Get 20M+ Full-Text Papers For Less Than $1.50/day. Start a 14-Day Trial for You or Your Team.

Learn More →

A composite material with CeO2-ZrO2 nanocrystallines embedded in SiO2 matrices and its enhanced thermal stability and oxygen storage capacity

A composite material with CeO2-ZrO2 nanocrystallines embedded in SiO2 matrices and its enhanced... A simple hydrothermal procedure is introduced, which leads to the successful synthesis of a new composite material with fine CeO2-ZrO2 nanocrystallites embedded in amorphous and porous SiO2 matrices. The composite material possesses an extraordinary high thermal stability. After being calcined at 1000 °C, it retains CeO2-ZrO2 nanocrystallites of the size around 5 nm, a BET-specific surface area of 165 m2/g, and an oxygen storage capacity of 468 μmol/g. No phase segregation for CeO2-ZrO2 nanocrystallites is detected and the SiO2 matrices remain not crystallized. The composite material shows a great potential as a support of three-way catalyst, as evidenced in catalytic tests with supported Pt. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Journal of Nanoparticle Research Springer Journals

A composite material with CeO2-ZrO2 nanocrystallines embedded in SiO2 matrices and its enhanced thermal stability and oxygen storage capacity

Download PDF
13 pages

Loading next page...
 
/lp/springer_journal/a-composite-material-with-ceo2-zro2-nanocrystallines-embedded-in-sio2-0iCzGNfBY5
Publisher
Springer Journals
Copyright
Copyright © 2018 by Springer Science+Business Media B.V., part of Springer Nature
Subject
Materials Science; Nanotechnology; Inorganic Chemistry; Characterization and Evaluation of Materials; Physical Chemistry; Optics, Lasers, Photonics, Optical Devices
ISSN
1388-0764
eISSN
1572-896X
DOI
10.1007/s11051-018-4255-x
Publisher site
See Article on Publisher Site

Abstract

A simple hydrothermal procedure is introduced, which leads to the successful synthesis of a new composite material with fine CeO2-ZrO2 nanocrystallites embedded in amorphous and porous SiO2 matrices. The composite material possesses an extraordinary high thermal stability. After being calcined at 1000 °C, it retains CeO2-ZrO2 nanocrystallites of the size around 5 nm, a BET-specific surface area of 165 m2/g, and an oxygen storage capacity of 468 μmol/g. No phase segregation for CeO2-ZrO2 nanocrystallites is detected and the SiO2 matrices remain not crystallized. The composite material shows a great potential as a support of three-way catalyst, as evidenced in catalytic tests with supported Pt.

Journal

Journal of Nanoparticle Research – Springer Journals

Published: Jun 1, 2018

References

  • Synergistic effect between copper and cerium on the performance of Cux-Ce0.5-x-Zr0.5 (x=0.1–0.5) oxides catalysts for selective catalytic reduction of NO with ammonia
    Ali, S; Chen, L; Yuan, F; Li, R; Zhang, T; Bakhtiar, S u H; Leng, X; Niu, X; Zhu, Y
  • A rationale for the development of thermally stable nanostructured CeO2-ZrO2-containing mixed oxides
    Monte, R; Kašpar, J; Bradshaw, H; Norman, C
  • Thermal and mechanical stability of micelle-templated silica supports for catalysis
    Galarneau, A; Desplantier-Giscard, D; Renzo, F; Fajula, F
  • Effects of Nd on the properties of CeO2–ZrO2 and catalytic activities of three-way catalysts with low Pt and Rh
    Guo, J; Shi, Z; Wu, D; Yin, H; Gong, M; Chen, Y
  • Sintering of catalytic nanoparticles: particle migration or Ostwald ripening?
    Hansen, TW; DeLaRiva, AT; Challa, SR; Datye, AK
  • Use of CeO2-based oxides in the three-way catalysis
    Kašpar, J; Fornasiero, P; Graziani, M
  • Preparation of ceria–zirconia by modified coprecipitation method and its supported Pd-only three-way catalyst
    Lan, L; Chen, S; Cao, Y; Zhao, M; Gong, M; Chen, Y
  • Soot oxidation over CeO2 and Ag/CeO2: factors determining the catalyst activity and stability during reaction
    Liu, S; Wu, X; Liu, W; Chen, W; Ran, R; Li, M; Weng, D
  • The role of pore size and structure on the thermal stability of gold nanoparticles within mesoporous silica
    Bore, MT; Pham, HN; Switzer, EE; Ward, TL; Fukuoka, A; Datye, AK
  • Fundamentals and catalytic applications of CeO2-based materials
    Montini, T; Melchionna, M; Monai, M; Fornasiero, P
  • X-ray absorption fine structure analysis of local structure of CeO2–ZrO2 mixed oxides with the same composition ratio (Ce/Zr=1)
    Nagai, Y; Yamamoto, T; Tanaka, T; Yoshida, S; Nonaka, T; Okamoto, T; Suda, A; Sugiura, M
  • Microstructure and oxygen release properties of catalytic alumina-supported CeO2–ZrO2 powders
    Ozawa, M; Matuda, K; Suzuki, S
  • Core-shell type ceria zirconia support for platinum and rhodium three way catalysts
    Ozawa, M; Takahashi-Morita, M; Kobayashi, K; Haneda, M
  • Optimization of Ce0.6Zr0.4−xAl1.3xO2 solid solution based on oxygen storage capacity
    Priya, NS; Somayaji, C; Kanagaraj, S
  • Effect of hydrothermal treatment and silica on thermal stability and oxygen storage capacity of ceria–zirconia
    Raju, V; Jaenicke, S; Chuah, G-K
  • Nanosized CeO2-SiO2, CeO2-TiO2, and CeO2-ZrO2 mixed oxides: influence of supporting oxide on thermal stability and oxygen storage properties of ceria
    Reddy, BM; Khan, A
  • Dehydration of 4-methylpentan-2-ol over CexZr1−xO2/SiO2 nano-composite catalyst
    Reddy, BM; Lakshmanan, P; Bharali, P; Saikia, P
  • Influence of alumina, silica, and titania supports on the structure and CO oxidation activity of CexZr1-xO2 nanocomposite oxides
    Reddy, BM; Lakshmanan, P; Bharali, P; Saikia, P; Thrimurthulu, G; Muhler, M; Grünert, W
  • Surface stabilized nanosized CexZr1-xO2 solid solutions over SiO2: characterization by XRD, Raman, and HREM techniques
    Reddy, BM; Lakshmanan, P; Khan, A
  • Pure and Fe-doped CeO2 nanoparticles obtained by microwave assisted combustion synthesis: physico-chemical properties ruling their catalytic activity towards CO oxidation and soot combustion
    Sahoo, TR; Armandi, M; Arletti, R; Piumetti, M; Bensaid, S; Manzoli, M; Panda, SR; Bonelli, B
  • Flame-made nanocrystalline ceria/zirconia doped with alumina or silica: structural properties and enhanced oxygen exchange capacity
    Schulz, H; Stark, WJ; Maciejewski, M; Pratsinis, SE; Baiker, A
  • Effect of hollow silica support on the reduction performance of harmful gases of 3Pt-2MgO-3ZrO2-2CeO2 for DOC
    Seo, C-K; Bae, JY
  • A novel alumina catalyst support with high thermal stability derived from silica-modified alumina aerogel
    Horiuchi, T; Chen, L; Osaki, T; Sugiyama, T; Suzuki, K; Mori, T
  • Effect of preparation procedure on the formation of nanostructured ceria–zirconia mixed oxide catalysts for ethyl acetate oxidation: homogeneous precipitation with urea vs template-assisted hydrothermal synthesis
    Tsoncheva, T; Ivanova, R; Henych, J; Dimitrov, M; Kormunda, M; Kovacheva, D; Scotti, N; Santo, VD; Štengl, V
  • Structure, thermal-stability and reducibility of Si-doped Ce-Zr-O solid solution
    Wang, X; Lu, G; Guo, Y; Xue, Y; Jiang, L; Guo, Y; Zhang, Z
  • Ultrafine Ru nanoparticles embedded in SiO2 nanospheres: highly efficient catalysts for hydrolytic dehydrogenation of ammonia borane
    Yao, Q; Shi, W; Feng, G; Lu, Z-H; Zhang, X; Tao, D; Kong, D; Chen, X
  • Preparation of Ce0.67Zr0.33O2 mixed oxides as supports of improved Pd-only three-way catalysts
    Zhao, B; Li, G; Ge, C; Wang, Q; Zhou, R
  • Combined effects Na and SO2 in flue gas on Mn-Ce/TiO2 catalyst for low temperature selective catalytic reduction of NO by NH3 simulated by Na2SO4 doping
    Zhou, A; Yu, D; Yang, L; Sheng, Z
  • Thermally stable Pt/CeO2 hetero-nanocomposites with high catalytic activity
    Zhou, H-P; Wu, H-S; Shen, J; Yin, A-X; Sun, L-D; Yan, C-H