Iodine/nitrogen co-doped graphene as metal free catalyst for oxygen reduction reaction. (December 2015)

• Record Type: Journal Article
• Authors: Zhan, Yunfeng; Huang, Jilin; Lin, Zhipeng; Yu, Xiang; Zeng, Dongrong; Zhang, Xiaoxue; Xie, Fangyan; Zhang, Weihong; Chen, Jian; Meng, Hui
• Is Part Of: Carbon. Volume 95(2015)
• Page Start: 930
• Page End: 939
• Publication Date: 2015-12
• Subjects: Oxygen reduction reaction -- Metal free catalyst -- Non-noble metal catalyst -- Doped graphene; Carbon -- Periodicals; Carbone -- Périodiques; Koolstof; Toepassingen; Electronic journals; 546.681
• DOI: 10.1016/j.carbon.2015.09.024
• Languages: English
• ISSNs: 0008-6223

Abstract

Abstract: By doping graphene with iodine and ammonia, I and N co-doped graphene (ING) is prepared and used as metal free catalyst for the oxygen reduction reaction (ORR) both in alkaline and acidic media. The as-prepared catalyst exhibits striking activity in alkaline with an onset potential of 0.945 V (vs. RHE) which is the same with commercial Pt/C catalyst. In acidic media the ING shows a competitive activity. In both alkaline and acidic media the ORR is four-electron process catalyzed by ING. The superior ORR performance of the ING can be attributed to the synergetic doping effect of I and N. Based on its outstanding performance the ING can work as a metal free catalyst for fuel cell with much lower cost than currently used Pt/C catalyst.