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Colloidal Synthesis and Size‐Related Capacitance of Small Cobalt Sulfide Nanocrystals
Author(s) -
Luo Xintao,
Li Xuefei,
Zhang Hao,
Yang Bai
Publication year - 2013
Publication title -
particle and particle systems characterization
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.877
H-Index - 56
eISSN - 1521-4117
pISSN - 0934-0866
DOI - 10.1002/ppsc.201300037
Subject(s) - nanocrystal , capacitance , cobalt sulfide , colloid , solvent , materials science , boiling point , chemical engineering , cobalt , boiling , ligand (biochemistry) , sulfide , nanotechnology , electrochemistry , chemistry , electrode , organic chemistry , metallurgy , biochemistry , receptor , engineering
The capacitance of CoS material is greatly enhanced to 790 F g −1 by synthesizing small and solution‐dispersible nanocrystals (NCs) in high‐boiling‐point organic solvent. The results also indicate that the capacitance does not monotonously increase with the decrease of CoS size, but is reduced for ultrasmall NCs due to the resistance from ligand capping.