期刊
SUSTAINABLE ENERGY & FUELS
卷 2, 期 8, 页码 1820-1827出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8se00231b
关键词
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资金
- State Key Laboratory of Organic-Inorganic Composites [oic-201503005]
- National Key Research and Development Program of China [2017YFB0306800]
- 111 project [B13005]
- Fundamental Research Funds for the Central Universities [buctrc201525]
- Beijing National Laboratory for Molecular Sciences [BNLMS20160133]
- State Key Laboratory of Separation Membranes and Membrane Processes (Tianjin Polytechnic University) [M2-201704]
- World Academy of Sciences (TWAS) [16-072 RG/CHE/AF/AC_I - FR3240293327]
Finding sustainable, active, inexpensive, and stable electrocatalysts to replace Pt-based materials for the oxygen reduction reaction (ORR) remains a significant challenge. Here we report the use of functionalized lignin biomass as both carbon and dopant source for the direct synthesis of N and S dual-doped carbon sheet networks with abundant mesopores and high surface area. The resulting N and S-doped porous carbon exhibits good activity, long-term durability, and high selectivity for metal-free oxygen reduction electrocatalysis, approaching the performance of 20 wt% Pt/C, the state of the art ORR catalyst. Our method using natural biological resources thus offers a promising way to produce very promising noble metal-free ORR catalysts with potential application in alkaline fuel cells and metal-air batteries.
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