efficient and inexpensive non-noble metal-based oxygen electrocatalysts is critical for the practical applications of these technologies. Here we report a general approach for the synthesis of hollow frameworks of nitrogen-doped carbon nanotubes derived from metal–organic frameworks, which exhibit higher electrocatalytic activity and stability for oxygen reduction and evolution than commercial Pt/C electrocatalysts. The remarkable electrochemical properties are mainly attributed to the synergistic effect from chemical compositions and the robust hollow structure composed of interconnected crystalline nitrogen-doped carbon nanotubes. The presented strategy for controlled design and synthesis of metal–organic framework-derived functional nanomaterials offers prospects in developing highly active electrocatalysts in electrochemical energy devices.

Date: 2016
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DOI: 10.1038/nenergy.2015.6

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