Chitosan/Nonahydrate Gel Derived Fe-N-Doped Porous Carbon Sheet as High-Efficient ORR Electrocatalyst

Authors

Fan-Lu MENG, Key Laboratory of Automobile Materials, Ministry of Education and College of Materials Science and Engineering, Jilin University, Changchun 130012, China;State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130012, China);
Xin-Bo ZHANG, State Key Laboratory of Rare Earth Resource Utilization, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun 130012, China);
Jun-Min YAN, Key Laboratory of Automobile Materials, Ministry of Education and College of Materials Science and Engineering, Jilin University, Changchun 130012, China;Follow

Corresponding Author

Jun-Min YAN(junminyan@jlu.edu.cn)

Abstract

The chitosan/nonahydrate gel was used as a precursor to realize the uniform mixture of N-polymer and metal salt. After lyophilization treatment, the gel went through heat treatment and acid etch. Accordingly, the Fe-N-doped porous carbon sheet with homogenous composition and microstructure was prepared. Compared with the commercial Pt/C catalyst, the Fe-N-doped porous carbon sheet exhibited more positive onset potential and half-wave potential, higher current density, and especially, excellent durability. The power density of 318 mW·cm^-2 was obtained in alkaline fuel cell with the Fe-N-doped porous carbon sheet as a cathode catalyst, which is higher than 267 mW·cm^-2 with the Pt/C as a cathode catalyst. The improved cell perforence with the Fe-N-doped porous carbon sheet might be contributed to the atomicaly dispersed iron in chitosan, which results in the homogenous dispersion of Fe-N-C active site, high specific surface area and pore size distribution.

Graphical Abstract

Keywords

Fe-N-doped porous carbon sheet, oxygen reduction reaction, gel, porous structure

DOI Link

https://doi.org/10.13208/j.electrochem.151231

Publication Date

2016-12-28

Online Available Date

2016-04-05

Revised Date

2016-03-15

Received Date

2015-12-30

Recommended Citation

Fan-Lu MENG, Xin-Bo ZHANG, Jun-Min YAN. Chitosan/Nonahydrate Gel Derived Fe-N-Doped Porous Carbon Sheet as High-Efficient ORR Electrocatalyst[J]. Journal of Electrochemistry, 2016 , 22(6): 624-630.
DOI: 10.13208/j.electrochem.151231
Available at: https://jelectrochem.xmu.edu.cn/journal/vol22/iss6/11