Title:
PHOTOCATALYST ELECTRODE AND METHOD FOR PRODUCING PHOTOCATALYST ELECTRODE
Document Type and Number:
WIPO Patent Application WO/2019/216284
Kind Code:
A1
Abstract:
The present invention provides a photocatalyst electrode in which hematite-type crystal particles are less likely to be detached from a base material than ever before and which has a higher catalytic activity than ever before. The production of a photocatalyst electrode can be achieved by a method comprising: an in-process particle formation step of heating a raw material solution, in which a hematite raw material is dispersed in a raw material solvent, for a period longer than 12 hours in a hermetically sealed container to form in-process particles; and a firing step of firing the in-process particles. In this manner, a photocatalyst electrode having a high catalytic activity can be produced.
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Inventors:
TACHIKAWA TAKASHI (JP)
TOZAWA TOMOKAZU (JP)
TOZAWA TOMOKAZU (JP)
Application Number:
PCT/JP2019/018064
Publication Date:
November 14, 2019
Filing Date:
April 26, 2019
Export Citation:
Assignee:
UNIV KOBE NAT UNIV CORP (JP)
KANEKA CORP (JP)
KANEKA CORP (JP)
International Classes:
B01J35/02; B01J23/745; C25B11/06
Domestic Patent References:
| WO2014119117A1 | 2014-08-07 |
Foreign References:
| CN107051465A | 2017-08-18 | |||
| CN103693861A | 2014-04-02 | |||
| CN104150541A | 2014-11-19 | |||
| CN107268022A | 2017-10-20 |
Other References:
DALLE CARBONARE, N. ET AL.: "Hematite Photoanodes Modified with an FeIII Water Oxidation Catalyst", CHEMPHYSCHEM, vol. 15, no. 6, 18 March 2014 (2014-03-18), pages 1164 - 1174, XP055653769
ZHENG, C. ET AL.: "NaF-assisted hydrothermal synthesis of Ti-doped hematite nanocubes with enhanced photoelectrochemical activity for water splitting", APPLIED SURFACE SCIENCE, vol. 359, 31 October 2015 (2015-10-31), pages 805 - 811, XP029339987, DOI: 10.1016/j.apsusc.2015.10.170
YU , J. ET AL.: "Hydrothermal Synthesis and Visible-light Photocatalytic Activity of Novel Cage-like Ferric Oxide Hollow Spheres", CRYSTAL GROWTH & DESIGN, vol. 9, no. 3, 16 January 2009 (2009-01-16), pages 1474 - 1480, XP055653770
ZHENG, C. ET AL.: "NaF-assisted hydrothermal synthesis of Ti-doped hematite nanocubes with enhanced photoelectrochemical activity for water splitting", APPLIED SURFACE SCIENCE, vol. 359, 31 October 2015 (2015-10-31), pages 805 - 811, XP029339987, DOI: 10.1016/j.apsusc.2015.10.170
YU , J. ET AL.: "Hydrothermal Synthesis and Visible-light Photocatalytic Activity of Novel Cage-like Ferric Oxide Hollow Spheres", CRYSTAL GROWTH & DESIGN, vol. 9, no. 3, 16 January 2009 (2009-01-16), pages 1474 - 1480, XP055653770
Attorney, Agent or Firm:
FUJITA Takashi et al. (JP)
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