title: Hierarchically structured Co₃O₄@Pt@MnO₂ nanowire arrays for high-performance supercapacitors.
abstract: Here we proposed a novel architectural design of a ternary MnO2-based electrode - a hierarchical Co3O4@Pt@MnO2 core-shell-shell structure, where the complemental features of the three key components (a well-defined Co3O4 nanowire array on the conductive Ti substrate, an ultrathin layer of small Pt nanoparticles, and a thin layer of MnO2 nanoflakes) are strategically combined into a single entity to synergize and construct a high-performance electrode for supercapacitors. Owing to the high conductivity of the well-defined Co3O4 nanowire arrays, in which the conductivity was further enhanced by a thin metal (Pt) coating layer, in combination with the large surface area provided by the small MnO2 nanoflakes, the as-fabricated Co3O4@Pt@MnO2 nanowire arrays have exhibited high specific capacitances, good rate capability, and excellent cycling stability. The architectural design demonstrated in this study provides a new approach to fabricate high-performance MnO2-based nanowire arrays for constructing next-generation supercapacitors.
authors.affiliation: 1] School of Materials Science and Engineering, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing 210094, China [2] Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Xiaolingwei 200, Nanjing 210094, China.
authors.forename: Hui
authors.initials: H
authors.lastname: Xia
authors.forename: Dongdong
authors.initials: D
authors.lastname: Zhu
authors.forename: Zhentao
authors.initials: Z
authors.lastname: Luo
authors.forename: Yue
authors.initials: Y
authors.lastname: Yu
authors.forename: Xiaoqin
authors.initials: X
authors.lastname: Shi
authors.forename: Guoliang
authors.initials: G
authors.lastname: Yuan
authors.forename: Jianping
authors.initials: J
authors.lastname: Xie