CiteULike is a free online bibliography manager. Register and you can start organising your references online.
Tags

Quantified oxygen evolution at microelectrodes

by: K. P. Rataj, C. Hammer, B. Walther, M. M. Lohrengel
Electrochimica Acta, Vol. 90 (February 2013), pp. 12-16, doi:10.1016/j.electacta.2012.12.009  Key: citeulike:12015210

Formatted Citation


Show HTML

Likes (beta)

This copy of the article hasn't been liked by anyone yet.

View FullText article


Abstract

The anodic oxygen evolution on Cu, Co and Mo was investigated under potential control in flow-through micro cells by fluorescence quenching of dichlorotris(1,10-phenanthroline)ruthenium(II)hydrate. The experiments were carried out in concentrated chloride and nitrate solutions up to extreme current densities of 70 A/cm2. The amounts of oxygen were compared to the anodic charge and yielded oxygen efficiencies. In concentrated nitrate electrolyte, this efficiency is >70% for Cu around 1 A/cm2 and decreases to less than 20% at larger current densities, indicating strong Cu dissolution. The reduction of oxygen is due to the formation of supersaturated product films with low water content. Co dissolves in active state without oxygen evolution up to 10 A/cm2 but then shows some tendencies of passivation with oxygen evolution. Mo dissolves as molybdate with 5% oxygen in nitrate and even less in chloride.


jkitchin's tags for this article

Citations (CiTO)

No CiTO relationships defined

X There are no reviews yet

X Posting History


X Export records

Privacy Statement | Terms & Conditions
CiteULike organises scholarly (or academic) papers or literature and provides bibliographic (which means it makes bibliographies) for universities and higher education establishments. It helps undergraduates and postgraduates. People studying for PhDs or in postdoctoral (postdoc) positions. The service is similar in scope to EndNote or RefWorks or any other reference manager like BibTeX, but it is a social bookmarking service for scientists and humanities researchers.