A valve metal anode, for electrolytical processes, having an electron-active covering layer, is prepared by anchoring electron-activating substances, counteracting passivation of the anode, in a sintered porous carrier layer of valve metal. The carrier layer which is sintered onto the cleaned valve metal...http://www.google.es/patents/US4138510?utm_source=gb-gplus-sharePatente US4138510 - Metal anode for electrochemical processing and method of making same
Metal anode for electrochemical processing and method of making same
