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Cuprous oxide (Cu 2 O) and cupric oxide (CuO) are widely available and low cost raw materials. Their applications as precursors for wet chemical synthesis of metallic Cu materials are greatly limited due to their insoluble in water and most organic solvents.In this work, copper superfine particles (Cu SPs) are synthesized using Cu 2 O …
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Section snippets Catalyst materials. The nanoparticle form of iron oxide for use as a catalyst was obtained from Mach I Inc. This material was supplied as NANOCAT ® superfine iron oxide (Fe 2 O 3) with a median particle size of 3 nm, specific surface area of 250 m 2 /g, and bulk density of 0.5 g/cm 3 [7]. The free flowing powder was reported to …
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Herein, we report a high-performance, film-based supercapacitor via a thermal reduction of graphene oxide (GO) in air. The reduced, layer-structured …
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The utility model discloses a superfine niobium oxide preparation device comprising a reactor. The reactor is provided with a charging hole, a discharging hole, an ammonia inlet hole and an ammonia exhaust hole, and is internally provided with a stirring device and an ammonia distributor. For niobium oxide powder manufactured by niobium …
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Download scientific diagram | Temperature history of superfine aluminum powders (m=4 g) combustion in air. from publication: Study of Aluminum Nitride Formation by Superfine Aluminum Powder ...
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The degree of fiber damage could be deduced by the change in the appearance of the felt at high temperatures. In this paper, the superfine glass fiber felt was heat treated under 400 °C, 450 °C, 500 °C, 550 °C, and 600 °C, 650 °C, respectively, in air, using a ZSX1400 Muffle furnace (Cinite (Beijing) Technology Corp., Ltd).
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The usage of superfine pulverized coal as reburning fuel for the control of nitrogen oxide emissions has received great attention in USA since the year of 1999 [8]. The combustion advantage of superfine pulverized coal includes higher combustion efficiency, lower ignition temperature, and better burnout performance than conventional coal.
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The discs are made up of aluminum oxide particles from coarse to superfine (50 to 80 μ), whereas the spiral wheels are made up of diamond particles impregnated in thermoplastic elastomer [10, 11]. ...
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Herein, we reported the controlled oxidation of Cu superfine particles (SPs) to form Cu/CuO nanostructure via reducing CuO with monoethanolamine, oxidized with …
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A method of using the AIP to lower autoignition temperatures and an air bag inflator containing the AIP are also disclosed. WO1998018661A1 - Autoignition propellant containing superfine iron oxide and method of lowering the autoignition temperature of an igniter - Google Patents
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Superfine pulverized coal, with the average particle size below or around 20 μm, is used as the reburning fuel. The data of flue gas concentration (NOx, HCN, NH3, CH4, O2, CO, CO2 etc.) is ...
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Herein, a versatile air filter was prepared with loading the reduced graphene (rGO) and zinc oxide on the superfine glass fibre (s-GF) with the three-dimensional network structure by in situ sol–gel process followed by calcination, which aims to achieve synergistic high-efficiency air filtration and rapid response to photocatalytic ...
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iron oxide superfine iron propellant Prior art date Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Expired - Lifetime Application number US08/740,531 Other languages English (en) Inventor
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A series of the CeO2-based catalysts loaded on TiO2, TiO2-SiO2, TiO2-Al2O3, and TiO2-SiO2-Al2O3 supports were prepared by incipient impregnation method for the selective catalytic reduction (SCR) of NO by NH3 in the presence of oxygen. The SCR activities of the catalysts with different supports incr …
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150'C and 200'C in air at saturated water vapor conditions ( relative humidity) for exposure times up to about 1400 hours. Gamma radiolysis produces NO,, gases when air is present, and if moisture is also present, nitric acid can be produced. ... where W is the oxide thickness or weight gain, C is a constant depending on ion concentration ...
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Herein, a versatile air filter was prepared with loading the reduced graphene (rGO) and zinc oxide on the superfine glass fibre (s-GF) with the three-dimensional network structure …
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Aluminum oxide has been introduced into SiC f /(SiC + B 4 C) composites to improve the crack self-healing property in O 2 /H 2 O atmosphere. The observation of the surface and interior morphologies of …
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1. Introduction. Semiconductor photocatalysis has been widely regarded as one of the most promising technologies in air purification especially in high population density occasions where the antibacterial air filtration is urgently required [1,2].What is more, the superfine glass fibre (s-GF) has better physical properties in the field of air filtration …
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The possible formation mechanism of flower-like cobalt hydroxide is discussed on the basis of experimental results. Cobalt oxide (Co 3 O 4) flowers have also been obtained by thermal decomposition of cobalt hydroxide flowers in air at 400 °C. The products were characterized by powder XRD, TEM, selected-area electron diffraction …
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Cuprous oxide (Cu 2 O) and cupric oxide (CuO) are widely available and low cost raw materials. Their applications as precursors for wet chemical synthesis of metallic Cu materials are greatly limited due to their insoluble in water and most organic solvents. In this work, copper superfine p … High-efficiency synthesis of Cu superfine ...
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The present invention discloses preparation process of superfine boron oxide powder as lubricant additive. The process includes the following steps: dissolving boric acid in solvent to obtain precursor, spray drying in certain technological conditions to obtain superfine boron oxide powder, capturing with the capturing liquid comprising dispersant and base …
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The superfine HfC of TaC additives did not ameliorate the mechanical properties of the composite because of the formation of some oxide impurities. The 3.2 wt% superfine VC additive improved the resultant mechanical properties of the composite because of the homogenous microstructure with refined grains. The excessive superfine …
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Titanium dioxide has a number of unique characteristics that make it ideally suited to many different applications. It has an extremely high melting point of 1 843ºC and boiling point of 2 972ºC, so occurs naturally as a solid, and, even in its particle form, it is insoluble in water. TiO 2 is also an insulator.. TiO 2 absorbs UV light. This property makes it appear bright …
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The fire extinguishing experiments were performed in a 1.0 m 3 confined space surrounded by high-temperature-resistant organic plexiglass. The details of the apparatus are shown in Fig. 1 (a). The top and bottom surfaces of the cube included 10 cm diameter air holes and three holes cut into the right-side wall of the box at heights of 20, 40, and 60 …
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Herein, a versatile air filter was prepared with loading the reduced graphener and Zinc oxide on the superfine glass fiber with the three-dimensional network structure by in-situ sol-gel process followed by calcination, which aims to achieve synergistic high efficiency air filtration and rapid response to photocatalytic antibacterial under ...
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3. The autoignition propellant according to claim 1 wherein the autoignition temperature is reduced from approximately 195° C. without said B) superfine iron oxide to about 160° C. with said B) superfine iron oxide. 4. The autoignition propellant according to claim 1 wherein the components of . A) are present in the following amounts:
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Product Description. 5 Lbs. of 400 grit aluminum oxide. This abrasive is used in the Paasche Airbrush AEC, AEC-K, AECR & ER-1S etching tools. Can be used for etching hard surfaces like glass or metal or for lighter work like paint or rust removal. The 400 grit will give a finner finish then the 240 grit but not cut quite as fast.
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The bulk structural information of Superfine, Densinox-T, Fe and Fe–10Cr was obtained by XRD (Figs. 5 and 6, and Tables 3 and 4). Figure 5 shows the XRD spectra for the Superfine and Densinox-T natural iron oxides, and Fig. 6 shows the XRD patterns of Fe–10Cr. For fresh reduced samples, as expected, not all iron oxides were reduced after ...
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The invention relates to the powder metallurgy domain, specially used in the preparation method of nano/superfine ferric oxide. Tts characteristic lies in: Uses Fe(NO)3 the crystal (Fe (NO3) 3 - 9H2O), the ferrous sulfate crystal (FecSO4 - 7H2O), the ferric chloride crystal (FeCl3 - 6H2O) as the raw material, which matches the density - 30wt% …
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The development of high-performance air filter has become more and more important to public health. However, it has always been very challenging for developing a multifunctional air filter to simultaneously achieve excellent filtration and antibacterial ...
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