Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS<sub>2</sub> Nanoflower
The fascinating features of 2D nanomaterials for various applications have prompted increasing research into single and few-layer metal dichalcogenides nanosheets using improved nanofabrication and characterization techniques. MoS<sub>2</sub> has recently been intensively examined among...
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MDPI AG
2022-01-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/12/3/490 |
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| author | Ismaila T. Bello Kabir O. Otun Gayi Nyongombe Oluwaseun Adedokun Guy L. Kabongo Mokhotjwa S. Dhlamini |
| author_facet | Ismaila T. Bello Kabir O. Otun Gayi Nyongombe Oluwaseun Adedokun Guy L. Kabongo Mokhotjwa S. Dhlamini |
| author_sort | Ismaila T. Bello |
| collection | DOAJ |
| description | The fascinating features of 2D nanomaterials for various applications have prompted increasing research into single and few-layer metal dichalcogenides nanosheets using improved nanofabrication and characterization techniques. MoS<sub>2</sub> has recently been intensively examined among layered metal dichalcogenides and other diverse transition metal-based materials, that have previously been studied in various applications. In this research, we report mixed-phase Mn-doped MoS<sub>2</sub> nanoflowers for supercapacitor performance studies. The confirmation of the successfully prepared Mn-doped MoS<sub>2</sub> nanoflowers was characterized by XRD, SEM-EDS, RAMAN, and BET research techniques. The mixed-phase of the as-synthesized electrode material was confirmed by the structural changes observed in the XRD and RAMAN studies. The surface area from the BET measurement was calculated to be 46.0628 m<sup>2</sup>/g, and the adsorption average pore size of the electrode material was 11.26607 nm. The electrochemical performance of the Mn-doped MoS<sub>2</sub> electrode material showed a pseudo-capacitive behavior, with a specific capacitance of 70.37 Fg<sup>−1</sup>, and with a corresponding energy density of 3.14 Whkg<sup>−1</sup> and a power density of 4346.35 Wkg<sup>−1</sup>. The performance of this metal-doped MoS<sub>2</sub>-based supercapacitor device can be attributed to its mixed phase, which requires further optimization in future works. |
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| language | English |
| last_indexed | 2024-03-09T23:24:03Z |
| publishDate | 2022-01-01 |
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| series | Nanomaterials |
| spelling | doaj.art-a3e14fee7959475e919b1158424b0e3f2023-11-23T17:21:38ZengMDPI AGNanomaterials2079-49912022-01-0112349010.3390/nano12030490Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS<sub>2</sub> NanoflowerIsmaila T. Bello0Kabir O. Otun1Gayi Nyongombe2Oluwaseun Adedokun3Guy L. Kabongo4Mokhotjwa S. Dhlamini5Department of Physics, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1710, South AfricaInstitute for the Development of Energy for African Sustainability, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1710, South AfricaDepartment of Physics, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1710, South AfricaDepartment of Pure and Applied Physics, Ladoke Akintola University of Technology, Ogbomoso 4000, NigeriaDepartment of Physics, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1710, South AfricaDepartment of Physics, College of Science, Engineering and Technology, University of South Africa, Johannesburg 1710, South AfricaThe fascinating features of 2D nanomaterials for various applications have prompted increasing research into single and few-layer metal dichalcogenides nanosheets using improved nanofabrication and characterization techniques. MoS<sub>2</sub> has recently been intensively examined among layered metal dichalcogenides and other diverse transition metal-based materials, that have previously been studied in various applications. In this research, we report mixed-phase Mn-doped MoS<sub>2</sub> nanoflowers for supercapacitor performance studies. The confirmation of the successfully prepared Mn-doped MoS<sub>2</sub> nanoflowers was characterized by XRD, SEM-EDS, RAMAN, and BET research techniques. The mixed-phase of the as-synthesized electrode material was confirmed by the structural changes observed in the XRD and RAMAN studies. The surface area from the BET measurement was calculated to be 46.0628 m<sup>2</sup>/g, and the adsorption average pore size of the electrode material was 11.26607 nm. The electrochemical performance of the Mn-doped MoS<sub>2</sub> electrode material showed a pseudo-capacitive behavior, with a specific capacitance of 70.37 Fg<sup>−1</sup>, and with a corresponding energy density of 3.14 Whkg<sup>−1</sup> and a power density of 4346.35 Wkg<sup>−1</sup>. The performance of this metal-doped MoS<sub>2</sub>-based supercapacitor device can be attributed to its mixed phase, which requires further optimization in future works.https://www.mdpi.com/2079-4991/12/3/490supercapacitorsMn-doped MoS<sub>2</sub> nanoflowerselectrode materialsspecific capacitanceenergy densitypower density |
| spellingShingle | Ismaila T. Bello Kabir O. Otun Gayi Nyongombe Oluwaseun Adedokun Guy L. Kabongo Mokhotjwa S. Dhlamini Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS<sub>2</sub> Nanoflower Nanomaterials supercapacitors Mn-doped MoS<sub>2</sub> nanoflowers electrode materials specific capacitance energy density power density |
| title | Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS<sub>2</sub> Nanoflower |
| title_full | Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS<sub>2</sub> Nanoflower |
| title_fullStr | Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS<sub>2</sub> Nanoflower |
| title_full_unstemmed | Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS<sub>2</sub> Nanoflower |
| title_short | Synthesis, Characterization, and Supercapacitor Performance of a Mixed-Phase Mn-Doped MoS<sub>2</sub> Nanoflower |
| title_sort | synthesis characterization and supercapacitor performance of a mixed phase mn doped mos sub 2 sub nanoflower |
| topic | supercapacitors Mn-doped MoS<sub>2</sub> nanoflowers electrode materials specific capacitance energy density power density |
| url | https://www.mdpi.com/2079-4991/12/3/490 |
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