Laccase/AuAg Hybrid Glucose Microfludic Fuel Cell

13th International Conference on Micro and Nanotechnology for Power Generation and Energy Conversion Applications

物理学;能源学

López-González, B.^1 ; Cuevas-Muñiz, F.M.^2 ; Guerra-Balcázar, M.^3 ; Déctor, A.^2 ; Arjona, N.^2 ; Ledesma-García, J.^3 ; Arriaga, L.G.^2

División de Investigación y Posgrado, Facultad de Química, Universidad Autónoma de Querétaro, Mexico^1

Ctro. de Invest. y Desarrollo Tecnologico en Electroquimica Parque Tecnologico Queretaro Sanfandila, Pedro-Escobedo 76703, Querétaro, Mexico^2

División de Investigación y Posgrado, Facultad de Ingeniería, Universidad Autónoma de Querétaro, Cerro de las campanas s/n, 76010 Santiago-de Querétaro, Mexico^3

关键词: Cathodic compartments;    Electrocatalytic materials;    Electrochemical evaluations;    Glucose electrooxidation;    Maximum power density;    Microfluidic fuel cell;    Polarization curves;    Saturated solutions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/476/1/012044/pdf
DOI  :  10.1088/1742-6596/476/1/012044

来源: IOP

【 摘 要 】

In this work a hybrid microfluidic fuel cell was fabricated and evaluated with a AuAg/C bimetallic material for the anode and an enzymatic cathode. The cathodic catalyst was prepared adsorbing laccase and ABTS on Vulcan carbon (Lac-ABTS/C). This material was characterized by FTIR-ATR, the results shows the presence of absorption bands corresponding to the amide bounds. The electrochemical evaluation for the materials consisted in cyclic voltammetry (CV). The glucose electrooxidation reaction in AuAg/C occurs around - 0.3 V vs. NHE. Both electrocatalytic materials were placed in a microfluidic fuel cell. The fuel cell was fed with PBS pH 5 oxygen saturated solution in the cathodic compartment and 5 mM glucose + 0.3 M KOH in the anodic side. Several polarization curves were performed and the maximum power density obtained was 0.3 mWcm-2.