期刊
NANOSCALE
卷 10, 期 37, 页码 17958-17964出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8nr04780d
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资金
- National Key RAMP
- D Program of China [2017YFA0207201]
- National Natural Science Foundation [21604038, 21574065, 21504043, 21604040, 51702155]
- National Science Funds for Distinguished Young Scholars [21625401]
- Jiangsu Provincial Funds for Natural Science Foundation [BK20160975, BK20160993, BK20170975]
- Program for Outstanding Young Scholars from the Organization Department of the CPC Central Committee
- National Key Basic Research Program of China [2015CB932200]
The designed construction of micro-/nano-structures and multi-composites on electrodes showed a promising prospect to improve electrochemical properties in supercapacitors. Herein, a facile carbonizing strategy was adopted for fabricating leaf-like CoSNC nanocomposites, which possess both the sheet structure and multi-composites of well-dispersed CoS2 nanoparticles in N-doped carbon frameworks. First, the leaf-like nanocomposites with high aspect ratios effectively shortened the ion/electron transmission paths and exposed more faradaic redox sites. Second, the N-doped carbon frameworks could stabilize the electrode structure during charge/discharge processes. Third, the well-dispersed CoS2 nanoparticles could also enhance the electrochemical kinetics. Hence, leaf-like CoSNC nanocomposites as electrode materials exhibited high specific capacitance, good rate capacity and cycling stability.
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