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Abstract：
Nitrogen-doped carbon (NC) materials have been proposed as next-generation oxygen reduction reaction (ORR) catalysts to significantly improve scalability and reduce costs, but these alternatives usually exhibit low activity and/or gradual deactivation during use. Here, we develop new 2D sandwich-like zeolitic imidazolate framework (ZIF) derived graphene-based nitrogen-doped porous carbon sheets (GNPCSs) obtained by in situ growing ZIF on graphene oxide (GO). Compared to commercial Pt/C catalyst, the GNPCSs show comparable onset potential, higher current density, and especially an excellent tolerance to methanol and superior durability in the ORR. Those properties might be attributed to a synergistic effect between NC and graphene with regard to structure and composition. Furthermore, higher open-circuit voltage and power density are obtained in direct methanol fuel cells.
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ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
ISSN： 1433-7851
Year： 2014
Issue： 51
Volume： 53
Page： 14235-14239
1 6 . 6 0 0
JCR@2022
ESI Discipline： CHEMISTRY;
ESI HC Threshold：258
JCR Journal Grade：1
CAS Journal Grade：1
Cited Count：
WoS CC Cited Count： 858
SCOPUS Cited Count： 879
ESI Highly Cited Papers on the List： 39 Unfold All
WanFang Cited Count：
Chinese Cited Count：
30 Days PV： 8
Affiliated Colleges：
