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With the aim to develop high-performance sulfur electrode, manganese sulfide (MnS) was combined with sulfur/porous carbon composite electrode by a simple precipitation method. Both X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FTIR) results show that as-prepared MnS corresponds to Rambergite phase with a hexagonal structure (γ-MnS). MnS could be uniformly dispersed in the carbon matrix when the content was less than 20 wt%. When the content of MnS increased, γ-MnS particles aggregated on both outside of the mesoporous carbon channels and the surface of carbon particles. The CV curves of MnS/MC in the first cycle were similar to elemental sulfur, indicating partially decomposed MnS at the surface of mesoporous carbon. Charge/discharge tests indicated that the initial discharge-specific capacity of S/MnS/MC was 1412.5 mAh g-1 and remained a reversible capacity of 727.4 mAh g-1 after 50 cycles at a current of 100 mA g-1, which is superior to that of sulfur composite electrode without MnS. © 2013 Springer-Verlag Berlin Heidelberg.
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Ionics
ISSN: 0947-7047
Year: 2014
Issue: 5
Volume: 20
Page: 659-664
1 . 7 5 4
JCR@2014
2 . 4 0 0
JCR@2023
ESI HC Threshold:213
JCR Journal Grade:3
CAS Journal Grade:4
Cited Count:
SCOPUS Cited Count: 31
ESI Highly Cited Papers on the List: 0 Unfold All
WanFang Cited Count:
Chinese Cited Count:
30 Days PV: 1
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