Fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application
In this study, cobalt-based metal-organic framework (MOF) powder was prepared via the solvothermal method using 2,6-naphthalenedicarboxylic acid (NDC) as the organic linker and N,N-dimethylformamide (DMF) as the solvent. The thermal decomposition of the pristine cobalt-based MOF sample (CN-R) was id...
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my.um.eprints.340502022-06-21T08:41:40Z http://eprints.um.edu.my/34050/ Fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application Imaduddin, Ibnu Syafiq Majid, Siti Rohana Aziz, Shujahadeen B. Brevik, Iver Yusuf, Siti Nor Farhana Brza, M. A. Saeed, Salah R. Kadir, Mohd Fakhrul Zamani Abdul QC Physics QD Chemistry In this study, cobalt-based metal-organic framework (MOF) powder was prepared via the solvothermal method using 2,6-naphthalenedicarboxylic acid (NDC) as the organic linker and N,N-dimethylformamide (DMF) as the solvent. The thermal decomposition of the pristine cobalt-based MOF sample (CN-R) was identified using a thermogravimetric examination (TGA). The morphology and structure of the MOFs were modified during the pyrolysis process at three different temperatures: 300, 400, and 500 degrees C, which labeled as CN-300, CN-400, and CN-500, respectively. The results were evidenced via field-emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). The crystallite size of all samples was calculated using Scherrer's equation. The smallest crystallite size of 7.77 nm was calculated for the CN-300 sample. Fourier transform infrared spectroscopy (FTIR) spectra were acquired for all the samples. The graphical study of the cyclic voltammogram (CV) gave the reduction and oxidation peaks. The charge transfer resistance and ionic conductivity were studied using electrical impedance spectroscopy (EIS). The galvanostatic charge-discharge (GCD) responses of all samples were analyzed. The relatively high specific capacitance of 229 F g(-1) at 0.5 A g(-1) was achieved in the sample CN-300, whereby 110% of capacitance was retained after 5000 cycles. These findings highlighted the durability of the electrode materials at high current densities over a long cycle. MDPI 2021-02 Article PeerReviewed Imaduddin, Ibnu Syafiq and Majid, Siti Rohana and Aziz, Shujahadeen B. and Brevik, Iver and Yusuf, Siti Nor Farhana and Brza, M. A. and Saeed, Salah R. and Kadir, Mohd Fakhrul Zamani Abdul (2021) Fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application. Materials, 14 (3). ISSN 1996-1944, DOI https://doi.org/10.3390/ma14030573 <https://doi.org/10.3390/ma14030573>. 10.3390/ma14030573 |
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QC Physics QD Chemistry Imaduddin, Ibnu Syafiq Majid, Siti Rohana Aziz, Shujahadeen B. Brevik, Iver Yusuf, Siti Nor Farhana Brza, M. A. Saeed, Salah R. Kadir, Mohd Fakhrul Zamani Abdul Fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application |
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In this study, cobalt-based metal-organic framework (MOF) powder was prepared via the solvothermal method using 2,6-naphthalenedicarboxylic acid (NDC) as the organic linker and N,N-dimethylformamide (DMF) as the solvent. The thermal decomposition of the pristine cobalt-based MOF sample (CN-R) was identified using a thermogravimetric examination (TGA). The morphology and structure of the MOFs were modified during the pyrolysis process at three different temperatures: 300, 400, and 500 degrees C, which labeled as CN-300, CN-400, and CN-500, respectively. The results were evidenced via field-emission scanning electron microscopy (FESEM), energy dispersive X-ray spectroscopy (EDX) and X-ray diffraction (XRD). The crystallite size of all samples was calculated using Scherrer's equation. The smallest crystallite size of 7.77 nm was calculated for the CN-300 sample. Fourier transform infrared spectroscopy (FTIR) spectra were acquired for all the samples. The graphical study of the cyclic voltammogram (CV) gave the reduction and oxidation peaks. The charge transfer resistance and ionic conductivity were studied using electrical impedance spectroscopy (EIS). The galvanostatic charge-discharge (GCD) responses of all samples were analyzed. The relatively high specific capacitance of 229 F g(-1) at 0.5 A g(-1) was achieved in the sample CN-300, whereby 110% of capacitance was retained after 5000 cycles. These findings highlighted the durability of the electrode materials at high current densities over a long cycle. |
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author |
Imaduddin, Ibnu Syafiq Majid, Siti Rohana Aziz, Shujahadeen B. Brevik, Iver Yusuf, Siti Nor Farhana Brza, M. A. Saeed, Salah R. Kadir, Mohd Fakhrul Zamani Abdul |
author_facet |
Imaduddin, Ibnu Syafiq Majid, Siti Rohana Aziz, Shujahadeen B. Brevik, Iver Yusuf, Siti Nor Farhana Brza, M. A. Saeed, Salah R. Kadir, Mohd Fakhrul Zamani Abdul |
author_sort |
Imaduddin, Ibnu Syafiq |
title |
Fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application |
title_short |
Fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application |
title_full |
Fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application |
title_fullStr |
Fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application |
title_full_unstemmed |
Fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application |
title_sort |
fabrication of co3o4 from cobalt/2,6-napthalenedicarboxylic acid metal-organic framework as electrode for supercapacitor application |
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MDPI |
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2021 |
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http://eprints.um.edu.my/34050/ |
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1738510705659740160 |
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13.18916 |