Scanning electron microscopy copper oxide

Surface topography of Kapton polyimide as-received, seeded with copper, after the 450°C heat treatment, and after removal of copper oxide by acid etching was examined by scanning electron microscopy. Cross-sectional analysis of Kapton seeded with copper and after 450°C heat treatment was carried out by transmission electron microscopy. 

Scanning electron microscopy (SEM) Pig. 10, revealed an increase in the surface concentration of copper domains following additional cure. An increase in the thickness of the copper oxide layer from approximately 700 A to 1300 k was also noted by transmission electron microscopy. Post-processing was considered by the authors to be analogous to sintering wherein, small particles fuse to become a large solid mass. 

Copper-based catalysts are of considerable importance for industrial reactions, e. g. partial oxidation reactions. This contribution reports on a broad study of the catalytic activity of copper in model redox reactions, e. g. methanol oxidation and oxidative coupling of methane. In addition the interaction of Cu with these reactive gases was investigated by thermoanalytic techniques (TG/DTA, DSC), temperature programmed oxidation and reduction (TPO/tpR) and thermal desorption spectroscopy (TDS). Scanning electron microscopy (SEM) and electron backscattering diffraction (EBSD) was additionally used to characterise the copper catalyst before and after catalytic action. 

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