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 (2023) Solvothermal synthesis of nanostructured nickel-based metal-organic frameworks (Ni-MOFs) with enhanced electrochemical performance for symmetric supercapacitors. Journal of Materials Science, 58 (29). pp. 11894-11913. ISSN 0022-2461, DOI https://doi.org/10.1007/s10853-023-08747-2.
Full text not available from this repository.Abstract
Metal-organic frameworks (MOFs) have been studied in a wide range of applications due to their high porosity, large specific surface areas and tunable structures. Nonetheless, the synthesis environment such as compositional and processing parameters has a crucial role to play in the structural and morphological properties. In this study, the impact of temperature and time on the morphology and electrochemical performance of nickel-based MOFs (Ni-MOFs) were systematically investigated. In particular, Ni-MOF nanomaterials were synthesized at different solvothermal temperature ranges: (i) 100, 120 and 140 degrees C (below the boiling point of DMF, similar to 153 degrees C); (ii) 160 and 180 degrees C (above the boiling point of DMF but below the boiling point of ethylene glycol (EG), similar to 197.3 degrees C) and (iii) 200 degrees C (above the boiling point of EG). Meanwhile, the solvothermal reaction time ranged from 8 to 32 h. It was found that the average size of Ni-MOF nanosheets tended to decrease with increasing solvothermal temperature. However, the crystallinity of Ni-MOF indicated a direct correlation with synthesis temperature. The solvothermal time only had a slight influence on the resultant morphologies. Noteworthily, an excellent energy density of 22.44 Wh kg(-1) and a superior cyclic durability of 118% over 10,000 cycles were achieved by the nanostructures synthesized at 160 degrees C, which has been used in the symmetrical supercapacitor electrodes in an environmental-friendly aqueous electrolyte. The results showed that such Ni-MOF nanomaterials can be used as a potential symmetrical electrode in the application of SCs. GRAPHICS] .
| Item Type: | Article |
|---|---|
| Funders: | Ministry of Education, Malaysia (PRGS/1/2016/STG06/UM/02/1) ; (FRGS/1/2019/STG02/UNIM/01/1) |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry |
| Divisions: | Faculty of Science > Department of Physics |
| Depositing User: | Ms. Juhaida Abd Rahim |
| Date Deposited: | 18 Aug 2025 02:48 |
| Last Modified: | 18 Aug 2025 02:48 |
| URI: | http://eprints.um.edu.my/id/eprint/50709 |
Actions (login required)
 |
View Item |
