Efficient oxygen storage property of Sr–Fe mixed oxide as automotive catalyst support

2019 ◽  
Vol 7 (3) ◽  
pp. 1013-1021 ◽  
Author(s):  
Kosuke Beppu ◽  
Saburo Hosokawa ◽  
Hiroyuki Asakura ◽  
Kentaro Teramura ◽  
Tsunehiro Tanaka
Keyword(s):  
Catalytic Activity ◽  
Mixed Oxide ◽  
Storage Capacity ◽  
No Reduction ◽  
Catalyst Support ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
High Catalytic Activity ◽  
Wide Range ◽  
Storage Property

Pd/Sr3(Fe0.8Ni0.2)2O7−δ showed a high catalytic activity for NO reduction under a wide range of oxygen concentrations due to the excellent oxygen storage capacity.

Pt/porous nanorods of ceria as efficient high temperature catalysts with remarkable catalytic stability for carbon dioxide reforming of methane

2015 ◽  
Vol 3 (35) ◽  
pp. 18074-18082 ◽  
Author(s):  
Zhiyun Zhang ◽  
Jing Li ◽  
Wei Gao ◽  
Yuanyuan Ma ◽  
Yongquan Qu
Keyword(s):  
Carbon Dioxide ◽  
Thermal Stability ◽  
Catalytic Activity ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
High Catalytic Activity ◽  
Carbon Dioxide Reforming ◽  
Catalytic Stability ◽  
High Oxygen Storage Capacity

Pt/porous nanorods of CeO2 with a large surface area, a high oxygen storage capacity and a remarkable thermal stability exhibit high catalytic activity and stability for the carbon dioxide reforming of methane reaction at 800 °C.

The interplay between ceria particle size, reducibility, and ethanol oxidation activity of ceria-supported gold catalysts

2018 ◽  
Vol 3 (1) ◽  
pp. 75-85 ◽  
Author(s):  
Gregory M. Mullen ◽  
Edward J. Evans ◽  
Benjamin C. Siegert ◽  
Nathan R. Miller ◽  
Benjamin K. Rosselet ◽  
...  
Keyword(s):  
Particle Size ◽  
Catalytic Activity ◽  
Ethanol Oxidation ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Oxidation Activity ◽  
Supported Gold Catalysts ◽  
Supported Gold ◽  
Ceria Particle

The size of ceria particles influenced the activity of Au/CeO2 catalysts for ethanol oxidation, demonstrating a linear correlation between oxygen storage capacity and catalytic activity.

scholarly journals Zr-Ce-Pr-O Mixed Oxide Phases with High Oxygen Storage Capacity (OSC)

2009 ◽  
Vol 73 (4) ◽  
pp. 262-267 ◽  
Author(s):  
Tadatoshi Murota ◽  
Kosuke Sogawa ◽  
Shinya Otsuka-Yao-Matsuo ◽  
Takahisa Omata
Keyword(s):  
Mixed Oxide ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
High Oxygen ◽  
Oxygen Storage ◽  
Oxide Phases ◽  
High Oxygen Storage Capacity

Cu-Doped Zr-Ce-Pr-O Mixed Oxide Phases with High Oxygen Storage Capacity (OSC)

2009 ◽  
Vol 73 (4) ◽  
pp. 268-274 ◽  
Author(s):  
Tadatoshi Murota ◽  
Kosuke Sogawa ◽  
Shinya Otsuka-Yao-Matsuo ◽  
Takahisa Omata
Keyword(s):  
Mixed Oxide ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
High Oxygen ◽  
Oxygen Storage ◽  
Oxide Phases ◽  
High Oxygen Storage Capacity

A catalytic NO reduction in periodic lean and rich excursions over Rh supported on oxygen storage capacity materials

2002 ◽  
Vol 38 (2) ◽  
pp. 101-116 ◽  
Author(s):  
Tadao Nakatsuji ◽  
Juhana Ruotoistenmäki ◽  
Veikko Komppa ◽  
Yosuke Tanaka ◽  
Taiji Uekusa
Keyword(s):  
Storage Capacity ◽  
No Reduction ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage

Synthesis and Characterization of Ce0.5Zr0.5O2 Nanocomposite and its Supported Pd-Only Catalysis Activity

2014 ◽  
Vol 633 ◽  
pp. 77-81
Author(s):  
Dong Xia Yang ◽  
Ping Ning ◽  
Jie Li He ◽  
Jing Fang Zhu ◽  
Ting Ting Zheng ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
X Ray Diffraction ◽  
Fractional Precipitation ◽  
Temperature Programmed ◽  
Co Precipitation ◽  
Redox Ability

The Ce0.5Zr0.5O2 nanocomposites (CZ) were prepared by co-precipitation(CP), fractional precipitation (FP) and fractional precipitation with hydrothermal treatment (FP-HT). The samples were characterized by X-ray diffraction (XRD), Brunauer-Emmet Teller method (BET), H2-temperature programmed reduction (H2-TPR), and thermogravimetric analysis (TG) under H2-N2. XRD results displayed that all samples formed a single solid solution-like ceria-zirconia phase. BET results revealed CZ prepared by FP-HT (CZ-FP-HT) had the highest surface area. H2-TPR and TG analysis under H2-N2 showed CZ-FP-HT exhibited the strongest redox ability and oxygen storage capacity. Moreover, three-way catalysts of Pd-Rh supported on CZ -FP-HT and commercial CZ with same composites were prepared, and their three-way catalytic activity were also studied by engine evaluation. Pd-Rh/CZ-FP-HT showed a bit of higher oxygen storage capacity, catalytic activity and better thermal stability than Pd-Rh/CZ-commercial.

scholarly journals A Cu-added Zr-Ce-Sn-Pr-O mixed oxide phase with a high oxygen storage capacity

2009 ◽  
Vol 165 ◽  
pp. 012090
Author(s):  
Tadatoshi Murota ◽  
Kosuke Sogawa ◽  
Shinya Otsuka-Yao-Matsuo ◽  
Takahisa Omata
Keyword(s):  
Mixed Oxide ◽  
Storage Capacity ◽  
Oxide Phase ◽  
Oxygen Storage Capacity ◽  
High Oxygen ◽  
Oxygen Storage ◽  
High Oxygen Storage Capacity

scholarly journals Effect of Sr on the properties of Ce-Zr-La mixed oxides

2006 ◽  
Vol 71 (3) ◽  
pp. 285-291 ◽  
Author(s):  
Richuan Rao ◽  
LI Lianyong ◽  
LI Fengyi
Keyword(s):  
Mixed Oxide ◽  
Storage Capacity ◽  
Mixed Oxides ◽  
Sol Gel ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
X Ray Diffraction ◽  
Pulse Technique ◽  
X Ray ◽  
Good Thermal Stability

Ce-Zr-La-Sr mixed oxides, with different Sr contents, were prepared by the sol-gel method. In a flow-system microreactor, the reduction properties and the oxygen storage capacity (OSC) of the Ce-Zr-La-Sr mixed oxides were investigated by a temperature programmed reduction (TPR) and a pulse technique. It was shown that the properties of the Ce-Zr-La mixed oxides depend on the Sr content and that the optimum Sr content in the Ce-Zr-La-Sr mixed oxide is 3 mol%. The Ce-Zr-La-Sr mixed oxides doped with 3 mol% Sr (Ce0.52Zr0.4La0.05Sr0.03O1.945) has the largest specific surface area and better reduction properties and oxygen storage capacity in comparison to the other investigated samples. The XRD results of the Ce-Zr-La-Sr mixed oxides showed that their X-ray diffraction patterns are well in agreement with that of fluorite-type CeO2 with Sr ions incorporated into the Ce-Zr-La mixed oxide structures. With increasing calcination temperature, the intensity of the X-ray diffraction peaks increased, but no new peaks were observed. All of these indicate that the synthesized samples had good thermal stability.

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