期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 491, 期 -, 页码 161-166出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2016.12.033
关键词
Nitrogen-doped carbon spheres; Electrochemical flow capacitor; High energy density; Long cycle life; Pseudo-capacitive electrode material
资金
- National Natural Science Foundation of China [21276087]
One of the most challenging issues in developing electrochemical flow capacitor (EFC) technology is the design and synthesis of active electrode materials with high energy density and long cycle life. However, in practical cases, the energy density and cycle ability obtained currently cannot meet the practical need. In this work, we propose a new active material, nitrogen-doped carbon spheres (NCSs), as flowable electrodes for EFC application. The NCSs were prepared via one-pot hydrothermal synthesis in the presence of resorcinol/formaldehyde as carbon precursors and melamine as nitrogen precursor, followed by carbonization in nitrogen flow at various temperatures. The results of EFC experiments demonstrate that NCSs obtained at 800 degrees C exhibit a high energy density of 13.5 Wh kg(-1) and an excellent cycle ability, indicating the superiority of NCSs for EFC application. (C) 2016 Elsevier Inc. All rights reserved.
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