Journal
MATERIALS LETTERS
Volume 266, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.matlet.2020.127505
Keywords
Carbon materials; Energy storage and conversion; Active electrode; Supercapacitor
Funding
- National Key R&D Program of China [2017YFA0403503]
- National Natural Science Foundation of China [11674001]
- Anhui Provincial Natural Science Foundation [1708085MA07, 1708085QE116]
- Science Foundation of Anhui Education [KJ2013A030]
- Anhui University [J01003206]
- Opening Project of State Key Laboratory of High Performance Ceramics and Superfine Microstructure [SKL201607SIC]
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There is an urgent need to develop means of greener synthesis strategies based on harmless activated chemical reagents, sustainable, economical and effective carbon precursors as active materials for supercapacitors. In this respect, the design and production of carbon-based electrode of supercapacitor with high catalytic activity is of great significance. The BET surface area of the N-S-doped carbon hollow sphere (N-S-CHS) is as large as 556 m(2) g(-1). The N-S-CHS electrode displays a high specific capacitance of 439.98 F g(-1) at 1 A g(-1), after 4000 cycles of constant current charge and discharge, the specific capacitance remains 92.3%. This work highlights the crucial role of metallic-free materials for applications in the energy storage and conversion. (C) 2020 Elsevier B.V. All rights reserved.
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