High electrochemical properties of graphene nanoribbons-hybridized manganese dioxide as cathode material for lithium battery

Manganese dioxide crystallite and its composite hybridized with graphene nanoribbons (GNRs) are prepared by hydrothermal method. The effects of reaction temperature and time, surfactant, and reducing Mn resource are discussed. As the cathode material for Li battery, γ-MnO 2 nanowire/nanorod hybridiz...

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Veröffentlicht in:	Journal of nanoparticle research : an interdisciplinary forum for nanoscale science and technology 2015-02, Vol.17 (2), p.1, Article 97
Hauptverfasser:	Huang, Xiangyue, Fan, Zihan, Lin, Cunli, Jia, Lina, Lin, Baiwei, Wang, Jiaqi, Hu, Xiaolin, Zhuang, Naifeng
Format:	Artikel
Sprache:	eng
Schlagworte:	Brief Communication Characterization and Evaluation of Materials Chemistry and Materials Science Electrochemistry Inorganic Chemistry Lasers Lithium Manganese Materials Science Nanoparticles Nanotechnology Optical Devices Optics Photonics Physical Chemistry Specific capacity
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Beschreibung
Zusammenfassung:	Manganese dioxide crystallite and its composite hybridized with graphene nanoribbons (GNRs) are prepared by hydrothermal method. The effects of reaction temperature and time, surfactant, and reducing Mn resource are discussed. As the cathode material for Li battery, γ-MnO 2 nanowire/nanorod hybridizing with (GNRs) (γ-MnO 2 /GNRs) shows a higher discharge specific capacity than it covering with carbon nanotubes or graphene sheets. In addition, the discharge specific capacity of γ-MnO 2 /GNRs is much higher than those of pure β-MnO 2 and compact β-MnO 2 /GNRs. The effects of crystal size, morphology, and GNR hybrid on the discharge specific capacity are discussed.
ISSN:	1388-0764 1572-896X
DOI:	10.1007/s11051-015-2908-6