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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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Publication details

The article was received on 15 Sep 2017, accepted on 19 Nov 2017 and first published on 20 Nov 2017


Article type: Paper
DOI: 10.1039/C7NR06886G
Citation: Nanoscale, 2017,9, 19408-19414
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    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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