FeOx-supported gold catalysts for catalytic removal of formaldehyde at room temperature

Bing bing Chen; Xiao bing Zhu; Mark Crocker; Yu Wang; Chuan Shi

doi:10.1016/j.apcatb.2014.02.009

FeO_x-supported gold catalysts for catalytic removal of formaldehyde at room temperature

Bing bing Chen, Xiao bing Zhu, Mark Crocker, Yu Wang, Chuan Shi

Chemistry

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

139 Scopus citations

Abstract

FeO_x-supported Au catalysts prepared by co-precipitation (CP) were investigated for catalytic HCHO oxidation. The applied calcination temperature was found to greatly influence both the chemical properties and microstructure of the catalysts. Characterization using XRD, H₂-TPR and XPS suggested that lower calcination temperature improves the reducibility of the catalysts, and favors the presence of surface hydroxyl groups. Consequently, an Au/FeO_x catalyst calcined at 200°C afforded 100% conversion of HCHO into CO₂ and H₂O at room temperature and under humid air. In situ DRIFTs studies suggested that the moisture was essential for deep oxidation of the formate intermediates into CO₂ and H₂O, this being the rate limiting step for catalytic HCHO oxidation.

Original language	English
Pages (from-to)	73-81
Number of pages	9
Journal	Applied Catalysis B: Environmental
Volume	154-155
DOIs	https://doi.org/10.1016/j.apcatb.2014.02.009
State	Published - Jul 2014

Bibliographical note

Funding Information:
The work was supported by the National Natural Foundation of China (Nos. 21073024 and 21373037), Natural Science Foundation of Liaoning Province (No. 201102034) and by the Program for New Century Excellent Talents in University (NCET-07-0136), as well as by the Fundamental Research Funds for the Central Universities (No. DUT12LK23).

Keywords

Catalytic oxidation
Formaldehyde
Gold
Iron oxide
Room temperature

ASJC Scopus subject areas

Catalysis
Environmental Science (all)
Process Chemistry and Technology

Access to Document

10.1016/j.apcatb.2014.02.009

Cite this

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title = "FeOx-supported gold catalysts for catalytic removal of formaldehyde at room temperature",

abstract = "FeOx-supported Au catalysts prepared by co-precipitation (CP) were investigated for catalytic HCHO oxidation. The applied calcination temperature was found to greatly influence both the chemical properties and microstructure of the catalysts. Characterization using XRD, H2-TPR and XPS suggested that lower calcination temperature improves the reducibility of the catalysts, and favors the presence of surface hydroxyl groups. Consequently, an Au/FeOx catalyst calcined at 200°C afforded 100% conversion of HCHO into CO2 and H2O at room temperature and under humid air. In situ DRIFTs studies suggested that the moisture was essential for deep oxidation of the formate intermediates into CO2 and H2O, this being the rate limiting step for catalytic HCHO oxidation.",

keywords = "Catalytic oxidation, Formaldehyde, Gold, Iron oxide, Room temperature",

author = "Chen, {Bing bing} and Zhu, {Xiao bing} and Mark Crocker and Yu Wang and Chuan Shi",

note = "Funding Information: The work was supported by the National Natural Foundation of China (Nos. 21073024 and 21373037), Natural Science Foundation of Liaoning Province (No. 201102034) and by the Program for New Century Excellent Talents in University (NCET-07-0136), as well as by the Fundamental Research Funds for the Central Universities (No. DUT12LK23). ",

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doi = "10.1016/j.apcatb.2014.02.009",

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T1 - FeOx-supported gold catalysts for catalytic removal of formaldehyde at room temperature

AU - Chen, Bing bing

AU - Zhu, Xiao bing

AU - Crocker, Mark

AU - Wang, Yu

AU - Shi, Chuan

N1 - Funding Information: The work was supported by the National Natural Foundation of China (Nos. 21073024 and 21373037), Natural Science Foundation of Liaoning Province (No. 201102034) and by the Program for New Century Excellent Talents in University (NCET-07-0136), as well as by the Fundamental Research Funds for the Central Universities (No. DUT12LK23).

PY - 2014/7

Y1 - 2014/7

N2 - FeOx-supported Au catalysts prepared by co-precipitation (CP) were investigated for catalytic HCHO oxidation. The applied calcination temperature was found to greatly influence both the chemical properties and microstructure of the catalysts. Characterization using XRD, H2-TPR and XPS suggested that lower calcination temperature improves the reducibility of the catalysts, and favors the presence of surface hydroxyl groups. Consequently, an Au/FeOx catalyst calcined at 200°C afforded 100% conversion of HCHO into CO2 and H2O at room temperature and under humid air. In situ DRIFTs studies suggested that the moisture was essential for deep oxidation of the formate intermediates into CO2 and H2O, this being the rate limiting step for catalytic HCHO oxidation.

AB - FeOx-supported Au catalysts prepared by co-precipitation (CP) were investigated for catalytic HCHO oxidation. The applied calcination temperature was found to greatly influence both the chemical properties and microstructure of the catalysts. Characterization using XRD, H2-TPR and XPS suggested that lower calcination temperature improves the reducibility of the catalysts, and favors the presence of surface hydroxyl groups. Consequently, an Au/FeOx catalyst calcined at 200°C afforded 100% conversion of HCHO into CO2 and H2O at room temperature and under humid air. In situ DRIFTs studies suggested that the moisture was essential for deep oxidation of the formate intermediates into CO2 and H2O, this being the rate limiting step for catalytic HCHO oxidation.

KW - Catalytic oxidation

KW - Formaldehyde

KW - Gold

KW - Iron oxide

KW - Room temperature

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