Journal
JOURNAL OF ENERGY STORAGE
Volume 31, Issue -, Pages -Publisher
ELSEVIER
DOI: 10.1016/j.est.2020.101544
Keywords
Prussian blue analogue; Hollow structure; Nanocube; Supercapacitor
Categories
Funding
- National Natural Science Foundation of China [NSFC-21671170]
- Natural Science Foundation for Young Scientists of Jiangsu Province, China [BK20190903]
- Natural Science Foundation of the Jiangsu Higher Education Institutions of China [19KJB430043]
- Changjiang scholars program of the Ministry of Education [Q2018270]
- Program for New Century Excellent Talents of the University in China [NCET-13-0645]
- Six Talent Plan [2015-XCL-030]
- Qinglan Project
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The hollow cobalt-iron Prussian blue analogue (Co2HCFe) is fabricated via simple co-precipitation at room temperature through a way of dominating the molar mass of transition metal cobalt. The hollow structure nanomaterials have more active sites, larger area in contact with electrolyte, and good electrical conductivity. These advantages make Co2HCFe exhibit excellent electrochemical performance as the electrode material of supercapacitor. At the current density of 0.5 A g(-1), the specific capacitance of Co2HCFe even reaches 2526 F g(-1) under alkaline conditions, while remaining a capacity retention rate of 90.25% after 2000 cycles.
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