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The Preparation and Electrocatalytic Application of Metal Hexaycnaoefrrate Modified Electrodes

Author: LiXiaoJuan
Tutor: HeChunXiang
School: Liaoning Normal University
Course: Organic Chemistry
Keywords: Chemically modified electrode Metallic iron cyanide Electrochemical sensors Electrochemical catalytic
CLC: O646.5
Type: Master's thesis
Year: 2009
Downloads: 95
Quote: 1
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Abstract


Metal iron cyanide modified electrode has the advantages of simple preparation method, chemical stability, and good electrocatalytic properties, electrochromic effect, low prices, and thus become the research focus of the electric field of analytical chemistry. This thesis aims to further broaden the application of such compounds in the field of electro-catalytic, electrochemical biosensor. New development of this thesis, iron cyanide neodymium / silver (NdHCF / Ag) composite modified electrode was prepared by electrochemical deposition the iron cyanide nickel / silver (NiHCF / Ag) composite modified electrode and cobalt hexacyanoferrate (CoHCF ) modified electrode, three modified electrode and method for manufacturing principle, its structure, chemical composition, and electrochemical properties were characterized, and three modified electrode several life substances, drugs and organic electrochemical The catalytic properties. This thesis is mainly in the following three aspects: 1. Containing Ag , Nd 3 , K 3 Fe (CN) 6 colloidal mixed solution, prepared by electrochemical deposition method iron cyanide neodymium / silver composite inorganic film modified electrode (NdHCF / Ag / SG), and electrocatalytic properties. The results show that the modified electrode has good chemical and electrochemical stability, and homocysteine, reduced glutathione and the nitrophenol electrode reaction has good electric catalysis. Containing the Ag 6 mixed colloidal solution Ni 2 , K , 3 Fe (CN) prepared by electrochemical deposition of nickel hexacyanoferrate / silver the compound modified electrode (NiHCF / Ag / SG), and study the electrocatalytic properties of the electrode. The results show that: NiHCF / Ag / SG modified electrodes have a catalytic effect on the electrode reaction of fluconazole and ephedrine hydrochloride. When the concentration of fluconazole in of 8.00 x -7 ~~ of 5.00 × -5 mol / L range, the peak current and concentration reduction peak was a good line sexual relationship (r = 0.986), and the detection limit for of 2.50 × -8 mol / L When the concentration of ephedrine hydrochloride in 8.00 x 10 -6 ~ of 1.30 × -3 mol / L range, the peak current and concentration reduction peak was a good line sexual relationship (r = 0.982), and the detection limit for of 5.00 × -7 mol / L The electrode has been successfully used for the injection of fluconazole and Determination of ephedrine hydrochloride, recoveries were 96.5 to 109%, 95.4 to 104%. 3 electrochemical deposition prepared cobalt hexacyanoferrate film modified electrode (CoHCF / SG), to study the electrocatalytic properties of the modified electrode by cyclic voltammetry. The results show that: the pair of electrodes, guanine, hypoxanthine, xanthine, adenine electrochemical oxidation with a catalyst.

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CLC: > Mathematical sciences and chemical > Chemistry > Physical Chemistry ( theoretical chemistry ),chemical physics > Electrochemical,electrolytic,magnetic,chemical > Electrolysis and Electrode role
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