Infrared Spectra Investigation of CuO-Al2O3 Precursors Produced by Electrochemical Oxidation of Copper and Aluminum Using Alternating Current

Joint electrochemical oxidation of copper and aluminum using alternating current (AC) was performed. The electrolysis products were dried on air (method carbonate) and at the residual pressure of 3-5 kPa (oxide method). Cu-Al layered double hydroxide (Cu-Al/LDH) are formed at air carbonization. Oxid...

Full description

Saved in:
Bibliographic Details
Published in:Key engineering materials 2016-09, Vol.712, p.65-70
Main Authors: Korobochkin, Valery, Ustyugov, Alexander M., Usoltseva, Natalya, Dolinina, Alesya S.
Format: Article
Language:English
Subjects:
Aluminum
Chloride
Copper
Equilibrium
Heat treating
Metal oxides
Oxidation
Sodium
Spectrum analysis
Temperature
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Joint electrochemical oxidation of copper and aluminum using alternating current (AC) was performed. The electrolysis products were dried on air (method carbonate) and at the residual pressure of 3-5 kPa (oxide method). Cu-Al layered double hydroxide (Cu-Al/LDH) are formed at air carbonization. Oxide method saves copper (I) oxide. Heat treatment causes the decomposition of LDH to CuO and Al2O3 as well as Cu2O oxidation to CuO. Copper-aluminum spinel (CuAl2O4) is the product of solid-phase interaction of copper and aluminum oxides. Infrared spectra revealed that oxide method provides the boehmite dehydration and metal oxides interaction at lower temperature despite the fact that the poorly crystallized copper (II) oxide is formed at LDH decomposition.
ISSN:1013-9826
1662-9795
1662-9795
DOI:10.4028/www.scientific.net/KEM.712.65