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Study on Synthesis and Properties of C60 Based Composites

Author: ShenWeiLi
Tutor: ZhaoGuangChao
School: Anhui Normal University
Course: Inorganic Chemistry
Keywords: C60 derivatives polyvinylpyrrolidone malonic acid L-Cysteine
CLC: O613.71
Type: Master's thesis
Year: 2006
Downloads: 39
Quote: 0
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Abstract


The studies on the synthesis and properties of fullerene derivatives had been an active topic in the fullerene chemistry. So Synthesizing water-soluble fullerene and shaping hybrid materials with nanoparticles, searching reaction rules, studying their physical、chemical and photoelectronic properties are very important for exploring fullerene-based new materials. The thesis is focused on the synthesis and characterization of water-soluble fullerenes and their assemblies with semiconductor nanoparticles.1. The binding of CdS semiconductor nanoparticles and the soluble complex C60 with polyvinylpyrrolidone was investigated by transmission electron microscopy（TEM）、Infrared （IR） spectroscopy、Ultra-violet Visible （UV-Vis） absorption spectroscopy、photoluminescence （PL） techniques. The results showed that CdS band-band emission was extremely quenched by C60 and the photocharge transfer from CdS to C60 was observed.2. Water-soluble malonic acid C60 mono-adduct was synthesized by Bingel reaction. The self-assembly of CdS nanoparticles with C60 derivatives by electrostatic interactions was obtained and characterized by 1HNMR、TEM、IR、Uv-Vis、PL spectroscopy. The results showed that CdS nanoparticles can be linked to C60 derivatives by a means of electrostatic interactions. The band-band exciton emission of CdS nanoparticles in the C60/CdS composites was increased after Eu3+ was added, which is meaningful for the research of electrostatic interactions between organic and inorganic compounds.3. L-Cysteine C60 adduct was synthesized by nucleophilic addition reaction which were characterized by 1HNMR、TEM、IR、UV-Vis、PL spectroscopy. Fluorescence spectra were changed when C60 derivatives reacted with several of ions. L-Cysteine C60 adduct also can form composites with CdS by coordinate bonds. Based on these a method for the determination of ions was developed, which had important values for the applications of fullerenes.

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CLC: > Mathematical sciences and chemical > Chemistry > Inorganic Chemistry > Non-metallic elements and their compounds > Part Ⅳ family of non-metallic elements (carbon and silicon ) and its compounds > Carbon C
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