Jump to main content
Jump to site search
Access to RSC content Close the message box

Continue to access RSC content when you are not at your institution. Follow our step-by-step guide.


Issue 1, 2011
Previous Article Next Article

Hydrothermal synthesis and structure evolution of hierarchical cobalt sulfidenanostructures

Author affiliations

Abstract

Hierarchical and well-defined cobalt sulfide with flower-like, cube-like, ball-like, and surface hollowed-out nanostructures were successfully prepared by a facile one-pot hydrothermal synthesis approach, employing Co(NO3)2·6H2O as a cobalt precursor and thiourea as a sulfur source. The morphologies of these structures can be easily controlled by simply adjusting the molar ratio of reactants and solvents, reaction time, reaction temperature, and ligand types. Thiourea plays two important roles in the growth process of CoS nanostructures. First, it is decomposed to produce S2− for the final formation of CoS. On the other hand, it serves as a structure-directing agent to control the crystalline growth of CoS. The electrochemical capacitance performances of the CoS nanostructures were studied, and the flower-like CoS nanostructures show the best charge-discharge performance among all CoS products with the highest specific capacitance values of 389 F g−1 at current density of 5 mA cm−2, and 277 F g−1 at higher current density of 50 mA cm−2.

Graphical abstract: Hydrothermal synthesis and structure evolution of hierarchical cobalt sulfide nanostructures

Back to tab navigation

Supplementary files

Article information


Submitted
26 Aug 2010
Accepted
07 Oct 2010
First published
18 Nov 2010

Dalton Trans., 2011,40, 243-248
Article type
Paper

Hydrothermal synthesis and structure evolution of hierarchical cobalt sulfide nanostructures

W. Dong, X. Wang, B. Li, L. Wang, B. Chen, C. Li, X. Li, T. Zhang and Z. Shi, Dalton Trans., 2011, 40, 243
DOI: 10.1039/C0DT01107J

Social activity

Search articles by author

Spotlight

Advertisements