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Efficient glucose oxidation on polyaniline film by Escherichia coli with neutral red mediator
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نویسنده
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shah a.-u.-h.a. ,firdous i. ,khattak z. ,arif m. ,fahim m. ,bilal s.
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منبع
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journal of the chemical society of pakistan - 2017 - دوره : 39 - شماره : 5 - صفحه:820 -826
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چکیده
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Electrode modification was done by electrodeposition of polyaniline (pani) on gold substrate for application as anode inoculated with escherichia coli (e. coli) and neutral red (nr) as electron transfer mediator in glucose oxidation for microbial fuel cell. electrochemical impedance spectroscopy (eis) and cyclic voltammetry (cv) was employed to evaluate the heterogeneous electron transfer,electrode/electrolyte interfacial phenomena,current density and charge storage behaviour of different anolyte. both cv and eis measurements show better performance of the inoculated pani coated electrode in the presence of nr. the heterogeneous charge transfer resistance was decreased by 67% (from 33.09 to 10.91 ω.) while the current density was increased by 76% (from 8.227 to 14.5 macm-2) at 50 mvs-1 scan rate showing good physiochemical contact between biocatalyst and pani modified electrode. the encouraging results show high potential of anode for glucose oxidation.
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کلیدواژه
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CV; EIS; Escherichia coli; Luria bertania glucose; Neutral red; Polyaniline
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آدرس
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institute of chemical sciences,university of peshawar,peshawar, Pakistan, national center of excellence in physical chemistry,university of peshawar,peshawar, Pakistan, national center of excellence in physical chemistry,university of peshawar,peshawar, Pakistan, national center of excellence in physical chemistry,university of peshawar,peshawar, Pakistan, national center of excellence in physical chemistry,university of peshawar,peshawar, Pakistan, national center of excellence in physical chemistry,university of peshawar,peshawar, Pakistan
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Authors
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