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Title: Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells

Abstract

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.

Inventors:
; ; ;
Issue Date:
Research Org.:
The United States of America as Represented by the Secretary of Agriculture, Washington, CT (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1354804
Patent Number(s):
9637830
Application Number:
14/166,740
Assignee:
The United States of America as Represented by the Secretary of Agriculture
Patent Classifications (CPCs):
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02E - REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
Y - NEW / CROSS SECTIONAL TECHNOLOGIES Y02 - TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE Y02P - CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
DOE Contract Number:  
SC0008711
Resource Type:
Patent
Resource Relation:
Patent File Date: 2014 Jan 28
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 14 SOLAR ENERGY; 30 DIRECT ENERGY CONVERSION

Citation Formats

Wang, Xudong, Li, Zhaodong, Cai, Zhiyong, and Yao, Chunhua. Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells. United States: N. p., 2017. Web.
Wang, Xudong, Li, Zhaodong, Cai, Zhiyong, & Yao, Chunhua. Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells. United States.
Wang, Xudong, Li, Zhaodong, Cai, Zhiyong, and Yao, Chunhua. Tue . "Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells". United States. https://www.osti.gov/servlets/purl/1354804.
@article{osti_1354804,
title = {Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells},
author = {Wang, Xudong and Li, Zhaodong and Cai, Zhiyong and Yao, Chunhua},
abstractNote = {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.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2017},
month = {5}
}

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Works referenced in this record:

Resin impregnation of cellulose nanofibril films facilitated by water swelling
journal, February 2013


Individualization of Nano-Sized Plant Cellulose Fibrils by Direct Surface Carboxylation Using TEMPO Catalyst under Neutral Conditions
journal, July 2009


Passivating surface states on water splitting hematite photoanodes with alumina overlayers
journal, January 2011


Capacitance-voltage measurements and flat-band potential determination on Zr-doped α-Fe2O3 single-crystal electrodes
journal, December 1983


The photoelectrochemistry of niobium doped α-Fe2O3
journal, October 1988


Electrochemistry and photoelectrochemistry of iron(III) oxide
journal, January 1983

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