Reduction reaction of lanthanum-added cerium dioxide with carbon monoxide

Ozawa, Masakuni; Kimura, M.; Isogai, Akio

doi:10.1007/bf00612423

Cited by 22 publications

(6 citation statements)

References 14 publications

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“…For the reaction in this work, Jander's model on solid-gas reaction can be adapted [37]. Ozawa has used this model on the CO oxidation of CeO 2 nanoparticles to calculate the reaction constant, which is represented as [38] ½1 À ð1 À xÞ 1=3 2 ¼ kt,…”

Section: Article In Pressmentioning

confidence: 99%

CTAB assisted hydrothermal synthesis, controlled conversion and CO oxidation properties of CeO2 nanoplates, nanotubes, and nanorods

Pan

Zhang

Shi

2008

Journal of Solid State Chemistry

226

121

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Section: Article In Pressmentioning

confidence: 99%

CTAB assisted hydrothermal synthesis, controlled conversion and CO oxidation properties of CeO2 nanoplates, nanotubes, and nanorods

Pan

Zhang

Shi

2008

Journal of Solid State Chemistry

226

121

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“…The CeO 2 -ZrO 2 solid solution with 20 mole % of Zr was developed to improve the thermal stability of CeO 2 (Ozawa et al, 1991;Ozawa et. al., 1993).…”

Section: Other Metal Oxide Supportsmentioning

confidence: 99%

A short review about NOx storage-reduction catalysts based on metal oxides and hydrotalcite-type anionic clays

Jabłońska¹,

Palomares

Węgrzyn³

et al. 2013

Acta Geodynamica Et Geomaterialia

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The increasing problem of atmospheric pollution by NO x has resulted in stricter regulations on their emissions. NO x storage/reduction (NSR) is considered as efficient catalytic technology to abate lean-burn NO x . A wide variety of catalysts have been extensively examined for this purpose. The use of metal oxides, hydrotalcites and their derivatives as NO x storage/reduction catalysts has been reviewed. Suitable combination particularly the catalytic redox component and the storage component can lead to improved activity in NO x decomposition and capturing under the lean-rich conditions. ARTICLE INFO

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“…ticle size of the core-shell particles, 25) were calculated from thermogravimetric (TG; TGD7000RH-S, ULVAC-Riko Inc.) data 25) assuming that the weight loss by heating was attributable to the combustion of the shell and that the densities of the core and the shell (dc and ds) were 7.22 g/cm 3 (ideal density of cerium oxide calculated from lattice constant: 0.541 nm) 26) and 1.66 g/cm 3 (PVP density), 27) respectively. The average density (dp) of the core-shell nanospheres was obtained using two methods.…”

Section: Jcs-japanmentioning

confidence: 99%

“…(5)). The density of the core-shell nanospheres was calculated to be 4.2 or 4.6 g/cm 3 by the former method, using a core diameter of 88 nm and a shell thickness of 13 nm or from a core diameter of 92 nm and a shell thickness of 11 nm, respectively ( Table 2).…”

Section: Densitymentioning

confidence: 99%

“…The densities obtained by the two different methods are consistent, which indicates the value of the density is reliable. In the former method, it was assumed that the densities of cerium oxide and PVP were 7.22 and 1.66 g/cm 3 , respectively, and the results are indirect evidence that this assumption is true. This means that the core and shell densities are the same as the ideal density of cerium oxide and the density of PVP, respectively.…”

Section: Densitymentioning

confidence: 99%

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Physicochemical properties and microstructures of core-shell type cerium oxide/organic polymer nanospheres

Izu

Itoh

Nishibori

et al. 2009

J. Ceram. Soc. Japan

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Recently, core-shell type spherical nanoparticles (nanospheres) (core: cerium oxide, shell: organic polymer) that have a monodisperse size distribution and disperse easily in water and alcohol have been reported. Core-shell type cerium oxide/organic polymer nanospheres were characterized with respect to physicochemical properties and microstructure. As-prepared nanospheres have no pores with a size of 4 nm or less, while the nanospheres calcined at 600°C had the pores with a size of 4 nm or less. These pores are considered to be on the surface of the core. The as-prepared nanospheres and those calcined at 600°C had size distribution peaks in the range of 20-60 and 70-110 nm, respectively. The specific surface area and total pore volume of the as-prepared nanospheres were 82.8 m 2 /g and 0.211 cm 3 /g, respectively. For core-shell type nanospheres with a size of 114 nm, the diameter of the core particles was 88-92 nm and the thickness of the shell was 11-13 nm. Transmission electron microscopy images revealed that the core had dense structure. The average density of the core-shell type nanospheres was in the range of 4.2-4.6 g/cm 3 .

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Reduction reaction of lanthanum-added cerium dioxide with carbon monoxide

Cited by 22 publications

References 14 publications

CTAB assisted hydrothermal synthesis, controlled conversion and CO oxidation properties of CeO2 nanoplates, nanotubes, and nanorods

CTAB assisted hydrothermal synthesis, controlled conversion and CO oxidation properties of CeO2 nanoplates, nanotubes, and nanorods

A short review about NOx storage-reduction catalysts based on metal oxides and hydrotalcite-type anionic clays

Physicochemical properties and microstructures of core-shell type cerium oxide/organic polymer nanospheres

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