US2025154672A1PendingUtilityA1

Electrode coatings containing nanomaterials or microfibers

79
Assignee: OLIN CORPPriority: Nov 9, 2023Filed: Nov 8, 2024Published: May 15, 2025
Est. expiryNov 9, 2043(~17.3 yrs left)· nominal 20-yr term from priority
Inventors:David W. CawlfieldTheresa BoddieGuy Whitfield
C25B 11/081C25B 11/052C25B 1/26C25B 9/19C25B 11/063C25B 1/46
79
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Claims

Abstract

An electrode for use in electrochemical processes includes a coating layer having nanomaterial or microfibers.

Claims

exact text as granted — not AI-modified
What is claimed is: 
     
         1 . An apparatus comprising:
 an electrode having a core substrate wherein the electrode is in an aqueous solution and producing a product via an electrochemical process; and   a coating layer on the substrate, wherein the coating layer includes nanomaterial.   
     
     
         2 . The apparatus of  claim 1 , wherein the core substrate includes titanium. 
     
     
         3 . The apparatus of  claim 2 , wherein the electrode is a gas-evolving electrode. 
     
     
         4 . The apparatus of  claim 1 , wherein the electrode is a gas-evolving electrode. 
     
     
         5 . The apparatus of  claim 4 , wherein the nanomaterial includes glass microfibers. 
     
     
         6 . The apparatus of  claim 1 , wherein the nanomaterial includes glass microfibers. 
     
     
         7 . The apparatus of  claim 2 , wherein the nanomaterial includes glass microfibers. 
     
     
         8 . The apparatus of  claim 1 , wherein the aqueous solution includes sodium chloride or potassium chloride. 
     
     
         9 . The apparatus of  claim 8 , wherein the nanomaterial includes glass microfibers. 
     
     
         10 . The apparatus of  claim 1 , wherein the coating layer includes one or more precious metal oxides of ruthenium, iridium, osmium, rhodium, platinum, and palladium. 
     
     
         11 . The apparatus of  claim 10 , wherein the coating layer further includes oxides of one or more of titanium, tantalum, zirconium, niobium, hafnium, lanthanides, actinides, and tin. 
     
     
         12 . The apparatus of  claim 2 , wherein the coating layer includes one or more precious metal oxides of ruthenium, iridium, osmium, rhodium, platinum, and palladium. 
     
     
         13 . The apparatus of  claim 12 , wherein the coating layer further includes oxides of one or more of titanium, tantalum, zirconium, niobium, hafnium, lanthanides, actinides, and tin. 
     
     
         14 . The apparatus of  claim 1 , wherein the microfibers have a thickness or diameter of less than about 1 micron and a length of at least 10 times the thickness or diameter. 
     
     
         15 . The apparatus of  claim 2 , wherein the microfibers have a thickness or diameter of less than about 1 micron and a length of at least 10 times the thickness or diameter. 
     
     
         16 . The apparatus of  claim 1 , wherein the coating layer includes an amount of nanomaterial of from between about 2% to about 20% dry weight of the coating. 
     
     
         17 . The apparatus of  claim 1 , wherein the coating layer includes an amount of glass microfibers of from between about 2% to about 20% dry weight of the coating. 
     
     
         18 . The apparatus of  claim 1 , wherein the nanomaterial includes nanoparticles. 
     
     
         19 . The apparatus of  claim 2 , wherein the nanomaterial includes nanoparticles. 
     
     
         20 . The apparatus of  claim 1 , wherein the electrochemical process is a chlor-alkali membrane-cell process or diaphragm-cell process. 
     
     
         21 . The apparatus of  claim 2 , wherein the electrochemical process is a chlor-alkali membrane-cell process or diaphragm-cell process. 
     
     
         22 . The apparatus of  claim 1 , wherein the electrode and aqueous solution produce a salt. 
     
     
         23 . The apparatus of  claim 2 , wherein the electrode and aqueous solution produce a salt. 
     
     
         24 . The apparatus of  claim 1 , wherein the electrode and aqueous solution produce sodium hypochlorite. 
     
     
         25 . The apparatus of  claim 2 , wherein the electrode and aqueous solution produce sodium hypochlorite. 
     
     
         26 . An apparatus comprising:
 an electrode having a core substrate wherein the electrode is in an aqueous solution and producing a product via an electrochemical process; and   a coating layer on the substrate, wherein the coating layer includes microfibers.   
     
     
         27 . The apparatus of  claim 26 , wherein the microfibers include glass microfibers. 
     
     
         28 . The apparatus of  claim 27 , wherein the glass microfibers have a diameter less than 5 microns. 
     
     
         29 . The apparatus of  claim 26 , wherein the microfibers have a diameter less than 10 microns.

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