Assessment of Glucose Oxidase Based Enzymatic Fuel Cells Integrated With Newly Developed Chitosan Membranes by Electrochemical Impedance Spectroscopy

Tahsin Bahar*, M. Suha Yazici

*Bu çalışma için yazışmadan sorumlu yazar

Araştırma sonucu: ???type-name???Makalebilirkişi

5 Atıf (Scopus)

Özet

Considerably stable enzymatic fuel-cells (single cell and 5-cells stack) were prepared by using chitosan based membranes along with glucose oxidase attached bioanode. Continuous operation of fuel-cells were monitored under short circuit conditions reaching half-life over a week. Detailed analysis for the effects of pH, temperature, buffer types and concentration on different type of in-house produced chitosan membranes were performed by electrochemical impedance spectroscopy (EIS). EIS was utilized to observe, total electrolyte resistance, charge transfer properties, mass transfer and double layer effects on integrated fuel cells (single cell and 5-cells stack). Performance of the fuel cells was also analyzed by the polarization experiments. Current density of the fuel cell increased at higher operation temperatures not only due to better enzyme kinetics, but also due to increase in electrolyte (membrane+buffer solution) conductivity. Buffer concentration in the fuel (glucose) solution was found as an important parameter. Under optimum fuel cell operation conditions (i. e. 30–40 °C, pH 5 0.3 M buffer solution), maximum current densities of 3.0–3.2 mA cm−2 were reached. Low-power devices (i. e. a calculator, step motor) were powered with 5-cell stack producing 3 mW at 1.3 V.

Orijinal dilİngilizce
Sayfa (başlangıç-bitiş)1304-1314
Sayfa sayısı11
DergiElectroanalysis
Hacim32
Basın numarası6
DOI'lar
Yayın durumuYayınlandı - 1 Haz 2020
Harici olarak yayınlandıEvet

Bibliyografik not

Publisher Copyright:
© 2020 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim

Finansman

We thankfully acknowledge “The Scientific and Technological Research Council of Turkey (TUBITAK)” for financial support provided under TUBITAK 1003 Program (Project Code: 213 M031).

FinansörlerFinansör numarası
TUBITAK
TUBITAK 1003 Program213 M031
Türkiye Bilimsel ve Teknolojik Araştırma Kurumu

    Parmak izi

    Assessment of Glucose Oxidase Based Enzymatic Fuel Cells Integrated With Newly Developed Chitosan Membranes by Electrochemical Impedance Spectroscopy' araştırma başlıklarına git. Birlikte benzersiz bir parmak izi oluştururlar.

    Alıntı Yap