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Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells

United States Patent

9,637,830
May 2, 2017
View the Complete Patent at the US Patent & Trademark Office
U.S. Department of Energy - Visit the Office of the Assistant General Counsel for Technology Transfer & Intellectual Property Website
Photocatalytic structures having a capillary-force based electrolyte delivery system are provided. Also provided are photoelectrochemical and photocatalytic cells incorporating the structures and methods for using the cells to generate hydrogen and/or oxygen from water. The photocatalytic structures use an electrolyte-transporting strip comprising a porous network of cellulose nanofibers to transport electrolyte from a body of the electrolyte to a porous photoelectrode or a porous photocatalytic substrate via capillary force.
Wang; Xudong (Middleton, WI), Li; Zhaodong (Shaanxi, CN), Cai; Zhiyong (Madison, WI), Yao; Chunhua (Jiangxi, CN)
The United States of America as Represented by the Secretary of Agriculture (Washington, CT)
14/ 166,740
20150211134
January 28, 2014
REFERENCE TO GOVERNMENT RIGHTS This invention was made with government support under grant number DE-SC0008711 awarded by the Department of Energy. The government has certain rights in the invention.