Understanding on the origins of hydroxyapatite stabilized gold nanoparticles as high-efficiency catalysts for formaldehyde and benzene oxidation

Yu Wang; Bing Bing Chen; Mark Crocker; Yu Jing Zhang; Xiao Bing Zhu; Chuan Shi

doi:10.1016/j.catcom.2014.10.028

Understanding on the origins of hydroxyapatite stabilized gold nanoparticles as high-efficiency catalysts for formaldehyde and benzene oxidation

Yu Wang, Bing Bing Chen, Mark Crocker, Yu Jing Zhang, Xiao Bing Zhu, Chuan Shi

Chemistry

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

61 Scopus citations

Abstract

Hydroxyapatite as a green and abundant material was found to enhance the stabilization of gold nanoparticles against sintering. The origins of such stabilization of HAP on supported gold nanoparticles were investigated in the present study. Phosphate groups interacted and stabilized nano-gold at lower temperature (≤400 °C), while hydroxyl group contributed to the stabilization at higher temperature (≤ 600 °C). Both of them contributed to the strong sintering-resistant for calcination as high as 600°C. For the first time we found that Au/HAP and Au/CeO₂/HAP catalysts are highly active and stable for formaldehyde and benzene oxidation.

Original language	English
Pages (from-to)	195-200
Number of pages	6
Journal	Catalysis Communications
Volume	59
DOIs	https://doi.org/10.1016/j.catcom.2014.10.028
State	Published - Jan 10 2015

Bibliographical note

Publisher Copyright:
© 2014 Elsevier B.V.

Funding

The work was supported by the National Natural Science Foundation of China (Nos. 21073024 and 21373037 ) and by the Fundamental Research Funds for the Central Universities (No. DUT14RC(3)073 ).

Funders	Funder number
National Natural Science Foundation of China (NSFC)	21073024, 21373037
National Natural Science Foundation of China (NSFC)
Fundamental Research Funds for the Central Universities	DUT14RC(3)073
Fundamental Research Funds for the Central Universities

Keywords

Cerium oxide
Hydroxyapatite
Sintering-resistance
Supported gold catalysts
VOC oxidation

ASJC Scopus subject areas

Catalysis
General Chemistry
Process Chemistry and Technology

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10.1016/j.catcom.2014.10.028

Cite this

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title = "Understanding on the origins of hydroxyapatite stabilized gold nanoparticles as high-efficiency catalysts for formaldehyde and benzene oxidation",

abstract = "Hydroxyapatite as a green and abundant material was found to enhance the stabilization of gold nanoparticles against sintering. The origins of such stabilization of HAP on supported gold nanoparticles were investigated in the present study. Phosphate groups interacted and stabilized nano-gold at lower temperature (≤400 °C), while hydroxyl group contributed to the stabilization at higher temperature (≤ 600 °C). Both of them contributed to the strong sintering-resistant for calcination as high as 600°C. For the first time we found that Au/HAP and Au/CeO2/HAP catalysts are highly active and stable for formaldehyde and benzene oxidation.",

keywords = "Cerium oxide, Hydroxyapatite, Sintering-resistance, Supported gold catalysts, VOC oxidation",

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

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doi = "10.1016/j.catcom.2014.10.028",

language = "English",

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AU - Wang, Yu

AU - Chen, Bing Bing

AU - Crocker, Mark

AU - Zhang, Yu Jing

AU - Zhu, Xiao Bing

AU - Shi, Chuan

PY - 2015/1/10

Y1 - 2015/1/10

N2 - Hydroxyapatite as a green and abundant material was found to enhance the stabilization of gold nanoparticles against sintering. The origins of such stabilization of HAP on supported gold nanoparticles were investigated in the present study. Phosphate groups interacted and stabilized nano-gold at lower temperature (≤400 °C), while hydroxyl group contributed to the stabilization at higher temperature (≤ 600 °C). Both of them contributed to the strong sintering-resistant for calcination as high as 600°C. For the first time we found that Au/HAP and Au/CeO2/HAP catalysts are highly active and stable for formaldehyde and benzene oxidation.

AB - Hydroxyapatite as a green and abundant material was found to enhance the stabilization of gold nanoparticles against sintering. The origins of such stabilization of HAP on supported gold nanoparticles were investigated in the present study. Phosphate groups interacted and stabilized nano-gold at lower temperature (≤400 °C), while hydroxyl group contributed to the stabilization at higher temperature (≤ 600 °C). Both of them contributed to the strong sintering-resistant for calcination as high as 600°C. For the first time we found that Au/HAP and Au/CeO2/HAP catalysts are highly active and stable for formaldehyde and benzene oxidation.

KW - Cerium oxide

KW - Hydroxyapatite

KW - Sintering-resistance

KW - Supported gold catalysts

KW - VOC oxidation

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JO - Catalysis Communications

JF - Catalysis Communications

ER -

Understanding on the origins of hydroxyapatite stabilized gold nanoparticles as high-efficiency catalysts for formaldehyde and benzene oxidation

Abstract

Bibliographical note

Funding

Keywords

ASJC Scopus subject areas

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