期刊
ACS APPLIED MATERIALS & INTERFACES
卷 7, 期 32, 页码 18170-18178出版社
AMER CHEMICAL SOC
DOI: 10.1021/acsami.5b05834
关键词
in situ self-sacrificed template; Fe-N/G catalyst; synergistic effect; oxygen reduction reaction; fuel cell
资金
- National Natural Science Foundation of China [21273114]
- Natural Science Foundation of Jiangsu Province [BK2012791]
- Fundamental Research Funds for the Central Universities [NE2015003]
- Six Talent Peaks Program of Jiangsu Province [2013-XNY-010]
- Priority Academic Program Development of Jiangsu Higher Education Institution
- Program for Professor of Special Appointment (Eastern Scholar) at Shanghai Institutions of Higher Learning
To facilely prepare high-performance Fe-N/G oxygen reduction catalysts via a simple and controllable route from available and low-cost materials is still a challenge. Herein, we develop an in situ self-sacrificed template strategy to synthesize Fe-N/G catalysts from melamine, glucose, and FeSO4 center dot 7H(2)O. Fe/Fe3C@graphitic carbon nanocapsules are uniformly formed on the NG surface to create a highly opened and stable mesoporous framework structure. Furthermore, effectively doped N sites and high active Fe-N sites are synchronously constructed on such structures, leading to an enhanced synergistic effect for ORR and promising the Fe-N/G catalyst a similar catalytic activity and four-electron selectivity, but superior stability to commercial 30 wt % Pt/C catalysts in 0.1 M KOH solution under the same loading.
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