Synthesis of Pd and Rh metal nanoparticles in the interlayer space of organically modified montmorillonite
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This study reports the synthesis of palladium and rhodium metal nanoparticles supported on montmorillonite (MMT) and partially organically modified MMT (POMM) using tetraamine palladium and hexaamine rhodium complex as precursor for palladium and rhodium respectively. The synthesized nanoparticles were characterized by powder X-ray diffraction PXRD and TEM. The PXRD study shows characteristic crystallographic planes for Pd and Rh metal and confirm the formation of metal nanoparticles in MMT and POMM. The TEM images reveal the effect of organic modification of MMT on decreasing particle size of Pd and Rh metal. The Pd and Rh metal nanoparticles are agglomerated in pristine MMT while nanoparticles are well dispersed in POMM. ICP-AES analysis was carried out to estimate quantitative amount of Pd and Rh metal in MMT and POMM.
KeywordsPalladium Rhodium Nanoparticles Montmorillonite Organoclay Synthesis Dispersion
We thank Dr. P. K. Ghosh, Director, Central Salt & Marine Chemicals Research Institute, Bhavnagar for taking keen interest in this work and also providing the facilities; to CSIR for funding under Network Project: Organic-Inorganic Hybrids and Nanocomposites - COR 0004.
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