Fabrication and electrochemical performance of nanofibrous micro-frameworks of α-MnO2

A facile solid-phase conversion route is proposed to fabricate a micro-framework of α-MnO2 with a nanofibrous structure and high porosity.The fabrication is achieved by a three-step process using a preformed manganese tartrate with a rectangular framework as the precursor followed by thermal anneali...

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Bibliographic Details
Published inParticuology Vol. 17; no. 6; pp. 54 - 58
Main Authors Jin, Dalai, Liu, Ruirui, Ding, Xiaochu, Wang, Longcheng, Wang, Lina, Yue, Linhai
Format Journal Article
LanguageEnglish
Published Elsevier B.V 01.12.2014
Subjects
Hierarchical structure
Manganese oxide
Nanofiber
TG-DTA
二氧化锰
制造
微架构
电化学性能
纤维结构
纳米纤维
面积
Nanofiber
Manganese oxide
Hierarchical structure
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Summary:A facile solid-phase conversion route is proposed to fabricate a micro-framework of α-MnO2 with a nanofibrous structure and high porosity.The fabrication is achieved by a three-step process using a preformed manganese tartrate with a rectangular framework as the precursor followed by thermal annealing and hydrothermal oxidation to form the final nanofibrous structure.Evolution of the phase and the morphology are characterized by FESEM,XRD,TG-DTA,and TEM measurements.The electrochemically active material α-MnO2 exhibits both attractive stability of the Coulombic efficiency after long-term cyclic charging/discharging and acceptable specific capacitance.
Bibliography:A facile solid-phase conversion route is proposed to fabricate a micro-framework of α-MnO2 with a nanofibrous structure and high porosity.The fabrication is achieved by a three-step process using a preformed manganese tartrate with a rectangular framework as the precursor followed by thermal annealing and hydrothermal oxidation to form the final nanofibrous structure.Evolution of the phase and the morphology are characterized by FESEM,XRD,TG-DTA,and TEM measurements.The electrochemically active material α-MnO2 exhibits both attractive stability of the Coulombic efficiency after long-term cyclic charging/discharging and acceptable specific capacitance.
11-5671/O3
Manganese oxide;Hierarchical structure;Nanofiber
ISSN:1674-2001
2210-4291
DOI:10.1016/j.partic.2014.01.004