Electrospun Co3O4 nanofibers as potential material for enhanced supercapacitors and chemo-sensor applications
In this paper, highly dense and defined Co3O4 nanofibers were prepared by electrospinning method followed by controlled oxidation using polyvinylpyrrolidone (PVP) and CoCl2 as precursors. For the fabrication of effective electrochemical sensors and supercapacitors, the prepared Co3O4 nanofibers were...
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| Format: | Article |
| Language: | English |
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Elsevier
2022-11-01
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| Series: | Journal of Materials Research and Technology |
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| Online Access: | http://www.sciencedirect.com/science/article/pii/S2238785422018014 |
| _version_ | 1828165929963356160 |
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| author | Ahmad Umar M. Shaheer Akhtar Ahmed A. Ibrahim Hassan Algadi Mohsen A.M. Alhamami Faheem Ahmed Moaaed Motlak Sheikh Akbar |
| author_facet | Ahmad Umar M. Shaheer Akhtar Ahmed A. Ibrahim Hassan Algadi Mohsen A.M. Alhamami Faheem Ahmed Moaaed Motlak Sheikh Akbar |
| author_sort | Ahmad Umar |
| collection | DOAJ |
| description | In this paper, highly dense and defined Co3O4 nanofibers were prepared by electrospinning method followed by controlled oxidation using polyvinylpyrrolidone (PVP) and CoCl2 as precursors. For the fabrication of effective electrochemical sensors and supercapacitors, the prepared Co3O4 nanofibers were used as electro-active electrodes. The prepared Co3O4 nanofibers were morphologically investigated by field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) which confirmed the formation of highly dense and well-defined fibrous morphology. The X-ray diffraction (XRD) and elemental analysis demonstrated the typical crystalline cubic phase Co3O4 with appropriate stoichiometric element ratio. The supercapacitor with prepared Co3O4 nanofibers based electrode has an excellent cycle stability and a considerably higher specific capacitance of 419 C/g at a current density of 0.5 A/g. Interestingly, the fabricated supercapacitor device keeps 87% capacitance after 5000 charge/discharge cycles. For 2-butanone chemical sensing, the prepared Co3O4 nanofibers based electrode presents a reasonable sensitivity of 90.7 mAμM−1cm−2 and linear dynamics of 10–200 μM with good LOD of ∼5.8 μM and regression coefficient (R) = ∼0.97407. Thus, the prepared Co3O4 nanofibers with highly porous surface would pave the direction to the manufacturing of efficient energy storage and electrochemical sensing materials. |
| first_indexed | 2024-04-12T01:52:10Z |
| format | Article |
| id | doaj.art-ed9b73c235e543abb7128d104dd0ee94 |
| institution | Directory Open Access Journal |
| issn | 2238-7854 |
| language | English |
| last_indexed | 2024-04-12T01:52:10Z |
| publishDate | 2022-11-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Journal of Materials Research and Technology |
| spelling | doaj.art-ed9b73c235e543abb7128d104dd0ee942022-12-22T03:52:54ZengElsevierJournal of Materials Research and Technology2238-78542022-11-012150185031Electrospun Co3O4 nanofibers as potential material for enhanced supercapacitors and chemo-sensor applicationsAhmad Umar0M. Shaheer Akhtar1Ahmed A. Ibrahim2Hassan Algadi3Mohsen A.M. Alhamami4Faheem Ahmed5Moaaed Motlak6Sheikh Akbar7Department of Chemistry, College of Science and Arts, Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Saudi Arabia; Department of Materials Science and Engineering, The Ohio State University, Columbus, 43210 OH, USA; Corresponding author.New & Renewable Energy Material Development Center (NewREC), Jeonbuk National University, Jeonbuk, Republic of Korea; Graduate School of Integrated Energy-AI, Jeonbuk National University, Jeonju, 54896, Republic of Korea; Corresponding author.Department of Chemistry, College of Science and Arts, Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Saudi ArabiaDepartment of Electrical Engineering, College of Engineering, Najran University, Najran, 11001, Saudi ArabiaDepartment of Chemistry, College of Science and Arts, Promising Centre for Sensors and Electronic Devices (PCSED), Najran University, Najran, 11001, Saudi ArabiaDepartment of Physics, College of Science, King Faisal University, P.O. Box-400, Al-Ahsa 31982, Saudi ArabiaDepartment of Physics, College of Science, University of Anbar, Anbar, IraqDepartment of Materials Science and Engineering, The Ohio State University, Columbus, 43210 OH, USAIn this paper, highly dense and defined Co3O4 nanofibers were prepared by electrospinning method followed by controlled oxidation using polyvinylpyrrolidone (PVP) and CoCl2 as precursors. For the fabrication of effective electrochemical sensors and supercapacitors, the prepared Co3O4 nanofibers were used as electro-active electrodes. The prepared Co3O4 nanofibers were morphologically investigated by field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) which confirmed the formation of highly dense and well-defined fibrous morphology. The X-ray diffraction (XRD) and elemental analysis demonstrated the typical crystalline cubic phase Co3O4 with appropriate stoichiometric element ratio. The supercapacitor with prepared Co3O4 nanofibers based electrode has an excellent cycle stability and a considerably higher specific capacitance of 419 C/g at a current density of 0.5 A/g. Interestingly, the fabricated supercapacitor device keeps 87% capacitance after 5000 charge/discharge cycles. For 2-butanone chemical sensing, the prepared Co3O4 nanofibers based electrode presents a reasonable sensitivity of 90.7 mAμM−1cm−2 and linear dynamics of 10–200 μM with good LOD of ∼5.8 μM and regression coefficient (R) = ∼0.97407. Thus, the prepared Co3O4 nanofibers with highly porous surface would pave the direction to the manufacturing of efficient energy storage and electrochemical sensing materials.http://www.sciencedirect.com/science/article/pii/S2238785422018014Co3O4 nanofibersElectrospinningElectrochemicalChemo-sensorSupercapacitors |
| spellingShingle | Ahmad Umar M. Shaheer Akhtar Ahmed A. Ibrahim Hassan Algadi Mohsen A.M. Alhamami Faheem Ahmed Moaaed Motlak Sheikh Akbar Electrospun Co3O4 nanofibers as potential material for enhanced supercapacitors and chemo-sensor applications Journal of Materials Research and Technology Co3O4 nanofibers Electrospinning Electrochemical Chemo-sensor Supercapacitors |
| title | Electrospun Co3O4 nanofibers as potential material for enhanced supercapacitors and chemo-sensor applications |
| title_full | Electrospun Co3O4 nanofibers as potential material for enhanced supercapacitors and chemo-sensor applications |
| title_fullStr | Electrospun Co3O4 nanofibers as potential material for enhanced supercapacitors and chemo-sensor applications |
| title_full_unstemmed | Electrospun Co3O4 nanofibers as potential material for enhanced supercapacitors and chemo-sensor applications |
| title_short | Electrospun Co3O4 nanofibers as potential material for enhanced supercapacitors and chemo-sensor applications |
| title_sort | electrospun co3o4 nanofibers as potential material for enhanced supercapacitors and chemo sensor applications |
| topic | Co3O4 nanofibers Electrospinning Electrochemical Chemo-sensor Supercapacitors |
| url | http://www.sciencedirect.com/science/article/pii/S2238785422018014 |
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