High Performance Supercapacitor Electrodes from Electrospun Nickel Oxide Nanowires
Electrochemical energy storage using pseudocapacitive mode is under intense research owing to their potential in fabricating high performance renewable energy devices at a lower cost. In this paper we characterize nickel oxide (NiO) nanowires developed by electrospinning an aqueous polymeric solutio...
| Main Authors: | , , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier Ltd
2014
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/8052/1/J_Alloys_Compd_NiO_Supercap.pdf |
| _version_ | 1796990381577994240 |
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| author | Rajan, Jose Baiju, Vidyadharan Izan Izwan, Misnon Radhiyah, Abd Aziz Jamil, Ismail M. M., Yusoff Nurul Khairiyyah, Mohd Zain |
| author_facet | Rajan, Jose Baiju, Vidyadharan Izan Izwan, Misnon Radhiyah, Abd Aziz Jamil, Ismail M. M., Yusoff Nurul Khairiyyah, Mohd Zain |
| author_sort | Rajan, Jose |
| collection | UMP |
| description | Electrochemical energy storage using pseudocapacitive mode is under intense research owing to their potential in fabricating high performance renewable energy devices at a lower cost. In this paper we characterize nickel oxide (NiO) nanowires developed by electrospinning an aqueous polymeric solution containing nickel precursor for its application as a pseudocapacitors electrode. The wires are of diameter ~50 – 70 nm containing densely packed cuboidal grains (~10 – 20 nm) with less degree of crystal defects. Electrochemical properties of the electrodes fabricated on a nickel foam substrates are evaluated by cyclic voltammetry (CV) and charge – discharge cycling (CDC), and electrochemical impedance spectroscopy (EIS) techniques. The best performing devices showed a specific capacitance (CS) of ~ 670 Fg-1 with high cycling stability (~100%) for over 1000 cycles and Coulombic efficiency ~98%. Lower electrochemical equivalent resistance (~0.76 ), charge transfer resistance (~0.45 ), and charge relaxation time (43 ms) are observed which are attributed to the defect free nanowire morphology that give rise to the superior performance. |
| first_indexed | 2024-03-06T11:50:43Z |
| format | Article |
| id | UMPir8052 |
| institution | Universiti Malaysia Pahang |
| language | English |
| last_indexed | 2024-03-06T11:50:43Z |
| publishDate | 2014 |
| publisher | Elsevier Ltd |
| record_format | dspace |
| spelling | UMPir80522018-07-27T08:20:40Z http://umpir.ump.edu.my/id/eprint/8052/ High Performance Supercapacitor Electrodes from Electrospun Nickel Oxide Nanowires Rajan, Jose Baiju, Vidyadharan Izan Izwan, Misnon Radhiyah, Abd Aziz Jamil, Ismail M. M., Yusoff Nurul Khairiyyah, Mohd Zain Q Science (General) Electrochemical energy storage using pseudocapacitive mode is under intense research owing to their potential in fabricating high performance renewable energy devices at a lower cost. In this paper we characterize nickel oxide (NiO) nanowires developed by electrospinning an aqueous polymeric solution containing nickel precursor for its application as a pseudocapacitors electrode. The wires are of diameter ~50 – 70 nm containing densely packed cuboidal grains (~10 – 20 nm) with less degree of crystal defects. Electrochemical properties of the electrodes fabricated on a nickel foam substrates are evaluated by cyclic voltammetry (CV) and charge – discharge cycling (CDC), and electrochemical impedance spectroscopy (EIS) techniques. The best performing devices showed a specific capacitance (CS) of ~ 670 Fg-1 with high cycling stability (~100%) for over 1000 cycles and Coulombic efficiency ~98%. Lower electrochemical equivalent resistance (~0.76 ), charge transfer resistance (~0.45 ), and charge relaxation time (43 ms) are observed which are attributed to the defect free nanowire morphology that give rise to the superior performance. Elsevier Ltd 2014-05-09 Article PeerReviewed application/pdf en http://umpir.ump.edu.my/id/eprint/8052/1/J_Alloys_Compd_NiO_Supercap.pdf Rajan, Jose and Baiju, Vidyadharan and Izan Izwan, Misnon and Radhiyah, Abd Aziz and Jamil, Ismail and M. M., Yusoff and Nurul Khairiyyah, Mohd Zain (2014) High Performance Supercapacitor Electrodes from Electrospun Nickel Oxide Nanowires. Journal of Alloys and Compounds, 610. pp. 143-150. ISSN 0925-8388 (print), 1873-4669 (online). (Published) http://dx.doi.org/10.1016/j.jallcom.2014.04.211 DOI: 10.1016/j.jallcom.2014.04.211 |
| spellingShingle | Q Science (General) Rajan, Jose Baiju, Vidyadharan Izan Izwan, Misnon Radhiyah, Abd Aziz Jamil, Ismail M. M., Yusoff Nurul Khairiyyah, Mohd Zain High Performance Supercapacitor Electrodes from Electrospun Nickel Oxide Nanowires |
| title | High Performance Supercapacitor Electrodes from Electrospun Nickel Oxide Nanowires |
| title_full | High Performance Supercapacitor Electrodes from Electrospun Nickel Oxide Nanowires |
| title_fullStr | High Performance Supercapacitor Electrodes from Electrospun Nickel Oxide Nanowires |
| title_full_unstemmed | High Performance Supercapacitor Electrodes from Electrospun Nickel Oxide Nanowires |
| title_short | High Performance Supercapacitor Electrodes from Electrospun Nickel Oxide Nanowires |
| title_sort | high performance supercapacitor electrodes from electrospun nickel oxide nanowires |
| topic | Q Science (General) |
| url | http://umpir.ump.edu.my/id/eprint/8052/1/J_Alloys_Compd_NiO_Supercap.pdf |
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