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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Freestanding Aligned Multi-walled Carbon Nanotubes for Supercapacitor Devices

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Author(s):
Silva Moreira, Joao Vitor ; Corat, Evaldo Jose ; May, Paul William ; Ribeiro Cardoso, Lays Dias ; Lelis, Pedro Almeida ; Zanin, Hudson
Total Authors: 6
Document type: Journal article
Source: Journal of Electronic Materials; v. 45, n. 11, p. 5781-5788, NOV 2016.
Web of Science Citations: 13
Abstract

We report on the synthesis and electrochemical properties of multi-walled carbon nanotubes (MWCNTs) for supercapacitor devices. Freestanding vertically-aligned MWCNTs and MWCNT powder were grown concomitantly in a one-step chemical vapour deposition process. Samples were characterized by scanning and transmission electron microscopies and Fourier transform infrared and Raman spectroscopies. At similar film thicknesses and surface areas, the freestanding MWCNT electrodes showed higher electrochemical capacitance and gravimetric specific energy and power than the randomly-packed nanoparticle-based electrodes. This suggests that more ordered electrode film architectures facilitate faster electron and ion transport during the charge-discharge processes. Energy storage and supply or supercapacitor devices made from these materials could bridge the gap between rechargeable batteries and conventional high-power electrostatic capacitors. (AU)

FAPESP's process: 14/02163-7 - Development of supercapacitors devices from graphene, carbon nanotubes and diamonds
Grantee:Hudson Giovani Zanin
Support type: Research Grants - Young Investigators Grants
FAPESP's process: 14/21587-2 - Development of supercapacitors devices from graphene, carbon nanotubes and diamonds
Grantee:Hudson Giovani Zanin
Support type: Scholarships in Brazil - Young Researchers
FAPESP's process: 15/17764-9 - Synthesis and characterization of graphene by chemical deposition
Grantee:Joao Vitor da Silva Moreira
Support type: Scholarships in Brazil - Scientific Initiation
FAPESP's process: 15/50093-0 - Brazil and UK collaboration for energy storage and supply
Grantee:Hudson Giovani Zanin
Support type: Regular Research Grants
FAPESP's process: 15/17829-3 - Design and implementation of a HFCVD reactor
Grantee:Pedro Lelis da Rocha Almeida
Support type: Scholarships in Brazil - Scientific Initiation