Metal 4-amino-phthalocyanine Polymer Film And The Nature Of The Aniline Copolymer Film | | Posted on:2004-10-22 | Degree:Master | Type:Thesis | | Country:China | Candidate:D M Wu | Full Text:PDF | | GTID:2191360092986769 | Subject:Analytical Chemistry | | Abstract/Summary: | PDF Full Text Request | | Two aspects were studied in the paper: 1. Acidity effect on the characters of electrochemisty, electrocatalyse and UV-vis spectra of polymeric Cobalt Tetraaminophthalocyanine (p-CoTAPc). 2. Preparation and characters of copper tetraaminophthalocyanine film incorporated with aniline. Cyclic voltammetry, UV-vis, IR and photoluminescence spectra, scanning electron micrograph and four-point probe conductivity measurement were used in the researches. The results herein show:(1) The redox potentials of p-CoTAPc are shifted to positive direction with the increasing of acidity, and the pH dependence of the redox potentials is -61 mV / pH slope. The electrocatalytic ability increases with increasing of acidity. The reductive potentials for O2 were found to be pH dependent with a slope of -33.34 mV/pH. The sort bonds of p-CoTAPc film soaked in buffer solution are blue shifted, the blue-shifted extent is related to pH value of solution and is the least in pH 7 buffer solution. The increasing of sort bond intensity is not only related to the soaked time but also to pH value of solution, and the increasing extent is faster in the basic solution than in the acid solution.(2) The polymeric copper tetraaminophthalocyanine incorporated with aniline film (p-CuTAPc-PAN) was prepared using electrogeneration. The polymeric reaction between CuTAPc and aniline occurs as a result of the attack of an electrophile such as the cation radical NH2 groups remaining the p-CuTAPc on the 2-positon of the benzenoid ring. Compared to p-CuTAPc, cyclic voltammetry of p-CuTAPc-PAN appears a new redox peak. Q bond of UV-vis spectra shifts to short wavelengths, the sort bond shifts to long wavelength and the spectral intensity increases. The photoluminescence spectrum is blue shifted with a shoulder peak, and the spectral intensity increases markedly. The conductivity increases weakly. The morphology shows a cauliflower structure, and the size of its microstructure augments clearly under scanning electron micrograph. TheAbstractaniline concentration incorporated affects on the characters of electrochemistry, UV-vis spectra and conductivity. | | Keywords/Search Tags: | electrochemistry, incorporation, electropolymerization, spectra, electrocatalysis, cobalt tetraaminophthalocyanine, copper tetraaminophthalocyanine, aniline, pH, conductivity | PDF Full Text Request | Related items |
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