The influence of carbon monoxide on the voltammetric behaviour of nickel in acid solutions

The voltammetric behaviour of nickel in acid solutions is considerably modified by the presence of CO. As in plain acid the voltammogram also exhibits two main anodic peaks, but in this case, the adsorption of CO on the nickel surface shifts the metal electrodissolution to more positive potentials,...

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Detalles Bibliográficos
Autores principales: Castro Luna Berenguer, Ana María del Carmen, Arvia, Alejandro Jorge
Formato: Articulo
Lenguaje:Inglés
Publicado: 1991
Materias:
Física
Ciencias Exactas
Química
Nickel
Carbon Monoxide
Expense
Acid Solution
Energy Difference
Acceso en línea:http://sedici.unlp.edu.ar/handle/10915/139486
Aporte de:
SEDICI (UNLP) de Universidad Nacional de La Plata
id I19-R120-10915-139486
record_format dspace
institution Universidad Nacional de La Plata
institution_str I-19
repository_str R-120
collection SEDICI (UNLP)
language Inglés
topic Física
Ciencias Exactas
Química
Nickel
Carbon Monoxide
Expense
Acid Solution
Energy Difference
spellingShingle Física
Ciencias Exactas
Química
Nickel
Carbon Monoxide
Expense
Acid Solution
Energy Difference
Castro Luna Berenguer, Ana María del Carmen
Arvia, Alejandro Jorge
The influence of carbon monoxide on the voltammetric behaviour of nickel in acid solutions
topic_facet Física
Ciencias Exactas
Química
Nickel
Carbon Monoxide
Expense
Acid Solution
Energy Difference
description The voltammetric behaviour of nickel in acid solutions is considerably modified by the presence of CO. As in plain acid the voltammogram also exhibits two main anodic peaks, but in this case, the adsorption of CO on the nickel surface shifts the metal electrodissolution to more positive potentials, and increases the contribution of the second electrooxidation current peak at the expense of the first one. The latter is the main peak in CO-free acids. The presence of CO adsorbates also decreases the charge of the Ni(OH)2/NiOOH redox couple in alkaline solutions. The potential shift of the nickel electrooxidation reaction in acids follows the trend which is expected from the energy difference between CO and H2O adsorption on nickel in the gas phase.
format Articulo
Articulo
author Castro Luna Berenguer, Ana María del Carmen
Arvia, Alejandro Jorge
author_facet Castro Luna Berenguer, Ana María del Carmen
Arvia, Alejandro Jorge
author_sort Castro Luna Berenguer, Ana María del Carmen
title The influence of carbon monoxide on the voltammetric behaviour of nickel in acid solutions
title_short The influence of carbon monoxide on the voltammetric behaviour of nickel in acid solutions
title_full The influence of carbon monoxide on the voltammetric behaviour of nickel in acid solutions
title_fullStr The influence of carbon monoxide on the voltammetric behaviour of nickel in acid solutions
title_full_unstemmed The influence of carbon monoxide on the voltammetric behaviour of nickel in acid solutions
title_sort influence of carbon monoxide on the voltammetric behaviour of nickel in acid solutions
publishDate 1991
url http://sedici.unlp.edu.ar/handle/10915/139486
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