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Citation: Wang Feng-Bin, Jiang Hui-Jun, Xing Wei, Lu Tian-Hong, Chen Hui-Lan. Electrochemical and Electrocatalytic Properties of Microperoxidase-11 Adsorbed on the Poly-L-Lysine Modified Ag Electrode[J]. Acta Physico-Chimica Sinica, ;2002, 18(05): 404-408. doi: 10.3866/PKU.WHXB20020505 shu

Electrochemical and Electrocatalytic Properties of Microperoxidase-11 Adsorbed on the Poly-L-Lysine Modified Ag Electrode

1.
Changchun Institute of Applied Chemistry,Chinese Academy of Sciences,Changchun　130022;Department of Chemistry and Environment Sciences,Nanjing Normail University,Nanjing　210097;State Key Laboratory of Coordination Chemistry,Nanjing University,Nanjing　210093

Received Date: 18 September 2001
Available Online: 15 May 2002

It is found that Ply adsorbed roughed silver electrode,it is easy to immobilize MP11 with the electrostatic interaction and to prepare the MP11/Ply/Ag modified electrode.The preparation method of the modified electrode is simple.In addition,the modified electrode obtained shows the high and stable electrocatalytic activity for O2 reduction.It is also found that when the sixth coordination of heme in MP11 is replaced with other coordination species with stronger coordination ability,such as imidazole,its formal redox potential shifts to the negative direction and the electrocatalytic activity for O2 reduction is reduced.
- Microperoxidase-11;Poly-L-Lysine;Imidazole;Modified electrode;　Electrocatalysis
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