Hydrothermal synthesis of tin doped ceria-zirconia solid solutions with enhanced thermal stability and oxygen storage capacity

Qiang Dong; Shu Yin; Chongshen Guo; Takeshi Kimura; Tsugio Sato

doi:10.1039/c2ra21766j

Hydrothermal synthesis of tin doped ceria-zirconia solid solutions with enhanced thermal stability and oxygen storage capacity

Qiang Dong, Shu Yin, Chongshen Guo, Takeshi Kimura, Tsugio Sato

IMRAM - Division of Inorganic Material Research

Tohoku University

Research output: Contribution to journal › Article › peer-review

15 Citations (Scopus)

Abstract

A facile hydrothermal synthesis of tin doped ceria-zirconia (Ce _0.5Zr_0.43Sn_0.07O₂) solid solutions was carried out using Ce(NH₄)₂(NO₃) ₆, Zr(NO₃)₃·2H₂O and SnCl₄·5H₂O as the starting materials. The synthesized Ce_0.5Zr_0.43Sn_0.07O₂ particles were characterized for their oxygen storage capacity (OSC) for automotive catalysis applications. For the characterization, X-ray diffraction, transmission electron microscopy and the Brunauer-Emmet-Teller (BET) technique were employed. The OSC values of all samples were measured using thermogravimetric-differential thermal analysis. Ce_0.5Zr _0.43Sn_0.07O₂ solid solutions with a BET surface area of 246 m² g^-1 exhibited a considerably high OSC of 1425 μmol-O g^-1. The incorporation of tin ions in the lattice of the ceria based catalyst greatly enhanced the thermal stability and OSC. The influence of cation radius on the thermal stability and OSC was also discussed.

Original language	English
Pages (from-to)	12770-12774
Number of pages	5
Journal	RSC Advances
Volume	2
Issue number	33
DOIs	https://doi.org/10.1039/c2ra21766j
Publication status	Published - 2012 Dec 21

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title = "Hydrothermal synthesis of tin doped ceria-zirconia solid solutions with enhanced thermal stability and oxygen storage capacity",

abstract = "A facile hydrothermal synthesis of tin doped ceria-zirconia (Ce 0.5Zr0.43Sn0.07O2) solid solutions was carried out using Ce(NH4)2(NO3) 6, Zr(NO3)3·2H2O and SnCl4·5H2O as the starting materials. The synthesized Ce0.5Zr0.43Sn0.07O2 particles were characterized for their oxygen storage capacity (OSC) for automotive catalysis applications. For the characterization, X-ray diffraction, transmission electron microscopy and the Brunauer-Emmet-Teller (BET) technique were employed. The OSC values of all samples were measured using thermogravimetric-differential thermal analysis. Ce0.5Zr 0.43Sn0.07O2 solid solutions with a BET surface area of 246 m2 g-1 exhibited a considerably high OSC of 1425 μmol-O g-1. The incorporation of tin ions in the lattice of the ceria based catalyst greatly enhanced the thermal stability and OSC. The influence of cation radius on the thermal stability and OSC was also discussed.",

author = "Qiang Dong and Shu Yin and Chongshen Guo and Takeshi Kimura and Tsugio Sato",

year = "2012",

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doi = "10.1039/c2ra21766j",

language = "English",

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T1 - Hydrothermal synthesis of tin doped ceria-zirconia solid solutions with enhanced thermal stability and oxygen storage capacity

AU - Dong, Qiang

AU - Yin, Shu

AU - Guo, Chongshen

AU - Kimura, Takeshi

AU - Sato, Tsugio

PY - 2012/12/21

Y1 - 2012/12/21

N2 - A facile hydrothermal synthesis of tin doped ceria-zirconia (Ce 0.5Zr0.43Sn0.07O2) solid solutions was carried out using Ce(NH4)2(NO3) 6, Zr(NO3)3·2H2O and SnCl4·5H2O as the starting materials. The synthesized Ce0.5Zr0.43Sn0.07O2 particles were characterized for their oxygen storage capacity (OSC) for automotive catalysis applications. For the characterization, X-ray diffraction, transmission electron microscopy and the Brunauer-Emmet-Teller (BET) technique were employed. The OSC values of all samples were measured using thermogravimetric-differential thermal analysis. Ce0.5Zr 0.43Sn0.07O2 solid solutions with a BET surface area of 246 m2 g-1 exhibited a considerably high OSC of 1425 μmol-O g-1. The incorporation of tin ions in the lattice of the ceria based catalyst greatly enhanced the thermal stability and OSC. The influence of cation radius on the thermal stability and OSC was also discussed.

AB - A facile hydrothermal synthesis of tin doped ceria-zirconia (Ce 0.5Zr0.43Sn0.07O2) solid solutions was carried out using Ce(NH4)2(NO3) 6, Zr(NO3)3·2H2O and SnCl4·5H2O as the starting materials. The synthesized Ce0.5Zr0.43Sn0.07O2 particles were characterized for their oxygen storage capacity (OSC) for automotive catalysis applications. For the characterization, X-ray diffraction, transmission electron microscopy and the Brunauer-Emmet-Teller (BET) technique were employed. The OSC values of all samples were measured using thermogravimetric-differential thermal analysis. Ce0.5Zr 0.43Sn0.07O2 solid solutions with a BET surface area of 246 m2 g-1 exhibited a considerably high OSC of 1425 μmol-O g-1. The incorporation of tin ions in the lattice of the ceria based catalyst greatly enhanced the thermal stability and OSC. The influence of cation radius on the thermal stability and OSC was also discussed.

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Hydrothermal synthesis of tin doped ceria-zirconia solid solutions with enhanced thermal stability and oxygen storage capacity

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