US 11,673,126 B2
Cluster-supporting porous carrier and method for producing same
Yoshihiro Takeda, Nagoya (JP); Namiki Toyama, Nagoya (JP); Kazuhiro Egashira, Nagoya (JP); Toshiaki Tanaka, Nagoya (JP); Seitoku Ito, Nagoya (JP); and Masahiko Ichihashi, Nagoya (JP)
Assigned to TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and GENESIS RESEARCH INSTITUTE, INC., Nagoya (JP)
Appl. No. 16/620,055
Filed by TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota (JP); and GENESIS RESEARCH INSTITUTE, INC., Nagoya (JP)
PCT Filed Jun. 27, 2018, PCT No. PCT/JP2018/024459
§ 371(c)(1), (2) Date Dec. 6, 2019,
PCT Pub. No. WO2019/004318, PCT Pub. Date Jan. 3, 2019.
Claims priority of application No. JP2017-125685 (JP), filed on Jun. 27, 2017.
Prior Publication US 2021/0077986 A1, Mar. 18, 2021
Int. Cl. B01J 35/00 (2006.01); B01J 29/44 (2006.01); B01D 53/86 (2006.01); B01J 29/46 (2006.01); B01J 37/34 (2006.01); F01N 3/10 (2006.01)
CPC B01J 29/44 (2013.01) [B01D 53/86 (2013.01); B01J 29/46 (2013.01); B01J 35/0006 (2013.01); B01J 37/349 (2013.01); F01N 3/10 (2013.01)] 9 Claims
 
1. A method for producing a cluster-supporting porous carrier, wherein:
the cluster-supporting porous carrier has porous carrier particles and metal oxide clusters supported within the pores of the porous carrier particles, and
the method for producing a cluster-supporting porous carrier includes the following steps:
providing a dispersion containing a dispersing medium and porous carrier particles dispersed in the dispersing medium, and
forming positively charged metal oxide clusters in the dispersion by plus-minus inversion or submerged reduction and supporting the metal oxide clusters within the pores of the porous carrier particles by electrostatic interaction,
wherein the metal ion forming the metal oxide is reduced by submerged reduction using a reducing agent to form clusters in the dispersion, and the dispersion is irradiated with plasma and/or microwaves to accelerate reduction by the reducing agent, and
the dispersing medium of the dispersion is an organic solvent having a dielectric constant of 30 or less.