Results 11 to 20 of about 71,135 (220)

Synthesis of Ceria Zirconia Oxides using Solvothermal Treatment

MATEC Web of Conferences, 2018
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.
Machmudah Siti, Widiyastuti, Winardi Sugeng, Wahyudiono, Kanda Hideki, Goto Motonobu   +5 more
doaj   +4 more sources

Phase separation and surface segregation in ceria–zirconia solid solutions [PDF]

Proceedings of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2011
Using a combination of density functional theory calculations and statistical mechanics, we show that a wide range of intermediate compositions of ceria–zirconia solid solutions are thermodynamically metastable with respect to phase separation into Ce-rich and Zr-rich oxides.
Grau-Crespo, Ricardo, de Leeuw, Nora H., Hamad, Said, Waghmare, Umesh V.   +3 more
openaire   +4 more sources

Revealing the Giant Electromechanical Effects in Yttria-Stabilized Zirconia Single Crystal. [PDF]

Adv Sci (Weinh)
Giant electromechanical responses are uncovered in yttria‐stabilized zirconia single crystal (SC‐YSZ), exhibiting pronounced orientation dependence. The giant electrostriction and piezoelectricity are directly correlated with the long‐range transport kinetics of oxygen vacancies.
Yi Z, Pan K, Hu C, Liao L, He Z, Guo Z, Wu Y, Zhao C, Xie S.   +8 more
europepmc   +2 more sources

Inhibition of Metal-Support Interactions by Rare-Earth Doping in Palladium/Ceria Zirconia Three-Way Catalysts. [PDF]

Chem Mater
The impact of rare-earth (RE) doping in ceria-zirconia─critical for enhancing thermal stability and optimizing redox properties─on surface palladium (Pd) behavior has been investigated. RE doping was found to weaken metal–support interactions, leading to
Costley-Wood L, Flores-González NA, Wilson C, Thompson P, Day S, Celorrio V, Decarolis D, Morris R, Schuster ME, Marchbank H, Hyde TI, Kolpin A, Thompsett D, Gibson EK.   +13 more
europepmc   +2 more sources

Iron-Based Catalysts on Tailored Alumina Supports for CO_x-Free Methane Decomposition to H₂ and Carbon. [PDF]

ChemistryOpen
Fe‐10ZrAl catalyst enables catalytic methane decomposition into COx‐free H2 and solid carbon. ZrO2‐modified alumina improves Fe particle stabilization, reducibility, and carbon growth behavior, giving the best performance among the tested catalysts with 76.5% CH4 conversion and 74.1% H2 yield at 800 °C.
Alturki HS, Alterary SS, Abahussain AAM, Osman AI, Bayazed MO, Ibrahim AA, Alarifi N, Almubaddel FS, Saeed AMM, Kumar R, Al-Fatesh AS.   +10 more
europepmc   +2 more sources

Elastic deformation in ceria nanorods via a fluorite-to-rutile phase transition [PDF]

, 2010
Atomistic simulations reveal that ceria nanorods, under uniaxial tension, can accommodate over 6% elastic deformation. Moreover, a reversible fluorite-to- rutile phase change occurs above 6% strain for a ceria nanorod that extends along [110]. We also
Sayle, Thi X. T., Sayle, T.X.T., Sayle, D.C., Sayle, Dean C., Dean C. Sayle, Thi X. T. Sayle   +5 more
core   +1 more source

Mechanical properties of ceria nanorods and nanochains; The effect of dislocations, grain-boundaries and oriented attachment [PDF]

, 2011
We predict that the presence of extended defects can reduce the mechanical strength of a ceria nanorod by 70%. Conversely, the pristine material can deform near its theoretical strength limit.
Amit Kumar, Sudipta Seal, Sayle, T.X.T., Günter Möbus, Parker, S.C., Beverley J. Inkson, Karakoti, A., Kumar, A., Stephen C. Parker, Seal, S., Dean C. Sayle, Inkson, B.J., Sayle, D.C., Ajay Karakoti, Molinari, M., Thi X. T. Sayle, Möbus, G., Marco Molinari, Sayle, Thi X.T., Inkson, Beverley J., Kumar, Amit, Karakoti, Ajay, Molinari, Marco   +22 more
core   +1 more source

Catalytic performance of CuO/Ce0.8Zr0.2O2 loaded onto SiC-DPF in NOx-assisted combustion of diesel soot [PDF]

RSC Advances, 2015
This work presents a comparative study between the catalytic performance of the 2% CuO/ceria-zirconia powder catalyst and the same catalyst supported on silicon carbide DPF (Diesel Particulate Filter) towards NO oxidation reaction and soot combustion ...
Susana Quiles-Díaz, Javier Giménez-Mañogil, Avelina García-García   +2 more
doaj   +1 more source

Potential of Ceria-Based Catalysts for the Oxidation of Landfill Leachate by Heterogeneous Fenton Process

International Journal of Photoenergy, 2012
In this study, ceria and ceria-zirconia solid solutions were tested as catalyst for the treatment of landfill leachate with a Fenton-like process. The catalysts considered in this work were pure ceria and ceria-zirconia solid solutions as well as iron ...
E. Aneggi, V. Cabbai, A. Trovarelli, D. Goi   +3 more
doaj   +1 more source

Hydrothermal and Solvothermal Synthesis of Cerium-Zirconium Oxides for Catalyst Applications

International Journal of Technology, 2019
Cerium oxide (CeO2) is a rare earth metal oxide that has high oxygen storage capacity at low temperature. In order to enhance this capacity, as well as its thermal stability, it is necessary to combine CeO2 with zirconium oxide (ZrO2).
Siti Machmudah, Muhamad Risky Ceaser, Muhammad Fareid Alwajdy, Widiyastuti, Sugeng Winardi, Wahyudiono, Hideki Kanda, Motonobu Goto   +7 more
doaj   +1 more source