Effect of Solvothermal Temperature on Morphology and Supercapacitor Performance of Ni-MOF

Wanxin Shen; Xiaotian Guo; Huan Pang

doi:10.3390/molecules27238226

Effect of Solvothermal Temperature on Morphology and Supercapacitor Performance of Ni-MOF

Molecules. 2022 Nov 25;27(23):8226. doi: 10.3390/molecules27238226.

Authors

Wanxin Shen¹, Xiaotian Guo^{1

2}, Huan Pang¹

Affiliations

¹ School of Chemistry and Chemical Engineering, Yangzhou University, Yangzhou 225009, China.
² Interdisciplinary Materials Research Center, Institute for Advanced Study, Chengdu University, Chengdu 610106, China.

Abstract

A series of Ni-MOF materials were synthesized via a simple hydrothermal method and can be employed as electrodes for supercapacitors (SCs). Different temperatures were selected to unveil the effect of temperature on the formation, structure, and electrochemical performance of Ni-MOF-x (x = 60, 80, 100, and 120). Ni-MOF-80 possessed a larger specific surface area with a cross-network structure formed on its surface. The synthesized Ni-MOF electrode delivered a specific capacity of 30.89 mA h g^-1 when the current density reached 1 A g^-1 in a three-electrode system. The as-fabricated Ni-MOF materials could be further designed and are expected to deliver satisfactory performance in practice.

Keywords: MOF; supercapacitor; temperature.

MeSH terms

Electrodes
Temperature*

Grants and funding

This work was supported by the National Natural Science Foundation of China (U1904215), Natural Science Foundation of Jiangsu Province (BK20200044), Program for Young Changjiang Scholars of the Ministry of Education, China (Q2018270). We also acknowledge the Priority Academic Program Development of Jiangsu Higher Education Institutions and the technical support we received at the Testing Center of Yangzhou University.