Direct synthesis of nitrogen and phosphorus co-doped hierarchical porous carbon networks with biological materials as efficient electrocatalysts for oxygen reduction reaction

作者：Mao, Xinxin; Cao, Zhaoxia^*; Yin, Yanhong^*; Wang, Zhichao; Dong, Hongyu; Yang, Shuting^*

来源：International Journal of Hydrogen Energy, 2018, 43(22): 10341-10350.

DOI：10.1016/j.ijhydene.2018.04.100

• Electrocatalyst
• Biological material
• Hierarchical porous carbon
• N and P co-doped
• ORR

We described a process of the preparation of N, P co-doped hierarchical porous carbon by one-step pyrolysis of the chitosan/phytic acid (CS/PA) precursor without extra activation processes, and the nitrogen and phosphorus were successfully incorporated into the carbon framework. Experimentally, the best performance was identified with NPC-1000 which possessed the highest BET specific surface area of 1117.2 m(2) g(-1). This NPC-1000 showed a half-wave potential of 50 mV difference with commercial Pt/C, better tolerance to methanol and a superior stability comparable to commercial Pt/C catalyst. The results suggest that it is a simple, feasible, and economical route to synthesis of hierarchical porous carbon which can be used as metal-free catalysts for oxygen reduction.

• 出版日期2018-5-31
• 单位河南师范大学