دورية أكاديمية
Al2O3-coated 3-N-propylpyridinium chloride silsesquioxane polymer film: preparation and electrochemical property study of adsorbed cobalt tetrasulfophthalocyanine.
| العنوان: | Al2O3-coated 3-N-propylpyridinium chloride silsesquioxane polymer film: preparation and electrochemical property study of adsorbed cobalt tetrasulfophthalocyanine. |
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| المؤلفون: | Lucho AM; Instituto de Química, Unicamp, C.P. 6154, 13084-971 Campinas, Saõ Paulo, Brazil., Pissetti FL, Gushikem Y |
| المصدر: | Journal of colloid and interface science [J Colloid Interface Sci] 2004 Jul 01; Vol. 275 (1), pp. 251-6. |
| نوع المنشور: | Journal Article |
| اللغة: | English |
| بيانات الدورية: | Publisher: Academic Press Country of Publication: United States NLM ID: 0043125 Publication Model: Print Cited Medium: Print ISSN: 0021-9797 (Print) Linking ISSN: 00219797 NLM ISO Abbreviation: J Colloid Interface Sci Subsets: PubMed not MEDLINE |
| أسماء مطبوعة: | Publication: Orlando, FL : Academic Press Original Publication: New York. |
| مستخلص: | Porous Al2O3 presenting a specific surface area of SBET = 105 m2 g(-1) was coated with 3-N-propylpyridinium chloride silsesquioxane polymer. The ion exchange capacity of this polymer grafted onto an Al2O3 surface, resulting in a material designated as AlSiPy(+)Cl-, was 1.09 mmol g(-1). Furthermore, a cobalt(II) tetrasulfophthalocyanine anionic complex was immobilized on the chemically modified surface by an ion exchange reaction with a yield of 40 micromol g(-1) (the surface density of the electroactive species is 3.80 x 10(-11) mol cm(-2)). The electrochemical properties of the material obtained, AlSiPy/CoTsPc, were tested for the catalytic oxidation of oxalic acid at 0.77 V vs SCE in 1.0 mol l(-1) KCl solution. Furthermore, a chronoamperometric technique was used with the electrode to test its potential use as a sensor for oxalic acid. The electrode response to oxalic acid concentrations between 1.0 and 3.5 mmol l(-1) was linear with an estimated detection limit of 0.5 mmol l(-1). The charge transfer resistance of the material, measured using the electrochemical impedance spectroscopy technique, was 43 Omega cm2. |
| تواريخ الأحداث: | Date Created: 20040526 Date Completed: 20050324 Latest Revision: 20091111 |
| رمز التحديث: | 20221213 |
| DOI: | 10.1016/j.jcis.2004.02.016 |
| PMID: | 15158406 |
| قاعدة البيانات: | MEDLINE |
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