Global to push GA events into
skip to main content

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

Other works cited in this record:

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

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

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
  • 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

Similar records in DOepatents and OSTI.GOV collections: