US 12,325,015 B2
Cerium dioxide-supported low-dose PtCu ultrafine alloy catalyst, preparation method and application thereof
Taicheng An, Guangdong (CN); Jiejing Kong, Guangdong (CN); and Guiying Li, Guangdong (CN)
Assigned to GUANGDONG UNIVERSITY OF TECHNOLOGY, Guangdong (CN)
Filed by GUANGDONG UNIVERSITY OF TECHNOLOGY, Guangdong (CN)
Filed on Jun. 11, 2021, as Appl. No. 17/344,989.
Application 17/344,989 is a continuation in part of application No. PCT/CN2020/133945, filed on Dec. 4, 2020.
Claims priority of application No. 201911011055.1 (CN), filed on Oct. 23, 2019.
Prior Publication US 2022/0111364 A1, Apr. 14, 2022
Int. Cl. B01J 23/89 (2006.01); B01D 53/00 (2006.01); B01D 53/86 (2006.01); B01J 8/06 (2006.01); B01J 19/14 (2006.01); B01J 23/10 (2006.01); B01J 35/39 (2024.01); B01J 37/00 (2006.01); B01J 37/04 (2006.01); B01J 37/06 (2006.01); B01J 37/08 (2006.01)
CPC B01J 23/8926 (2013.01) [B01D 53/007 (2013.01); B01D 53/8668 (2013.01); B01J 8/067 (2013.01); B01J 19/14 (2013.01); B01J 23/10 (2013.01); B01J 35/39 (2024.01); B01J 37/0072 (2013.01); B01J 37/009 (2013.01); B01J 37/04 (2013.01); B01J 37/06 (2013.01); B01J 37/082 (2013.01); B01D 2255/1021 (2013.01); B01D 2255/20761 (2013.01); B01D 2255/802 (2013.01); B01D 2257/7022 (2013.01); B01D 2257/708 (2013.01)] 8 Claims
OG exemplary drawing
 
1. A preparation method of a cerium dioxide-supported low-dose PtCu ultrafine alloy catalyst, comprising the following steps:
step S1, mixing chloroplatinic acid, copper acetate, and oleylamine, and dripping ethylene glycol while stirring to obtain a solution A;
step S2, heating the solution A in an oil bath under protection of argon, and cooling to 30° C. to obtain a solution B;
step S3, centrifuging the solution B to obtain a solid-phase substance C; and washing and purifying the solid-phase substance C to obtain a solid-phase substance D; and
step S4, dissolving the solid-phase substance D in n-butylamine to obtain a solution E; immersing cerium dioxide powder in the solution E, magnetically stirring in a dark place, centrifuging to obtain a solid-phase substance F, and washing with alcohol and drying in vacuum to obtain the cerium dioxide-supported low-dose PtCu ultrafine alloy catalyst.