Ultra-thin solution-based coating of molybdenum oxide on multiwall carbon nanotubes for high-performance supercapacitor electrodes

Handle URI:
http://hdl.handle.net/10754/563371
Title:
Ultra-thin solution-based coating of molybdenum oxide on multiwall carbon nanotubes for high-performance supercapacitor electrodes
Authors:
Shakir, Imran; Nadeem, Muhammad Tahir; Shahid, Muhammad; Kang, Dae Joon
Abstract:
Uniform and conformal coating of ultrathin molybdenum oxide (MoO 3) thin film onto conducting MWCNTs was successfully synthesized through a facile, nontoxic and generally applicable precipitation method, followed by a simple heat treatment. The ultrathin MoO3 coating enables a fast and reversible redox reaction which improves the specific capacitance by utilizing the maximum number of active sites for the redox reaction, while the high porosity of the MWCNTs facilitates ion migration in the electrolyte and shorten the ion diffusion path. The ultrathin MoO3 coated MWCNTs electrodes show a very high specific capacitance of 1145 Fg -1 in 2 M Na2SO4 aqueous solution when 5 nm thick MoO3 was considered alone despite the low weight percentage of the MoO3 (16wt%). Furthermore, the ultrathin MoO3 coated MWCNTs supercapacitor electrodes exhibited excellent cycling performance of > 97% capacitance retention over 1000 cycles. © 2013 Elsevier Ltd.
KAUST Department:
Materials Science and Engineering Program; Physical Sciences and Engineering (PSE) Division
Publisher:
Elsevier BV
Journal:
Electrochimica Acta
Issue Date:
Feb-2014
DOI:
10.1016/j.electacta.2013.11.135
Type:
Article
ISSN:
00134686
Sponsors:
This research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2009-0094023). IS would like to extend his sincere appreciation to the Deanship of Scientific Research at King Saud University for the funding through Research Group Project no. RGP-VPP-312.
Appears in Collections:
Articles; Physical Sciences and Engineering (PSE) Division; Materials Science and Engineering Program

Full metadata record

DC FieldValue Language
dc.contributor.authorShakir, Imranen
dc.contributor.authorNadeem, Muhammad Tahiren
dc.contributor.authorShahid, Muhammaden
dc.contributor.authorKang, Dae Joonen
dc.date.accessioned2015-08-03T11:46:55Zen
dc.date.available2015-08-03T11:46:55Zen
dc.date.issued2014-02en
dc.identifier.issn00134686en
dc.identifier.doi10.1016/j.electacta.2013.11.135en
dc.identifier.urihttp://hdl.handle.net/10754/563371en
dc.description.abstractUniform and conformal coating of ultrathin molybdenum oxide (MoO 3) thin film onto conducting MWCNTs was successfully synthesized through a facile, nontoxic and generally applicable precipitation method, followed by a simple heat treatment. The ultrathin MoO3 coating enables a fast and reversible redox reaction which improves the specific capacitance by utilizing the maximum number of active sites for the redox reaction, while the high porosity of the MWCNTs facilitates ion migration in the electrolyte and shorten the ion diffusion path. The ultrathin MoO3 coated MWCNTs electrodes show a very high specific capacitance of 1145 Fg -1 in 2 M Na2SO4 aqueous solution when 5 nm thick MoO3 was considered alone despite the low weight percentage of the MoO3 (16wt%). Furthermore, the ultrathin MoO3 coated MWCNTs supercapacitor electrodes exhibited excellent cycling performance of > 97% capacitance retention over 1000 cycles. © 2013 Elsevier Ltd.en
dc.description.sponsorshipThis research was supported by Basic Science Research Program through the National Research Foundation of Korea (NRF) funded by the Ministry of Education (2009-0094023). IS would like to extend his sincere appreciation to the Deanship of Scientific Research at King Saud University for the funding through Research Group Project no. RGP-VPP-312.en
dc.publisherElsevier BVen
dc.subjectMolybdenum oxideen
dc.subjectMulti walled carbon nanotubesen
dc.subjectSupercapacitoren
dc.subjectUltra high capacitanceen
dc.titleUltra-thin solution-based coating of molybdenum oxide on multiwall carbon nanotubes for high-performance supercapacitor electrodesen
dc.typeArticleen
dc.contributor.departmentMaterials Science and Engineering Programen
dc.contributor.departmentPhysical Sciences and Engineering (PSE) Divisionen
dc.identifier.journalElectrochimica Actaen
dc.contributor.institutionDepartment of Physics, Institute of Basic Sciences, Sungkyunkwan University, Suwon 440-746, South Koreaen
dc.contributor.institutionDeanship of Scientific Research, College of Engineering, King Saudi University, PO-BOX 800, Riyadh 11421, Saudi Arabiaen
dc.contributor.institutionFormerly at Department of Chemistry, University of Agriculture, Faisalabad-38040, Punjab, Pakistanen
dc.contributor.institutionSubsurface Technology, Petronas Research Sdn Bhd. (PRSB), Bangi-43300, Selangor, Malaysiaen
kaust.authorShahid, Muhammaden
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