期刊
APPLIED CATALYSIS A-GENERAL
卷 475, 期 -, 页码 477-486出版社
ELSEVIER
DOI: 10.1016/j.apcata.2014.02.002
关键词
Heterogeneous Catalysis; Mizoroki-Heck Reaction nanoparticles; Pd/ZnO; Sonogashira reaction
资金
- Shiraz University
- Iran National Science Foundation [90003779]
In this paper, a novel Palladium (Pd) supported on ZnO nanoparticles was readily synthesized and characterized by using X-ray diffraction (XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), and BET specific surface area measurement. The total amount of palladium particles on ZnO was determined by induced coupled plasma (ICP) analysis and atomic absorption spectroscopy (MS) which is 9.8 wt%. Percentage of accessible Pd as active catalyst is also estimated to 2.72% based on the thermogravimetric (TG) analysis. Nano Pd/ZnO was found as a new, novel, and excellent heterogeneous catalyst for ligand-free C-C bond formation through the Mizoroki-Heck and Sonogashira reactions under air atmosphere without the use of any Ar or N-2 flow. The catalyst can be recovered and recycled several times without marked loss of activity. (C) 2014 Elsevier B.V. All rights reserved.
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