Ag doped Co3O4 nanoparticles for high-performance supercapacitor application
Ag doped Co3O4 nanoparticles (NPs) were synthesized via a co-precipitation method changing the concentration of Ag. The crystal structure, morphology, surface area, functional group, optical band gap, and thermal property were investigated by XRD, SEM, BET, FTIR, UV–Vis, and TGA/DTA techniques. The...
| Main Authors: | , , , , , , , , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Elsevier
2023-02-01
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| Series: | Heliyon |
| Subjects: | |
| Online Access: | http://www.sciencedirect.com/science/article/pii/S2405844023004930 |
| _version_ | 1828000877663748096 |
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| author | Asab Fetene Alem Ababay Ketema Worku Delele Worku Ayele Tessera Alemneh Wubieneh Alebel abebaw Teshager Tadele mihret kndie Bimrew Tamrat Admasu Minbale Admas Teshager Addisu Alemayehu Asege Mehary Dagnew Ambaw Misganaw Alemu Zeleke Alemayehu Kifle Shibesh Temesgen Atnafu Yemata |
| author_facet | Asab Fetene Alem Ababay Ketema Worku Delele Worku Ayele Tessera Alemneh Wubieneh Alebel abebaw Teshager Tadele mihret kndie Bimrew Tamrat Admasu Minbale Admas Teshager Addisu Alemayehu Asege Mehary Dagnew Ambaw Misganaw Alemu Zeleke Alemayehu Kifle Shibesh Temesgen Atnafu Yemata |
| author_sort | Asab Fetene Alem |
| collection | DOAJ |
| description | Ag doped Co3O4 nanoparticles (NPs) were synthesized via a co-precipitation method changing the concentration of Ag. The crystal structure, morphology, surface area, functional group, optical band gap, and thermal property were investigated by XRD, SEM, BET, FTIR, UV–Vis, and TGA/DTA techniques. The XRD results showed the formation of single-cubic Co3O4 nanostructured materials with an average crystal size of 19.37 nm and 12.98 nm for pristine Co3O4 and 0.25 M Ag-doped Co3O4 NPs. Morphological studies showed that pristine Co3O4 and 0.25 M Ag-doped Co3O4 NPs having a porous structure with small spherical grains, porous structures with sponge-like structures, and loosely packed porous structures, respectively. The pristine and 0.25 M Ag-doped Co3O4 NPs showed BET surface areas of 53.06 m2/g, and 407.33 m2/g, respectively. The band gap energy of Co3O4 NPs were 2.96 eV, with additional sub-bandgap energy of 1.95 eV. Additionally, it was discovered that the band gap energies of 0.25 M Ag-doped Co3O4 NPs ranged from 2.2 to 2.75 eV, with an extra sub-band with energies ranging from 1.43 to 1.94 eV for all as-prepared samples. The Ag-doped Co3O4 as prepared samples show improved thermal properties due to the doping effect of silver. The CV test confirmed that the 0.25 M Ag-doped Co3O4 NPs exhibited the highest specific capacitance value of 992.7 F/g at 5 mV/s in a 0.1 M KOH electrolyte solution. The energy density and power density of 0.25 M Ag-doped Co3O4 NPs were 27.9 W h/kg and 3816.1 W/kg, respectively. |
| first_indexed | 2024-04-10T06:20:58Z |
| format | Article |
| id | doaj.art-c7cbf21c6fbf43608dd079a1776a5331 |
| institution | Directory Open Access Journal |
| issn | 2405-8440 |
| language | English |
| last_indexed | 2024-04-10T06:20:58Z |
| publishDate | 2023-02-01 |
| publisher | Elsevier |
| record_format | Article |
| series | Heliyon |
| spelling | doaj.art-c7cbf21c6fbf43608dd079a1776a53312023-03-02T05:00:49ZengElsevierHeliyon2405-84402023-02-0192e13286Ag doped Co3O4 nanoparticles for high-performance supercapacitor applicationAsab Fetene Alem0Ababay Ketema Worku1Delele Worku Ayele2Tessera Alemneh Wubieneh3Alebel abebaw Teshager4 Tadele mihret kndie5Bimrew Tamrat Admasu6Minbale Admas Teshager7Addisu Alemayehu Asege8Mehary Dagnew Ambaw9Misganaw Alemu Zeleke10Alemayehu Kifle Shibesh11Temesgen Atnafu Yemata12Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, EthiopiaBahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia; Corresponding author.Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia; Department of Chemistry, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, Ethiopia; Corresponding author. Bahir Dar Energy Center, Bahir Dar Institute of Technology, Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia.School of Materials Science and Engineering, Bahir Dar University, P.O. Box 79, Bahir Dar, EthiopiaFaculty of Chemical and Food Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, EthiopiaFaculty of Chemical and Food Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, EthiopiaFaculty of Mechanical Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, EthiopiaDepartment of Chemistry, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, EthiopiaSchool of Materials Science and Engineering, Bahir Dar University, P.O. Box 79, Bahir Dar, EthiopiaDepartment of Industrial Chemistry, College of Science, Bahir Dar University, P.O. Box 79, Bahir Dar, EthiopiaSchool of Materials Science and Engineering, Bahir Dar University, P.O. Box 79, Bahir Dar, EthiopiaFaculty of Chemical and Food Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, EthiopiaFaculty of Chemical and Food Engineering, Bahir Dar Institute of Technology-Bahir Dar University, P.O. Box 26, Bahir Dar, Ethiopia; Corresponding author.Ag doped Co3O4 nanoparticles (NPs) were synthesized via a co-precipitation method changing the concentration of Ag. The crystal structure, morphology, surface area, functional group, optical band gap, and thermal property were investigated by XRD, SEM, BET, FTIR, UV–Vis, and TGA/DTA techniques. The XRD results showed the formation of single-cubic Co3O4 nanostructured materials with an average crystal size of 19.37 nm and 12.98 nm for pristine Co3O4 and 0.25 M Ag-doped Co3O4 NPs. Morphological studies showed that pristine Co3O4 and 0.25 M Ag-doped Co3O4 NPs having a porous structure with small spherical grains, porous structures with sponge-like structures, and loosely packed porous structures, respectively. The pristine and 0.25 M Ag-doped Co3O4 NPs showed BET surface areas of 53.06 m2/g, and 407.33 m2/g, respectively. The band gap energy of Co3O4 NPs were 2.96 eV, with additional sub-bandgap energy of 1.95 eV. Additionally, it was discovered that the band gap energies of 0.25 M Ag-doped Co3O4 NPs ranged from 2.2 to 2.75 eV, with an extra sub-band with energies ranging from 1.43 to 1.94 eV for all as-prepared samples. The Ag-doped Co3O4 as prepared samples show improved thermal properties due to the doping effect of silver. The CV test confirmed that the 0.25 M Ag-doped Co3O4 NPs exhibited the highest specific capacitance value of 992.7 F/g at 5 mV/s in a 0.1 M KOH electrolyte solution. The energy density and power density of 0.25 M Ag-doped Co3O4 NPs were 27.9 W h/kg and 3816.1 W/kg, respectively.http://www.sciencedirect.com/science/article/pii/S2405844023004930DopingCobalt oxideNanoparticlesCo-precipitation methodSupercapacitor |
| spellingShingle | Asab Fetene Alem Ababay Ketema Worku Delele Worku Ayele Tessera Alemneh Wubieneh Alebel abebaw Teshager Tadele mihret kndie Bimrew Tamrat Admasu Minbale Admas Teshager Addisu Alemayehu Asege Mehary Dagnew Ambaw Misganaw Alemu Zeleke Alemayehu Kifle Shibesh Temesgen Atnafu Yemata Ag doped Co3O4 nanoparticles for high-performance supercapacitor application Heliyon Doping Cobalt oxide Nanoparticles Co-precipitation method Supercapacitor |
| title | Ag doped Co3O4 nanoparticles for high-performance supercapacitor application |
| title_full | Ag doped Co3O4 nanoparticles for high-performance supercapacitor application |
| title_fullStr | Ag doped Co3O4 nanoparticles for high-performance supercapacitor application |
| title_full_unstemmed | Ag doped Co3O4 nanoparticles for high-performance supercapacitor application |
| title_short | Ag doped Co3O4 nanoparticles for high-performance supercapacitor application |
| title_sort | ag doped co3o4 nanoparticles for high performance supercapacitor application |
| topic | Doping Cobalt oxide Nanoparticles Co-precipitation method Supercapacitor |
| url | http://www.sciencedirect.com/science/article/pii/S2405844023004930 |
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