Enzyme-Based Microfluidic Biofuel Cell to Generate Micropower

Zebda, Abdelkader; Innocent, Christophe; Renaud, Louis; Cretin, Marc; Pichot, F.; Ferrigno, Rosaria; Tingry, Sophie

doi:10.5772/17190

Cited by 13 publications

(18 citation statements)

References 46 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This has made this fabrication style particularly favoured by research groups investigating biofuels such as glucose for potential biological or point of care medical applications [82], [83], [85], [111], [113], [116], [119], [120]. In general, this single-layer device platform has spawned many derivative studies [48], [50], [55], [76], [77], [80]- [83], [85], [113], [119]- [123] due to its simplicity of construction and the possibility for direct visualization of the co-laminar interface quality and reactant conversion through the clear PDMS channel substrate. This unique feature has recently been utilized to visually track and quantify the effect of herringbone mixers on crossover of reactants via micro particle image velocimetry [110].…”

Section: Research Perspectivesmentioning

confidence: 99%

“…In general, experimental efforts to improve the performance of individual colaminar flow cells waned during this period, with researchers instead using the CLFC platform to focus on tangential goals such as fuel flexibility [75], the effect of gas bubbles [76], [77], and catalyst studies [78]- [81]. Other notable explorations that were made during this time include the investigations into microbial and enzymatic biofuel conversion by Li et al [82] and Zebda et al [83]- [85] respectively. Although these early biofuel studies generated only very low power output, they demonstrated that the original 'on-chip' co-laminar flow cell platform may be suitable as a biosensor.…”

mentioning

confidence: 99%

See 1 more Smart Citation

Co-laminar flow cells for electrochemical energy conversion

Goulet

Kjeang

2014

Journal of Power Sources

104

View full text Add to dashboard Cite

A recently developed class of electrochemical cell based on co-laminar flow of reactants through porous electrodes is investigated. New architectures are designed and assessed for fuel recirculation and rechargeable battery operation.Extensive characterization of cells is performed to determine most sources of voltage loss during operation. To this end, a specialized flow cell technique is developed to mitigate mass transport limitations and measure kinetic rates of reaction on flow-through porous electrodes. This technique is used in in conjunction with cyclic voltammetry and electrochemical impedance spectroscopy to evaluate different treatments for enhancing the rates of vanadium redox reactions on carbon paper electrodes. It is determined that surface area enhancements are the most effective way for increasing redox reaction rates and thus a novel in situ flowing deposition method is conceived to achieve this objective at minimal cost. It is demonstrated that flowing deposition of carbon nanotubes can increase the electrochemical surface area of carbon paper by over an order of magnitude. It is also demonstrated that flowing deposition can be achieved dynamically during cell operation, leading to considerably improved kinetics and mass transport properties. To take full advantage of this deposition method, the total ohmic resistance of the cell is considerably reduced through design optimization with reduced channel width, integration of current collectors and reduction of reactant concentration. With electrodes enhanced by dynamic flowing deposition the cell presented in this study demonstrates nearly a fourfold improvement in power density over the baseline design.Producing more than twice the power density of the leading co-laminar flow cell without the use of catalysts or elevated temperatures and pressures, this cell provides a lowcost standard for further research into system scale-up and implementation of co-laminar flow cell technology. More generally, the experimental technique and deposition method developed in this work are expected to find broader use in other fields of electrochemical energy conversion. am also very grateful to my graduate colleagues at SFU and friends in FCRel, with a special mention to Omar in particular, for all the pleasant conversations and good times.I wish there had been more.Last but not least, I'd like to acknowledge all the family and friends I was unable to spend quality time with due to this work. I look forward to seeing you all again.vi Tables Table 1. for their higher specific energy and energy density [6]. For the same reasons, the lower power (< 100 W) market which is driven by portable consumer electronics, is currently 2 dominated by closed cell lithium ion batteries in particular [7]. As these batteries reach their limits and fail to keep up with the energy requirements of modern electronics, micro fuel cells with passively pumped higher energy density liquid reactants such as methanol have been suggested as a potential replacement [8].Regardless...

show abstract

Section: Research Perspectivesmentioning

confidence: 99%

mentioning

confidence: 99%

Co-laminar flow cells for electrochemical energy conversion

Goulet

Kjeang

2014

Journal of Power Sources

104

View full text Add to dashboard Cite

show abstract

“…The voltage obtained on the fuel cell is a function of this gradient of hydrogen ions, hence it is important to examine this phenomenon. The hydrogen ions concentration in the bulk was calculated by Equam sec tion (13). The concentrations as a function of the distance from the anode, (Figure 4) are plotted for different values of surface generation, which were taken from the saturation values in Figure 3.…”

Section: Hydrogen Ions Concentration Between the Electrodesmentioning

confidence: 99%

“…The electrons generated in the oxidation reaction can pass to the anode directly, or through mediator. An exponential decay in the availability of oxygen from the cathode side was observed [12,13]. Various authors have used theoretical and experimental methods for estimating the fuel cell performance [14][15][16].…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Physical Modeling of the Enzymatic Glucose-Fuelled Fuel Cells

Rubin¹,

Mor

2013

ACES

View full text Add to dashboard Cite

An enzymatic glucose biofuel cell uses glucose as fuel and enzymes as biocatalyst, to transform biochemical energy into electrical energy. An analytical modelling of an enzymatic biofuel cell should be used, while developing fuel cell, to estimate its various enzymatic parameters, to obtain the highest voltage feasibly. The analytical model was developed, and the open circuit voltage (OCV) calculated by the model for various parameters of the fuel cell is in agreement with the experimental results. The OCV is interpreted by using this model, based on theoretical consideration of ions transportation in the solution. The generation and consumptions of the ions near the electrodes were defined in the model by exponential approximations, with different depletion coefficients. The model reveals that increasing the rates of hydrogen ions generation and (or) consumption by enzyme or chemical reactions leads to a higher value of OCV. The model points that the OCV is saturated with a glucose concentration and increased logarithmically with a surface enzyme concentration. Hence, a low glucose concentration is sufficient to obtain adequate OCV, on the one hand, but it can be increased by increasing electrode surface porosity, on the other hand. This model can be expanded to include time and close circuit voltage.

show abstract

Sustainable and renewable electric energy generation with continuous flow enzymatic fuel cell

Uru

Kilic

Yetiren

2022

Env Prog and Sustain Energy

View full text Add to dashboard Cite

A continuous flow enzymatic fuel cell (EFC) based on poly(pyrrole-co-pyrrole-2-carboxylic acid) film was used for sustainable energy generation. The system parameters were optimized to generate maximum power. Optimum cycle number for electropolymerization was found to be 12.5 for bioanode, and 20 for biocathode.The best performance was reached at pH 7, 1 ml min À1 flow rate and cell potential of 0.51 V. A power density of 0.36 μW cm À2 in 10 min was generated with 0.86 μg glucose dehydrogenase and 0.35 μg bilirubin oxidase enzyme quantity by using 100 mmol L À1 glucose. The EFC performance was investigated with municipal sewage, and the system generated a power density of 0.85 μW cm À2 . Results showed that the proposed EFC could be successfully used at waste utilization, especially for the wastewater with glycolytic content.

show abstract

Enzyme-Based Microfluidic Biofuel Cell to Generate Micropower

Cited by 13 publications

References 46 publications

Co-laminar flow cells for electrochemical energy conversion

Co-laminar flow cells for electrochemical energy conversion

Physical Modeling of the Enzymatic Glucose-Fuelled Fuel Cells

Sustainable and renewable electric energy generation with continuous flow enzymatic fuel cell

Contact Info

Product

Resources

About