Journal
CHEMISTRY-AN ASIAN JOURNAL
Volume 15, Issue 4, Pages 490-493Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/asia.201901684
Keywords
Boron-doped; Co3O4; hierarchical pores; metal-organic framework; oxygen evolution reaction
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Funding
- AIST
- Kobe University
- MEXT
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Fabricating a low-cost and highly efficient electrocatalyst is of importance for the development of renewable energy devices. In this work, we have synthesized an ultrafine cobalt oxide nanocatalyst (5-10 nm) doped with boron (BC/Co3O4) by using a metal-organic framework as a precursor, which exhibits an excellent catalytic activity for oxygen evolution reaction (OER). Owing to the improvement of accessible active sites by boron doping, the synthesized catalyst can reach a current density of 10 mA cm(-2) at 1.54 V with a low overpotential of 310 mV, superior than those of commercial RuO2 and N-doped C/Co3O4. This work provides a facile way to develop highly efficient catalysts for electrochemical reactions.
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