Nano-Gold Particles on Cerium Oxide for Catalytic Combustion of Formaldehyde

Yu Qin; Hua Ye; Fa Zeng Li; Xiang Zhong Kong; Jing Mei

doi:10.4028/www.scientific.net/AMM.525.150

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 525Nano-Gold Particles on Cerium Oxide for Catalytic...

Nano-Gold Particles on Cerium Oxide for Catalytic Combustion of Formaldehyde

Abstract:

Nanometer-sized gold particles supported on Cerium Oxide (CeO₂) were prepared by the method of deposition-precipitation. These catalysts exhibited good activity for the combustion of formaldehyde and the factors affected the activity of the catalyst were observed. The results showed that CeO₂ powder prepared by Ce (NO₃)₃.6H₂O and citric acid were small and gold can disperse on CeO₂ easily. 1.83wt% Au/CeO₂ exhibited the highest activity when velocity of 0.37% formaldehyde was 0.5L/min and corresponding contact time between gas and catalyst was 2h. Formaldehyde removal ratio after treating was up to 80% at 80°C and complete burn-off of formaldehyde was achieved at 120°C. The XRD and TEM results indicated that nanogold particles (≤20nm) were dispersed on cerium oxide homogeneously.

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Periodical:

Applied Mechanics and Materials (Volume 525)

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150-153

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.525.150

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Online since:

February 2014

Authors:

Yu Qin, Hua Ye, Fa Zeng Li, Xiang Zhong Kong, Jing Mei

Keywords:

Catalytic Combustion, Cerium Oxide, Formaldehyde, Gold Catalysis

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