FIELD: chemistry.
SUBSTANCE: invention relates to cerium oxide particles used as a catalyst or co-catalyst material. Cerium oxide particles have a specific surface area of 45 to 80 m2/g after calcination at 900°C for 5 hours in air and a specific surface area of 75 to 90 m2/g after calcination at 700°C for 4 hours in a gas atmosphere containing 10 vol.% О2, 10 vol.% Н2О, and the rest N2. Invention also relates to a method of synthesis of such cerium oxide particles and to an exhaust gas purification catalyst using said cerium oxide particles.
EFFECT: improved heat resistance and adsorption and desorption capacity.
28 cl, 3 tbl, 5 ex
| Title |
Year |
Author |
Number |
| CERIUM OXIDE PARTICLES AND A METHOD FOR PRODUCTION THEREOF |
2015 |
- Ocampo, Fabien
- Okazumi, Mitsuhiro
- Ohtake, Naotaka
|
RU2688852C2 |
| MIXED CERIUM AND ZIRCONIUM OXIDES |
2016 |
- Ifrah, Simon
- Li, Wei
- Buissette, Valerie
- Denaire, Stephane
- Marques, Rui
|
RU2707888C1 |
| NANOMETRIC CERIUM OXIDE-BASED COMPOSITION ON HIGH REDUCING POWER SUPPORT, PREPARATION METHOD THEREOF AND USE AS CATALYST |
2007 |
- Fazhardi Frank
- Verd'E Stefan
|
RU2411995C2 |
| PRECIPITATED AND CALCINED COMPOSITION BASED ON ZIRCONIUM OXIDE AND CERIUM OXIDE |
2014 |
- Okhtake Naotaka
- Sasaki Tosikhiro
- Tokuda Dzun
- Roar Emmanyuel
|
RU2648072C2 |
| COMPLEX OXIDE AND PROCESS FOR ITS PREPARATION, AND R EXHAUST GAS PURIFICATION CATALYST |
2010 |
- Okhtake Naotaka
- Jokota Kazukhiko
|
RU2621341C2 |
| COMPOSITION, BASED ON ZIRCONIUM OXIDE AND AT LEAST ONE OXIDE OF RARE-EARTH ELEMENT, DIFFERENT FROM CERIUM, WITH PARTICULAR POROSITY, METHODS OF THEREOF OBTAINING AND THEREOF APPLICATION IN CATALYSTS |
2011 |
|
RU2570810C2 |
| METHOD OF PREPARING CATALYST FOR PURIFICATION OF EXHAUST GASES OF COMBUSTION ENGINES AND CATALYST OBTAINED THEREOF |
2012 |
- Solntsev Konstantin Aleksandrovich
- Drobakha Elena Alekseevna
- Drobakha Grigorij Sergeevich
- Drobakha Sergej Aleksandrovich
|
RU2502561C1 |
| MIXED OXIDE BASED ON CERIUM AND ZIRCONIUM |
2017 |
- Jorge Coelho Marques, Rui Miguel
- Ifrah, Simon
- Chabert, Boris
|
RU2753046C2 |
| COMPOSITION BASE ON OXIDES OF ZIRCONIUM, CERIUM, YTTRIUM, LANTHANUM AND OTHER RARE-EARTH METALS, METHOD OF ITS PRODUCTION AND USE IN CATALYSIS |
2007 |
- Ljarshe Oliv'E
- Verd'E Stefan
- Roar Ehmmanjuehl'
- Khuan Ajmin
|
RU2398629C2 |
| COMPOSITE OXIDE, METHOD FOR PRODUCING SAME AND CATALYST FOR EXHAUST GAS PURIFICATION |
2012 |
- Roar Emmanyuel
- Okhtake Naotaka
|
RU2647589C2 |
