Formation and characterization of infrared absorbing copper oxide surfaces
Source abstract
Abstract
Abstract Copper oxide formation has been investigated to combine the advantages of producing different size and shapes of coatings that possess good light absorbing properties. An aqueous blackening solution was investigated and optimum composition was found as 2.5 M NaOH and 0.225 M NaClO to form velvet copper oxide films. A two-step oxidation mechanism was proposed for the blackening process by carefully examining the experimental results. Formation of Cu 2 O was observed until the entire copper surface was covered at first. In the second step, Cu 2 O surface was further oxidized to CuO until the whole Cu 2 O surface was covered by CuO. Therefore, blackened copper surfaces consisted of Cu 2 O/CuO duplex oxides. Characterization of the coatings were performed in terms of microstructure, phase analysis, chemical state, infrared specular and total reflectivity by SEM, XRD, XPS, FTIR and UV–vis spectrophotometry, respectively.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Copper-based nanomaterials and applications · ZnO doping and properties · Electronic and Structural Properties of Oxides
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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