Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells

Wang, Xudong; Li, Zhaodong; Cai, Zhiyong; Yao, Chunhua

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:: Wang, Xudong; Li, Zhaodong; Cai, Zhiyong; Yao, Chunhua

Issue Date:: 2017-05-02

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):: C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS

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

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C - CHEMISTRY C25 - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES C25B - ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON-METALS
C25B11/04 - characterised by the material
C25B15/08 - Supplying or removing reactants or electrolytes

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
Y02E60/36 - Hydrogen production from non-carbon containing sources

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
Y02P20/133 - Renewable energy sources

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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.

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                    Wang, Xudong, Li, Zhaodong, Cai, Zhiyong, & Yao, Chunhua. Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells.  United States.

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                    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.

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@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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Title: Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells

Abstract

Citation Formats

Homeoporous Electrode for Electrochemical Devices, Method of Its Manufacture, and Fuel Cell Incorporating Such Electrodes patent, October 1967

Electrochemical reference cell with improved liquid junction patent, September 1978

Hydrogel oxygen generator with improved fluid flow patent, August 1983

Passive hydrogel fuel generator patent, April 1985

Planar reference electrode patent-application, October 2001

Stress-induced bandgap-shifted semiconductor photoelectrolytic/photocataly- tic/photovoltaic surface and method for making same patent-application, December 2003

Preparation of Nano-Tubular Titania Substrate With Oxygen Vacancies and Their Use In Photo-Electrolysis of Water patent-application, July 2009

Bacterial cellulose film and carbon nanotubes-like thin film structures developed from bacterial cellulose patent-application, December 2009

Composite Materials Including an Intrinsically Conducting Polymer, and Methods and Devices patent-application, October 2010

Porous Membrane and Process for Preparing the Same patent-application, October 2013

Cellulose-Based Materials Comprising Nanofibrillated Cellulose From Native Cellulose patent-application, March 2014

Porous Composite Structures For Lithium-Ion Battery Separators patent-application, February 2015

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

Homeoporous Electrode for Electrochemical Devices, Method of Its Manufacture, and Fuel Cell Incorporating Such Electrodes
patent, October 1967

Electrochemical reference cell with improved liquid junction
patent, September 1978

Hydrogel oxygen generator with improved fluid flow
patent, August 1983

Passive hydrogel fuel generator
patent, April 1985

Planar reference electrode
patent-application, October 2001

Stress-induced bandgap-shifted semiconductor photoelectrolytic/photocataly- tic/photovoltaic surface and method for making same
patent-application, December 2003

Preparation of Nano-Tubular Titania Substrate With Oxygen Vacancies and Their Use In Photo-Electrolysis of Water
patent-application, July 2009

Bacterial cellulose film and carbon nanotubes-like thin film structures developed from bacterial cellulose
patent-application, December 2009

Composite Materials Including an Intrinsically Conducting Polymer, and Methods and Devices
patent-application, October 2010

Porous Membrane and Process for Preparing the Same
patent-application, October 2013

Cellulose-Based Materials Comprising Nanofibrillated Cellulose From Native Cellulose
patent-application, March 2014

Porous Composite Structures For Lithium-Ion Battery Separators
patent-application, February 2015

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