Please use this identifier to cite or link to this item:
Scopus Web of Science® Altmetric
Type: Journal article
Title: Hybrid core-shell nanostructured electrodes made of polypyrrole nanotubes coated with Ni(OH)₂ nanoflakes for high energy-density supercapacitors
Author: Wolfart, F.
Dubal, D.
Vidotti, M.
Gómez-Romero, P.
Citation: RSC Advances: an international journal to further the chemical sciences, 2016; 6(18):15062-15070
Publisher: Royal Society of Chemistry
Issue Date: 2016
ISSN: 2046-2069
Statement of
Franciele Wolfart, Deepak P. Dubal, Marcio Vidotti and Pedro Gómez-Romero
Abstract: This work describes the design of Ni(OH)₂@PPy-NTs core–shell nanostructures with potential application as an electrode material for supercapacitors. Initially, one dimensional (1D) polypyrrole nanotubes (PPy- NTs) were synthesized through a chemical oxidation mediated soft template-directed route using as the anion the azo dye methyl orange (MO). Subsequently, three dimensional (3D) Ni(OH)₂ nanoflakes were grown onto PPy-NTs by a simple hydrothermal route. This exclusive Ni(OH)₂@PPy-NTs nanoarchitecture helps to improve the overall electrochemical performance of the electrode, due to the high surface area provided by 3D nanoflakes and excellent electronic/ionic conductivity of 1D nanotubes. The maximum specific capacitance obtained for Ni(OH)₂@PPy-NTs was 536 F g⁻¹ with good capacity retention after 1000 charge/discharge cycles. Last but not least, EIS technique showed a low electrochemical series resistance for Ni(OH)₂@PPy-NTs confirming their promise as a high-performance energy storage material.
Rights: This journal is © The Royal Society of Chemistry 2016
DOI: 10.1039/c5ra23671a
Grant ID: MAT2012-39199-C02-01
Published version:
Appears in Collections:Aurora harvest 8
Chemical Engineering publications

Files in This Item:
There are no files associated with this item.

Items in DSpace are protected by copyright, with all rights reserved, unless otherwise indicated.