Sol–gel synthesis of SnO2–MgO nanoparticles and their photocatalytic activity towards methylene blue degradation

Sol–gel synthesis of SnO2–MgO nanoparticles and their photocatalytic activity towards methylene blue degradation:

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A simple sol–gel method for the synthesis of SnO₂–MgO nanoparticles is reported.

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Band gap of SnO₂ can be tuned by varying the magnesium content in SnO₂–MgO.

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SnO₂–MgO shows good photocatalytic activity towards degradation of methylene blue.

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Influence of In doping on the structural, photo-luminescence and alcohol response characteristics of the SnO2 nanoparticles

Influence of In doping on the structural, photo-luminescence and alcohol response characteristics of the SnO2 nanoparticles:

Highlights

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In-doped SnO₂ samples show smaller crystallinity with crystallite size: ∼7–9 nm.

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EDX analyses confirm the incorporation of indium ions in the SnO₂ lattice.

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Raman spectra are consistent with the results of XRD and SAED pattern.

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Alcohol response has been found to increase with the indium dopant concentration.

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3 at% In-doped sample exhibits maximum response (96.5%) to propan-2-ol at 250 °C.

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SnO2 nanorods grown on MCMB as the anode material for lithium ion battery

SnO2 nanorods grown on MCMB as the anode material for lithium ion battery:

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hemical precipitation and hydrothermal reaction were adopted to prepare the SnO2 nanorods/MCMB composite. Firstly Mesophase carbon micro beads (MCMB) were treated by the mixture of concentrated sulphuric acid and nitric acid, and then deposited with a little amount of SnO2 though chemical precipitation to form the primitive SnO2/MCMB composite. In hydrothermal condition and at certain concentration of Na2SnO3, such primitive composite turned into the SnO2 nanorods/MCMB composite eventually. SEM figures showed that SnO2 nanorods grow on the surface of MCMB extensively; TEM and XRD characterization indicated SnO2 nanorods presenting good single crystalline structure with 50nm in diameter and 400-500nm in length. The following electrochemical performance showed that the final composite exhibited initial discharge capacity of 1321.25mAh·g-1. Reversible capacity of 505.8mAh·g-1 was observed after 50 discharge/charge cycles at the constant current density of 100 mA·g-1.

Effects of Sn addition on phase formation and mechanical properties of TiCu-based bulk metallic glass composites

Effects of Sn addition on phase formation and mechanical properties of TiCu-based bulk metallic glass composites:

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Effects of Sn on mechanical properties of TiCu-based BMG composites were studied.
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Formation of brittle CuTi2 and ZrTiCu2 intermetallic compounds were suppressed.
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Excessive Sn addition deteriorated glass forming ability.
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Large plasticity and strong work-hardening in the BMG composites were obtained.
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Related mechanisms for the enhanced properties were discussed.
Abstract
A unique combination of macroscopic properties including high strength, large plasticity and strong work-hardening behavior was realized in TiCu-based bulk metallic glass (BMG) composite with proper addition of Sn. It was found that proper addition of Sn induced formation of BMG composites consisting of a single B2-TiCu phase via suppressing precipitation of the brittle CuTi2 and ZrTiCu2 intermetallic compounds. With excessive Sn addition, however, glass forming ability of the resultant alloys was severely decreased due to formation of additional Zr5Sn3 phase. Moreover, desirable elastic mismatch (e.g., Young's modulus and hardness) between the reinforcing crystalline phase and amorphous matrix, resulted from the Sn addition, remarkably accommodated large plasticity and strong work-hardening capability of the current BMG composites.

http://www.sciencedirect.com/science/article/pii/S0966979513001477

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Synthesis of Cu2ZnSnS4 films from co-electrodeposited Cu-Zn-Sn precursors and their microstructural and optical properties

Synthesis of Cu2ZnSnS4 films from co-electrodeposited Cu-Zn-Sn precursors and their microstructural and optical properties:

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A novel electrolyte formula and co-electrodeposition parameters are presented.
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The CZTS films are prepared from co-electrodeposited precursors.
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CZTS film forms by reaction among binary and ternary sulfides at high temp.
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Photoluminescence was obtained from prepared CZTS films at 550 °C for 1 h.
Abstract
The Cu2ZnSnS4 (CZTS) films were successfully prepared using a process of co-electro-deposition of Cu-Sn-Zn precursors by a novel electrolyte formula and optimized parameters on Mo substrates, succeeded by annealing in saturated sulfur atmosphere. The optimized electrolyte formula was achieved as 0.16 M CuSO4·5H2O, 0.33 M ZnSO4, 0.08 M SnCl2·2H2O, 2.25 M NaOH, 1.36 M C6H5Na3O7 and 1.00 M C4H6O6 under a voltage of -1.62 V for 5 min. Cu3Sn, Cu6Sn5 and Cu4Zn alloys were firstly synthesized at temperature lower than 300 °C. At 300 °C, these alloys decomposed in sulfur atmosphere and CuS, SnS and ZnS binary phases were formed. Ternary Cu4SnS6 formed through reaction between CuS and SnS above 350 °C. Finally, the CZTS films were synthesized through reaction among CuS, SnS, ZnS and Cu4SnS6 sulfides. CZTS films synthesized at 550 °C for 1 h had an average atomic ratio of 0.96 and 1.1 for Cu/(Zn + Sn) and Zn/Sn, respectively. The photoluminescence peaking at about 1.55 eV in the prepared samples demonstrated a high quality of the CZTS film.

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Global Indium Tin Oxide (ITO) Market -Industry Analysis, Size, Share, Growth, Trends, And Forecast, 2012 - 2018 on Environmental Expert

Environmental Expert: Indium tin oxide (ITO) is a solution of indium oxide and tin oxide which is found in a solid state. Typically, indium tin oxide has 90% of indium oxide and 10% of tin oxide by weight. When in thin layer it is colorless and transparent, while it forms a yellowish grey color when in bulk. Indium tin oxide is a member of transparent conducting oxide and is a widely used transparent conduction oxide owing to its excellent physical properties.

Browse Report : http://www.transparencymarketresearch.com/indium-tin-oxide.html

Indium tin oxide accounted for approximately 97% of the overall market for transparent conducting oxides in 2011. The steady growth of transparent and flexible electronics is the major factor which is propelling the growth of the global indium oxides market. However, the growing R&D in developing alternatives for indium tin oxide is acting as one of the major restraints for the market.

Asia is the leading producer and consumer of indium tin oxide due to the huge electronics market in China, Japan, and Korea. However, countries like Canada, Peru and Belgium also represent strong markets for ITO and are in the list of leading producers of ITO. Companies like Keeling Walker and Kurt J Lesker Co. among some others are the major companies operating in the global market.

This report is a complete study of current trends in the market, industry growth drivers, and restraints. It provides market projections for the coming years. It includes analysis of recent developments in technology, Porter’s five force model analysis and detailed profiles of top industry players. The report also includes a review of micro and macro factors essential for the existing market players and new entrants along with detailed value chain analysis.

Nano-silver-carbon colloids replace ITO in LCD displays

Espacenet - Bibliographic data: A liquid crystal substrate, a manufacturing method thereof, and a liquid crystal display (LCD) device. The liquid crystal substrate comprises an electrode (148). The electrode (148) is made of transparent conductive colloid. The transparent conductive colloid replaces an indium tin oxide (ITO) film as the electrode. The transparent colloid (such as nano-silver colloid and carbon nanotube colloid) undergoes coating and curing before forming a film. The cost is low, and the process is simple. Only coating and drying are performed before etching, so that costs incurred by the equipment for Physical Vapor Deposition (PVD) during preparation of ITO are reduced, the factory (FAB) space is effectively used, the use of metals such as indium and tin is reduced, the equipment costs and waste liquid treatment for manufacturing an LCD are reduced, the process time is reduced, and the number of outputs is increased.

Nippon Steel Tin in Stainless Steel patent

Espacenet The present invention addresses the problems of not only improving the non-corroding properties and non-rusting properties of a chromium-containing ferritic stainless steel but also improving the non-ridging properties, while directing attention to tin. A relationship between Ap, which indicates the proportion of the ? phase as measured at 1,100 C and which is determined from given components, and tin in ferritic stainless steels that have a two-phase structure composed of a ? in a hot-rolling temperature range is derived. Tin is added in a proper amount, and hot rolling is conducted at 1,100 C or higher so that the total rolling reduction is 15% or more. Thus, a ferritic stainless-steel sheet which had satisfactory non-ridging properties, was excellent in terms of non-corroding properties and non-rusting properties, and was applicable to general durable consumer goods was obtained. 0.060=Sn=0.634-0.0082Ap 10=Ap=70.

Electrical and catalytic properties of cerium-tin mixed oxides in CO depollution reaction

Scopus: AC electrical conductivity of CeO2 catalyst samples containing 5, 10 and 20wt% SnO2 prepared by co-precipitation and of SnO2 and CeO2 pure oxides (prepared under the same conditions) was measured in operando conditions. The measurements were carried out at a frequency of 1592Hz in the temperature range from room temperature up to 400�C, using successively programmed heating-cooling cycles under various atmospheres. The catalyst samples were tested in the catalytic oxidation of CO in presence and in absence of oxygen in the same temperature range (30-400�C). An improved deep oxidation of carbon monoxide has been found with these co-precipitated mixed oxides compared to pure components, leading to a better catalytic activity at lower temperature. The band gap energies were estimated based on the UV-Vis spectra and correlated with XRD results and AC electrical conductivity data. These results show the influence of the tin oxide on the electrical properties and oxygen mobility of the catalytic systems studied and on the surface behaviour of ceria

Yunnan Tin Group Saw Sharp Profit Decline in 2012 amid Falling Prices and Rising Inventories - Shanghai Metals Market

SMM Annual Reports: According to Yunnan Tin Group’s annual report for 2012, the company produced 39,791 mt of tin ingot last year, up 12.2%, and 17,385 mt of tin chemical products, up 22.8%. Its tin semis output was 19,629 mt in 2012, rising 8.8% from 2011. Despite increasing output, the falling tin prices and sluggish demand left its profit down 98.55% last year. Yunnan Tin Group’s tin ingot inventories increased 79% to 3,921 mt in 2012, while sales only edged up 5.7% to 39,860 mt, reflecting the depressed demand. The poor sales resulted in a surge in fi......

Cadmium tin oxide solar cell

Espacenet: In one aspect of the present invention, a method is included. The method includes thermally processing an assembly to form at least one transparent layer. The assembly includes a first panel including a first layer disposed on a first support and a second panel including a second layer disposed on a second support, wherein the second panel faces the first panel, and wherein the first layer and the second layer include substantially amorphous cadmium tin oxide. Method of making a photovoltaic device is also included.

COATED ARTICLE WITH LOW-E COATING INCLUDING TIN OXIDE INTERLAYER

Espacenet A coated article is provided which may be heat treated (e.g., thermally tempered) in certain instances. In certain example embodiments, an interlayer of or including a metal oxide such as tin oxide is provided under an infrared (IR) reflecting layer so as to be located between respective layers comprising silicon nitride and zinc oxide. It has been found that the use of such a tin oxide inclusive interlayer results in significantly improved mechanical durability, thermal stability and/or haze characteristics.

     US2013108848  (A1)  -  COATED ARTICLE WITH LOW-E COATING INCLUDING TIN OXIDE INTERLAYER
Inventor(s):     NUNEZ-REGUEIRO JOSE [US]; DIETRICH ANTON [CH]; LINGLE PHILIP J [US]; THOMSEN SCOTT V [US]; WANG HONG [CN]; LEMMER JEAN-MARC [US]; BASSETT NANCY [US]; CORSNER BRYCE [US] +
Applicant(s):     GUARDIAN INDUSTRIES [US]; GUARDIAN INDUSTRIES [US] +

US2011042355 TIN FREE SILYL-TERMINATED POLYMERS

US2011042355: tin-free catalyst to form an isocyanate reacted hydrosilylated polymer, and optionally reacting the isocyanate reacted hydrosilylated polymer with a polyol having a nominal functionality of at least 2 to form a polyol reacted crosslinkable silane-terminated polymer.

WO/2012/003212            International Application No.:            PCT/US2011/042355
Publication Date:     05.01.2012     International Filing Date:     29.06.2011
IPC:    
C08G 18/18 (2006.01), C08G 18/20 (2006.01), C08G 18/22 (2006.01), C08G 18/28 (2006.01), C08G 18/48 (2006.01), C08G 18/71 (2006.01), C08G 18/76 (2006.01), C08G 18/83 (2006.01), C08G 77/46 (2006.01)    
Applicants:     DOW GLOBAL TECHNOLOGIES LLC [

ScienceDirect.com - Materials Characterization - Hydrothermal synthesis of flowerlike SnO2 nanorod bundles and their application for lithium ion battery

ScienceDirect.com - Materials Characterization - Hydrothermal synthesis of flowerlike SnO2 nanorod bundles and their application for lithium ion battery:

SnO2 nanorod bundles were synthesized by hydrothermal method. Field-emission scanning electron microscopy and transmission electron microscopy images showed that the as-prepared flowerlike SnO2 nanorod bundles consist of tetragonal nanorods with size readily tunable. Their electrochemical properties and application as anode for lithium-ion battery were evaluated by galvanostatic discharge–charge testing and cycle voltammetry. SnO2 nanorod flowers possess improved discharge capacity of 694 mA h g− 1 up to 40th cycle at 0.1 C.

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Elaboration and high resolution TEM characterization of SnO2 nanowires

ScienceDirect.com - Microelectronic Engineering - Elaboration and high resolution TEM characterization of SnO2 nanowires:

Tin dioxide is a wide-band gap (3.6 eV) semiconductor with numerous potential applications in batteries, gas sensors, and dye-sensitized solar cells. In this study nanocrystalline tin oxide nanowires have been synthesized by electrochemical deposition and oxidation in anodic aluminum oxide template. Electrochemical synthesis has been controlled by chronoamperometry and oxidation by X-ray diffraction. Polycrystalline nanowires with 140 nm in diameter and 3 μm in length have been obtained. Scanning electron microscopy (SEM) and transmission electron microscopy (TEM) studies have highlighted a uniform nanowire structure. High resolution transmission electron microscope (TEM FEI Tecnai G2-20 twin) was employed to characterize the crystalline structure of 5 nm diameter tin oxide grains. Tetragonal tin oxide phase has been characterized by X-ray powder diffraction and the interplanar distance of 0.32 nm corresponding to the SnO2 crystal obtained by HRTEM has confirmed the structure.

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