Journal
APPLIED PHYSICS LETTERS
Volume 90, Issue 10, Pages -Publisher
AMER INST PHYSICS
DOI: 10.1063/1.2711286
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In this letter the authors show the structure transformation from distorted spinel Mn3O4 to layered structure birnessite by cyclic voltammetry (CV) cycling in aqueous Na2SO4 using the high temperature (900 degrees C) treated manganese oxide film as the electrode. The process is a dynamic-potential activated procedure, which causes the formation of sheet-shaped nanoarchitectures. During the cycling process, the specific capacitance of manganese oxide increases by more than 20 times, and the resulting film after 1000 CV cycles shows good power capability. (c) 2007 American Institute of Physics.
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