Issue 12, 2019

Hierarchical porous hollow FeFe(CN)6 nanospheres wrapped with I-doped graphene as anode materials for lithium-ion batteries

Abstract

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.

Graphical abstract: Hierarchical porous hollow FeFe(CN)6 nanospheres wrapped with I-doped graphene as anode materials for lithium-ion batteries

Supplementary files

Article information

Article type
Paper
Submitted
29 Dec 2018
Accepted
25 Feb 2019
First published
28 Feb 2019

Dalton Trans., 2019,48, 4058-4066

Hierarchical porous hollow FeFe(CN)6 nanospheres wrapped with I-doped graphene as anode materials for lithium-ion batteries

Z. Ren, D. Hu, X. Zhang, D. Liu and C. Wang, Dalton Trans., 2019, 48, 4058 DOI: 10.1039/C8DT05150J

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