title: High nitrogen-doped carbon/Mn3O4 hybrids synthesized from nitrogen-rich coordination polymer particles as supercapacitor electrodes.
abstract: High nitrogen-doped carbon/Mn3O4 composites were synthesized by annealing nitrogen-rich Mn-based coordination polymer particles, and investigated by electron microscopy, X-ray diffraction, and electrochemical experiments. To assess the performance of high nitrogen-doped hybrids as electrode materials in supercapacitors, cyclic voltammetry and galvanostatic charging-discharging measurements are performed. High nitrogen-doped carbon/Mn3O4 composites are charged and discharged faster and have higher capacitance than carbon/Mn3O4 nanostructures with low nitrogen amounts and other reported ones. The capacitance of the high nitrogen-doped carbon/Mn3O4 is 94% retained after 1000 cycles at a constant current. These improvements can be attributed to the nitrogen-doped carbon matrix, which promotes fast Faradaic charging and discharging of the Mn3O4 motifs. The nitrogen-doped carbon/Mn3O4 composites could be a promising candidate material for a high-capacity, low-cost, and environmentally friendly electrode for supercapacitors.
authors.affiliation: Department of Chemistry, College of Science, Nanjing Agricultural University, Nanjing 210095, P. R. China. wangkb@njau.edu.cn.
authors.forename: Kuaibing
authors.initials: K
authors.lastname: Wang
authors.forename: Xiaobo
authors.initials: X
authors.lastname: Shi
authors.forename: Aiming
authors.initials: A
authors.lastname: Lu
authors.forename: Xiaoyan
authors.initials: X
authors.lastname: Ma
authors.forename: Zhiyang
authors.initials: Z
authors.lastname: Zhang
authors.forename: Yanan
authors.initials: Y
authors.lastname: Lu
authors.forename: Hongju
authors.initials: H
authors.lastname: Wang