Journal
JOURNAL OF POWER SOURCES
Volume 189, Issue 2, Pages 1278-1283Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.jpowsour.2008.12.148
Keywords
Pillar; Layered material; Manganese oxide; Delamination/reassembling
Funding
- National High Technology Research and Development Program of China [2007AA03Z248]
- Key Project of the Minister of Education, China for Researching on Science and Technology [106148]
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MnO2-pillared layered manganese oxide has been first fabricated by a delamination/reassembling process followed by oxidation reaction and then by heat treatment. The structural evolution of MnO2-pillared layered manganese oxide has been characterized by XRD, SEM, DSC-GTA, IR and N-2 adsorption-desorption. MnO2-pillared layered manganese oxide shows a relative high thermal stability and mesoporous characteristic. The layered structure with a basal spacing of 0.66 nm could be maintained up to 400 degrees C. The electrochemical properties of the synthesized MnO2-pillared layered manganese oxide have been studied using cyclic voltammetry in a mild aqueous electrolyte. Sample MnO2-BirMO (300 degrees C) shows good capacitive behavior and cycling stability, and the specific capacitance value is 206 Fg(-1). (c) 2009 Elsevier B.V. All rights reserved.
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