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Novel Polymeric Resin Route for the Surface Modification of Nanocrystalline LiCoO2 Particles with Al2O3

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Novel polymeric resin route was explored for the surface modification of nanocrystalline LiCoO2 particles with Al2O3 using polyacrylic acid (PAA) and ethyleneglycol (EG) based polymeric resin as chelating as well as coupling agent. Strong attraction between PAA species in the polymeric resin and LiCoO2 particle's surface is effectively used for an efficient uniform coating of Al2O3 layer over the LiCoO2 particles. Thermal behavior of the polymeric resin coated over LiCoO2 particle was investigated by differential scanning colorimeter (DSC). The structural coordination, phase and microstructure of the bare, polymeric resin coated and Al2O3 coated LiCoO2 particles were investigated by Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and X-ray diffraction analysis (XRD). Transmission electron microscopy analysis showed that the coating thickness of Al2O3 is 2 nm.
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Keywords: LITHIUM COBALT OXIDE; NANOMATERIALS; SURFACE MODIFICATION; TRANSMISSION ELECTRON MICROSCOPY; X-RAY DIFFRACTION

Document Type: Short Communication

Publication date: April 1, 2011

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  • Nanoscience and Nanotechnology Letters (NNL) is a multidisciplinary peer-reviewed journal consolidating nanoscale research activities in all disciplines of science, engineering and medicine into a single and unique reference source. NNL provides the means for scientists, engineers, medical experts and technocrats to publish original short research articles as communications/letters of important new scientific and technological findings, encompassing the fundamental and applied research in all disciplines of the physical sciences, engineering and medicine.
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