Претраживање
Приказ резултата 21-30 од 73
Underpotential deposition of lead onto Pt(100) in acid solutions: Adsorption isotherms and interface structures
(Royal Soc Chemistry, Cambridge, 1998)
The underpotential deposition (UPD) of Pb onto Pt(100) in pure perchloric acid and in solution containing Br- was examined by classical rotating ring disk electrode (RRDPt(100)E) electrochemical methods in combination with ...
Oxygen reduction on a duplex stainless steel
(Pergamon-Elsevier Science Ltd, Oxford, 1998)
O-2 reduction on duplex stainless steel was investigated in neutral and alkaline solutions with and without the presence of chloride ions. All polarization curves showed hysteresis with higher reaction rate in positive ...
Electrooxidation of H-2, CO, and H-2/CO mixtures on a well-characterized Pt70Mo30 bulk alloy electrode
(Amer Chemical Soc, Washington, 1998)
The electrochemical oxidation of hydrogen (H-2), carbon monoxide (CO), and their mixtures (500 ppm-2%) on a well-characterized Pt70Mo30 bulk alloy was examined using the rotating disk electrode technique in 0.5 M H2SO4 at ...
Some applications of optical fibres in medicine and disturbances in biomedical area
(5th Congress on Modern Optics, OPTIKA 1998, 1998)
The development of medical equipment, telecommunications and computer's technology provides new possibilities for diagnostic purposes. Usually, it is necessary to use optical image or noise transmission. The application ...
Electrodeposition of silver from nitrate solution: Part II. Mechanism of the effect of phosphate ions
(Springer, Dordrecht, 1998)
The mechanism of compact Ag-film formation by electrolysis from nitrate solution with addition of small amounts of phosphate ions is elucidated. It is shown that the phosphate ions exert their effect by lowering the exchange ...
UPD of Cu on Pt(100): effects of anions on adsorption isotherms and interface structures
(Pergamon-Elsevier Science Ltd, Oxford, 1998)
The results presented in this study show definitely that copper deposition in perchloric acid is a very slow, kinetically controlled process. In nearly halide free supporting electrolytes du appeared to be deposited at ...
Hydrogen evolution at Zn-Ni alloys
(Pergamon-Elsevier Science Ltd, Oxford, 1998)
Zn-Ni alloys were electrodeposited from a berate-citrate and TEPA bath in potentiostatic and galvanostatic regimes. Potential of electrodeposition or current density were varied and chemical composition and phase structure ...
The influence of polypyrrole films on the corrosion behavior of iron in acid sulfate solutions
(Elsevier Science Sa, Lausanne, 1998)
The corrosion behavior of mild steel covered by electrodeposited polypyrrole films was investigated by electrochemical impedance spectroscopy. Electrodeposition of polypyrrole was performed from an aqueous solution of ...
On the serrated yielding in AlMg6.5 alloy sheet
(Serbian Chemical Society, Belgrade, 1998)
Room temperature tensile tests were performed on AlMg6.5 alloy sheet, with Initial strain rates of 6.7x10(4) s(1), 6.7x10(-3) s(-1) and 6.7x10(-2) s(-1), after imposing 70% cold rolling reductions, and annealing at 320 ...
Corrosion behaviour of epoxy coatings investigated by EIS
(Trans Tech Publications Ltd, Durnten-Zurich, 1998)
Epoxy coatings were formed by cathodic electrodeposition of an epoxy resin on steel and on electrochemically modified steel surface by Fe-P alloy using constant voltage method (resin concentration 10 wt.%, temperature 26 ...