Showing papers by "Andrew Hamnett published in 1985"
TL;DR: In this paper, the authors used carbon electrodes as cathodes in alkaline air fuel cells with some success, and showed that the activity of carbon can be enhanced onsiderably by impregnation with a suitable catalyst.
Abstract: Carbon electrodes have been used as cathodes in alkaline air fuel cells with some success [1-3]. The material is reasonably durable though forms that yield significant concentrations of hydrogen peroxide are slowly degraded. However, the activity of carbon can be enhanced onsiderably by impregnation with a suitable catalyst. The most ffective of these catalysts to date have proved to be noble metals uch as platinum, and 7-15 wt % platinum is commonly sed.This is a very costly route, and macrocyclic ransition-metal derivatives have also been explored as less expensive alternatives [4, 5], either as films on metallic substrates or impregnated on various forms of carbon.
13 citations
TL;DR: Mesure de l'epaisseur et des proprietes optiques des films obtenus par polymerisation electrochimique anodique as mentioned in this paper, et al.
7 citations
Patent•
06 Sep 1985
TL;DR: In this paper, an electrode for reducing oxygen has a substrate of low-ash carbon, such as coconut shells converted to charcoal, loaded with a catalyst such as (i) platinum phtalocyanine or (ii) lead-ruthenium oxide.
Abstract: An electrode for reducing oxygen has a substrate of low-ash carbon, such as coconut shells converted to charcoal. The substrate is loaded with a catalyst such as (i) platinum phtalocyanine or (ii) lead-ruthenium oxide. In case (ii), to make the electrode, lead ions are adsorbed onto the substrate, which is then treated with a solution of ruthenium (VI) oxide, to precipitate the catalyst on the substrate.
2 citations