2 resultados para Quantum efficiency

em Deakin Research Online - Australia


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The data covers the following:
X-ray photoelectron spectroscopy (XPS) - to collect surface chemical structure changes (using RMIT instrument);
Scanning electron microscopy (SEM) - to collect surface physical structure changes;
Atomic force microscopy (AFM) - to collect surface morphology changes;
Internal/External quantum efficiency (IQE/EQE) – to collect DSSC (Dye Sensitised Solar Cells) efficiency data;
Discharge/Charge capacity - to collect battery efficiency data.

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 In this study, the inhibitive performance of two pyridine derivatives as corrosion inhibitors for mild steel was examined under stagnant condition and hydrodynamic flow in HCl solution at 25. °C. Potentiodynamic polarization and electrochemical impedance spectroscopy (EIS) techniques were employed. To explore the inhibitors adsorption mechanism, Langmuir isotherm and quantum chemical studies were used. The results of electrochemical measurements show that the inhibitor concentration has a positive effect on its efficiency while for hydrodynamic condition, it is vice versa. Corrosion attack morphologies were observed at stagnant and hydrodynamic conditions to verify qualitatively the results obtained by electrochemical methods. © 2013 Elsevier Ltd.