Composition, Structure, and Corrosion–Electrochemical Properties of Chromium Coatings Deposited from Chromium(III) Electrolytes Containing Formic Acid and Its Derivatives
作者： L. N. Vykhodtseva , A. A. Edigaryan , E. N. Lubnin , Yu. M. Polukarov , V. A. Safonov
DOI: 10.1023/B:RUEL.0000023928.39077.6F
关键词:
摘要: To study electrocatalytic properties of chromium, its deposits are obtained from Cr(III) electrolytes containing formic acid and four derivatives (formaldehyde, methyl alcohol, formamide, dimethylformamide) comprehensively examined. Amorphous structure the is established with an x-ray diffraction analysis. The valence state chromium major extrinsic elements studied by photoelectron spectroscopy. carbon reduction degree organization particles in deep layers (chainlike or graphite-like structures) shown to depend on nature organic compounds added into chromium-plating electrolyte. corrosion–electrochemical behavior 0.5 M H2SO4 compared that polycrystalline plated sulfate–oxalate electrolytes.
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