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

48 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

Funding Information:
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 ).

Publisher Copyright:
© 2014 Elsevier B.V.

Keywords

Cerium oxide
Hydroxyapatite
Sintering-resistance
Supported gold catalysts
VOC oxidation

ASJC Scopus subject areas

Catalysis
Chemistry (all)
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",

note = "Funding Information: 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 ). Publisher Copyright: {\textcopyright} 2014 Elsevier B.V.",

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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

N1 - Funding Information: 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 ). Publisher Copyright: © 2014 Elsevier B.V.

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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DO - 10.1016/j.catcom.2014.10.028

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SN - 1566-7367

VL - 59

SP - 195

EP - 200

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

Keywords

ASJC Scopus subject areas

Access to Document

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