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In situ synthesis of Ag/NiO derived from hetero-metallic MOF for supercapacitor application

Lin-Xia Zhou, Yuan-Yuan Yang, Hong-Lin Zhu, and Yue-Qing Zheng

Joint Laboratory for Environmental Test and Photocatalytic Research of Ningbo University-Zhejiang Zhonghao Applied Engineering Technology Institute Co., Ltd, Ningbo University, Ningbo, People’s Republic of China

 

E-mail: zhengyueqing@nbu.edu.cn

Received: 11 June 2020  Accepted: 12 November 2020

Abstract:

Nanocomposite metal oxides have been attracted great attention in the electrode material of supercapacitor. Herein, a novel Ag/Ni hetero-metallic complex with the hamburger-like structure was prepared, which was then calcined to form Ag/NiO nanocomposite via in-situ preparation. The in-situ formed Ag/NiO exhibits a very high capacitance of 1480 F g −1 at a current density of 0.6 A g−1 in 1 M KOH solution, and the cycling stability was retained about 85% after 3000 cycles with the current of 5 A g−1. The results showed that the in-situ formed Ag/NiO derived from hetero-metallic MOF possess high specific capacitance, which could provide a new effective strategy to improve the conductivity of metal oxides nanocomposite.

Keywords: Supercapacitor; Metal–organic frameworks; Nickel oxide; Ag doped; Specific capacitance

Full paper is available at www.springerlink.com.

DOI: 10.1007/s11696-020-01431-8

 

Chemical Papers 75 (5) 1795–1807 (2021)

Monday, September 26, 2022

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