期刊
NANOTECHNOLOGY
卷 32, 期 20, 页码 -出版社
IOP Publishing Ltd
DOI: 10.1088/1361-6528/abe32f
关键词
Co; N-codoped carbon; carbon nanotubes; oxygen reduction reaction; mesoporous structure; ZIF-8
资金
- National Natural Science Foundation of China [21675147, 21974097]
- Education Department of Guangdong Province [2020KSYS004, 2020ZDZX2015]
- Jilin Provincial Science and Technology Development Program [20190201242JC]
- Science and Technology Bureau of Jiangmen [2019030102360012639]
Designing Co,N-codoped carbon nanocomposites can enhance the efficiency and stability of oxygen reduction reaction, thanks to the increased active sites exposure and improved conductivity and mass transport.
The design of highly efficient and stable electrocatalysts for oxygen reduction reaction (ORR) is still a great challenge. Herein, we prepared Co,N-codoped carbon nanocomposites (Co@NC-ZM) with entangled carbon nanotubes. The large Brunauer-Emmett-Teller surface area (604.7 m(2) g(-1)), rich mesoporous feature, Co,N doping and synergetic effect between various species of Co@NC-ZM can expose more active sites and facilitate conductivity and mass transport. Benefiting from the above unique advantages, Co@NC-ZM exhibits excellent ORR performance with more positive onset potential (0.96 V) and half-wave potential (0.83 V) than those of commercial Pt/C (0.96 and 0.81 V, correspondingly). This work provides a new strategy for further exploring efficient non-precious-metal-based catalysts for ORR.
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