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    STUDIA CHEMIA - Issue no. 1 / 2004  
         
  Article:   SCANNING ELECTRON MICROSCOPY STUDY OF UNDOPED AND METAL DOPED ANODIC POROUS ALUMINA MEMBRANES.

Authors:  ZOFIA VÉRTESY, ERZSÉBET VERESS, GHEORGHE MIHĂILESCU, STELA PRUNEANU, LÁSZLÓ P. BIRÓ .
 
       
         
  Abstract:  Porous Al2O3 membranes were prepared by low-temperature anodic oxidation in aqueous electrolyte solution of Al foils with and without thermal pretreatment. Some of membranes were doped with Co and Ni by a.c. electrolysis. Scanning electron microscopy of the membranes confirms the existence of strain field regions, thus providing an experimental evidence of the earlier proposed mechanism for the development of the porous structure. The Co doped membranes were found as being very effective substrates for catalytic growth of carbon nanotubes.  
         
     
         
         
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