Journal
JOURNAL OF POWER SOURCES
Volume 164, Issue 2, Pages 953-958Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2006.10.100
Keywords
manganese dioxide; supercapacitors; lyotropic liquid crystalline; electrodeposition
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Mesoporous manganese dioxide supercapcitor electrode materials were electrochemically deposited onto silicon substrates coated with Pt using triblock copolymer species (Pluronic P 123 and F 127) as the structure-directing agents. Deposited electrodes of manganese dioxide film were physically characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM) and transmission electron microscopy (TEM), and were electrochemically characterized by cyclic voltammetry (CV) in 0.5 M Na2SO4 electrolyte. Maximum specific capacitance (SC) values of 449 F g(-1) was obtained at a scan rate of 10 mV s(-1) from F127 templated mesoporous MnO2. (c) 2006 Elsevier B.V. All rights reserved.
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