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Facile Synthesis of Hierarchical Mesoporous Honeycomb-like NiO for Aqueous Asymmetric Supercapacitors.
ACS Appl Mater Interfaces 2015; 7(36):19930-40AA

Abstract

Three-dimensional (3D) hierarchical nanostructures have been demonstrated as one of the most ideal electrode materials in energy storage systems due to the synergistic combination of the advantages of both nanostructures and microstructures. In this study, the honeycomb-like mesoporous NiO microspheres as promising cathode materials for supercapacitors have been achieved using a hydrothermal reaction, followed by an annealing process. The electrochemical tests demonstrate the highest specific capacitance of 1250 F g(-1) at 1 A g(-1). Even at 5 A g(-1), a specific capacitance of 945 F g(-1) with 88.4% retention after 3500 cycles was obtained. In addition, the 3D porous graphene (reduced graphene oxide, rGO) has been prepared as an anode material for supercapacitors, which displays a good capacitance performance of 302 F g(-1) at 1 A g(-1). An asymmetric supercapacitor has been successfully fabricated based on the honeycomb-like NiO and rGO. The asymmetric supercapacitor achieves a remarkable performance with a specific capacitance of 74.4 F g(-1), an energy density of 23.25 Wh kg(-1), and a power density of 9.3 kW kg(-1), which is able to light up a light-emitting diode.

Authors+Show Affiliations

College of Materials Science and Engineering, Taiyuan University of Technology , Taiyuan, Shanxi 030024, P. R. China.College of Materials Science and Engineering, Taiyuan University of Technology , Taiyuan, Shanxi 030024, P. R. China.Key Laboratory of Colloid & Interface Chemistry, Ministry of Education and School of Chemistry and Chemical Engineering, Shandong University , Jinan, Shandong 235000, P. R. China.College of Materials Science and Engineering, Taiyuan University of Technology , Taiyuan, Shanxi 030024, P. R. China.College of Materials Science and Engineering, Taiyuan University of Technology , Taiyuan, Shanxi 030024, P. R. China.College of Materials Science and Engineering, Taiyuan University of Technology , Taiyuan, Shanxi 030024, P. R. China. School of Chemistry and Chemical Engineering, Lvliang College , Lishi Shanxi 033000, China.

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

26301430

Citation

Ren, Xiaochuan, et al. "Facile Synthesis of Hierarchical Mesoporous Honeycomb-like NiO for Aqueous Asymmetric Supercapacitors." ACS Applied Materials & Interfaces, vol. 7, no. 36, 2015, pp. 19930-40.
Ren X, Guo C, Xu L, et al. Facile Synthesis of Hierarchical Mesoporous Honeycomb-like NiO for Aqueous Asymmetric Supercapacitors. ACS Appl Mater Interfaces. 2015;7(36):19930-40.
Ren, X., Guo, C., Xu, L., Li, T., Hou, L., & Wei, Y. (2015). Facile Synthesis of Hierarchical Mesoporous Honeycomb-like NiO for Aqueous Asymmetric Supercapacitors. ACS Applied Materials & Interfaces, 7(36), pp. 19930-40. doi:10.1021/acsami.5b04094.
Ren X, et al. Facile Synthesis of Hierarchical Mesoporous Honeycomb-like NiO for Aqueous Asymmetric Supercapacitors. ACS Appl Mater Interfaces. 2015 Sep 16;7(36):19930-40. PubMed PMID: 26301430.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Facile Synthesis of Hierarchical Mesoporous Honeycomb-like NiO for Aqueous Asymmetric Supercapacitors. AU - Ren,Xiaochuan, AU - Guo,Chunli, AU - Xu,Liqiang, AU - Li,Taotao, AU - Hou,Lifeng, AU - Wei,Yinghui, Y1 - 2015/09/01/ PY - 2015/8/25/entrez PY - 2015/8/25/pubmed PY - 2015/8/25/medline KW - 3D porous graphene KW - NiO KW - asymmetric supercapacitor KW - mesopores KW - self-assembling SP - 19930 EP - 40 JF - ACS applied materials & interfaces JO - ACS Appl Mater Interfaces VL - 7 IS - 36 N2 - Three-dimensional (3D) hierarchical nanostructures have been demonstrated as one of the most ideal electrode materials in energy storage systems due to the synergistic combination of the advantages of both nanostructures and microstructures. In this study, the honeycomb-like mesoporous NiO microspheres as promising cathode materials for supercapacitors have been achieved using a hydrothermal reaction, followed by an annealing process. The electrochemical tests demonstrate the highest specific capacitance of 1250 F g(-1) at 1 A g(-1). Even at 5 A g(-1), a specific capacitance of 945 F g(-1) with 88.4% retention after 3500 cycles was obtained. In addition, the 3D porous graphene (reduced graphene oxide, rGO) has been prepared as an anode material for supercapacitors, which displays a good capacitance performance of 302 F g(-1) at 1 A g(-1). An asymmetric supercapacitor has been successfully fabricated based on the honeycomb-like NiO and rGO. The asymmetric supercapacitor achieves a remarkable performance with a specific capacitance of 74.4 F g(-1), an energy density of 23.25 Wh kg(-1), and a power density of 9.3 kW kg(-1), which is able to light up a light-emitting diode. SN - 1944-8252 UR - https://www.unboundmedicine.com/medline/citation/26301430/Facile_Synthesis_of_Hierarchical_Mesoporous_Honeycomb_like_NiO_for_Aqueous_Asymmetric_Supercapacitors_ L2 - https://dx.doi.org/10.1021/acsami.5b04094 DB - PRIME DP - Unbound Medicine ER -