Title:
POROUS IRON OXIDE CATALYST BODY
Document Type and Number:
WIPO Patent Application WO/2019/239936
Kind Code:
A1
Abstract:
The present invention provides a porous catalyst body characterized by containing: a porous body, in which flakes containing iron oxide, at least some of which is in a polycrystalline state, are formed by being aggregated in a state whereby a plurality of voids that connect to the outside are present and the flakes have fine pores formed by one void being linked to another void; and oxide catalyst particles which are supported in the fine pores and which contain at least one type selected from the group consisting of a noble metal, an oxide of the noble metal and an alloy of the noble metal and a transition metal, with the flakes having a thickness of 5-20 nm and a maximum length of 50-500 nm. The present invention is capable of providing a catalyst body which can suppress a decrease in catalytic activity at an increased flow rate.
Inventors:
NIIMI NAO (JP)
JIKIHARA YOUHEI (JP)
NAKAYAMA TSURUO (JP)
YAMAUCHI YUSUKE (JP)
JIKIHARA YOUHEI (JP)
NAKAYAMA TSURUO (JP)
YAMAUCHI YUSUKE (JP)
Application Number:
PCT/JP2019/021928
Publication Date:
December 19, 2019
Filing Date:
June 03, 2019
Export Citation:
Assignee:
NBC MESHTEC INC (JP)
NAT INST MATERIALS SCIENCE (JP)
NAT INST MATERIALS SCIENCE (JP)
International Classes:
A61L9/01; B01J23/89; B01D53/94; B01J35/04; F01N3/10; F01N3/28
Foreign References:
| JP2011213572A | 2011-10-27 | |||
| JP4031168B2 | 2008-01-09 | |||
| JPH09262473A | 1997-10-07 | |||
| JPH09225318A | 1997-09-02 |
Other References:
HUANG, XING ET AL.: "Flower-like porous hematite nanoarchitectures achieved by complexation- mediated oxidation-hydrolysis reaction", JOURNAL OF COLLOID AND INTERFACE SCIENCE, vol. 357, no. 1, 1 February 2011 (2011-02-01), pages 36 - 45, XP028162254, ISSN: 0021-9797, DOI: 10.1016/j.jcis.2011.02.001
WANG, DAN ET AL.: "Three-dimensional flower like iron oxide nanostructures: Morphology, composition and metal ion removal capability", MATERIALS RESEARCH BULLETIN, vol. 73, 2016, pages 56 - 64, XP055664797, ISSN: 0025-5408, DOI: 10.1016/j.materresbull.2015.08.008
TANAKA, SHUNSUKE ET AL.: "Gold nanoparticles supported on mesoporous iron oxide for enhanced CO oxidation reaction", NANOSCALE, vol. 10, 22 February 2018 (2018-02-22), pages 4779 - 4785, XP055664803, ISSN: 2040-3364, DOI: 10.1039/C7NR08895G
WANG, DAN ET AL.: "Three-dimensional flower like iron oxide nanostructures: Morphology, composition and metal ion removal capability", MATERIALS RESEARCH BULLETIN, vol. 73, 2016, pages 56 - 64, XP055664797, ISSN: 0025-5408, DOI: 10.1016/j.materresbull.2015.08.008
TANAKA, SHUNSUKE ET AL.: "Gold nanoparticles supported on mesoporous iron oxide for enhanced CO oxidation reaction", NANOSCALE, vol. 10, 22 February 2018 (2018-02-22), pages 4779 - 4785, XP055664803, ISSN: 2040-3364, DOI: 10.1039/C7NR08895G
Attorney, Agent or Firm:
MIZUNO, Katsufumi et al. (JP)
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