Construction of layered hierarchical CoMoO 4 nanostructured arrays for supercapacitors with enhanced areal capacitance | Zendy

Xiao Hu | Zendy; Hai Wang | Zendy; Sanmei Jin | Zendy; Heng Wang | Zendy

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Construction of layered hierarchical CoMoO ₄ nanostructured arrays for supercapacitors with enhanced areal capacitance

Author(s) -

Xiao Hu,

Hai Wang,

Sanmei Jin,

Heng Wang

Publication year - 2019

Publication title -

royal society open science

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.84

H-Index - 51

ISSN - 2054-5703

DOI - 10.1098/rsos.181592

Subject(s) - capacitance , supercapacitor , materials science , annealing (glass) , nanotechnology , nano , hydrothermal circulation , chemical engineering , composite material , electrode , chemistry , engineering

Layered hierarchical CoMoO 4 nano-structured arrays grown on nickel foam were designed and synthesized by a two-step hydrothermal method following by annealing. With the increase in the nearly three times loading mass of active materials, the specific capacitance of the layered hierarchical CoMoO 4 nano-structured arrays only shows a slight loss compared with the single-layer CoMoO 4 nano-structured arrays, which dramatically improved the areal capacitance from 2.47 to 6.79 F cm −2 . Also, the layered hierarchical CoMoO 4 nano-structured arrays showed 94.8% capacitance retention after 2500 cycles, which is mainly due to the well-designed layered hierarchical structure and good conductivity.

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