Controlled synthesis and characterization of hybrid Sn-doped Co^sub 3^O^sub 4^ nanowires for supercapacitors

We report a novel hybrid Sn-doped Co3O4 nanowires synthesized by a facile, one-step hydrothermal growth method on conductive substrates (Ni foam) followed by a post-annealing procedure. The Sn-doped Co3O4 nanowires are used as the electrode materials for supercapacitors. The electrochemical results...

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Bibliographic Details
Published inMaterials letters Vol. 216; p. 248
Main Authors Zhou, Yi, Wang, Yanli, Wang, Jingfeng, Lin, Lin, Wu, Xiaoyan, He, Dannong
Format Journal Article
LanguageEnglish
Published Amsterdam Elsevier BV 01.04.2018
Subjects
Annealing
Chemical synthesis
Cobalt oxides
Composite materials
Electrode materials
Electrodes
Energy storage
Flux density
Materials science
Metal foams
Nanocomposites
Nanowires
Storage systems
Substrates
Supercapacitors
Tin
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Summary:We report a novel hybrid Sn-doped Co3O4 nanowires synthesized by a facile, one-step hydrothermal growth method on conductive substrates (Ni foam) followed by a post-annealing procedure. The Sn-doped Co3O4 nanowires are used as the electrode materials for supercapacitors. The electrochemical results show 0.4-Sn-doped Co3O4 (the initial adding molar ratio of Sn and Co = 0.4) has higher specific capacitance of 151.8 F/g at 5 mV/s. The nanocomposites presented in this work could be considered as potential electrode materials for next generation supercapacitors in high energy density storage systems.
ISSN:0167-577X
1873-4979