Journal
DALTON TRANSACTIONS
Volume 48, Issue 12, Pages 4058-4066Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8dt05150j
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Funding
- National Key R&D Program of China [2017YFA0700104]
- NSFC [21571170, 21501168]
- Tianjin Municipal Science and Technology Commission [17JCZDJC38000]
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Hierarchical porous hollow FeFe(CN)(6) nanospheres were synthesized via a facile anisotropic chemical etching route at different temperatures. Herein, we integrated these FeFe(CN)(6) nanospheres and conductive iodine-doped graphene (IG) into a lithium-ion battery (LIB) system, FeFe(CN)(6)@IG. The hollow Prussian-blue type FeFe(CN)(6) nanospheres with an average particle size of 230 nm are uniformly and tightly encapsulated by IG sheets. As an anode material for LIBs, the fabricated FeFe(CN)(6)@IG exhibits high specific capacity, excellent rate properties, and superior cycling stability. A reversible capacity can be maintained at 709 mA h g(-1) after 250 cycles at a current density of 1000 mA g(-1). Even at a current rate of 2000 mA g(-1), the capacity could reach 473 mA h g(-1). This facile fabrication strategy may pave the way for constructing high performance Prussian blue-based anode materials for potential application in advanced lithium-ion batteries.
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