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Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
3D-hierarchical mesoporous CuCo2S4@NiCoAl hydrotalcite/Ni foam material for high-performance supercapacitors
https://orcid.org/0000-0002-7892-2019
Abstract The hierarchical core-shell structure CuCo2S4@NiCoAl-LDH/NF composite with 3D mesoporous network structure was designed and prepared, where the NiCoAl hydrotalcite (NiCoAl-LDH) was as shell, and the CuCo2S4 nanotube array on Ni foam (NF) as core. Owing to the unique architecture and integration of respective merits from each component, the core-shell material displayed a large surface area, high conductivity, short ion diffusion path and rapid interfacial charge transmission. So, the CuCo2S4@NiCoAl-LDH/NF electrode showed superior electrochemical performances with a high specific capacitance of 938C g−1 (1876 F g−1) at 1.0 A g−1 and excellent cycling stability (retention of 91.11% after 5000 cycles at 5 A g−1). The eminent performances suggested that the CuCo2S4@NiCoAl-LDH/NF with 3D mesoporous network core-shell structure was one of the candidates as electrodes for high-performance supercapacitors.
Graphical abstract Display Omitted
Highlights CuCo2S4@NiCoAl-LDH composite with 3D mesoporous network structure and tunable component was prepared. CuCo2S4 nanotubes array on Ni foam were as supporting core and NiCoAl-LDH nanosheets with 3D honeycomb porous network as shell. The as-prepared composite exhibited a high specific capacitance of 937.5C g−1 and satisfactory cycling stability.
3D-hierarchical mesoporous CuCo2S4@NiCoAl hydrotalcite/Ni foam material for high-performance supercapacitors
https://orcid.org/0000-0002-7892-2019
Abstract The hierarchical core-shell structure CuCo2S4@NiCoAl-LDH/NF composite with 3D mesoporous network structure was designed and prepared, where the NiCoAl hydrotalcite (NiCoAl-LDH) was as shell, and the CuCo2S4 nanotube array on Ni foam (NF) as core. Owing to the unique architecture and integration of respective merits from each component, the core-shell material displayed a large surface area, high conductivity, short ion diffusion path and rapid interfacial charge transmission. So, the CuCo2S4@NiCoAl-LDH/NF electrode showed superior electrochemical performances with a high specific capacitance of 938C g−1 (1876 F g−1) at 1.0 A g−1 and excellent cycling stability (retention of 91.11% after 5000 cycles at 5 A g−1). The eminent performances suggested that the CuCo2S4@NiCoAl-LDH/NF with 3D mesoporous network core-shell structure was one of the candidates as electrodes for high-performance supercapacitors.
Graphical abstract Display Omitted
Highlights CuCo2S4@NiCoAl-LDH composite with 3D mesoporous network structure and tunable component was prepared. CuCo2S4 nanotubes array on Ni foam were as supporting core and NiCoAl-LDH nanosheets with 3D honeycomb porous network as shell. The as-prepared composite exhibited a high specific capacitance of 937.5C g−1 and satisfactory cycling stability.
3D-hierarchical mesoporous CuCo2S4@NiCoAl hydrotalcite/Ni foam material for high-performance supercapacitors
https://orcid.org/0000-0002-7892-2019
Abstract The hierarchical core-shell structure CuCo2S4@NiCoAl-LDH/NF composite with 3D mesoporous network structure was designed and prepared, where the NiCoAl hydrotalcite (NiCoAl-LDH) was as shell, and the CuCo2S4 nanotube array on Ni foam (NF) as core. Owing to the unique architecture and integration of respective merits from each component, the core-shell material displayed a large surface area, high conductivity, short ion diffusion path and rapid interfacial charge transmission. So, the CuCo2S4@NiCoAl-LDH/NF electrode showed superior electrochemical performances with a high specific capacitance of 938C g−1 (1876 F g−1) at 1.0 A g−1 and excellent cycling stability (retention of 91.11% after 5000 cycles at 5 A g−1). The eminent performances suggested that the CuCo2S4@NiCoAl-LDH/NF with 3D mesoporous network core-shell structure was one of the candidates as electrodes for high-performance supercapacitors.
Graphical abstract Display Omitted
Highlights CuCo2S4@NiCoAl-LDH composite with 3D mesoporous network structure and tunable component was prepared. CuCo2S4 nanotubes array on Ni foam were as supporting core and NiCoAl-LDH nanosheets with 3D honeycomb porous network as shell. The as-prepared composite exhibited a high specific capacitance of 937.5C g−1 and satisfactory cycling stability.
3D-hierarchical mesoporous CuCo2S4@NiCoAl hydrotalcite/Ni foam material for high-performance supercapacitors
Cao, Xiao-Ju (Autor:in) / Zeng, Hong-Yan (Autor:in) / Cao, Xi (Autor:in) / Xu, Sheng (Autor:in) / Alain, Gohi Bi Foua Claude (Autor:in) / Zou, Kai-Min (Autor:in) / Liu, Lu (Autor:in)
Applied Clay Science ; 199
25.09.2020
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Hierarchical mesoporous Ni-P@MnO2 composite for high performance supercapacitors
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