Heavily Graphitic-Nitrogen Self-doped High-porosity Carbon for the Electrocatalysis of Oxygen Reduction Reaction
Autor: | Tong Feng, Wenli Liao, Zhongbin Li, Lingtao Sun, Dongping Shi, Chaozhong Guo, Yu Huang, Yi Wang, Jing Cheng, Yanrong Li, Qizhi Diao |
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Jazyk: | angličtina |
Rok vydání: | 2017 |
Předmět: | |
Zdroj: | Nanoscale Research Letters, Vol 12, Iss 1, Pp 1-7 (2017) |
Druh dokumentu: | article |
ISSN: | 1931-7573 1556-276X |
DOI: | 10.1186/s11671-017-2364-6 |
Popis: | Abstract Large-scale production of active and stable porous carbon catalysts for oxygen reduction reaction (ORR) from protein-rich biomass became a hot topic in fuel cell technology. Here, we report a facile strategy for synthesis of nitrogen-doped porous nanocarbons by means of a simple two-step pyrolysis process combined with the activation of zinc chloride and acid-treatment process, in which kidney bean via low-temperature carbonization was preferentially adopted as the only carbon-nitrogen sources. The results show that this carbon material exhibits excellent ORR electrocatalytic activity, and higher durability and methanol-tolerant property compared to the state-of-the-art Pt/C catalyst for the ORR, which can be mainly attributed to high graphitic-nitrogen content, high specific surface area, and porous characteristics. Our results can encourage the synthesis of high-performance carbon-based ORR electrocatalysts derived from widely-existed natural biomass. |
Databáze: | Directory of Open Access Journals |
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