Zheng, Sheng Qiang and Lim, Siew Shee and Foo, Chuan Yi and Haw, Choon Yian and Chiu, Wee Siong and Chia, Chin Hua and Khiew, Poi Sim (2022) Probing the effect of solvents on the electrochemical performance of graphene incorporated nickel-based metal organic frameworks. Journal of Electroanalytical Chemistry, 925. ISSN 1572-6657, DOI https://doi.org/10.1016/j.jelechem.2022.116860.
Full text not available from this repository.Abstract
Highly porous coordinated metal-organic frameworks (MOFs) have attracted enormous interest by virtue of their promising electrochemical performance in the application of energy storage systems. In this study, the associated electrochemical performance of nickel-based MOFs (Ni-3(OH)(2)(C8H4O4)2(H2O)(4)]center dot 2H(2)O, Ni-MOFs) synthesized in different solvent systems was systematically investigated. It is found that binary solvents with high polarity and viscosity were favorable for the formation of small-sized nanosheets. Meanwhile, graphene was incorporated into Ni-MOFs to further enhance the electrochemical performance of the nanocomposite via a facile one-pot solvothermal approach. By taking advantage of the synergistic effect between highly conductive graphene nanosheets and hierarchical Ni-MOFs, the as-synthesized Ni-MOF/graphene nanocomposites exhibited excellent electrochemical performance with significant reduction of charge transfer resistance. The deliv-ered maximum energy and power density of the nanocomposite were 14.68 Wh kg(-1) and 2,852 W kg(-1), respectively. Furthermore, a remarkable capacitance retention of 97.70 % over 10,000 cycles was achieved by the nanocomposite electrode, indicating its potential to be applied in high-performance and long cycle-life energy storage devices.
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia [PRGS/1/2016/STG06/UM/02/1], Ministry of Education, Malaysia [FRGS/1/2019/STG02/UNIM/01/1] |
| Uncontrolled Keywords: | Binary solvents; Metal -organic frameworks; Graphene; Electrochemical performance; Supercapacitor; High performance |
| Subjects: | Q Science > QC Physics Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 15 Jul 2024 01:23 |
| Last Modified: | 15 Jul 2024 01:23 |
| URI: | http://eprints.um.edu.my/id/eprint/40389 |
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