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Title: Capillary photoelectrode structures for photoelectrochemical and photocatalytic cells

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:
OSTI Identifier:
1354804
Assignee:
The United States of America as Represented by the Secretary of Agriculture CHO
Patent Number(s):
9,637,830
Application Number:
14/166,740
Contract Number:
SC0008711
Resource Relation:
Patent File Date: 2014 Jan 28
Research Org:
The United States of America as Represented by the Secretary of Agriculture, Washington, CT (United States)
Sponsoring Org:
USDOE
Country of Publication:
United States
Language:
English
Subject:
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY; 14 SOLAR ENERGY; 30 DIRECT ENERGY CONVERSION

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
  • Saito, Tsuguyuki; Hirota, Masayuki; Tamura, Naoyuki
  • Biomacromolecules, Vol. 10, Issue 7, p. 1992-1996
  • DOI: 10.1021/bm900414t

Passivating surface states on water splitting hematite photoanodes with alumina overlayers
journal, January 2011
  • Le Formal, Florian; Tétreault, Nicolas; Cornuz, Maurin
  • Chemical Science, Vol. 2, Issue 4, p. 737-743
  • DOI: 10.1039/C0SC00578A

Capacitance-voltage measurements and flat-band potential determination on Zr-doped α-Fe2O3 single-crystal electrodes
journal, December 1983
  • Horowitz, Gilles
  • Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, Vol. 159, Issue 2, p. 421-436
  • DOI: 10.1016/S0022-0728(83)80638-X

The photoelectrochemistry of niobium doped α-Fe2O3
journal, October 1988
  • Sanchez, C.; Sieber, K. D.; Somorjai, G. A.
  • Journal of Electroanalytical Chemistry and Interfacial Electrochemistry, Vol. 252, Issue 2, p. 269-290
  • DOI: 10.1016/0022-0728(88)80216-X

Electrochemistry and photoelectrochemistry of iron(III) oxide
journal, January 1983
  • Dare-Edwards, Martin P.; Goodenough, John B.; Hamnett, Andrew
  • Journal of the Chemical Society, Faraday Transactions 1: Physical Chemistry in Condensed Phases, Vol. 79, Issue 9, 2027
  • DOI: 10.1039/F19837902027