Next Article in Journal
Finite Element Analysis of Surface Integrity in Deep Ball-Burnishing of a Biodegradable AZ31B Mg Alloy
Previous Article in Journal
Comparative Effect of Mo and Cr on Microstructure and Mechanical Properties in NbV-Microalloyed Bainitic Steels
Article Menu
Issue 2 (February) cover image

Export Article

Open AccessFeature PaperArticle
Metals 2018, 8(2), 135;

Chemical Synthesis and Characterization of Pd/SiO2: The Effect of Chemical Reagent

The Smart Materials Research Center, Southern Federal University, 178/24 Sladkova, Rostov-on-Don 344090, Russia
Authors to whom correspondence should be addressed.
Received: 28 December 2017 / Revised: 7 February 2018 / Accepted: 12 February 2018 / Published: 16 February 2018
Full-Text   |   PDF [1865 KB, uploaded 22 February 2018]   |  


The size and shape distribution of metal nanoparticles (NPs) are important parameters that need to be tuned in order to achieve desired properties of materials for practical applications. In the current work, we present the synthesis of palladium NPs supported on silica by three different methods, applying reduction by sodium borohydride, hydrazine vapors, and polyethylene glycol (PEG). The synthesized materials were characterized by X-ray diffraction, X-ray fluorescence, transmission electron microscopy, surface area and porosity measurements, and thermogravimetric analysis. Similar nanoparticle sizes with narrow size distribution centered at 8 nm were obtained after reduction by sodium borohydride and hydrazine vapors, whereas the smallest particle size of about 4.8 nm was obtained after reduction by PEG. The effect of modification of the initial palladium chloride compound by ammonium hydroxide was found to lead to the formation of larger particles with average size of 15 nm and broader size distribution. In addition, the process of the reduction of palladium by PEG at different reduction stages was monitored by UV-Vis spectroscopy. CO-stripping voltammetry showed that reduction in hydrazine and in PEG allowed the preparation of Pd NPs with high electrochemically-active surface area. Such NPs are promising materials for electrocatalysis.
View Full-Text
Keywords: palladium nanoparticles; hydrazine; wet-synthesis; solvothermal polyol synthesis palladium nanoparticles; hydrazine; wet-synthesis; solvothermal polyol synthesis

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

Supplementary material


Share & Cite This Article

MDPI and ACS Style

Bugaev, A.L.; Polyakov, V.A.; Tereshchenko, A.A.; Isaeva, A.N.; Skorynina, A.A.; Kamyshova, E.G.; Budnyk, A.P.; Lastovina, T.A.; Soldatov, A.V. Chemical Synthesis and Characterization of Pd/SiO2: The Effect of Chemical Reagent. Metals 2018, 8, 135.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics



[Return to top]
Metals EISSN 2075-4701 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top