Oxygen reduction on monomeric transition metal phthalocyanines in acid electrolyte

A new method of preparing a rotating ring-disc electrode for the study of carbon supported catalysts

“…Comparison of our results with those of Van Veen and Visser [8] for gas diffusion electrodes prepared from the same carbons show a similar increase in activity due to impregnation of the Norit BRX.…”

“…The results with these electrodes can be compared with those obtained at gas diffusion electrodes [8]. The reduction of oxygen can proceed along two pathways: the direct reduction to water, and the reduction to hydrogen peroxide, which can subs~u~tly be reduced to water.…”

O2 electrocatalysis in acid media on iron naphthalocyanine impregnations

“…This finding is in contrast with ref. 5, in which the presence of basic groups on Norit BrX was found to be required to enhance 0, electrocatalytic activity. In ref.…”

“…As this active charcoal contains basic groups [5] on its surface and possesses a large amount of iron, it is difficult to shed light on the role of the FeNPc/substrate interface bonding on the 0, electrochemical process. In ref.…”

Spectroscopic measurements on metal tetrasulphonato-phthalocyanines

“…The special interest in phthalocyanines originates from their possible use as electrocatalysts in fuel cells [1,2]. In this respect, it is important to know the structure which results after the adsorption of these complexes on carbon and graphite.…”