Comparison of Ir oxide film redox kinetics in sulfuric and p-toluene sulfonic acid solutions
نویسندگان
چکیده
منابع مشابه
p-Toluene-sulfonic acid, cholesterol determination, and explosions.
HAVE BEEN USING the method of Pearson, Stern, and McGavack (1) for the determination of cholesterol for some time. It has proved to be a convenient and accurate procedure and the reaction had always gone smoothly. One day recently, however, the tubes were set up for the determination as usual, using a freshly prepared solution of p-toluenesulfonic acid. Solutions made from the same bottle of so...
متن کاملChemical doping of MoS2 multilayer by p-toluene sulfonic acid
We report the tailoring of the electrical properties of mechanically exfoliated multilayer (ML) molybdenum disulfide (MoS2) by chemical doping. Electrical charge transport and Raman spectroscopy measurements revealed that the p-toluene sulfonic acid (PTSA) imposes n-doping in ML MoS2. The shift of threshold voltage for ML MoS2 transistor was analyzed as a function of reaction time. The threshol...
متن کاملKinetics of Sphalerite Leaching by Sodium Nitrate in Sulfuric Acid
In the present work, the extraction of zinc from a sphalerite concentrate using sodium nitrate as an oxidant in a sulfuric acid solution was investigated. The effective parameters such as the temperature, sulfuric acid and sodium nitrite concentrations, stirring speed, particle size, and solid/liquid (S/L) ratio were analyzed. The dissolution rate increased with increase in the sulfuric acid an...
متن کاملDetermination of cholesterol with special reference to the use of p-toluene-sulfonic acid.
NTIL RECENT TIMES the methods for the determination of serum sterol have been difficult and time-consuming. As a result, the rmance of this analysis in hospital laboratories has often pred serious problems. It has been our aim to select a relatively and simple method, yet one with a practical degree of accuracy. reliminary investigation of a number of procedures for the detertion of cholesterol...
متن کاملDISSOLUTION KINETICS OF MANGANESE DIOXIDE ORE IN SULFURIC ACID IN THE PRESENCE OF FERROUS ION
Abstract: In this paper, kinetics of reductive leaching of manganese dioxide ore by ferrous ion in sulfuric acid media has been examined. Experimental results show that increasing temperature from 20 to 60 °C and decreasing ore particle size from −16+20 to −60+100 mesh considerably enhance both the dissolution rate and efficiency. Molar ratios of Fe2+/MnO2 and H2SO4/MnO2 in excess to the st...
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ژورنال
عنوان ژورنال: Electrochimica Acta
سال: 2001
ISSN: 0013-4686
DOI: 10.1016/s0013-4686(00)00663-0