Lile Liu, K. P Annamalai and Yousheng Tao Pages 43 - 48 ( 6 )
NiS/reduced graphene oxide nanocomposites were prepared by a hydrothermal method. Electron microscope observation revealed that the materials were of thin sheet-like structure and X-ray diffraction indicated the NiS of high-purity on the graphene nanosheets. Nitrogen adsorption on the samples at 77 K revealed the porous properties. Such materials were pseudo-active, exhibiting high specific capacitance of 978 F g 1 at 1 A g 1 in 3M KOH and high capacitance retention of 76% over 1000 cycles at 5 A g 1, promising for applications in supercapacitors.
Electrode, energy storage, graphene, nanocomposite, nickel sulfide, supercapacitor.
CAS Key Laboratory of Design and Assembly of Functional Nanostructures, Haixi Institutes, Chinese Academy of Sciences (CAS), Fuzhou 350002, China.