ISSN:
1662-8985
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Ptx-Pd(1-x) nanoparticles supported on amorphous silica (SiO2) were prepared by wetnessimpregnation techniques with choroplatinic acid (H2PtCl6) and palladium chloride(PdCl4) with different concentrations of Pt and Pd at about 1% in overall metallicweight. The purpose of this study was to evaluate the physical properties asphysisorption (BET), X Ray Diffraction XRD, High Resolution Electron MicroscopyHREM, Transmission Electron Microscopy TEM couple with XEDS energy dispersiveX-ray spectrometry and chemical properties to determine the activity in cyclohexenereaction of these materials supported.Bimetallic nanoparticles are made of a single solid solution of Pt and Pd atoms, and theparticles diameter of about 3-5 nm was estimated by HREM and Bright field image, thePt-Pd nanoparticles were found mainly to have truncated cuboctahedral shape with fccpacking,. by using energy dispersive X-ray spectrometry (XEDS) and their values werefound to be close to the stochiometric relative concentrations in weight of the metals inthe precursor aqueous solution
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/01/39/transtech_doi~10.4028%252Fwww.scientific.net%252FAMR.15-17.559.pdf
Permalink