Journal
NANOSCALE
Volume 7, Issue 47, Pages 20180-20187Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/c5nr06116d
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Funding
- National Natural Science Foundation of China [51173033, 51572060, 51502062]
- Fundamental Research Funds for the Central Universities [HIT.BRETIII. 201224, HIT.BRETIII. 201312]
- Excellent Youth Foundation of Heilongjiang Scientific Committee [JC2015010]
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With the high energy ball milling method, a Co9S8-decorated reduced graphene oxide (RGO) composite, which shows excellent hydrogen storage capacity, has been successfully fabricated with a well-organized layered structure. Moreover, the stabilized mechanism of the well-organized layered structure is investigated and attributed to the strong interactions between Co9S8 and defective RGO. The C-S bond interaction is identified and the hydrogen storage process is also studied with different analysis methods. Finally, an optimized Co9S8 to RGO weight ratio of 6 : 1 shows excellent electrochemical performances in terms of the excellent cycling stability and competitive hydrogen storage capacity of 4.86 wt%.
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