title: Manganese oxide nanowires wrapped with nitrogen doped carbon layers for high performance supercapacitors.
abstract: In this study, manganese oxide nanowires wrapped by nitrogen-doped carbon layers (MnO(x)@NCs) were prepared by carbonization of poly(o-phenylenediamine) layer coated onto MnO2 nanowires for high performance supercapacitors. The component and structure of the MnO(x)@NCs were controlled through carbonization procedure under different temperatures. Results demonstrated that this composite combined the high conductivity and high specific surface area of nitrogen-doped carbon layers with the high pseudo-capacitance of manganese oxide nanowires. The as-prepared MnO(x)@NCs exhibited superior capacitive properties in 1 M Na2SO4 aqueous solution, such as high conductivity (4.167×10(-3) S cm(-1)), high specific capacitance (269 F g(-1) at 10 mV s(-1)) and long cycle life (134 F g(-1) after 1200 cycles at a scan rate of 50 mV s(-1)). It is reckoned that the present novel hybrid nanowires can serve as a promising electrode material for supercapacitors and other electrochemical devices.
authors.affiliation: Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China.
authors.forename: Ying
authors.initials: Y
authors.lastname: Li
authors.affiliation: Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China.
authors.forename: Yuan
authors.initials: Y
authors.lastname: Mei
authors.affiliation: Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China.
authors.forename: Lin-Qun
authors.initials: LQ
authors.lastname: Zhang
authors.affiliation: Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China.
authors.forename: Jian-Hai
authors.initials: JH
authors.lastname: Wang
authors.affiliation: Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China.
authors.forename: An-Ran
authors.initials: AR
authors.lastname: Liu
authors.affiliation: Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China.
authors.forename: Yuan-Jian
authors.initials: YJ
authors.lastname: Zhang
authors.affiliation: Jiangsu Province Hi-Tech Key Laboratory for Bio-medical Research, School of Chemistry and Chemical Engineering, Southeast University, Nanjing 210096, China. Electronic address: liusq@seu.edu.cn.
authors.forename: Song-Qin
authors.initials: SQ
authors.lastname: Liu
mesh_terms: D002244:Carbon / Q000737:chemistry*; D025802:Electric Capacitance; D004553:Electric Conductivity; D055664:Electrochemical Techniques; D004566:Electrodes; D017895:Manganese Compounds / Q000737:chemistry*; D053770:Nanowires / Q000737:chemistry* / Q000648:ultrastructure; D009584:Nitrogen / Q000737:chemistry*; D010087:Oxides / Q000737:chemistry*; D010316:Particle Size; D010655:Phenylenediamines / Q000737:chemistry*
chemical_list: D017895:Manganese Compounds; D010087:Oxides; D010655:Phenylenediamines; C530487:poly(o-phenylenediamine); C027424:manganese oxide; D002244:Carbon; D009584:Nitrogen
keywords: Manganese oxide; Nitrogen-doped carbon; Poly(o-phenylenediamine); Supercapacitor