Ce 0.5Zr 0.4Sn 0.1O 2/Al 2O 3 catalysts with enhanced oxygen storage capacity and high CO oxidation activity

Qiang Dong; Shu Yin; Chongshen Guo; Tsugio Sato

doi:10.1039/c2cy20425h

Ce _0.5Zr _0.4Sn _0.1O ₂/Al ₂O ₃ catalysts with enhanced oxygen storage capacity and high CO oxidation activity

Qiang Dong, Shu Yin, Chongshen Guo, Tsugio Sato

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

30 Citations (Scopus)

Abstract

Ce _0.5Zr _0.4Sn _0.1O ₂/Al ₂O ₃ catalysts were prepared by a coprecipitation route using Ce(NH ₄) ₂(NO ₃) ₆, Zr(NO ₃) ₃·2H ₂O, SnCl ₄· 5H ₂O and Al ₂O ₃ as the starting materials, and were evaluated as a promoter in automotive catalysis by X-ray diffraction, transmission electron microscopy and the Brunauer-Emmet-Teller (BET) technique. The oxygen storage capacity (OSC) values of the samples were measured using thermogravimetric-differential thermal analysis at 600°C with a continuous flow of CO-N ₂ gas and air alternately. The CO oxidation activity of the synthesized sample was evaluated via a gas FTIR spectrometer for analysis of gas compositions. The Ce _0.5Zr _0.4Sn _0.1O ₂/γ-Al ₂O ₃ composite possessed excellent thermal stability, enhanced OSC values, and high CO oxidation activity at the low temperatures even after calcination at 1000°C for 20 h.

Original language	English
Pages (from-to)	2521-2524
Number of pages	4
Journal	Catalysis Science and Technology
Volume	2
Issue number	12
DOIs	https://doi.org/10.1039/c2cy20425h
Publication status	Published - 2012 Dec

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Catalysis

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title = "Ce 0.5Zr 0.4Sn 0.1O 2/Al 2O 3 catalysts with enhanced oxygen storage capacity and high CO oxidation activity",

abstract = "Ce 0.5Zr 0.4Sn 0.1O 2/Al 2O 3 catalysts were prepared by a coprecipitation route using Ce(NH 4) 2(NO 3) 6, Zr(NO 3) 3·2H 2O, SnCl 4· 5H 2O and Al 2O 3 as the starting materials, and were evaluated as a promoter in automotive catalysis by X-ray diffraction, transmission electron microscopy and the Brunauer-Emmet-Teller (BET) technique. The oxygen storage capacity (OSC) values of the samples were measured using thermogravimetric-differential thermal analysis at 600°C with a continuous flow of CO-N 2 gas and air alternately. The CO oxidation activity of the synthesized sample was evaluated via a gas FTIR spectrometer for analysis of gas compositions. The Ce 0.5Zr 0.4Sn 0.1O 2/γ-Al 2O 3 composite possessed excellent thermal stability, enhanced OSC values, and high CO oxidation activity at the low temperatures even after calcination at 1000°C for 20 h.",

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

year = "2012",

month = dec,

doi = "10.1039/c2cy20425h",

language = "English",

volume = "2",

pages = "2521--2524",

journal = "Catalysis Science and Technology",

issn = "2044-4753",

publisher = "Royal Society of Chemistry",

number = "12",

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TY - JOUR

T1 - Ce 0.5Zr 0.4Sn 0.1O 2/Al 2O 3 catalysts with enhanced oxygen storage capacity and high CO oxidation activity

AU - Dong, Qiang

AU - Yin, Shu

AU - Guo, Chongshen

AU - Sato, Tsugio

PY - 2012/12

Y1 - 2012/12

N2 - Ce 0.5Zr 0.4Sn 0.1O 2/Al 2O 3 catalysts were prepared by a coprecipitation route using Ce(NH 4) 2(NO 3) 6, Zr(NO 3) 3·2H 2O, SnCl 4· 5H 2O and Al 2O 3 as the starting materials, and were evaluated as a promoter in automotive catalysis by X-ray diffraction, transmission electron microscopy and the Brunauer-Emmet-Teller (BET) technique. The oxygen storage capacity (OSC) values of the samples were measured using thermogravimetric-differential thermal analysis at 600°C with a continuous flow of CO-N 2 gas and air alternately. The CO oxidation activity of the synthesized sample was evaluated via a gas FTIR spectrometer for analysis of gas compositions. The Ce 0.5Zr 0.4Sn 0.1O 2/γ-Al 2O 3 composite possessed excellent thermal stability, enhanced OSC values, and high CO oxidation activity at the low temperatures even after calcination at 1000°C for 20 h.

AB - Ce 0.5Zr 0.4Sn 0.1O 2/Al 2O 3 catalysts were prepared by a coprecipitation route using Ce(NH 4) 2(NO 3) 6, Zr(NO 3) 3·2H 2O, SnCl 4· 5H 2O and Al 2O 3 as the starting materials, and were evaluated as a promoter in automotive catalysis by X-ray diffraction, transmission electron microscopy and the Brunauer-Emmet-Teller (BET) technique. The oxygen storage capacity (OSC) values of the samples were measured using thermogravimetric-differential thermal analysis at 600°C with a continuous flow of CO-N 2 gas and air alternately. The CO oxidation activity of the synthesized sample was evaluated via a gas FTIR spectrometer for analysis of gas compositions. The Ce 0.5Zr 0.4Sn 0.1O 2/γ-Al 2O 3 composite possessed excellent thermal stability, enhanced OSC values, and high CO oxidation activity at the low temperatures even after calcination at 1000°C for 20 h.

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U2 - 10.1039/c2cy20425h

DO - 10.1039/c2cy20425h

M3 - Article

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SN - 2044-4753

VL - 2

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EP - 2524

JO - Catalysis Science and Technology

JF - Catalysis Science and Technology

IS - 12

ER -

Ce _0.5Zr _0.4Sn _0.1O ₂/Al ₂O ₃ catalysts with enhanced oxygen storage capacity and high CO oxidation activity

Abstract

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