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Issue 48, 2017
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In situ synthesis of iron sulfide embedded porous carbon hollow spheres for sodium ion batteries

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Abstract

Iron sulfide embedded porous carbon hollow spheres (FeSx@CS) have been successfully synthesized through a facile and environment friendly in situ synthetic method. Using this method, a porous carbon matrix and uniformly dispersed iron sulfide nanoparticles were formed simultaneously and assembled into hollow spheres. The as-synthesized FeSx@CS material showed high reversible capacity, outstanding cycle performance, and excellent rate capability when it was applied as an anode material for sodium ion batteries. It delivered a remarkable charge capacity of 656.75 mA h g−1 in the first cycle and a capacity retention of 97% after 100 cycles. When the current density was increased from 50 mA g−1 to 1000 and 2000 mA g−1, high capacity retention of 76.3% and 62.5% was achieved, respectively.

Graphical abstract: In situ synthesis of iron sulfide embedded porous carbon hollow spheres for sodium ion batteries

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Supplementary files

Article information


Submitted
15 Sep 2017
Accepted
19 Nov 2017
First published
20 Nov 2017

Nanoscale, 2017,9, 19408-19414
Article type
Paper

In situ synthesis of iron sulfide embedded porous carbon hollow spheres for sodium ion batteries

Y. Tan, K. Wong, Z. Zhang and K. M. Ng, Nanoscale, 2017, 9, 19408
DOI: 10.1039/C7NR06886G

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