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Manganese oxide doping carbon aerogels prepared with MnO2 coordinated by N, N - dimethylmethanamide for supercapacitors.
Xu, Yuelong; Wang, Shasha; Ren, Bin; Zhao, Junping; Zhang, Lihui; Dong, Xiaoxi; Liu, Zhenfa.
Afiliación
  • Xu Y; Institute of Energy Resources, Hebei Academy of Sciences, Shijiazhuang 050081, China; Hebei Engineering Research Center for Water Saving in Industry, Shijiazhuang 050081, China.
  • Wang S; Institute of Energy Resources, Hebei Academy of Sciences, Shijiazhuang 050081, China; Hebei Engineering Research Center for Water Saving in Industry, Shijiazhuang 050081, China; School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300000, China.
  • Ren B; Institute of Energy Resources, Hebei Academy of Sciences, Shijiazhuang 050081, China; Hebei Engineering Research Center for Water Saving in Industry, Shijiazhuang 050081, China.
  • Zhao J; Institute of Energy Resources, Hebei Academy of Sciences, Shijiazhuang 050081, China; Hebei Engineering Research Center for Water Saving in Industry, Shijiazhuang 050081, China.
  • Zhang L; Institute of Energy Resources, Hebei Academy of Sciences, Shijiazhuang 050081, China; Hebei Engineering Research Center for Water Saving in Industry, Shijiazhuang 050081, China.
  • Dong X; Institute of Energy Resources, Hebei Academy of Sciences, Shijiazhuang 050081, China; Hebei Engineering Research Center for Water Saving in Industry, Shijiazhuang 050081, China; School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300000, China.
  • Liu Z; Institute of Energy Resources, Hebei Academy of Sciences, Shijiazhuang 050081, China; Hebei Engineering Research Center for Water Saving in Industry, Shijiazhuang 050081, China; School of Chemical Engineering and Technology, Hebei University of Technology, Tianjin 300000, China. Electronic address:
J Colloid Interface Sci ; 537: 486-495, 2019 Mar 01.
Article en En | MEDLINE | ID: mdl-30469117
Carbon aerogels with excellent conductive characteristics and high specific capacitance have attracted more and more interests for next-generation energy storage applications. Three-dimensional interconnected Mn2O3/carbon aerogel supercapacitor electrodes are prepared by a novel doping method using MnO2 coordinated by N, N-dimethylmethanamide (DMF). The coordinative MnO2 (DMF/MnO2) plays a key role in the sol-gel process of resorcinol and formaldehyde. The doped carbon aerogels exhibits a high specific surface area of 859 m2 g-1 and a good pore-size distribution of 10-15 nm. All of the doped carbon aerogels exhibit higher specific capacitance than pure carbon aerogels, and the highest specific capacitance (170 F g-1), at current density of 1.0 A g-1, is obtained in Mn-CA-5% when 5 mol% DMF/MnO2 is added to the precursor solution. The specific capacitance is as high as 100 F g-1, at current density of 10.0 A g-1, and 97% of initial capacitance is retained over 1000 cycles at a current density of 5.0 A g-1. The doped carbon aerogels exhibits a high coulombic efficiency (up to 99.8%) and a good rate capability. The corresponding result is due to the novel doping method of DMF/MnO2 addition.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos
Texto completo
Añadir a Mi BVS
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XML
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: J Colloid Interface Sci Año: 2019 Tipo del documento: Article País de afiliación: China Pais de publicación: Estados Unidos