Colloidal Synthesis and Size-Related Capacitance of Small Cobalt Sulfide Nanocrystals

Colloidal Synthesis and Size-Related Capacitance of Small Cobalt Sulfide Nanocrystals

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 ul...

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Veröffentlicht in:Particle & particle systems characterization 2013-06, Vol.30 (6), p.501-505
Hauptverfasser: Luo, Xintao, Li, Xuefei, Zhang, Hao, Yang, Bai
Format: Artikel
Sprache:eng
Schlagworte:
Capacitance
Capping
Cobalt
colloidal synthesis
CoS
Ligands
Nanocrystals
nanocrystasl
Solvents
Sulfides
supercapacitors
Synthesis
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Zusammenfassung: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.
ISSN:0934-0866
1521-4117
DOI:10.1002/ppsc.201300037