Structure evolution of nanocrystalline Ce1−xPdxO2−y mixed oxide in oxidizing and reducing atmosphere: Reduction-induced activity in low-temperature CO oxidation

Structure and thermal stability of nanocrystalline Ce1−xRhxO2−y in reducing and oxidizing atmosphere

“…1a). Observed decrease of the mean crystallite size of ceria with increasing amount of doping was reported before for similar systems [15,18].…”

“…[15,16]. Triton X-100 was used as a non-ionic surfactant and cyclohexane and 1-pentanol as an organic phase.…”

“…The oxides were obtained using microemulsion method, which, as it has been reported recently for Ce 1Àx Pd x O 2Ày , allows to obtain small, homogeneous nanocrystals with narrow size distribution [15]. The results of this study on structure evolution during heating in reducing and oxidizing atmosphere are important because of potential applications of Ce 1Àx Rh x O 2Ày as active catalysts.…”

Solid-State Method Toward PdO-CeO2 Coated Monolith Catalysts for Oxygen Elimination Under Excess Methane

“…The stability of these catalysts benefits to ''intelligent catalysts'' theory [19]: when materials are applied in catalytic converters, environmental fluctuations due to the engine cycles cause the Pd to migrate into and out of the host reservoir. Extrusion of Pd 0 from the lattice in the form of small particles takes place under reducing conditions; however under oxidizing conditions, where the particles would sinter and lose surface area, they are eventually re-absorbed into the host lattice [20].…”

Introductory Chapter: Microemulsions

“…Recently, bimetallic nanocatalysts comprising Cu and Ni were formed using reserved microemulsions where they altered the microemulsion composition to obtain different sizes of bimetallic particles [50]. Narrow size distribution and regular shape are two other important attributes of metallic nanoparticles synthesized using the reversed microemulsion method [51][52][53]. In addition to inorganic nanoparticles, organic nanoparticles such as cholesterol and rhovanil have been prepared successfully using microemulsions.…”