Facile synthesis of NiTe2-Co2Te2@rGO nanocomposite for high-performance hybrid supercapacitor
Abstract The design of bimetallic tellurides that exhibit excellent electrochemical properties remains a huge challenge for high-performance supercapacitors. In the present study, tellurium is consolidated on CoNi2@rGO for the first time, to synthesize NiTe2-Co2Te2@rGO nanocomposite by using a facil...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2023-01-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-023-28581-5 |
| _version_ | 1811175863924817920 |
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| author | Maziar Farshadnia Ali A. Ensafi Kimia Zarean Mousaabadi Behzad Rezaei Muslum Demir |
| author_facet | Maziar Farshadnia Ali A. Ensafi Kimia Zarean Mousaabadi Behzad Rezaei Muslum Demir |
| author_sort | Maziar Farshadnia |
| collection | DOAJ |
| description | Abstract The design of bimetallic tellurides that exhibit excellent electrochemical properties remains a huge challenge for high-performance supercapacitors. In the present study, tellurium is consolidated on CoNi2@rGO for the first time, to synthesize NiTe2-Co2Te2@rGO nanocomposite by using a facile hydrothermal method. As-prepared NiTe2-Co2Te2@rGO nanocomposite was characterized by EDS, TEM, FESEM, Raman, BET, XRD, and XPS techniques to prove the structural transformation. Upon the electrochemical characterization, NiTe2-Co2Te2@rGO has notably presented numerous active sites and enhanced contact sites with the electrolyte solution during the faradic reaction. The as-prepared nanocomposite reveals a specific capacity of 223.6 mAh g−1 in 1.0 M KOH at 1.0 A g-1. Besides, it could retain 89.3% stability after 3000 consecutive galvanostatic charge–discharge cycles at 1.0 A g−1 current density. The hybrid supercapacitor, fabricated by activated carbon as an anode site, and NiTe2-Co2Te2@rGO as a cathode site, presents a potential window of 1.60 V with an energy density of 51 Wh kg−1 and a power density of 800 W kg−1; this electrode is capable of lighting up two red LED lamps and a yellow LED lamp for 20 min, which is connected in parallel. The present work opens new avenues to design and fabrication of nanocomposite electrode materials in the field of supercapacitors. |
| first_indexed | 2024-04-10T19:42:47Z |
| format | Article |
| id | doaj.art-23ebe55dfc6344dc9b44fb2be0fd4174 |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-10T19:42:47Z |
| publishDate | 2023-01-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-23ebe55dfc6344dc9b44fb2be0fd41742023-01-29T12:11:08ZengNature PortfolioScientific Reports2045-23222023-01-011311810.1038/s41598-023-28581-5Facile synthesis of NiTe2-Co2Te2@rGO nanocomposite for high-performance hybrid supercapacitorMaziar Farshadnia0Ali A. Ensafi1Kimia Zarean Mousaabadi2Behzad Rezaei3Muslum Demir4Department of Chemistry, Isfahan University of TechnologyDepartment of Chemistry, Isfahan University of TechnologyDepartment of Chemistry, Isfahan University of TechnologyDepartment of Chemistry, Isfahan University of TechnologyDepartment of Chemical Engineering, Osmaniye Korkut Ata UniversityAbstract The design of bimetallic tellurides that exhibit excellent electrochemical properties remains a huge challenge for high-performance supercapacitors. In the present study, tellurium is consolidated on CoNi2@rGO for the first time, to synthesize NiTe2-Co2Te2@rGO nanocomposite by using a facile hydrothermal method. As-prepared NiTe2-Co2Te2@rGO nanocomposite was characterized by EDS, TEM, FESEM, Raman, BET, XRD, and XPS techniques to prove the structural transformation. Upon the electrochemical characterization, NiTe2-Co2Te2@rGO has notably presented numerous active sites and enhanced contact sites with the electrolyte solution during the faradic reaction. The as-prepared nanocomposite reveals a specific capacity of 223.6 mAh g−1 in 1.0 M KOH at 1.0 A g-1. Besides, it could retain 89.3% stability after 3000 consecutive galvanostatic charge–discharge cycles at 1.0 A g−1 current density. The hybrid supercapacitor, fabricated by activated carbon as an anode site, and NiTe2-Co2Te2@rGO as a cathode site, presents a potential window of 1.60 V with an energy density of 51 Wh kg−1 and a power density of 800 W kg−1; this electrode is capable of lighting up two red LED lamps and a yellow LED lamp for 20 min, which is connected in parallel. The present work opens new avenues to design and fabrication of nanocomposite electrode materials in the field of supercapacitors.https://doi.org/10.1038/s41598-023-28581-5 |
| spellingShingle | Maziar Farshadnia Ali A. Ensafi Kimia Zarean Mousaabadi Behzad Rezaei Muslum Demir Facile synthesis of NiTe2-Co2Te2@rGO nanocomposite for high-performance hybrid supercapacitor Scientific Reports |
| title | Facile synthesis of NiTe2-Co2Te2@rGO nanocomposite for high-performance hybrid supercapacitor |
| title_full | Facile synthesis of NiTe2-Co2Te2@rGO nanocomposite for high-performance hybrid supercapacitor |
| title_fullStr | Facile synthesis of NiTe2-Co2Te2@rGO nanocomposite for high-performance hybrid supercapacitor |
| title_full_unstemmed | Facile synthesis of NiTe2-Co2Te2@rGO nanocomposite for high-performance hybrid supercapacitor |
| title_short | Facile synthesis of NiTe2-Co2Te2@rGO nanocomposite for high-performance hybrid supercapacitor |
| title_sort | facile synthesis of nite2 co2te2 rgo nanocomposite for high performance hybrid supercapacitor |
| url | https://doi.org/10.1038/s41598-023-28581-5 |
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