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The Effect of Laser Processed Nano-SiC-Ni Metal Ceramic on the Surface Properties of the Iron-Based Material
Appraisal System Grey Relation Evaluation Theory Laser Alloying Metal-Ceramic Silicon Carbide (SiC)
2011/11/22
In this article, we have carried out the Ni based self fluxing alloy powder and studied the effect on the laser alloying of 45steel layer which contains different weight percentage of nano-SiC powders...
Analysis of Influencing Factors on the Structure and Surface Properties of Palygorskite
Crystal Structure Dispersion Component Heat Treatment Palygorskite Surface Free Energy Water Vapor Absorption
2011/11/14
The relationship between surface properties and water vapor absorption performance was studied according to crystal structure and surface free energy of purified palygorskite. The results show that th...
Surface Properties and Catalytic Performance of Pt/PrSrCoO4 Catalysts for NO Reduction by CO
Perovskite-type A2BO4 Pt/PrSrCoO4 XPS NO reduction by CO
2010/4/19
Perovskite-type Pr2-xSrxCoO4\pm l mixed oxides were prepared by different calcination temperatures and were investigated by XRD, BET, TPD, TPR and XPS methods. These catalysts possess high catalytic a...
Impacts of land surface properties and atmospheric CO2 on the Last Glacial Maximum climate：a factor separation analysis
land surface properties atmospheric CO2 Last Glacial Maximum climate
2009/12/3
Many sensitivity studies have been carried out, using climate models of different degrees of complexity to test the climate response to Last Glacial Maximum boundary conditions. Here, instead of addin...
Surface Properties of CdS Nanoparticles
CdS Nanoparticles Electronic structure Photoluminescence
2010/9/29
With a view to contribute to the understanding the surface effects on optical properties process, and its hole in the electronic properties of the nanoparticles, CdS based nanoparticles are characteri...
Influence of Synthesis pH on Kaolinite “Crystallinity” and Surface Properties
Defect Density FTIR Hydrothermal Synthesis Kaolinite pH Surface Speciation XRD
2011/12/5
Abstract: Hydrothermal syntheses were performed at various pH values and temperatures to induce variability in kaolinite defect density. Temperature of synthesis ranged from 200 to 240°C, for 21 d. In...
Application of Inverse Gas Chromatography to the Study of the Surface Properties of Slates
Inverse Gas Chromatography Slate Surface
2011/12/22
Abstract: Inverse gas chromatography (IGC) at zero surface coverage was used for determining the surface characteristics of a slate sample. Previously this sample had been characterized by means of X-...
Effects of Iron and Aluminium Oxides on the Colloidal and Surface Properties of Kaolin
Aluminium oxides Colloidal stability Iron oxides Kaolinite PZC
2011/12/28
The association between clay silicates, and iron and aluminium oxides has a major influence on the chemical and physical properties of soils. In this work the interaction of a kaolin substrate with ir...
Effect of Selective Dissolution on Charge and Surface Properties of an Acid Soil Clay
Anion exchange Cation exchange Electrophoresis Inceptisol Soil clay Surface charge Zeta potential
2012/2/6
To evaluate the importance of oxides to the surface chemistry of acid mineral soils, clay fractions were separated from a surface and subsurface horizon of an Inceptisol representative of many of the ...
Surface Properties of Smectites Exchanged with Mono- and Biprotonated 1,4-Diazobicyclo(2,2,2)-Octane
Dabco Interlayering Pillar Smectite Surface area
2012/2/7
Smectites exchanged to various degrees with mono- or biprotonated 1,4-diazobicyclo(2,2,2)- octane (Dabco) have a porous structure in which the organic molecule acts as a 乬pillar.乭 Less Dabco2+ than Da...
Surface Properties of Sepiolite from Amboseli, Tanzania, and Its Catalytic Activity for Ethanol Decomposition
Adsorption Catalysis Ethanol Pore size Sepiolite Surface area
2012/2/7
The catalytic activity of sepiolite from Amboseli, Tanzania, for the dehydration and dehydrogenation of ethanol at 150°–300°C has been studied using a flow reactor. Both reactions occur, but the catal...
Surface Properties of Allophane, Halloysite, and Imogolite
Adsorption Allophane Halloysite Imogolite Infrared spectroscopy Phosphate Surface charge
2012/2/7
The adsorption of sodium, chloride, and phosphate ions by allophane, imogolite, and halloysite has been studied in relation to the surface structure of the mineral samples. The high adsorption of phos...
SURFACE PROPERTIES OF SEPIOLITE FROM AMBOSELI,TANZANIA, AND ITS CATALYTIC ACTIVITY FOR ETHANOL DECOMPOSITION
Adsorption Catalysis Ethanol Pore size Sepiolite Surface area
2011/11/16
The catalytic activity of sepiolite from Amboseli, Tanzania, for the dehydration and dehydrogenation of ethanol at 150~176 has been studied using a flow reactor. Both reactions occur, but the catalyst...
The Effect of Aluminum on the Surface Properties of Kaolinite
Aluminum Surface Properties Kaolinite
2012/2/15
Aluminum ions as well as hydroxide precipitates promote improved extraction of iron from kaolinites during leaching. Selective aggregation of ultrafine particles in kaolinites, seemingly induced by pr...
Cation Migration into Empty Octahedral Sites and Surface Properties of Clays
Cation Migration Empty Octahedral Sites Surface Properties Clays
2012/2/20
The migration of small cations into the empty octahedral sites of dioctahedral clays allows one to study the local effects in the trioctahedral structure and the consequences of the exchange capacity ...