Journal
JOURNAL OF MATERIALS SCIENCE
Volume 53, Issue 2, Pages 1346-1355Publisher
SPRINGER
DOI: 10.1007/s10853-017-1575-7
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Funding
- K. C. Wong Magna Fund in Ningbo University
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Manganese oxides have been received increasing interest due to their potential application in supercapacitor electrode material. In this paper, a new metal-organic framework Mn-3(MA)(H2O)(2)(ipa)(3) (1) (H(2)ipa = isophthalic acid; MA = melamine) was synthesized via hydrothermal reaction; it presents a 3D network structure which can be simplified as an unusual non-interpenetrated pseudo-primitive 6-connected cubic topology. The Mn-MOF was regarded as a precursor to prepare variety of manganese oxides via calcination in different environments. Cyclic voltammetry and galvanostatic charge-discharge measurements were employed to characterize the electrochemical performance of MnO (X) materials in Na2SO4 electrolyte. The results show that the MnO (X) materials reveal excellent long-term cycling stability with enhanced capacitance after charge-discharge cycles. The optimum specific capacitance can be 150 F g(-1) with a current density of 1.0 A g(-1).
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