Preparation, characterization and catalytic behavior of SnO2 supported Au catalysts for low-temperature CO oxidation

Wang, Shurong; Huang, Jing; Zhao, Yang; Wang, Shuping; Wang, Xiaoying; Zhang, Tong-Ying; Wu, Shaohua; Zhang, Shoumin; Huang, Wei‐Ping

doi:10.1016/j.molcata.2006.06.021

Cited by 62 publications

(10 citation statements)

References 26 publications

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“…Amongst others, SnO 2 was also applied as support material but no high temperature reduction was done to examine the effect of the reducibility of tin oxide on the catalytic activity [43]. Others examined the effect of the temperature of calcination and gold loading on the activity of Au/SnO 2 catalysts, but unfortunately no attention was paid for the investigation of the effect of reductive pretreatment [44].…”

Section: Discussionmentioning

confidence: 99%

Promoting effect of tin oxides on alumina-supported gold catalysts used in CO oxidation

Somodi

Borbáth

Hegedűs

et al. 2009

Applied Surface Science

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Section: Discussionmentioning

confidence: 99%

Promoting effect of tin oxides on alumina-supported gold catalysts used in CO oxidation

Somodi

Borbáth

Hegedűs

et al. 2009

Applied Surface Science

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“…In principle, this outcome is not surprising because the gold reduction to metal during thermal treatment is a typical process for all systems containing gold deposited using wet chemical methods. Typically, full gold reduction occurs at temperatures above 300°C [44,45]. In the present experiments, the samples were annealed at T an = 450°C, and other chemical states of gold were therefore not expected.…”

Section: *** Near Herementioning

confidence: 98%

The influence of gold nanoparticles on the conductivity response of SnO2-based thin film gas sensors

Korotcenkov

Brînzari

Gulina

et al. 2015

Applied Surface Science

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“…In order to control the toxic emission, catalytic oxidation of CO is an efficient way. Recently, lots of catalysts have been investigated, in which precious metal catalysts such as Pd/SnO 2 , Au/MnO x , Au/α-Fe 2 O 3 , Pt/SnO 2 and Au/SnO 2 have been demonstrated to be very effective [1][2][3]. However, their extensive adoption is discouraged by their high cost and limited availability.…”

Section: Introductionmentioning

confidence: 99%

Impregnation method prepared Cu-Co-Ce-O catalysts and their activities for low-temperature carbon monoxide oxidation

Wang¹,

Kong²,

Yan³

et al. 2012

Proceedings of the 2nd International Conference on Electronic and Mechanical Engineering and Information Technology (2012)

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Abstract. The support CeO 2 was prepared by thermal decomposition method, and the Cu-Co-Ce-O catalysts were synthesized via impregnation method. The prepared catalysts were characterized by X-ray diffraction (XRD) and Fourier transform infrared spectroscopy (FT-IR) techniques, and their catalytic properties for low-temperature CO oxidation were evaluated by using a microreactor-GC system. The results showed that the Co/Ce atomic ratio has great effect on the activities of catalysts, and the catalyst with Co/Ce = 1 has the highest catalytic activity for CO total oxidation at 90 o C. IntroductionCarbon monoxide, which is emitted from many industrial and transportation activities, is one of the major air pollutants that are harmful to human health and the environment. In order to control the toxic emission, catalytic oxidation of CO is an efficient way. Recently, lots of catalysts have been investigated, in which precious metal catalysts such as Pd/SnO 2 , Au/MnO x , Au/α-Fe 2 O 3 , Pt/SnO 2 and Au/SnO 2 have been demonstrated to be very effective [1][2][3]. However, their extensive adoption is discouraged by their high cost and limited availability. Much attention has thus recently been paid to base metal as catalysts, for both their excellent performances in CO oxidation and low cost.Cerium dioxide is of interest for its applications such as three-way catalysts for automotive exhaust gas treatment. CeO 2 supported precious metal and CuO catalysts have been used for carbon monoxide oxidation [4][5][6]. Recently, Ce-containing mixed oxides, such as CeO 2 -ZrO 2 , CeO 2 -CoO, and CeO 2 -TiO 2 have been proposed as oxidation catalysts [7][8][9][10]. However, the doping of ceria with other elements did not always enhance the activity of CuO/CeO 2 catalysts in catalytic oxidation. Wu et al. [10] prepared CuO/Ce 1-x Ti x O 2 by a sol-gel impregnation method and studied its catalytic activity for the preferential oxidation of CO in H 2 -rich streams. The catalyst with a composition of CuO/Ce 0.8 Ti 0.2 O 2 exhibited the highest activity. Our previous studies [7] found that incorporating zirconium into CeO 2 could improve the oxygen storage capacity, redox properties and thermal resistance of the resulting mixed oxides. The mesoporous CuO/Ce 0.8 Zr 0.2 O 2 nanocatalysts exhibited the highest catalytic activity for low temperature CO oxidation (total oxidation of CO at 90

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Preparation, characterization and catalytic behavior of SnO2 supported Au catalysts for low-temperature CO oxidation

Cited by 62 publications

References 26 publications

Promoting effect of tin oxides on alumina-supported gold catalysts used in CO oxidation

Promoting effect of tin oxides on alumina-supported gold catalysts used in CO oxidation

The influence of gold nanoparticles on the conductivity response of SnO2-based thin film gas sensors

Impregnation method prepared Cu-Co-Ce-O catalysts and their activities for low-temperature carbon monoxide oxidation

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