期刊
NANO ENERGY
卷 33, 期 -, 页码 334-342出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nanoen.2017.01.045
关键词
Biowaste; Heteroatom-doping; Electrochemistry; Oleophylic carbon aerogel; Oil/water separation
类别
资金
- National Science Foundation of China [21071047, 21471048]
- Research Project of Chinese Ministry of Education [213023A]
- Program for New Century Excellent Talents in University of Ministry of Education of China [NCET-11-0944]
- Excellent Youth Foundation of Henan Scientific Committee [124100510004]
- Program for Innovative Research Team in University of Henan Province [14IRTSTHN005]
Directly pyrolyzing biowastes has attracted intensive interest, probably because this economical and facile method provides an efficient and versatile platform for synthesizing functional carbons. This study describes the synthesis of different functional carbons from poplar catkins via different processes for multi-purpose applications. Nitrogen and oxygen dual-doped carbon (NODC-800) derived from catkins delivers superior electrochemical characteristics as oxygen reduction reaction (ORR) catalyst in alkaline fuel cell to that of commercial Pt/C in terms of catalytic activity, stability, resistance to methanol cross-over and CO poisoning. In addition, NODC-800 exhibits a high capacity (similar to 251 F g(-1) at 0.5 A g(-1)) with nearly 100% retention rate after 1000 cycles as supercapacitors electrodes. An oleophylic carbon aerogel derived from catkins is proven to be superoleophilic and porous enough to wet with oils and organic liquids and repel water completely to achieve oil/water separation. This work is a successful case to take full advantage of raw materials from nature via multiple technologies to achieve energy sustainable development and protect environmental from oils and organic solvents spill.
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