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QIN Yu-hua, WANG Sheng-tian, XU Hong-ding
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Abstract: Cyt c/Au/AAO/PySSPy electrodes were made by immobilizing Cyt c on PySSPy modified gold electrodes covered with AAO templates. The cyclic voltammgram of Cyt c/Au/AAO/PySSPy films shows a pair of well-defined and nearly reversible peaks at about 0.059 V(vs. Ag/AgCl) in pH 6.8 PBS buffers, being the chara cteristic peaks of the Cyt c heme Fe(Ⅲ)/Fe(Ⅱ)redox couples. In the microenvironm ent of the AAO/PySSPy film, the electron transfer between Cyt c and the electrode was greatly enhanced. The soret absorption band positions suggest that Cyt c retained its native conformation in AAO templates. The hydrogen peroxide was cat alytically reduced at Cyt c/Au/AAO/PySSPy electrodes.
Key words: nano-alumina, cytochrome c, direct electrochemistry, electrochemical catalysis
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QIN Yu-hua, WANG Sheng-tian, XU Hong-ding. Electrocatalysis of cytochrome c promoted by the nano-alumina templates[J].J4, 2004, 42(01): 113-115.
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http://xuebao.jlu.edu.cn/lxb/EN/Y2004/V42/I01/113
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