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高分散度Pt-Ir疏水催化剂制备及氢-水液相交换催化性能研究（Highly Dispersed Pt-Ir Hydrophobic Catalysts: Preparation and Catalytic Activity for Hydrogen-water Liquid Exchange Reaction）
疏水催化剂 氢-水液相催化交换 氢同位素分离 微波加热法 Pt-Ir/C
2010/8/18
用乙二醇作为碳黑分散溶剂，微波辐射快速加热，1～2 MPa压力下制备了Pt/C及不同Pt、Ir比例的Pt-Ir/C催化剂，用浸渍还原法制备了Pt-Ir/C催化剂，并用XRD，TEM和XPS对催化剂进行了表征。将两种方法制备的Pt/C，Pt-Ir/C催化剂与聚四氟乙烯(PTFE)一起负载于多孔金属载体，得到疏水催化剂，考查了其对氢-水液相交换反应的催化活性。微波辐射加热法制备的Pt/C和Pt-Ir...
Potentiometric Studies on the Protonation Constants and Solvation of Some a-Amino Acid Benzyl- and t-Butyl- Esters in Ethanol-Water Mixtures
Potentiometry protonation constants solvent effect amino acid esters
2010/4/20
To gain more information about the effect of solvent on a -amino acid benzyl- and t-butyl- esters, the stoichiometric protonation constants of 10 esters (glycine benzyl ester, L-alanine benzyl ester, ...
Plasticiser Effect on Water Vapour Permeability Properties of Locust bean gum--Based Edible Films
Locust bean gum edible film water vapour permeability plasticiser stearopten beeswax
2010/4/21
The barrier properties of edible films prepared from polysaccharide polymer (locust bean gum) and various plasticisers (glycerol, propylene glycol, sorbitol, and polyethylene glycol 200) together with...
Aluminum Fractionation in the Water of Karakaya Dam Lake (Malatya, Turkey)
Aluminum speciation and fractionation atomic absorption spectroscopy enrichment trace element
2010/4/21
A method was developed for the determination of trace amounts of Al species in water samples using the amberlite type XAD-4 resin. For this purpose, total dissolved Al, organically bonded Al and parti...
Determination of H2O2 Content of Various Water Samples Using a Chemiluminescence Technique
H2O2 Chemiluminescence Technique
2010/4/21
Determination of H2O2 Content of Various Water Samples Using a Chemiluminescence Technique.
The Protonation Constants of Some Aliphatic Alkylamines in ethanol-water Mixtures
Aliphatic amines potentiometry protonation constant ethanol-water mixtures
2010/4/22
Protonation constants of methyl-, ethyl-, propyl- and butylamines Were determined potentiometrically using an electrode system calibrated in concentration units of hydrogen ion in ethanol-water mixtur...
Trypsin-Catalyzed Peptide Synthesis in Acetonitrile with Low Water Content
Peptide synthesis trypsin immobilization organic solvent alumina
2010/4/22
Trypsin was immobilized to alumina by adsorption from its aqueous solutions. The activity of trypsin was increased by immobilization for peptide synthesis. With these immobilized enzymes Bz-Arg-Leu-NH...
Determination of the Protonation Constants of Some Substituted Salicylideneanilines by the Spectrophotometric Method in Ethanol-Water Mixtures
Protonation constant titrimetry Schiff's base ethanol-water mixture potentiometric method spectrophotometric method
2010/4/22
Protonation constants of salicylideneaniline and methyl-, ethyl-, methoxy- fluoro-, chloro-, bromo- and iodo- substituted salicylideneanilines were determined by spectrophotomeric titrimetry in 10, 30...
Selenium Speciation in Karakaya Dam Lake's Water (Malatya-Turkey)
Selenium speciation Atomic absorption spectroscopy Enrichment Trace element
2010/4/23
Concentrations of total inorganic selenium, Se(IV), Se(VI) and organically bonded selenium from samples of Karakaya dam lake\\\'s water were determined using ammonium pyrollidine dithio carbamate (APD...
Structural Studies of Water-Soluble b-Brominated Manganese Porphyrins: Stabilities of MnTDCSPPBr 8 and MnTSPPBr 8 as Homogeneous and Supported Reagents Toward Hydrogen Peroxide and Sodium Hypochlorite
Water-Soluble b-Brominated Manganese Porphyrins Stabilities of MnTDCSPPBr 8 MnTSPPBr 8 as Homogeneous Supported Reagents Toward Hydrogen Peroxide Sodium Hypochlorite
2010/6/27
This article describes the structural stabilities of [2,3,7,8,12,13,17,18-octabromo-5,10,15,20-tetrakis(2,6-dichloro-3-sulfonatophenyl)porphinato]manganese(III) X (where X = H2O and/or OH- , depending...
Spectrophotometric Determination of Uranium in Waste Water of Phosphoric Acid and Fertilizer Manufacturing Process
Phosphate rocks fertilizers uranium waste water TOPO
2010/6/29
In this study, waste water drains and produced phosphate fertilizers of conventional wet-process (hemihydrate) phosphoric acid and phosphate fertilizer plants were investigated to determine the averag...
Chlorination of Two Turkish Lignites in Water and Water-Carbon tetrachloride Media
Chlorination Two Turkish Lignites Water Water-Carbon tetrachloride Media
2010/6/28
The chlorine uptake of two Turkish lignites during chlorinolysis with chlorine gas in water and water-carbon tetrachloride media at ambient pressure (\cong 610 mmHg) was examined. The effects of speed...
Transition Metal Compound Mediated Reduction of a-Amino Acids to 1,2-Amino Alcohols with NaBH4 in Water
Transition Metal Compound Mediated Reduction a-Amino Acids to 1,2-Amino Alcohols NaBH4 Water
2010/6/28
A new efficient and cost-effective method for the preparation of 1,2-amino alcohols is described. The reactions of amino acids with NaBH4 in the presence of NiCl2 or MoO3 in water give 1,2-amino alcoh...
Thermal Behaviour of Some Azo Dyes Containing Sterically Hindered and Water-Soluble Groups
Thermal Behaviour Some Azo Dyes Containing Sterically Hindered Water-Soluble Groups
2010/6/30
Thermal behaviour of six azo dyes containing steric hindered groups such as tert-butyl, sec-butyl and isopropyl, were investigated by means of thermogravimetry (TG), differential thermal analysis (DTA...
Removal of Water-Soluble Cationic Dyes with TriSyl Silicas
TriSyl silicas cationic dyes binding, adsorption
2010/6/30
In this study, the adsorption of certain water-soluble cationic dyes, (basic blue 9, basic blue 12, basic blue 17, brilliant cresyl blue, janus green B, basic green 4, basic violet 1, basic violet 3, ...