Synthesis of polycrystalline cobalt selenide nanotubes and their catalytic and capacitive behaviors

Polycrystalline Co sub(0.85)Se nanotubes are successfully prepared by using Co(CO sub(3)) sub(0.35)Cl sub(0.20)(OH) sub(1.10) nanorods as precursor through a solvothermal process. The as-prepared Co sub(0.85)Se nanotubes show efficient catalytic performance for decomposition of hydrazine hydrate at...

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Published inCrystEngComm Vol. 15; no. 29; pp. 5928 - 5934
Main Authors Wang, Zhenghua, Sha, Qiang, Zhang, Fengwei, Pu, Jun, Zhang, Wu
Format Journal Article
LanguageEnglish
Published 01.01.2013
Subjects
Activation
Capacitance
Catalysis
Catalysts
Current density
Electrode materials
Electrodes
Nanotubes
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Summary:Polycrystalline Co sub(0.85)Se nanotubes are successfully prepared by using Co(CO sub(3)) sub(0.35)Cl sub(0.20)(OH) sub(1.10) nanorods as precursor through a solvothermal process. The as-prepared Co sub(0.85)Se nanotubes show efficient catalytic performance for decomposition of hydrazine hydrate at room temperature. The catalysts can be repeatedly used and their repeatability is also excellent. The Co sub(0.85)Se nanotubes can also be applied as supercapacitor electrode materials. Galvanostatic charge-discharge measurements show that the Co sub(0.85)Se nanotube electrode has a specific capacitance of 238 F g super(-1) at a current density of 1 A g super(-1) after 100 cycles of activation, and retaining 90.3% of the capacitance after the next 1900 cycles.
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ISSN:1466-8033
1466-8033
DOI:10.1039/c3ce40152a