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Wyświetlanie 1-3 z 3
Tytuł:
Reduced graphene oxide and inorganic nanoparticles composites – synthesis and characterization
Autorzy:
Onyszko, M.
Urbaś, K.
Aleksandrzak, M.
Mijowska, E.
Powiązania:
https://bibliotekanauki.pl/articles/778813.pdf
Data publikacji:
2015
Wydawca:
Zachodniopomorski Uniwersytet Technologiczny w Szczecinie. Wydawnictwo Uczelniane ZUT w Szczecinie
Tematy:
reduced graphene oxide
platinum nanoparticles
palladium nanoparticles
zirconia nanoparticles
manganese dioxide nanoparticles
Opis:
Graphene – novel 2D material, which possesses variety of fascinating properties, can be considered as a convenient support material for the nanoparticles. In this work various methods of synthesis of reduced graphene oxide with metal or metal oxide nanoparticles will be presented. The hydrothermal approach for deposition of platinum, palladium and zirconium dioxide nanoparticles in ethylene glycol/water solution was applied. Here, platinum/reduced graphene oxide (Pt/RGO), palladium/reduced graphene oxide (Pd/RGO) and zirconium dioxide/reduced graphene oxide (ZrO2/RGO) nanocomposites were prepared. Additionally, manganese dioxide/reduced graphene oxide nanocomposite (MnO2/RGO) was synthesized in an oleic-water interface. The obtained nanocomposites were investigated by transmission electron microscopy (TEM), X-ray diffraction analysis (XRD), Raman spectroscopy and thermogravimetric analysis (TGA). The results shows that GO can be successfully used as a template for direct synthesis of metal or metal oxide nanoparticles on its surface with a homogenous distribution.
Źródło:
Polish Journal of Chemical Technology; 2015, 17, 4; 95-103
1509-8117
1899-4741
Pojawia się w:
Polish Journal of Chemical Technology
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Experimental Study on the Melting Temperature, Microstructural and Improved Mechanical Properties of Sn58Bi/Cu Solder Alloy Reinforced with 1%, 2% and 3% Zirconia (ZrO2) Nanoparticles
Autorzy:
Amares, S.
Durairaj, R.
Kuan, S. H.
Powiązania:
https://bibliotekanauki.pl/articles/2049682.pdf
Data publikacji:
2021
Wydawca:
Polska Akademia Nauk. Czytelnia Czasopism PAN
Tematy:
SnBi solder
low melting temperature
microstructure
hardness
shear load
Opis:
This paper investigates the influence of 1%, 2% and 3% zirconia (ZrO2) nanoparticles to the melting, microstructural and mechanical properties of the Sn58Bi solder. Melting temperatures of 145.11°C, 140.89°C and 143.84°C were attained correspondingly for the 1%, 2% and 3% ZrO2 reinforced Sn58Bi solder. The microstructures especially the spacing between the lamellar structures of the Sn58Bi solder alloy was narrower for 1% ZrO2 added with Sn58Bi solder alloy. The highest and lowest hardness value of 32.28 HV and 27.62 HV was recorded for 1% and 2% ZrO2 additions respectively. Highest shear strength value was noted for the 3% ZrO2 added SnBi/Copper joint with 0.8712 kN, while the lowest value of 0.4380 kN noted for the 1% ZrO2 added SnBi/Copper joint. The presence of small-sized ZrO2 nanoparticles can be seen to be properly dispersed at the solder joint to increase the shear load at maximum joint stress.
Źródło:
Archives of Metallurgy and Materials; 2021, 66, 2; 407-418
1733-3490
Pojawia się w:
Archives of Metallurgy and Materials
Dostawca treści:
Biblioteka Nauki
Artykuł
Tytuł:
Reusable Nanocatalyst: Zirconia and Sulfated Zirconia
Autorzy:
Gondaliya, M. B.
Maheta, T.
Mamtora, M. J.
Shah, M. K.
Powiązania:
https://bibliotekanauki.pl/articles/411589.pdf
Data publikacji:
2014
Wydawca:
Przedsiębiorstwo Wydawnictw Naukowych Darwin / Scientific Publishing House DARWIN
Tematy:
Nanocatalyst
nanoparticles
Sulfated Zirconia
synthesis
Benzodiazepines
solid catalyst
solvent-free
green chemistry
Opis:
1,5-benzodiazepines have been synthesized by Nano Zirconia and Nano Sulfated Zirconia in solvent free conditions. Synthesis was carried out by conventional as well as microwave method. Benzodiazepines were synthesized by reacting o-phenylenediamine and few ketones in the presence of catalytic amount of Nanoparticles. Particles used were sized in between 53-100 nm. Nanoparticles were characterized by FT-IR, DLS and powder XRD analysis.
Źródło:
International Letters of Chemistry, Physics and Astronomy; 2014, 17, 3; 295-302
2299-3843
Pojawia się w:
International Letters of Chemistry, Physics and Astronomy
Dostawca treści:
Biblioteka Nauki
Artykuł
    Wyświetlanie 1-3 z 3

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