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Mariappan VK, Krishnamoorthy K, Manoharan S, Pazhamalai P, Kim SJ. Electrospun Polymer-Derived Carbyne Supercapacitor for Alternating Current Line Filtering. SMALL (WEINHEIM AN DER BERGSTRASSE, GERMANY) 2021; 17:e2102971. [PMID: 34270870 DOI: 10.1002/smll.202102971] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/21/2021] [Indexed: 06/13/2023]
Abstract
The filtering device is a vital component of electronic goods that rectifies ripples which occur upon converting alternating current (AC) to direct current (DC) and attenuates high-frequency noise during switching or voltage declines. Classical filtering devices suffer from low performance metrics and are bulky, limiting their use in modern electronic devices. The fabrication process of electrode materials for high-frequency symmetric supercapacitor (HFSSC) is complicated, hindering commercialization. Herein, for the first time, the design of a high-performance stand-alone carbyne film comprised of sp/sp2 -hybridized carbon as an electrode for AC filtering under a wide frequency range is reported. The carbyne film as HFSSC shows the ideal capacitive behavior at ultrahigh scan rate of 10 000 V s-1 with excellent linearity which is top among the reported AC line filter capacitor. The carbyne HFSSC exhibits a high energy density of 703.25 µF V2 cm-2 at 120 Hz, which is superior to that of current commercial electrolytic filters and many reported AC line supercapacitors. As a proof of concept, a carbyne device is implemented in a real time AC to DC adaptor that demonstrates excellent filtering performance at high frequencies.
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Affiliation(s)
- Vimal Kumar Mariappan
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju, 63243, Republic of Korea
| | - Karthikeyan Krishnamoorthy
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju, 63243, Republic of Korea
| | - Sindhuja Manoharan
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju, 63243, Republic of Korea
| | - Parthiban Pazhamalai
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju, 63243, Republic of Korea
| | - Sang-Jae Kim
- Nanomaterials and System Laboratory, Major of Mechatronics Engineering, Faculty of Applied Energy System, Jeju National University, Jeju, 63243, Republic of Korea
- Semiconductor & Display Research Center, Jeju National University, Jeju, 63243, Republic of Korea
- Research Institute of Advanced Technology, Jeju National University, Jeju, 63243, Republic of Korea
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SEM and XPS Study of Cr6+ Removal from Wastewater via Reduction and Adsorption by Hierarchically Structured Carbon Composite in Neutral Media. J Inorg Organomet Polym Mater 2021. [DOI: 10.1007/s10904-021-02003-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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Mariappan VK, Krishnamoorthy K, Pazhamalai P, Sahoo S, Kim SJ. Carbyne-enriched carbon anchored on nickel foam: A novel binder-free electrode for supercapacitor application. J Colloid Interface Sci 2019; 556:411-419. [PMID: 31472315 DOI: 10.1016/j.jcis.2019.08.055] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2019] [Revised: 08/13/2019] [Accepted: 08/15/2019] [Indexed: 10/26/2022]
Abstract
Carbon- and carbon derivatives are widely employed as efficient electrode materials for supercapacitor applications. Herein, we demonstrate a cost-effective dip-coating process followed by dehydrohalogenation of PVDF-Ni for the preparation of carbyne enriched carbon anchored on nickel (CEC-Ni) as high-performance electrode material. The removal of halogens in the prepared CEC-Ni were widely characterized using XRD, XPS, Laser Raman, and FT-IR analysis. The occurrence of carbon-carbon vibration in the prepared CEC-Ni foam was confirmed using FT-IR spectroscopy. Laser Raman analysis confirms that the CEC-Ni foam contains both sp and sp2 hybridized carbon. The electrochemical properties of prepared carbyne enriched carbon anchored on nickel foam electrode (CEC-NiE) showed an ideal capacitive properties and delivered a maximum specific capacitance of about 106.12 F g-1 with excellent cyclic retention. Furthermore, the mechanism of charge-storage in the CEC-NiE was analyzed using Dunn's method. In additon, the asymmetric supercapacitor device was fabricated using CEC-NiE as positive and rGO as negative electrode achieved a remarkable energy density of 33.57 Wh Kg-1 with a maximal power density of 14825.71 W Kg-1. These results suggested that the facile preparation of CEC-NiE could be a promising and effective electrode material for future energy storage application.
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Affiliation(s)
- Vimal Kumar Mariappan
- Nanomaterials Laboratory, Department of Mechatronics Engineering, Jeju National University, Jeju 63243, Republic of Korea
| | - Karthikeyan Krishnamoorthy
- Nanomaterials Laboratory, Department of Mechatronics Engineering, Jeju National University, Jeju 63243, Republic of Korea
| | - Parthiban Pazhamalai
- Nanomaterials Laboratory, Department of Mechatronics Engineering, Jeju National University, Jeju 63243, Republic of Korea
| | - Surjit Sahoo
- Nanomaterials Laboratory, Department of Mechatronics Engineering, Jeju National University, Jeju 63243, Republic of Korea
| | - Sang-Jae Kim
- Nanomaterials Laboratory, Department of Mechatronics Engineering, Jeju National University, Jeju 63243, Republic of Korea; Department of Advanced Convergence Science and Technology, Jeju National University, Jeju 63243, Republic of Korea.
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