Reagent Delivery using a Membrane-Mediated Process

Methods and apparatuses for using a semi-permeable membrane to deliver a reagent to a surface in a topographically selective manner are provided. The methods and apparatuses are particularly useful for removing sulfur-containing electrocatalysts from copper surfaces using a semi-permeable membrane t...

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Bibliographische Detailangaben
1. Verfasser:	MAZUR STEPHEN
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL METALLURGY MULTI-STEP PROCESSES FOR SURFACE TREATMENT OF METALLICMATERIAL INVOLVING AT LEAST ONE PROCESS PROVIDED FOR IN CLASSC23 AND AT LEAST ONEPROCESS COVERED BY SUBCLASS C21D OR C22F OR CLASS C25 NON-MECHANICAL REMOVAL OF METALLIC MATERIAL FROM SURFACE
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Beschreibung
Zusammenfassung:	Methods and apparatuses for using a semi-permeable membrane to deliver a reagent to a surface in a topographically selective manner are provided. The methods and apparatuses are particularly useful for removing sulfur-containing electrocatalysts from copper surfaces using a semi-permeable membrane to deliver an oxidizing agent to a catalyst-coated surface.