Impedance spectroscopic analysis of composite electrode from activated carbon/conductive materials/ruthenium oxide for supercapacitor applications

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dc.contributor.authorTaer, Erman
dc.contributor.authorDeraman, Mohamad
dc.contributor.authorTalib
dc.contributor.authorAwitdrus
dc.contributor.authorFarma, Rakhmawati
dc.contributor.authorIshak
dc.contributor.authorOmar, Ramli
dc.contributor.authorDollah, Besek Nurdiana Mohd
dc.contributor.authorBasri, Nur Hamizah
dc.contributor.authorOthman
dc.contributor.authorKanwal
dc.date.accessioned2015-09-07T04:02:00Z
dc.date.available2015-09-07T04:02:00Z
dc.date.issued2015-09-07
dc.description.abstractActivated carbon powders (ACP) were produced from the KOH treated pre-carbonized rubber wood sawdust. Different conductive materials (graphite, carbon black and carbon nanotubes (CNTs)) were added with a binder (polivinylidene fluoride (PVDF)) into ACP to improve the supercapacitive performance of the activated carbon (AC) electrodes. Symmetric supercapacitor cells, fabricated using these AC electrodes and 1 molar H2SO4 electrolyte, were analyzed using a standard electrochemical impedance spectroscopy technique. The addition of graphite, carbon black and CNTs was found effective in reducing the cell resistance from 165 to 68, 23 and 49 Ohm respectively, and increasing the specific capacitance of the AC electrodes from 3 to 7, 17, 32 F g-1 respectively. Since the addition of CNTs can produce the highest specific capacitance, CNTs were chosen as a conductive material to produce AC composite electrodes that were added with 2.5 %, 5 % and 10 % (by weight) electro-active material namely ruthenium oxide; PVDF binder and CNTs contents were kept at 5 % by weight in each AC composite produced. The highest specific capacitance of the cells obtained in this study was 86 F g-1, i.e. for the cell with the resistance of 15 Ohm and composite electrode consists of 5 % ruthenium oxide.en_US
dc.description.sponsorshipAIP CONFERENCE PROCEEDINGSen_US
dc.identifier.otherwahyu sari yeni
dc.identifier.urihttp://scitation.aip.org/content/aip/proceeding/aipcp/10.1063/1.4917093
dc.identifier.urihttp://repository.unri.ac.id/xmlui/handle/123456789/7520
dc.language.isoenen_US
dc.subjectActivated carbonen_US
dc.subjectSupercapacitoren_US
dc.subjectSpecific capacitanceen_US
dc.subjectCell resistanceen_US
dc.subjectCarbon nanotubesen_US
dc.titleImpedance spectroscopic analysis of composite electrode from activated carbon/conductive materials/ruthenium oxide for supercapacitor applicationsen_US
dc.typeUR-Scientific Work Lectureren_US

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