TY - JOUR
T1 - Co, Fe decorated N, S co-doped porous carbon enables high stability for the oxygen reduction reaction
AU - Huang, Qiulan
AU - Ren, Ruiqin
AU - Li, Jia
AU - Waqas, Muhammad
AU - Chen, Pan
AU - Liu, Xiaotian
AU - Huang, Dujuan
AU - Yang, Zhongyun
AU - Peng, Xinglan
AU - Chen, Du Hong
AU - Fan, Youjun
AU - Chen, Wei
N1 - Publisher Copyright:
© 2024 The Royal Society of Chemistry.
PY - 2024/1/3
Y1 - 2024/1/3
N2 - Fabricating highly competent and cost-effective catalysts is essential for promoting the sluggish kinetics associated with the oxygen reduction reaction (ORR). Herein, a new type of Fe, Co decorated porous carbon composite catalyst co-doped with S and N (FeCo-SNC) was prepared by a simple carbonization process. Interestingly, FeCo-SNC inherits not only the pore structure but also the large surface area of the ZIF-67 dodecahedron. Furthermore, the electronic configuration of the two catalytic centers in Fe-N-C and Co-NC was customized. On the basis of synergetic coordination between the two active sites, the fabricated FeCo-SNC showed prior stability for the ORR even after 10 000 cycles of cyclic voltammetry measurement, besides the great limiting current density of 5.99 mA cm−2 and high half potential of 0.856 V (vs. reversible hydrogen electrode), surpassing the commercially available Pt/C catalyst. Moreover, the primary active site of Fe-N-C was regulated, providing the highest catalytic activity for the ORR. This research offers a new perspective on enhancing carbon-based catalysts for the ORR without relying on precious metals and introduces a strategic method for controlling active centers.
AB - Fabricating highly competent and cost-effective catalysts is essential for promoting the sluggish kinetics associated with the oxygen reduction reaction (ORR). Herein, a new type of Fe, Co decorated porous carbon composite catalyst co-doped with S and N (FeCo-SNC) was prepared by a simple carbonization process. Interestingly, FeCo-SNC inherits not only the pore structure but also the large surface area of the ZIF-67 dodecahedron. Furthermore, the electronic configuration of the two catalytic centers in Fe-N-C and Co-NC was customized. On the basis of synergetic coordination between the two active sites, the fabricated FeCo-SNC showed prior stability for the ORR even after 10 000 cycles of cyclic voltammetry measurement, besides the great limiting current density of 5.99 mA cm−2 and high half potential of 0.856 V (vs. reversible hydrogen electrode), surpassing the commercially available Pt/C catalyst. Moreover, the primary active site of Fe-N-C was regulated, providing the highest catalytic activity for the ORR. This research offers a new perspective on enhancing carbon-based catalysts for the ORR without relying on precious metals and introduces a strategic method for controlling active centers.
UR - https://www.scopus.com/pages/publications/85182989283
U2 - 10.1039/d3cy01323e
DO - 10.1039/d3cy01323e
M3 - Article
AN - SCOPUS:85182989283
SN - 2044-4753
VL - 14
SP - 667
EP - 672
JO - Catalysis Science and Technology
JF - Catalysis Science and Technology
IS - 3
ER -