Hierarchical CuCo2O4@NiMoO4 core–shell hybrid arrays as a battery-like electrode for supercapacitors. Issue 9 (14th August 2017)

• Record Type: Journal Article
• Authors: Lin, Jinghuang; Liang, Haoyan; Jia, Henan; Chen, Shulin; Cai, Yifei; Qi, Junlei; Cao, Jian; Fei, Weidong; Feng, Jicai
• Is Part Of: Inorganic chemistry frontiers. Volume 4:Issue 9(2017)
• Page Start: 1575
• Page End: 1581
• Publication Date: 2017-08-14
• Subjects: Chemistry, Inorganic -- Periodicals; 546.05
• DOI: 10.1039/c7qi00361g
• Languages: English
• ISSNs: 2052-1553

Abstract

Abstract : Hierarchical CuCo2 O4 @NiMoO4 core–shell hybrid arrays exhibit a high specific capacitance, good rate capability and excellent cycling stability. Abstract : Herein, hierarchical CuCo2 O4 @NiMoO4 core–shell nanowire arrays were successfully synthesized on Ni foam via hydrothermal processes as a battery-like electrode. Owing to the unique core–shell structure and the synergetic effect from CuCo2 O4 and NiMoO4, the resulting CuCo2 O4 @NiMoO4 core–shell arrays exhibit a high specific capacitance of 2207 F g −1 at 1.25 A g −1 and good rate capability with only about 4.4% capacitance loss after cycling tests. Furthermore, we assemble the corresponding asymmetric supercapacitor using CuCo2 O4 @NiMoO4 (positive electrode) and activated carbon (negative electrode), which delivers a high energy density (about 40 W h kg −1 ) and good cycle stability. Thereby, these electrochemical performances demonstrated that as-fabricated CuCo2 O4 @NiMoO4 core–shell arrays are promising candidates as electrodes for high-performance supercapacitors.