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Citation: Zhang Yu-Zhong, Zhao Hong, Yuan Zhuo-Bin. Electrochemical Characteristics and Catalytic Properties of Poly (ferulic acid) Glassy Carbon Modified Electrode[J]. Acta Physico-Chimica Sinica, ;2002, 18(09): 841-845. doi: 10.3866/PKU.WHXB20020916 shu

Electrochemical Characteristics and Catalytic Properties of Poly (ferulic acid) Glassy Carbon Modified Electrode

1.
Department of Chemistry, Graduate School, University of Science and Technology of China, Beijing　100039

Received Date: 24 December 2001
Available Online: 15 September 2002

The method and conditions of preparing ferulic acid film at glassy carbon electrode by electropolymerization have been studied. The electrochemical characteristics and charge transmission process in films have been explored initially with cyclic voltammetry, staircase voltammetry and A.C. impedance. The apparent electron transfer coefficient and standard rate constant (ks) was o.49 and 6.56 s－1 for poly (ferulic acid) film (L=0.5 μm) respectively. The diffusion coefficients within the film is 7.9×108 cm2•s－1 for oxide and is 4.8 ×108 cm2•s－1 for reductive poly(ferulic acid).The ferulic acid modified electrode shows electrocatalytic activity for oxidation of NADH in 0.1 mol•dm－3 phosphate buffer solution. The peak currents were proportional to the concentrations of NADH in the range of 0.01～5.0 mmol•dm－3.
- Nicotinamide adenine dinucleotide (NADH);Ferulic acid;Chemical modified electrode (CME);Glassy carbon electrode;　Electropolymerization;Electrocatalytic
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