Anode for electrolysis and method of electrolytically synthesizing fluorine-containing substance using the anode for electrolysis

Abstract

The present invention provides an electrode for electrolysis, wherein the electrode comprises: a substrate comprising an electrically conductive material, wherein the surface of the substrate is made of glassy carbon; and an electrically conductive diamond film with which at least part of the substrate is coated.

1 . An electrode for electrolysis, which comprises:
 a substrate comprising an electrically conductive material, wherein the surface of the substrate is made of glassy carbon; and   an electrically conductive diamond film with which at least part of the substrate is coated.   
   
   
       2 . A method of electrolytically synthesizing fluorine or a fluorine-containing compound, wherein the method comprises conducting electrolysis using the electrode for electrolysis according to  claim 1  in an electrolytic bath comprising hydrofluoric acid and, added thereto, a substance to be fluorinated. 
   
   
       3 . The method of electrolytically synthesizing fluorine or a fluorine-containing compound according to  claim 2 , wherein the electrolytic bath further comprises a fluoride of an alkali metal or a fluoride of an alkaline earth metal as a conduction aid. 
   
   
       4 . The method of electrolytically synthesizing fluorine or a fluorine-containing compound according to  claim 2  or  claim 3 , wherein the electrolytic bath has a molar concentration of hydrofluoric acid which is at least 3 times the molar concentration of the substance to be fluorinated or of the conduction aid in the electrolytic bath.