MnO(2) Nanorods Intercalating Graphene Oxide/Polyaniline Ternary Composites for Robust High-Performance Supercapacitors

New ternary composites of MnO(2) nanorods, polyaniline (PANI) and graphene oxide (GO) have been prepared by a two-step process. The 100 nm-long MnO(2) nanorods with a diameter ~20 nm are conformably coated with PANI layers and fastened between GO layers. The MnO(2) nanorods incorporated ternary comp...

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Detalles Bibliográficos
Autores principales: Han, Guangqiang, Liu, Yun, Zhang, Lingling, Kan, Erjun, Zhang, Shaopeng, Tang, Jian, Tang, Weihua
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4001101/
https://www.ncbi.nlm.nih.gov/pubmed/24769835
http://dx.doi.org/10.1038/srep04824
Descripción
Sumario:New ternary composites of MnO(2) nanorods, polyaniline (PANI) and graphene oxide (GO) have been prepared by a two-step process. The 100 nm-long MnO(2) nanorods with a diameter ~20 nm are conformably coated with PANI layers and fastened between GO layers. The MnO(2) nanorods incorporated ternary composites electrode exhibits significantly increased specific capacitance than PANI/GO binary composite in supercapacitors. The ternary composite with 70% MnO(2) exhibits a highest specific capacitance reaching 512 F/g and outstanding cycling performance, with ~97% capacitance retained over 5000 cycles. The ternary composite approach offers an effective solution to enhance the device performance of metal-oxide based supercapacitors for long cycling applications.

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