Supercapacitors using binderless composite monolith electrodes from carbon nanotubes and pre-carbonized biomass residues

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dc.contributor.authorBasri, Nur Hamizah
dc.contributor.authorDeraman, Mohamad
dc.contributor.authorKanwal
dc.contributor.authorTalib
dc.contributor.authorManjunatha
dc.contributor.authorAziz
dc.contributor.authorFarma, Rakhmawati
dc.date.accessioned2015-09-10T02:15:00Z
dc.date.available2015-09-10T02:15:00Z
dc.date.issued2015-09-10
dc.description.abstractBinderless composite monolith (BCM) electrodes prepared from carbon nanotubes (CNTs) and self-adhesive carbon grains (SACGs) were used in a symmetrical supercapacitor. The SACGs were prepared from fibers of oil palm empty fruit bunches (EFBs) from oil palm tree (Elaeis guineensis), Heliotropium dasycarpum (H. dasycarpum) and Guaiacum officinale (G. officinale). For each biomass, the BCMs were prepared by the carbonization and activation of green monoliths (GMs) containing SACGs treated with KOH and a mixture of SACGs and CNTs treated with KOH. Thermal decomposition behavior of all SACGs was found to be slightly different because of the difference in their compositions. In addition, BCMs from H. dasycarpum and G. officinale were found to have SiO2. The BET surface areas were 1656, 1031 and 532 m2 g 1 for the BCMs from EFB, H. dasycarpum and G. officinale, respectively, and these values decreased by 40, 50 and 31% upon CNTs addition. Consequently, the specific capacitance decreased from w124 to w104 and w49 F g 1 to w111, w87 and w31 F g 1, respectively. However, addition of CNTs reduced the equivalent series resistance (ESR) by a factor of 83.9 (EFB), 90.6 (H. dasycarpum) and 38.8 (G. officinale) %. It was also found that CNTs addition contributed to improving the decay of Csp with increasing scan rate if the electrode surface area was sufficiently high.en_US
dc.description.sponsorshipbiomass and bio energy 5 9 ( 2 0 1 3 ) 3 7 0 e3 7 9en_US
dc.identifier.otherwahyu sari yeni
dc.identifier.urihttp://www.sciencedirect.com/science/article/pii/S0961953413003814
dc.identifier.urihttp://repository.unri.ac.id/xmlui/handle/123456789/7525
dc.language.isoenen_US
dc.subjectElaeis guineensisen_US
dc.subjectHeliotropium dasycarpumen_US
dc.subjectGuaiacum officinaleen_US
dc.subjectEnergy storageen_US
dc.subjectBinderless composite electrodesen_US
dc.subjectPorosityen_US
dc.titleSupercapacitors using binderless composite monolith electrodes from carbon nanotubes and pre-carbonized biomass residuesen_US
dc.typeUR-Scientific Work Lectureren_US

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