Miniaturized additively manufactured co-laminar microfluidic glucose biofuel cell with optimized grade pencil bioelectrodes

Rewatkar, Prakash; Bandapati, Madhavi; Goel, Sanket

doi:10.1016/j.ijhydene.2019.10.002

Cited by 24 publications

(14 citation statements)

References 30 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This Y-shaped microchannel provides an advantage in reducing the depletion boundary layer and cross-diffusional mixing between fuel and oxidant [79]. Several researchers have developed microfluidic EBFCs [73,[80][81][82] without using the proton exchange membrane (PEM). Although this system successfully eliminates the use of expensive PEM, problems such as poor mass transport, mixing between fuel and oxidant, high internal resistance, insufficient fuel utilization, and interactive interference still occur [83].…”

Section: System In Ebfcmentioning

confidence: 99%

“…The power and current of the EBFC produced using this fabrication are 4.15 µW/cm 2 and 13.36 µA/cm 2 at different flow rates, respectively. In other work by the same research group [80], they used non-toxic pencil graphite electrodes (PGE) as electrode materials in the 3D printing fabrication process. MWCNT coats the PGE as support for enzyme immobilization.…”

Section: System In Ebfcmentioning

confidence: 99%

See 1 more Smart Citation

Mini-Review: Recent Technologies of Electrode and System in the Enzymatic Biofuel Cell (EBFC)

Karim

Yang

2021

Applied Sciences

View full text Add to dashboard Cite

Enzymatic biofuel cells (EBFCs) is one of the branches of fuel cells that can provide high potential for various applications. However, EBFC has challenges in improving the performance power output. Exploring electrode materials is one way to increase enzyme utilization and lead to a high conversion rate so that efficient enzyme loading on the electrode surface can function correctly. This paper briefly presents recent technologies developed to improve bio-catalytic properties, biocompatibility, biodegradability, implantability, and mechanical flexibility in EBFCs. Among the combinations of materials that can be studied and are interesting because of their properties, there are various nanoparticles, carbon-based materials, and conductive polymers; all three have the advantages of chemical stability and enhanced electron transfer. The methods to immobilize enzymes, and support and substrate issues are also covered in this paper. In addition, the EBFC system is also explored and developed as suitable for applications such as self-pumping and microfluidic EBFC.

show abstract

Section: System In Ebfcmentioning

confidence: 99%

Section: System In Ebfcmentioning

confidence: 99%

Mini-Review: Recent Technologies of Electrode and System in the Enzymatic Biofuel Cell (EBFC)

Karim

Yang

2021

Applied Sciences

View full text Add to dashboard Cite

show abstract

“…The progress of 3D printing, highlighting its simple and precision prototyping economically (Sun et al 2021), has gained attention by many researchers. The integration of 3D printing and micro uidics has delivered numerous applications because of their miniaturization (Rewatkar et al 2019) and simple manufacturing procedures (Ambrosi and Pumera 2016). The most prominent method of 3D printing is Fused deposition Modelling (FDM), where polymeric laments are used predominantly (Carrico et al 2015).…”

Section: Introductionmentioning

confidence: 99%

Additively Manufactured Microfluidic Enzymatic Biofuel Cell with Comb -like Bioelectrodes

Sivakumar

Goel

2021

Preprint

Self Cite

View full text Add to dashboard Cite

3D printing is a growing processing technology, which offers manufacturing of tailored, portable and integrable electrochemical energy harvesting device for realising next generation bioelectronics devices. Enzymatic biofuel cells (EBFCs) associated with biocatalysis uses biofriendly alternatives for energy harvesting. Also at microscale, the precision design and assembling of the bioelectrodes are complex procedures. The combination of computer-assisted design and 3D printing has enabled the realization of customized electrochemical miniaturized devices for various applications. In this work, a completely 3D printed EBFC at a micro level configuration, names as 3D-µEBFC, integrated with new precise bioelectrode configuration has been demonstrated. The 3D-µEBFC consists of bioelectrode with comb-like structures with carbon black which helps in increasing the active surface to volume ratio available for electrocatalysis by 80 times higher than plain electrodes. This micro-device produced an output power density of 13 µW/cm2 with an open circuit voltage of 570 mV. The 3D printed bioelectrodes show high stability, which may transform the fabrication methodology by decreasing production costs and time, letting the development of complex-shaped and purely 3D printed micro-devices.

show abstract

“…Bandapati et al investigated the performance of membraneless glucose biofuel cell with various grades of graphite pencils act as electrodes 7 , 8 . Rewatkar et al examined 3D printed enzymatic biofuel cell performance with graphite pencil as an electrodes 9 .…”

Section: Introductionmentioning

confidence: 99%

Automated pencil electrode formation platform to realize uniform and reproducible graphite electrodes on paper for microfluidic fuel cells

Rao

Rewatkar

Dubey

et al. 2020

Sci Rep

Self Cite

View full text Add to dashboard Cite

Graphite pencil stroked electrodes for paper-based Microfluidic devices are gaining immense attention due to their electrochemical properties, cost efficiency, and ease-of-use. However, their widespread use has been hindered by the challenges associated with their manual fabrication such as non-uniformity in graphite deposition, applied pressure, etc. This work presents the design and development of an automated graphite pencil stroking device for graphite electrode fabrication with high efficiency through a compact, inexpensive and automatic process, with reduced fabrication time and human intervention leading to more uniformity. The motion platform of Graphtec plotter was used to create multiple strokes with the help of the proposed device. Such inexpensive graphite electrodes (less than the US $1) have been observed to be porous in nature, acting as diffusion agents. The automated graphite electrodes were used to study the performance of microfluidic paper fuel cells (MPFCs) with formic acid, oxygen, and sulphuric acid acting as fuel, oxidising agent and electrolyte respectively. From this configuration, the maximum current density and power density were measured to be 1,305.5 µA cm −2 and 135.5 µW cm −2 , respectively at 0.3 V stable OCP at 100 strokes. Overall, the study enumerates the development of an automated pencil stroke device for fabricating graphite electrodes, which can potentially be harnessed in numerous miniaturized paper based applications. Microfluidic devices with integrated electrodes, or electromicrofluidic devices, have attained essential roles in diverse areas, including energy harvesting for portable applications and sensing devices 1-3. Paper-pencil based microfluidic fuel cell is one of the most recent vital advancements to develop point of the source (POS) and point of care (POC) devices owing to the well-proven benefits of microfluidic environment and graphite electrodes 4,5. In recent years, graphite pencils are being used as electrodes and have shown encouraging outcomes and promising features of MPFCs when compared with the existing approaches. Initially approaches on graphite electrodes, Aoki et al. demonstrated the first use for of graphite material (pencil lead), as electrodes 6. Bandapati et al. investigated the performance of membraneless glucose biofuel cell with various grades of graphite pencils act as electrodes 7,8. Rewatkar et al. examined 3D printed enzymatic biofuel cell performance with graphite pencil as an electrodes 9. In spite of the numerable benefits of such devices, they come with an inherent setback of the physically fabricated electrodes with non-uniform deposition of graphite due to the subjective nature of the applied pressure and manual counting of the number of strokes. Most of the recent researches in the field of paper-pencil based microfuel cells employ manual deposition of graphite on the paper for fabricating the electrode. Arun et al. reported formic acid microfluidic fuel cell with manual graphite pencil electrodes with diverse grades of pencils 1...

show abstract

Miniaturized additively manufactured co-laminar microfluidic glucose biofuel cell with optimized grade pencil bioelectrodes

Cited by 24 publications

References 30 publications

Mini-Review: Recent Technologies of Electrode and System in the Enzymatic Biofuel Cell (EBFC)

Mini-Review: Recent Technologies of Electrode and System in the Enzymatic Biofuel Cell (EBFC)

Additively Manufactured Microfluidic Enzymatic Biofuel Cell with Comb -like Bioelectrodes

Automated pencil electrode formation platform to realize uniform and reproducible graphite electrodes on paper for microfluidic fuel cells

Contact Info

Product

Resources

About