High efficient oxygen reduction performance of Fe/Fe3C nanoparticles in situ encapsulated in nitrogen-doped carbon via a novel microwave-assisted carbon bath methodOA附视频

被引：0

作者：

Mincong Liu ^{[1
]}

Xue Yin ^{[2
]}

Xuhong Guo ^{[1
,2
]}

Libing Hu ^{[1
]}

Huifang Yuan ^{[1
]}

Gang Wang ^{[1
]}

Fu Wang ^{[3
]}

Long Chen ^{[1
]}

Lili Zhang ^{[4
]}

Feng Yu ^{[1
]}

机构：

[1] Key Laboratory for Green Processing of Chemical Engineering of Xinjiang Bingtuan, School of Chemistry and Chemical Engineering, Shihezi University

[2] State Key Laboratory of Chemical Engineering, East China University of Science and Technology

[3] School of Environmental Science and Engineering, Shanghai Jiao Tong University

[4] Institute of Chemical and Engineering Sciences,Agency for Science, Technology and

来源：

Nano Materials Science | 2019年 / 02期

关键词：

D O I：

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学科分类号：

摘要：

Fe-based carbon materials are widely considered promising to replace Pt/C as next-generation electrocatalysts towards oxygen reduction reaction（ORR）. However, the preparation of Fe-based carbon materials is still carried out by conventional heating method（CHM）. Herein, a novel microwave-assisted carbon bath method（MW-CBM）was proposed, which only took 35 min to synthesize Fe/Fe3C nanoparticles encapsulated in N-doped carbon layers derived from Prussian blue（PB）. The catalyst contained large specific surface area and mesoporous structure,abundant Fe-Nx and C–N active sites, unique core-shell structure. Due to the synergistic effects of these features,the as-prepared Fe/Fe3C@NC-2 displayed outstanding ORR activity with onset potential of 0.98 VRHEand halfwave potential of 0.87 VRHE, which were more positive than 20 wt.% Pt/C(0.93 VRHE and 0.82 VRHE). Besides,Fe/Fe3C@NC-2 gave a better stability and methanol tolerance than Pt/C towards ORR in alkaline media, too.

引用

页数：6

共 18 条

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