Cerium Oxide Nanorods with Unprecedented Low-Temperature Oxygen Storage Capacity

2015 ◽  
Vol 28 (7) ◽  
pp. 1467-1471 ◽  
Author(s):  
Yoshifumi Ishikawa ◽  
Maiki Takeda ◽  
Susumu Tsukimoto ◽  
Koji S. Nakayama ◽  
Naoki Asao
Keyword(s):  
Low Temperature ◽  
Cerium Oxide ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Oxide Nanorods

Extra-Low-Temperature Oxygen Storage Capacity of CeO2Nanocrystals with Cubic Facets

Nano Letters ◽  
2011 ◽  
Vol 11 (2) ◽  
pp. 361-364 ◽  
Author(s):  
Jing Zhang ◽  
Hitoshi Kumagai ◽  
Kae Yamamura ◽  
Satoshi Ohara ◽  
Seiichi Takami ◽  
...  
Keyword(s):  
Low Temperature ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage

Overview: Modification of Cerium Oxide in Three-Way Catalysts

2014 ◽  
Vol 575 ◽  
pp. 97-102 ◽  
Author(s):  
M. Nazri Abu Shah ◽  
S. Hanim Md Nor ◽  
Kamariah Noor Ismail ◽  
Abdul Hadi
Keyword(s):  
Thermal Stability ◽  
Rare Earth ◽  
Metal Oxides ◽  
Cerium Oxide ◽  
Storage Capacity ◽  
Rare Earth Metals ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Alkaline Metals ◽  
Three Way Catalyst

An overview of modification of cerium oxide, CeO2which is employed in the three-way catalyst (TWCs) is presented in this article. The modifications of cerium oxide, CeO2incorporated with the metal oxides for the improvement of thermal stability, microstructure and oxygen storage capacity (OSC) are discussed. In view of that, the types of metal oxide are grouped into transition metals, rare earth metals, and alkaline metals and the effect of each group into cerium oxide, CeO2are elaborated.

A Study on Oxygen Storage Capacity of Zirconium-Cerium-Oxide Nanoparticles

2013 ◽  
Vol 685 ◽  
pp. 123-127 ◽  
Author(s):  
Ajin C. Sajeevan ◽  
V. Sajith
Keyword(s):  
Cerium Oxide ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Precipitation Method ◽  
Xrd Pattern ◽  
Harmful Emissions ◽  
Uv Visible ◽  
Co Precipitation

One of the methods for the reduction of harmful emissions from diesel engines such as hydrocarbon, soot and NOx is the use of fuel born catalyst Cerium oxide. The oxygen storage capacity of Cerium oxide can be improved by coating it with metal such as Zirconium. Zr – Ce-O nanoparticles were synthesized by Co-precipitation method in the present work. Dynamic Light scattering, XRD pattern and UV-Visible spectroscopy were used for characterization of the prepared samples. Thermo gravimetric studies were conducted to investigate the thermal decomposition of Zr-Ce-O nanoparticles. The oxygen storage capacity of Zr-Ce-O nanoparticles was analyzed using TPR analysis.

A low-temperature method for measuring oxygen storage capacity of ceria-containing oxides

2016 ◽  
Vol 6 (15) ◽  
pp. 5891-5898 ◽  
Author(s):  
A. V. Porsin ◽  
E. A. Alikin ◽  
V. I. Bukhtiyarov
Keyword(s):  
Low Temperature ◽  
Co Oxidation ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Temperature Method ◽  
P Addition

Addition of Pt/Al2O3 to a ceria-containing oxide allows studying oxygen storage capacity at lower temperatures. The advantage is achieved through separation of functions of oxygen storage/release and CO oxidation.

Shape-Selective Oriented Cerium Oxide Nanocrystals Permit Assessment of the Effect of the Exposed Facets on Catalytic Activity and Oxygen Storage Capacity

2015 ◽  
Vol 7 (16) ◽  
pp. 8545-8555 ◽  
Author(s):  
Thadathil S. Sreeremya ◽  
Asha Krishnan ◽  
Kottayilpadi C. Remani ◽  
Kashinath R. Patil ◽  
Dermot F. Brougham ◽  
...  
Keyword(s):  
Catalytic Activity ◽  
Cerium Oxide ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Shape Selective ◽  
Exposed Facets

Rational Synthesis Concept for Cerium Oxide Nanoparticles: On the Impact of Particle Size on the Oxygen Storage Capacity

2020 ◽  
Vol 124 (16) ◽  
pp. 8736-8748 ◽  
Author(s):  
Elifkübra Özkan ◽  
Pascal Cop ◽  
Felix Benfer ◽  
Alexander Hofmann ◽  
Martin Votsmeier ◽  
...  
Keyword(s):  
Particle Size ◽  
Cerium Oxide ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Oxygen Storage ◽  
Cerium Oxide Nanoparticles ◽  
Oxide Nanoparticles ◽  
The Impact

scholarly journals Synthesis of Ceria Zirconia Oxides using Solvothermal Treatment

2018 ◽  
Vol 156 ◽  
pp. 05014 ◽  
Author(s):  
Siti Machmudah ◽  
Widiyastuti ◽  
Sugeng Winardi ◽  
Wahyudiono ◽  
Hideki Kanda ◽  
...  
Keyword(s):  
Low Temperature ◽  
Ethylene Glycol ◽  
Solvothermal Synthesis ◽  
Storage Capacity ◽  
Oxygen Storage Capacity ◽  
Electrochemical Analysis ◽  
High Oxygen ◽  
Oxygen Storage ◽  
Solvothermal Treatment ◽  
High Oxygen Storage Capacity

Ceria oxide (CeO2) is widely used as catalyst with high oxygen storage capacity at low temperature. The addition of zirconia oxide (ZrO2) to CeO2 can enhance oxygen storage capacity as well as thermal stability. In this work, ceria zirconia oxides has been synthesized via a low temperature solvothermal treatment in order to produce ceria zirconia oxides composite with high oxygen storage capacity as electrolyte of solid oxide fuel cells (SOFC). Under solvothermal conditions, solvent may control the direction of crystal growth, morphology, particle size and size distribution, because of the controllability of thermodynamics and transport properties by pressure and temperature. Water, mixed of water and ethanol (70/30 vol/vol), and mixed of water and ethylene glycol (70/30 vol/vol) were used as solvent, while Ce(NO3)3 and ZrO(NO3)2 with 0.06 M concentration were used as precursor. The experiments were conducted at temperature of 150 °C and pressure for 2 h in a Teflon-lined autoclave of 100 mL volume. The synthesized products were dried at 60 °C for 6 and 12 h and then calcined at 900 °C for 6 h. The particle products were characterized using SEM, XRD, TG/DTA, and Potentiostat. The results showed that the morphology of particles formed were affected by the solvent. Solid plate shaped particles were produced in water, and tend to be pore with the addition of ethylene glycol. The addition of ethanol decreased the size of particles with sphere shaped. The XRD pattern indicated that ceria-zirconia oxides particles are uniformly distributed in the structure to form a homogeneous solid solution. Based on the electrochemical analysis, ceria zirconia oxides produced via solvothermal synthesis had high conductivity ion of 0.5594 S/cm, which is higher than minimum conductivity ion requirement of 0.01 S/cm for SOFC electrolyte. It indicated that ceria zirconia oxides produced via solvothermal synthesis is suitable for SOFC electrolyte.

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