Publication detail

Effect of carbon support on the kinetic bahaviour of the metalic hydride electrode

BARATH, P. SEDLAŘÍKOVÁ, M. VONDRÁK, J.

Original Title

Effect of carbon support on the kinetic bahaviour of the metalic hydride electrode

Type

journal article - other

Language

English

Original Abstract

The possibility to improve the electrochemical behaviour of AB5-alloy commercial electrodes was studied using different carbons as support, such as carbon blacks and a selection of commercial and in-lab synthesised carbon nanotubes. The carbons selected for this work present different morphologies (i.e., spherical and tubular). Furthermore, they also present a variation of the porous structure and subsequent surface area, which are also going to influence their further electrochemical behaviour. Carbon samples were texturally characterised by the adsorption–desorption of N2 and CO2 at 77 and 273 K, respectively. The carbon structure was analysed by XRD, Raman, TEM, and the chemistry of the samples was also characterised by elemental analysis. The charge and discharge techniques, cyclic voltammetry, rate capability and linear polarisation were used for the electrochemical characterisation of the electrodes studied. The electrochemical behaviour of all the samples was related to their morphological, textural and chemical properties. The results show that there is a clear influence of the nature of the carbon support on the hydriding/dehydriding reaction of the alloy, and in the case of active carbons the kinetics decreases with the increase of the surface area of the carbon support.

Keywords

carbon, metalhydride electrode

Authors

BARATH, P.; SEDLAŘÍKOVÁ, M.; VONDRÁK, J.

RIV year

2009

Released

7. 7. 2009

Publisher

Elsevier

Location

Amsterodam, NL

ISBN

0013-4686

Periodical

Electrochimica Acta

Year of study

54

Number

7

State

United Kingdom of Great Britain and Northern Ireland

Pages from

2010

Pages to

2017

Pages count

8

BibTex

@article{BUT48673,
  author="Peter {Barath} and Marie {Sedlaříková} and Jiří {Vondrák}",
  title="Effect of carbon support on the kinetic bahaviour of the metalic hydride electrode",
  journal="Electrochimica Acta",
  year="2009",
  volume="54",
  number="7",
  pages="2010--2017",
  issn="0013-4686"
}