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Green-chemistry Compatible Approach to TiO-supported PdAu Bimetallic Nanoparticles for Solvent-free 1-Phenylethanol Oxidation under Mild Conditions.
- Source :
-
Nano-Micro Letters . Jul2015, Vol. 7 Issue 3, p307-315. 9p. 2 Color Photographs, 5 Graphs. - Publication Year :
- 2015
-
Abstract
- TiO-supported PdAu bimetallic nanoparticles (NPs) with small size and good dispersity were prepared by the room-temperature ionic liquid-assisted bimetal sputtering, which is simple, environmentally friendly, and free of additives and byproducts. Pd/Au atomic ratio can be tuned by controlling the sputtering conditions simply. High catalytic activity was found in PdAu-NPs-TiO hybrids for solvent-free selective oxidation of 1-phenylethanol using O as the oxidant at the low temperature of 50 °C and low pressure of 1 atm. It was found that Pd/Au ratio strongly affected the catalytical activity, and the highest conversion of about 35 % and turnover frequency of about 421 h were achieved at 1:1 of Pd/Au atomic ratio. The synergistic effect in PdAu NPs was also discussed based on the comprehensive characterization results. The present approach may offer an alternative platform for future development of green-chemistry compatible bimetallic nanocatalysts. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 23116706
- Volume :
- 7
- Issue :
- 3
- Database :
- Academic Search Index
- Journal :
- Nano-Micro Letters
- Publication Type :
- Academic Journal
- Accession number :
- 103415923
- Full Text :
- https://doi.org/10.1007/s40820-015-0044-6