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Degree of utilization and specific effective surface area of electrocatalysts in porous electrodes

✍ Scribed by K. Mund; F.v. Sturm


Publisher
Elsevier Science
Year
1975
Tongue
English
Weight
644 KB
Volume
20
Category
Article
ISSN
0013-4686

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✦ Synopsis


In the development of electrodes, in addition to the space-time yield it IS often us&l to determine and to establish the degree of utilization of the catalyst. This is particularly important in the case of an expensive or scarce material. To evaluate the catalyst, such terms as the "degree of utilization y" (cd quotient with and without transport limitation) and the "specific ctkctivc surface area J" (product of q and the specific surface area s of the catalyst) are introduced and derived for blpor-ous electrodes.

The given equations denote lhe influence of the pore dlmenxons and the reaction parameters.

The degree of utilkation can be further affected by the electrolytic and electronic resmtance in porous electrodes.


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