Method for producing gas diffusion electrodes

Catalyst – solid sorbent – or support therefor: product or process – Catalyst or precursor therefor – Making catalytic electrode – process only

Reexamination Certificate

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C429S047000

Reexamination Certificate

active

10481775

ABSTRACT:
With the help of a method for production of a gaseous diffusion electrode from a silver catalyst on PTFE-substrate, it is endeavored to achieve results which can be reproduced, by avoiding the disadvantages of the state-of-the-art technology, whereby this is achieved in thatthe porous system of the silver catalyst is filled with a wetted fluid;a dimension-stable solid body with a grain size above that of the silver catalyst is mixed below the silver catalyst;the thus compression-stable mass is shaped into a homogenous catalyst band in a calender; andin a second calender step, an electrically conductive conductor material is imprinted into the catalyst band.

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