The Vanadium Redox Reactions - Electrocatalysis versus Non-Electrocatalysis.

Stimming, Ulrich; Wang, Jiabin; Bund, Andreas

Stimming, Ulrich; Wang, Jiabin; Bund, Andreas.

Afiliación

Stimming U; Chemistry - School of Natural and Environmental Sciences, Newcastle University, Newcastle upon Tyne, NE1 7RU, United Kingdom.
Wang J; North East Centre for Energy Materials (NECEM), Newcastle upon Tyne, NE1 7RU, United Kingdom.
Bund A; Department of Physics, Technische Universität München, 80333, Munich, Germany.

Chemphyschem ; 20(22): 3004-3009, 2019 11 19.

Article en En | MEDLINE | ID: mdl-31670890

RESUMEN

Catalytic effects of surface groups on porous carbon electrodes are claimed in literature for the redox reactions V(II)/V(III) and V(IV)/V(V). The literature is critically analysed also in relation to work of this group. A method how to overcome the problem of assessing the electrochemically active surface area on porous electrodes is presented. Applying this method, no catalytic effects for above reactions can be substantiated. It is further pointed out that the parameters electrochemical potential and temperature need to be used to assess electrocatalysis.

Palabras clave

charge-transfer kinetics; electrocatalysis; porous carbon electrodes; temperature dependence; vanadium redox reactions

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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Idioma: En Revista: Chemphyschem Asunto de la revista: BIOFISICA / QUIMICA Año: 2019 Tipo del documento: Article País de afiliación: Reino Unido Pais de publicación: Alemania

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