Effect of hydrogen charging on the stability of SAE 10B22 steel surface in alkaline solutions


Autoria(s): Modiano, S.; Carreno, J. A.; Fugivara, Cecilio Sadao; Benedetti, Assis Vicente; Mattos, O. R.
Contribuinte(s)

Universidade Estadual Paulista (UNESP)

Data(s)

20/05/2014

20/05/2014

01/11/2005

Resumo

The influence of hydrogen charging into a quenched and tempered boron steel membrane electrode (SAE 10B22) was studied using borate buffer (pH 8.4) and NaOH solutions (pH 12.7), with or without the addition of 0.01 M EDTA. At the hydrogen input side, hydrogen charging influenced cyclic voltammograms increasing the anodic charge of iron(II) hydroxide formation, and decreasing the donor density of passive films. These results suggest that the hydrogen ingress caused instability of metallic surface, increasing the surface area activity. (C) 2005 Elsevier Ltd. All rights reserved.

Formato

641-648

Identificador

http://dx.doi.org/10.1016/j.electacta.2005.05.022

Electrochimica Acta. Oxford: Pergamon-Elsevier B.V., v. 51, n. 4, p. 641-648, 2005.

0013-4686

http://hdl.handle.net/11449/25442

10.1016/j.electacta.2005.05.022

WOS:000233298600008

Idioma(s)

eng

Publicador

Elsevier B.V.

Relação

Electrochimica Acta

Direitos

closedAccess

Palavras-Chave #boron-alloyed steel #hydrogen charging #Mott-Shottky plots #cyclic voltammetry #EIS
Tipo

info:eu-repo/semantics/article