Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 691, Issue -, Pages 407-415Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2016.08.285
Keywords
Hollow ZnFe2O4 nanosphere; Doped graphene; Electrochemical performance
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Funding
- Research Fund for the Doctoral Program of Higher Education of China [20136102110046]
- Natural Science Foundation of Shaanxi Province [2015JZ014]
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Nitrogen and sulfur co-doped graphene supported hollow ZnFe2O4 nanosphere composites have been successfully synthesized via a facile, two-step hydrothermal method. The obtained ZnFe2O4/NSG samples show interconnected hollow sphere nanostructure with a size of similar to 250 nm. The product demonstrated a high initial discharge capacity of 2478.6 mAhg(-1) at a rate of 300 mAg(-1). After 100 cycles, it delivered a high reversible capacity of 729.06 mAhg(-1) and coulombic efficiency of 99.36%, while at high rate capability of 1800 mAg(-1), the rate capacity stabilize at 650.1 mAhg(-1). It is believed that the composite with good rate capability and stability can be a competitive anode for lithium-ion batteries. (C) 2016 Elsevier B.V. All rights reserved.
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