Stack air-breathing membraneless glucose microfluidic biofuel cell
[摘要] A novel stacked microfluidic fuel cell design comprising re-utilization of the anodic and cathodic solutions on the secondary cell is presented. This membraneless microfluidic fuel cell employs porous flow-through electrodes in a "V"-shape cell architecture. Enzymatic bioanodic arrays based on glucose oxidase were prepared by immobilizing the enzyme onto Toray carbon paper electrodes using tetrabutylammonium bromide, Nafion and glutaraldehyde. These electrodes were characterized through the scanning electrochemical microscope technique, evidencing a good electrochemical response due to the electronic transference observed with the presence of glucose over the entire of the electrode. Moreover, the evaluation of this microfluidic fuel cell with an air-breathing system in a double-cell mode showed a performance of 0.8951 mWcm-2in a series connection (2.2822mAcm-2, 1.3607V), and 0.8427 mWcm-2in a parallel connection (3.5786mAcm-2, 0.8164V).
[发布日期] [发布机构] Centro de Investigatión y Desarrollo Tecnológico en Electroquímica, Pedro Escobedo, Qro., C.P. 76703, Mexico^1;Facultad de Ingenieria, División de Investigatión y Posgrado, Universidad Autónoma de Querétaro, Querétaro, Qro.; C.P. 76010, Mexico^2;Centro de Investigatión y Desarrollo Tecnológico en Electroquímica, Unidad Tijuana B.C., Tijuana; C.P. 22444, Mexico^3
[效力级别] 能源学 [学科分类]
[关键词] Cell architectures;Electrochemical response;Microfluidic fuel cell;Parallel connections;Scanning electrochemical microscopes;Secondary cells;Series connections;Tetrabutylammonium bromide [时效性]
