期刊
NANOTECHNOLOGY
卷 30, 期 2, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.1088/1361-6528/aae999
关键词
niobium oxide; binder-free; pseudocapacitor; aqueous electrolyte; energy storage
资金
- National Natural Science Foundation of China [21706103]
- Natural Science Foundation of Jiangsu Province [BK20170549]
- China Postdoctoral Science Foundation [2017M621647]
- Project Startup Foundation for Advanced Talents [16JDG020]
- Priority Academic Program Development of Jiangsu Higher Education Institutions
TT-Nb2O5 nanoparticles grown on electrically conducting fluorine-doped tin oxide (FTO) glass were successfully synthesized by a facile one-pot hydrothermal method at low temperature. The as-prepared nanostructured TT-Nb2O5/FTO was directly used as the working electrode to investigate its pseudocapacitive performance without any binder or conductive agent, which exhibited a high specific capacitance of 322 F g(-1) at a current density of 3.68 A g(-1), excellent rate capability (258.1 F g(-1) at a high scan rate of 100 mV s(-1) is about 91.6% of that at 5 mV s(-1)), and good cycling stability (the capacitance retention is 74.3% after 3000 cycles). More importantly, it is the first time electrochemical measurements for Nb2O5 electrode in aqueous electrolyte, which are low-cost and easy to operate, have been carried out.
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