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.
|Number of pages||6|
|State||Published - Jan 10 2015|
Bibliographical noteFunding 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 ).
© 2014 Elsevier B.V.
- Cerium oxide
- Supported gold catalysts
- VOC oxidation
ASJC Scopus subject areas
- Chemistry (all)
- Process Chemistry and Technology