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IDENTIFICATION OF IRON OXIDES MINERALS IN WESTERN JAHAJPUR REGION, INDIA USING AVIRIS-NG HYPERSPECTRAL REMOTE SENSING
AVIRIS-NG Iron-oxide Limonite Western Jahajpur belt Hyperspectral remote sensing
2019/2/27
Hyperspectral remote sensing is being considered as an advanced technique for mineral identification of surficial deposits. In this research different iron oxides minerals such as limonite, goethite h...
Discovery could lead to new catalyst design to reduce nitrogen oxides in diesel exhaust（图）
new catalyst design reduce nitrogen oxides diesel exhaust
2017/9/5
Researchers have discovered a new reaction mechanism that could be used to improve catalyst designs for pollution-control systems to further reduce emissions of smog-causing nitrogen oxides in diesel ...
Synthesis and characterization of ZnO-Al2O3 oxides as energetic electro-catalytic material for glucose fuel cell
glucose energy materials electro-catalyst
2015/12/23
One of the thrust areas of research is to find an alternative fuel to meet the increasing demand for energy. Glucose is a good source of alternative fuel for clean energy and is easily available in ab...
Catalytic methanation reaction over alumina supported cobalt oxide doped noble metal oxides for the purification of simulated natural gas
natural gas cobalt oxide noble metal catalyst methanation reaction
2014/7/24
A series of alumina supported cobalt oxide based catalysts doped with noble metals such as ruthenium and platinum were prepared by wet impregnation method. The variables studied were difference ratio ...
Wide band gap tunability in complex transition metal oxides by site-specific substitution
Wide band gap tunability complex transition metal oxides site-specific substitution
2012/2/24
Fabricating complex transition metal oxides with a tuneable band gap without compromising their intriguing physical properties is a longstanding challenge. Here we examine the layered ferroelectric bi...
Evaluation of Nitrogen Oxides Pollution in Takamatsu and Utazu Area in Kagawa Prefecture, Japan
Nitrogen Oxides NO2 NO Utazu Area Takamatsu Area
2013/3/12
We evaluate nitrogen oxides pollution in Takamatsu and Utazu area in Kagawa prefecture, Japan. Annually observations for nitrogen oxides (nitrogen dioxide; NO2, nitric oxide; NO) (1990-2007) were obta...
Reduction of Iron Oxides in Solid Wastes Generated by Steelworks
Solid waste Reduction Iron oxides Steel plants Sponge iron Recovery
2009/10/13
Solid wastes generated by integrated iron and steel works cause environmental pollution and therefore must be discarded accordingly. Extensive research is being conducted for the recovery and eliminat...
Homogeneous Oxidation of Volatile Nitrogen (NH3, HCN) to Nitrogen Oxides: A Modeling Study of the Effect of Alkali Vapors
Alkali NOx reduction Chemkin Kinetic modeling
2009/10/10
The effect of alkali vapors in the combustion of different types of Scandinavian fuels, i.e. Finnish black liquor, Swedish wood and Danish straw, was studied based on detailed chemical kinetic modelin...
Researchers make carbon nanotubes without metal catalyst--Oxides, as well as metals, seem to be able to sprout carbon nanotubes, study finds
carbon nanotubes metal catalyst oxides
2009/8/18
Carbon nanotubes - tiny, rolled-up tubes of graphite - promise to add speed to electronic circuits and strength to materials like carbon composites, used in airplanes and racecars. A major problem, ho...
Behavior of Oxygen of Cerium Composite Oxides on Catalytic Combustion of Carbon Particulate
Cerium composite oxide Isotopic oxygen exchange Diesel particulate filter
2009/8/4
Catalyzed diesel particulate filter (CDPF) is an effective way of reducing the carbon particles contained in the emissions of diesel vehicles. The behavior of the oxygen of cerium composite oxides du...
Reduction of MoO3 to Porous Molybdenum Oxides and Its Catalytic Properties for Alkane Isomerization
Molybdenum trioxide Molybdenum hydrogen bronze Hydrogen reduction
2009/7/28
The catalytic activity of partially reduced Pt/MoO3 for alkane isomerization was investigated. The surface area of Pt/MoO3 was markedly enlarged by H2 reduction to a maximum after reduction at 673 K f...
Catalytic Activity of Iron Oxides Supported on γ-Al2O3 for Methane Oxidation
Iron oxide catalyst Goethite Hematite catalyst Alumina support
2009/7/24
Three kinds of catalysts of goethites supported on γ-Al2O3 (Fe/γ-Al2O3), SiO2-Al2O3 (Fe/SiO2-Al2O3) and SiO2 (Fe/SiO2) were investigated in terms of the catalytic activity of methane oxidation. The sp...
Lowering Combustion Temperature of Carbon Particles on Pt-supported Ceria Series Oxides
Cerium composite oxide Platinum catalyst Diesel particulate filter
2009/7/24
Catalyst-loaded wall-flow type honeycomb is effective for reducing the level of carbon particle emissions from diesel engines. Pt-supported oxides were investigated for the oxidation and reduction of...
Storage and Supply of Pure Hydrogen Mediated by the Redox of Iron Oxides
Hydrogen storage Hydrogen formation Magnetite Iron medium Redox Sintering
2009/7/24
Methods for the storage and supply of pure H2 are proposed based on the reduction of iron oxide with H2 (Fe3O4 + 4H2→3Fe + 4H2O) followed by the oxidation of the iron metal with H2O (3Fe + 4H2O→Fe3O4...
Oxidation of Isobutane over Complex Oxides Containing V and Mg2V2O7 Catalysts Partially Substituted by Transition Metal Ions
Isobutane Oxidation Oxidative dehydrogenation Acidic site
2009/7/24
The oxidation of isobutane was investigated over various complex vanadium oxide catalysts. Mg2V2O7, MgV2O6, and Mg3V2O8 are effective catalysis for isobutene formation at >300°C. Cu2V2O7 and CaV2O6 s...