Results 191 to 200 of about 96,778 (262)

Superior TWC activity of Rh supported on pyrochlore-phase ceria zirconia

Applied Catalysis B: Environmental, 2021
Ceria-zirconia (CZO) materials remain as a crucial component of today’s three-way catalysts (TWC). To meet increasing stringent emission standards, pyrochlore-phase CZO (pyr-CZO) was examined as a superior oxygen storage capacity (OSC) material over ...
Jason Wu, Cheng-Han Li, Joerg Jinschek
exaly   +2 more sources

Ceria–Zirconia Nanoparticles as an Enhanced Multi‐Antioxidant for Sepsis Treatment

Angewandte Chemie - International Edition, 2017
Min Soh, Dong-Wan Kang, Han-Gil Jeong
exaly   +2 more sources

Sintering aids for ceria zirconia alloys

Journal of Materials Science, 1992
Copper and manganese additives for pressureless sintering of Ce-TZP have been studied, the former because its atomic radius is close to that of Ce4+, the latter because its atomic radius is close to that of Zr4+. The temperature at which shrinkage begins did not decrease when using CuO or MnO2, but at a given temperature, the sintering rate was higher.
MASCHIO, Stefano, SBAIZERO O, MERIANI S, BISCHOFF E.   +3 more
openaire   +4 more sources

Gas phase sulfation of ceria-zirconia solid solutions for generating highly efficient and SO2 resistant NH3-SCR catalysts for NO removal.

Journal of Hazardous Materials, 2019
A series of ceria-zirconia solid solutions (CexZr1-xO2) were prepared by co-precipitation method and then sulfated with SO2 + O2 at 200 °C. Subsequent testing with the selective catalytic reduction of NO by NH3 (NH3-SCR) showed that the activity of the ...
Wei Tan, Jiaming Wang, Lulu Li, A. Liu, Ge Song, Kai Guo, Yidan Luo, Fudong Liu, F. Gao, Lin Dong   +9 more
semanticscholar   +1 more source

Hydrodeoxygenation of Guaiacol over Ceria–Zirconia Catalysts

ChemSusChem, 2015
AbstractThe hydrodeoxygenation of guaiacol is investigated over bulk ceria and ceria–zirconia catalysts with different elemental compositions. The reactions are performed in a flow reactor at 1 atm and 275–400 °C. The primary products are phenol and catechol, whereas cresol and benzene are formed as secondary products.
Sarah M, Schimming, Onaje D, LaMont, Michael, König, Allyson K, Rogers, Andrew D, D'Amico, Matthew M, Yung, Carsten, Sievers   +6 more
openaire   +2 more sources

Nanostructured ceria-zirconia catalysts for CO oxidation: Study on surface properties and reactivity

Applied Catalysis B: Environmental, 2016
Marco Piumetti, Samir Bensaid, Debora Fino   +2 more
exaly   +2 more sources

Cutting tool application of ceria-zirconia

Journal of the European Ceramic Society, 1993
Abstract Transformations between the tetragonal and monoclinic phases of stabilized zirconia, popularly known as transformation toughening, have been widely studied. The transformation response of these phases to temperature and stress are quite different and hence their transformation response to an environment such as metal cutting, where both ...
V.E. Annamalai, T. Sornakumar, C.V. Gokularathnam, R. Krishnamurthy   +3 more
openaire   +1 more source

Size, nanostructure, and composition dependence of bimetallic Au–Pd supported on ceria–zirconia mixed oxide catalysts for selective oxidation of benzyl alcohol

Journal of Catalysis, 2019
A bimetallic Au–Pd catalyst supported on ceria–zirconia with Au:Pd molar ratio 0.8 has been synthesized using a simultaneous deposition–precipitation method and oxidized at 250, 450, and 700 °C in order to modify its particle size, nanostructure, and ...
Carol M. Olmos, L. Chinchilla, A. Villa, J. Delgado, A. Hungría, G. Blanco, L. Prati, J. Calvino, Xiaowei Chen   +8 more
semanticscholar   +1 more source

Ceria−Zirconia High-Temperature Desulfurization Sorbents

Industrial & Engineering Chemistry Research, 2005
Ceria and ceria−zirconia desulfurization sorbents containing up to 20 mol % ZrO2 were prepared using a coprecipitation method. XRD analysis indicated the formation of solid solutions of ZrO2 in CeO2. ZrO2 addition produced larger specific surface area, improved sintering resistance, and increased the reducibility of the ceria.
Kwang Bok Yi, Elizabeth J. Podlaha, Douglas P. Harrison   +2 more
openaire   +1 more source

Synthesis of mesoporous ceria zirconia beads

Microporous and Mesoporous Materials, 2007
Abstract A complete range of mesoporous Ce 1− x Zr x O 2 beads ( x  = 0–1) were synthesized by the nanocasting approach using porous polymeric beads as templates and crystalline Ce 1− x Zr x O 2 nanoparticle sols as filling agent. The final beads obtained after calcination at 500 °C showed surface areas as large as 113 m 2  g −1 .
Deshpande, A., Niederberger, M.
openaire   +2 more sources