Abstract
In-situ reduction of PdCl2 by Emeraldine base (EB) of polyaniline leads to formation of palladium nano-particles in N-methyl-2-pyrrolidone (NMP) and N',N-dimethylformamide (DMF). So-generated nanoparticles of Pd in polyaniline (PAni), in its UV-visible absorption spectra, showed λ(max) at about 320 nm and 420 nm due to polyaniline along with complete suppression of band at 620 nm initially present in Emeraldine base (EB). X-ray diffraction pattern (XRD) of powder showed broad peaks for nano-sized Pd, and the particle size from Scherrer's equation was found to be less than 15 nm. Scanning electron microscopy (SEM) showed that the composite has granular and/ or fluffy agglomerated morphology. The elemental composition was studied by EDAX.
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