Journal
CHEMICAL COMMUNICATIONS
Volume 54, Issue 45, Pages 5704-5707Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8cc02669f
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Funding
- National Postdoctoral Program for Innovative Talents [BX201700221]
- National Natural Science Fund of China [21521001]
- Anhui Provincial Natural Science Foundation [1608085MB22]
- Specialized Research Fund for the Doctoral Program of Higher Education [20133402110047]
- Fundamental Research Funds for the Central Universities [WK2060190053]
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In this work, we have developed a simple and facile method to synchronously synthesize hollow FeSe2/C nanospheres using the Kirkendall effect. When evaluated as an anode for SIBs, the hollow FeSe2/C nanospheres exhibit a high discharge capacity retention of 474.1 mA h g(-1) at 0.05 A g(-1) (based on the calculation of FeSe2), which is very close to the theoretical capacity of FeSe2 (approximate to 500 mA h g(-1)). Meanwhile, hollow FeSe2/C also has a superior rate capability of 364.5 and 316.5 mA h g(-1) even at 2.0 and 5.0 A g(-1), respectively. The high performance of the hollow FeSe2/C nanospheres can be ascribed to the unique carbon coated hollow nanostructure.
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