Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications
In this study, a plasma in a liquid process (PiLP) was used to facilely precipitate bimetallic nanoparticles composed of Ni and Co elements on the surface of activated carbon. The physicochemical and electrochemical properties of the fabricated composites were evaluated to examine the potential of s...
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MDPI AG
2019-12-01
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| Series: | Nanomaterials |
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| Online Access: | https://www.mdpi.com/2079-4991/10/1/61 |
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| author | Heon Lee In-Soo Park Young-Kwon Park Kay-Hyeok An Byung-Joo Kim Sang-Chul Jung |
| author_facet | Heon Lee In-Soo Park Young-Kwon Park Kay-Hyeok An Byung-Joo Kim Sang-Chul Jung |
| author_sort | Heon Lee |
| collection | DOAJ |
| description | In this study, a plasma in a liquid process (PiLP) was used to facilely precipitate bimetallic nanoparticles composed of Ni and Co elements on the surface of activated carbon. The physicochemical and electrochemical properties of the fabricated composites were evaluated to examine the potential of supercapacitors as electrode materials. Nickel and cobalt ions in the aqueous reactant solution were uniformly precipitated on the AC surface as spherical nanoparticles with a size of about 100 nm by PiLP reaction. The composition of nanoparticles was determined by the molar ratio of nickel and cobalt precursors and precipitated in the form of bimetallic oxide. The electrical conductivity and specific capacitance were increased by Ni-Co bimetallic oxide nanoparticles precipitated on the AC surface. In addition, the electrochemical performance was improved by stable cycling stability and resistance reduction and showed the best performance when the molar ratios of Ni and Co precursors were the same. |
| first_indexed | 2024-04-12T10:42:41Z |
| format | Article |
| id | doaj.art-76c5e888d68e43d48bf5b202f21b5a80 |
| institution | Directory Open Access Journal |
| issn | 2079-4991 |
| language | English |
| last_indexed | 2024-04-12T10:42:41Z |
| publishDate | 2019-12-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Nanomaterials |
| spelling | doaj.art-76c5e888d68e43d48bf5b202f21b5a802022-12-22T03:36:33ZengMDPI AGNanomaterials2079-49912019-12-011016110.3390/nano10010061nano10010061Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode ApplicationsHeon Lee0In-Soo Park1Young-Kwon Park2Kay-Hyeok An3Byung-Joo Kim4Sang-Chul Jung5Department of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922, KoreaDepartment of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922, KoreaSchool of Environmental Engineering, University of Seoul, 163 Seoulsiripdaero, Dongdaemun-gu, Seoul 02504, KoreaDepartment of Nano & Advanced Materials Engineering, Jeonju University, 303 Cheonjam-ro, Jeonju 55069, KoreaA Carbon Valley R&D Division, Korea Institute of Carbon Convergence Technology, 110-11 Banryong-ro, Jeonju 54853, KoreaDepartment of Environmental Engineering, Sunchon National University, 255 Jungang-ro, Suncheon, Jeonnam 57922, KoreaIn this study, a plasma in a liquid process (PiLP) was used to facilely precipitate bimetallic nanoparticles composed of Ni and Co elements on the surface of activated carbon. The physicochemical and electrochemical properties of the fabricated composites were evaluated to examine the potential of supercapacitors as electrode materials. Nickel and cobalt ions in the aqueous reactant solution were uniformly precipitated on the AC surface as spherical nanoparticles with a size of about 100 nm by PiLP reaction. The composition of nanoparticles was determined by the molar ratio of nickel and cobalt precursors and precipitated in the form of bimetallic oxide. The electrical conductivity and specific capacitance were increased by Ni-Co bimetallic oxide nanoparticles precipitated on the AC surface. In addition, the electrochemical performance was improved by stable cycling stability and resistance reduction and showed the best performance when the molar ratios of Ni and Co precursors were the same.https://www.mdpi.com/2079-4991/10/1/61supercapacitor electrodeni-co bimetallic oxide nanoparticleactivated carbonplasma in liquid processspecific capacitance |
| spellingShingle | Heon Lee In-Soo Park Young-Kwon Park Kay-Hyeok An Byung-Joo Kim Sang-Chul Jung Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications Nanomaterials supercapacitor electrode ni-co bimetallic oxide nanoparticle activated carbon plasma in liquid process specific capacitance |
| title | Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications |
| title_full | Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications |
| title_fullStr | Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications |
| title_full_unstemmed | Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications |
| title_short | Facile Preparation of Ni-Co Bimetallic Oxide/Activated Carbon Composites Using the Plasma in Liquid Process for Supercapacitor Electrode Applications |
| title_sort | facile preparation of ni co bimetallic oxide activated carbon composites using the plasma in liquid process for supercapacitor electrode applications |
| topic | supercapacitor electrode ni-co bimetallic oxide nanoparticle activated carbon plasma in liquid process specific capacitance |
| url | https://www.mdpi.com/2079-4991/10/1/61 |
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