Results 271 to 280 of about 31,227 (312)
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Materials Characterization, 2007
The gas-sensitivity properties of SnO2 thin films as well as Ag/SnO2 and SnO2/Ag structures in an atmosphere containing propane (C3H8) were examined. The SnO2 and Ag films were deposited by a spray pyrolysis technique and vacuum evaporation, respectively. Soda-lime glass was used as the substrate for all the structures in this study.
J. Aguilar-Leyva +2 more
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The gas-sensitivity properties of SnO2 thin films as well as Ag/SnO2 and SnO2/Ag structures in an atmosphere containing propane (C3H8) were examined. The SnO2 and Ag films were deposited by a spray pyrolysis technique and vacuum evaporation, respectively. Soda-lime glass was used as the substrate for all the structures in this study.
J. Aguilar-Leyva +2 more
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Microporous and Mesoporous Materials, 2019
Abstract Catalysts based on natural zeolite – clinoptilolite loaded with either SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) were prepared and tested in the esterification of levulinic acid (LA) with octanol or ethanol. The Sn content in TOHCLI and STOHCLI varied from 4.5 to 12.3 wt.%.
J. Pavlovic +7 more
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Abstract Catalysts based on natural zeolite – clinoptilolite loaded with either SnO2 (TOHCLI) or sulfated SnO2 (STOHCLI) were prepared and tested in the esterification of levulinic acid (LA) with octanol or ethanol. The Sn content in TOHCLI and STOHCLI varied from 4.5 to 12.3 wt.%.
J. Pavlovic +7 more
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Microchimica Acta, 2018
Several nanocomposites of tin oxide with CuS, SnS or Cu@SnS were prepared and used to modify carbon paste electrodes (CPEs). The structure and morphology of the materials were studied by XRD and SEM techniques. Cyclic voltammetry and electrochemical impedance spectroscopy were applied to investigate their electrochemical properties.
Ebrahim, Naghian, Mostafa, Najafi
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Several nanocomposites of tin oxide with CuS, SnS or Cu@SnS were prepared and used to modify carbon paste electrodes (CPEs). The structure and morphology of the materials were studied by XRD and SEM techniques. Cyclic voltammetry and electrochemical impedance spectroscopy were applied to investigate their electrochemical properties.
Ebrahim, Naghian, Mostafa, Najafi
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Catalytic sites on SnO2 and TiO2&SnO2 for the isomerization of 1-butene
Journal of Catalysis, 1976The nature of active sites for the isomerization of 1-butene on SnO 2 and TiO 2 SnO 2 with various treatments has been studied. Over SnO 2 evacuated at 400–600 °C, a highly selective isomerization of 1-butene to cis -2-butene was observed ( cis-/trans -2-butene ≈19).
M ITOH, H HATTORI, K TANABE
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Thin film sensors of SnO2-CuO-SnO2 sandwich structure to H2S
Sensors and Actuators B: Chemical, 2001Abstract SnO 2 thin films were prepared using SnCl 4 and O 2 as precursors by means of plasma enhanced chemical vapour deposition (PECVD) method, and were modified with CuO by soaked technique to form a SnO 2 -CuO-SnO 2 sandwich structure.
Wu Yuanda +4 more
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Electrooptical properties of SnO2 spray–GaSe and SnO2 spray–GaTe heterojunctions
Physica Status Solidi (a), 1978A new heterojunction using III-VI lamellar GaTe compound and SnO2 spray is fabricated. The study of I–U characteristics of GaSe–SnO2 and GaTe–SnO2 diodes versus temperature show strong analogy between the modes of conduction in both the devices. From the variation versus temperature of the space charge limited current part of the characteristic, trap ...
L. Gouskov, A. Gouskov, B. Girault
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SnO2 reduction by hydrogen bombardment and its effect on SnO2/a-Si interfaces
Journal of Non-Crystalline Solids, 1989Abstract Commercial SnO 2 and its interface with a-Si have been studied by photoemission. The valence band (V.B.) spectra show that in some regions of SnO 2 a large amount of metallic Sn is present. Similar V.B. spectra were obtained in good regions as a consequence of H bombardment.
C. Giannetti +6 more
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Nanocrystalline SnO2 and In-doped SnO2 as anode materials for lithium batteries
Solid State Ionics, 2004Abstract SnO2 is one of the promising candidates for the use as anode materials in lithium batteries. This work describes the X-ray absorption near-edge spectra (XANES) and the electrochemical properties of nanocrystalline SnO2 and In-doped SnO2 via a soft chemistry route.
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Impedance of the SnO2|liquid crystal ZhK-440|SnO2 system
Russian Journal of Electrochemistry, 2016The SnO2|ZhK-440|SnO2 system, where the ZhK-440 is a liquid crystal mixture consisting of 2/3 parts of p-butyl-p'-methyloxyazoxybenzene and 1/3 part of p-butyl-p'-heptanoyloxyazoxybenzene, was studied by impedance spectroscopy. The impedance spectrum of the system contained the contributions from electric conductivity and bulk and electrode ...
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Sensing Behavior of SnO2-Graphene Nanocomposites
2013The sensing properties of SnO2-graphene composites prepared by a one-pot non-aqueous procedure assisted by microwave treatment have been investigated. The combined characteristics of the microwave heating and the “benzyl alcohol route” allowed to selectively grow, at the temperature of 185 °C and in only few minutes, metal oxide nanoparticles on the ...
NERI, Giovanni +4 more
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