Synthesis, Characterization and Electrochemical Performance of Manganese Dioxide in a Quaternary Microemulsion: the Role of the Co-surfactant and Water

Manganese dioxide nanoparticles were synthesized in a quaternary microemulsion using surfactant hexadecyl-trimethylammonium bromide. The structure and morphology of the as-prepared manganese dioxide powders were characterized by means of powder X-ray diffraction, scanning electron microscopy and tra...

Full description

Saved in:
Bibliographic Details
Published in:International journal of electrochemical science 2013-06, Vol.8 (6), p.8740-8751
Main Authors: Li, Baohua, Gao, Guangyao, Zhai, Dengyun, Wei, Chunguang, He, Yanbing, Du, Hongda, Kang, Feiyu
Format: Article
Language:English
Subjects:
co-surfactant
Manganese dioxide
microemulsion
supercapacitor
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Manganese dioxide nanoparticles were synthesized in a quaternary microemulsion using surfactant hexadecyl-trimethylammonium bromide. The structure and morphology of the as-prepared manganese dioxide powders were characterized by means of powder X-ray diffraction, scanning electron microscopy and transmission electron microscopy. The average size of nanoparticles, as well as the crystalline structure of manganese dioxide, can be controlled by the content of co-surfactant n-pentanol and water. The particle size decreased with adding the amount of n-pentanol or reducing water, and simultaneously manganese dioxide nanosheets were generated. Their electrochemical properties were investigated using cyclic voltammetry in 0.1 M Na2SO4 electrolyte. The specific capacitance of the as-prepared manganese dioxide powder with the surface area of 231.5 m2 g-1 was 140.5 F g-1 at scanning rate of 2 mV s-1.
ISSN:1452-3981
1452-3981
DOI:10.1016/S1452-3981(23)12924-5