期刊
ACS APPLIED MATERIALS & INTERFACES
卷 6, 期 17, 页码 14911-14918出版社
AMER CHEMICAL SOC
DOI: 10.1021/am502215t
关键词
carbonization; carbon nanosheet; nitrogen adsorption/desorption; methanol crossover; CO poisoning
资金
- Recruitment Program of Global Experts
- PhD Start-up Funds of the Natural Science Foundation of Guangdong Province [x2hjB6130130]
- Zhujiang New Stars of Science Technology [x2hjB2140700]
- Fundamental Research Funds for Central Universities [x2hjD2131690]
- National Natural Science Foundation of China [31200458]
- US National Science Foundation [CHE-1265635]
Nitrogen self-doped porous carbon was prepared by calcination treatment of surplus sludge, a toxic byproduct from microbial wastewater treatments, and exhibited a mesoporous structure, as manifested in scanning and transmission electron microscopic measurements. Nitrogen adsorption/desorption studies showed that the porous carbon featured a BET surface area as high as 310.8 m(2)/g and a rather broad range of pore size from 5 to 80 nm. X-ray photoelectron spectroscopic studies confirmed the incorporation of nitrogen into the graphitic matrix forming pyridinic and pyrrolic moieties. Interestingly, the obtained porous carbon exhibited apparent electrocatalytic activity in oxygen reduction in alkaline media, with the optimal temperatures identified within the range of 600 to 800 degrees C, where the number of electron transfers involved in oxygen reduction was estimated to be 3.5 to 3.7 and the performance was rather comparable to leading literature results as a consequence of deliberate engineering of the graphitic matrix by nitrogen doping.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据