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Published on: November 30, 2021
Controllable Synthesis of Hollow Prism CoS for Supercapacitors Application
1School of Material Science and Engineering, University of Jinan, 250022, Jinan, P. R. China.
Abstract:
Controlled synthesis of a variety of microstructures is valuable for understanding the relationship of morphology and property and exploring potential applications. In this paper, hollow prismatic CoS nanostructures was created by prism Co-precursors as a template via sulfur treatment by using thioacetamide (TAA). A plausible mechanism was proposed for the formation of hollow prism structure. S2- comes from TAA to displace the anions in Co-precursor by adjusting temperature and pressure. The original prism morphology of the Co-precursor was maintained and a hollow prismatic structure were formed by an anion exchanging process. Interestingly, the composition of samples after sulfur treatment can be controlled by changing the diffusion to obtain Co₃O₄/CoS1.097 and CoS materials. As electrode materials for supercapacitor, hollow prisms CoS revealed ideal electrochemical performance.
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