Time Resolved Study on Fabrication of Porous Alumina for Further Use to Generate Metallic Nano Catalyst
Present work focuses on study of anodization as function of time, to see the trend in pore size, pore density and degree of ordering of Anodized Aluminum oxide (PAA) membrane. Proper selection of anodization time and phases allow the tuning of self-ordering regime, control of local catastrophic phenomena and achievement of a more uniform growth. Afterward, self-assembled template has been used for the synthesis of novel ID nanostructure of tungsten trioxide by electroless deposition method. Scanning Electron Microscope (SEM) images depict uniform arrangment of tungsten trioxide nanowire. Internal diameter of formed nanowires is around 50 nm similar to porous diameter of PAA templates. Furthermore XRD patterns of nanowire indicate the presence of two crystalline forms of WO3 i.e. monoclinic and orthorhombic.
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