SnO2-decorated multiwalled carbon nanotubes and Vulcan carbon through a sonochemical approach for supercapacitor applications

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Title: SnO2-decorated multiwalled carbon nanotubes and Vulcan carbon through a sonochemical approach for supercapacitor applications
Authors: Vinoth, Victor | Wu, Jerry J. | Asiri, Abdullah M. | Lana-Villarreal, Teresa | Bonete, Pedro | Anandan, Sambandam
Research Group/s: Grupo de Fotoquímica y Electroquímica de Semiconductores (GFES)
Center, Department or Service: Universidad de Alicante. Departamento de Química Física | Universidad de Alicante. Instituto Universitario de Electroquímica
Keywords: MWCNTs | SnO2 nanoparticles | Vulcan carbon | Ultrasound | Supercapacitor | Specific capacitance
Knowledge Area: Química Física
Issue Date: Mar-2016
Publisher: Elsevier
Citation: Ultrasonics Sonochemistry. 2016, 29: 205-212. doi:10.1016/j.ultsonch.2015.09.013
Abstract: Multiwalled carbon nanotubes (MWCNTs) and Vulcan carbon (VC) decorated with SnO2 nanoparticles were synthesized using a facile and versatile sonochemical procedure. The as-prepared nanocomposites were characterized by means of transmission electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy, and Fourier transform infra red spectroscopy. It was evidenced that SnO2 nanoparticles were uniformly distributed on both carbon surfaces, tightly decorating the MWCNTs and VC. The electrochemical performance of the nanocomposites was evaluated by cyclic voltammetry and galvanostatic charge/discharge cycling. The as-synthesized SnO2/MWCNTs nanocomposites show a higher capacity than the SnO2/VC nanocomposites. Concretely, the SnO2/MWCNTs electrodes exhibit a specific capacitance of 133.33 F g−1, whereas SnO2/VC electrodes exhibit a specific capacitance of 112.14 F g−1 measured at 0.5 mA cm−2 in 1 M Na2SO4.
Sponsor: S.A. thanks the Feng Chia University in Taiwan for the Visiting Professor appointment. The authors S.A. and T.L.V. thanks DST, New Delhi for the sanction of India–Spain collaborative research grant (DST/INT/Spain/P-37/11 dt.16th Dec 2011) and Generalitat Valenciana for the financial support through ACOMP/2014/137. In addition, acknowledgement is also given to the financial support of Ministry of Science and Technology, Taiwan, at the grant number of NSC-101-2221-E-035-031-MY3.
ISSN: 1350-4177 (Print) | 1873-2828 (Online)
DOI: 10.1016/j.ultsonch.2015.09.013
Language: eng
Type: info:eu-repo/semantics/article
Rights: © 2015 Elsevier B.V.
Peer Review: si
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Appears in Collections:INV - GFES - Artículos de Revistas

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