The 68Ga generator, obtained from New England Nuclear, Boston MA, USA through the Japan Radioisotope Association, uses 68Ge fixed by tin dioxide (SnO2) and placed in a glass column. This column is connected to inlet and outlet tubes and placed in a small lead casing. The generator activity was measured by an ionization chamber from the top (the top shield was removed for measurements). The elua...

Nanomaterials based on metal oxides are extensively studied for several applications due to their versatility. Improvements in performances can be obtained specific structural modifications. One possible modification is by doping the crystal structure, which affect materials structure and properties, especially nanosized particles. Electronic features among properties that modified through proc...

This study details the surface reaction chemistry relevant to the vapor deposition mechanism of SnO2 thin films by atomic layer deposition. The mechanism was elucidated by combining different spectroscopic studies. Initial nucleation of cyclic N,N-di-tert-butyl-butane-2,3-diamido tin(II) (1) consists of surface SiOH protonation of ligands as shown by diffuse reflectance infrared Fourier transfo...

Modern technologies cannot function without the production of thin films tin dioxide, which are most widely used mainly in three areas: as transparent electrodes, catalysts, and solid-state sensors various gases. Their use electrodes is related to high transmittance dioxide layers optical range, well with their low electrical resistivity. The effect short-term exposure plasma on composition str...

Ultrathin metal layers can be highly active carbon dioxide electroreduction catalysts, but may also be prone to oxidation. Here we construct a model of graphene confined ultrathin layers of highly reactive metals, taking the synthetic highly reactive tin quantum sheets confined in graphene as an example. The higher electrochemical active area ensures 9 times larger carbon dioxide adsorption cap...

A clear understanding of the mechanical behavior of nanometer thick films on nanostructures, as well as developing versatile approaches to characterize their mechanical properties, are of great importance and may serve as the foundation for understanding and controlling molecular interactions at the interface of nanostructures. Here we report on the synthesis of thin, compressible polyethylene ...

in this study, a specific ch4 sensor is fabricated based on interdigitated electrode that modified with core-shell of tungsten carbide/tin oxide (wc/sno2) nanoparticles by wet chemical method in different percents of carbon and tungsten. the morphology of wet chemical-synthesized wc/sno2 core-shell was evaluated by different methods such as patterned x-ray diffraction (xrd), and particle size a...

In situ solid-state NMR methodologies have been used to investigate the photocatalytic oxidation of ethanol (CH3CH2OH) over a series of SnO2-based photocatalysts. The adsorption of ethanol on commercially available SnO2 powder was studied using both cross-polarization 13C NMR and REDOR experiments, and showed the formation of two surface ethanol species, hydrogen-bonded ethanol at surface hydro...

A major area of application for nanowires and nanotubes is likely to be the sensing of important molecules, either for medical or environmental health purposes. The ultrahigh surface-to-volume ratios of these structures make their electrical properties extremely sensitive to surface-adsorbed species, as recent work has shown with carbon nanotubes,[1, 2] functionalized silicon nanowires and meta...