Understanding on the origins of hydroxyapatite stabilized gold nanoparticles as high-efficiency catalysts for formaldehyde and benzene oxidation
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- 论文类型：期刊论文
- 发表时间：2015-01-10
- 发表刊物：CATALYSIS COMMUNICATIONS
- 收录刊物：SCIE、EI
- 卷号：59
- 页面范围：195-200
- ISSN号：1566-7367
- 关键字：Hydroxyapatite; Sintering-resistance; Supported gold catalysts; VOC
oxidation; Cerium oxide
- 摘要：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 nanopartides were investigated in the present study. Phosphate groups interacted and stabilized nano-gold at lower temperature (<= 400 degrees C), while hydroxyl group contributed to the stabilization at higher temperature (600 degrees C). Both of them contributed to the strong sintering-resistant for calcination as high as 600 degrees 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. (C) 2014 Elsevier B.V. All rights reserved.
- 发表时间：2015-01-10
