US 11,987,894 B2
Electrochemical water splitting cell
Abdul Rehman, Dhahran (SA); Abbas Hakeem Saeed, Dhahran (SA); and Muhammad Ali Ehsan, Dhahran (SA)
Assigned to KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed by KING FAHD UNIVERSITY OF PETROLEUM AND MINERALS, Dhahran (SA)
Filed on Dec. 23, 2022, as Appl. No. 18/146,144.
Application 18/146,144 is a continuation of application No. 16/660,160, filed on Oct. 22, 2019, granted, now 11,542,614.
Prior Publication US 2024/0003023 A1, Jan. 4, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C25B 11/073 (2021.01); C01G 31/00 (2006.01); C01G 51/00 (2006.01); C25B 1/04 (2021.01); H01M 4/485 (2010.01); H01M 4/525 (2010.01)
CPC C25B 11/073 (2021.01) [C01G 31/006 (2013.01); C01G 51/42 (2013.01); C25B 1/04 (2013.01); H01M 4/485 (2013.01); H01M 4/525 (2013.01)] 14 Claims
OG exemplary drawing
 
1. An electrochemical water splitting cell, comprising:
an electrolyte vessel containing an electrolyte solution,
a working electrode, and a counter electrode,
wherein the working electrode and the counter electrode are disposed at least partially in the electrolyte vessel and are at least partially immersed in the electrolyte solution contained in the electrolyte vessel,
wherein the working electrode is a composite thin film electrode comprising:
a CoVOx layer having an average thickness of 500 nm-5 μm in contact with a substrate,
wherein the CoVOx layer comprises CoVOx having a Co:V molar ratio in a range of 1.0:1.2-1.5:1.0, and
wherein the CoVOx layer has an O:Co molar ratio and/or an O:V molar ratio in a range of 4:1 to 9:1.