Evaluation of hybrid and enzymatic nanofluidic fuel cells using 3D carbon structures

Escalona-Villalpando, Ricardo A.; Martínez-Maciel, A.C.; Espinosa-Angeles, Julio César; Ortiz-Ortega, E.; Arjona, Noé; Arriaga, L.G.; Ledesma‐García, J.

doi:10.1016/j.ijhydene.2018.04.016

Cited by 16 publications

(5 citation statements)

References 28 publications

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“…5a. In the evaluation of the μFC, the independent anolyte and catholyte inlets were used to increase voltage, current, and power performance, while the flow rate was 3 mL h −1 , in accordance to previously reported works [27,44,45]. The current and power curves can be appreciated in Fig.…”

Section: Evaluation Of Cholesterol As Fuel In a μFcmentioning

confidence: 73%

“…The μFC prototype used in this study has already been published by Escalona-Villalpando et al [27]. The anode was prepared by deposition on a Toray paper electrode (A = 0.25 cm 2 ) 0.7 mg cm −2 of catalytic load of Cu/Cu 2 O, along with 0.5% wt/wt Chitosan, 15% v/v acetic acid, and 15 mL was pipetted onto each carbon electrode surface.…”

Section: Evaluation Of Cu/cu 2 O Nps In a Microfluidic Fuel Cell Usin...mentioning

confidence: 99%

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Copper nanoparticles suitable for bifunctional cholesterol oxidation reaction: harvesting energy and sensor

Espinosa-Lagunes

Cruz

Vega-Azamar

et al. 2022

Mater Renew Sustain Energy

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This study reports the performance of simple low-cost synthesized bifunctional Cu/Cu2O nanoparticles (NPs) used as a catalyst for energy-harvesting applications through of a microfluidic fuel cell (µFC), and further, as cholesterol (Chol) sensor. TEM characterization of the NPs showed spheres between 4 and 10 nm, while XRD and XPS analysis confirmed the composition and preferential crystallographic plane of Cu/Cu2O. In addition, 25.26 m2 g−1 surface area was obtained, which is greater than those commercial materials. NPs showed high activity toward the cholesterol oxidation reaction when were used as a sensor, obtaining a linear interval between 0.5 and 1 mM and 850 µA mM−1 mg−1 of sensitivity and 8.9 µM limit of quantification LOQ. These values are comparable to results previously reported. Moreover, Cu/Cu2O NPs were used as anode in a µFC with 0.96 V of cell voltage and 6.5 mA cm−2 and 1.03 mW cm−2 of current and power density, respectively. This performance is the highest currently reported for cholesterol application as an alternative fuel, and the first one reported for a microfluidic fuel cell system as far as is known. Results showed that the obtained Cu-based NPs presented an excellent performance for the dual application both µFC and sensor, which has potential applications in biomedicine and as an alternative energy source.

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Section: Evaluation Of Cholesterol As Fuel In a μFcmentioning

confidence: 73%

Section: Evaluation Of Cu/cu 2 O Nps In a Microfluidic Fuel Cell Usin...mentioning

confidence: 99%

Copper nanoparticles suitable for bifunctional cholesterol oxidation reaction: harvesting energy and sensor

Espinosa-Lagunes

Cruz

Vega-Azamar

et al. 2022

Mater Renew Sustain Energy

Self Cite

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“…Though carbon nanotubes are typically physisorbed or compressed with enzyme catalyst of choice, followed by coating of semi-permeable polymer like Nafion to prevent desorption or leaching of the enzymes, more complex setups have been reported to enhance the immobilization of the enzyme as well as electron transfer by using electrode materials of higher surface area and electrical conductivity. Carbon-based electrode materials were chemically modified or doped for increased enzyme loading and stability of enzyme immobilization (Meredith et al, 2011 ; Karaśkiewicz et al, 2012 ; Wei et al, 2012 ; Giroud and Minteer, 2013 ), decorated with metallic nanomaterials for covalent bonding of enzymes and enhanced electron transfer (Naruse et al, 2011 ; Lalaoui et al, 2016a ), or combined with various carbonaceous nanomaterials to form composite electrodes (Wu et al, 2013 ; Campbell et al, 2015 ; Escalona-Villalpando et al, 2018 ). For example, carbon nanotubes functionalized with naphthalene, an aromatic group toward which laccase exhibited affinity due to its hydrophobic pocket, were efficient electrode materials in not only ensuring electrical wiring between enzyme cofactor and the electrode surface but also increasing the amount of enzymes in favorable orientation for DET (Karaśkiewicz et al, 2012 ).…”

Section: Nanomaterial-based Electrodesmentioning

confidence: 99%

Recent Advances in the Direct Electron Transfer-Enabled Enzymatic Fuel Cells

Myung

2021

Front. Chem.

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Direct electron transfer (DET), which requires no mediator to shuttle electrons from enzyme active site to the electrode surface, minimizes complexity caused by the mediator and can further enable miniaturization for biocompatible and implantable devices. However, because the redox cofactors are typically deeply embedded in the protein matrix of the enzymes, electrons generated from oxidation reaction cannot easily transfer to the electrode surface. In this review, methods to improve the DET rate for enhancement of enzymatic fuel cell performances are summarized, with a focus on the more recent works (past 10 years). Finally, progress on the application of DET-enabled EFC to some biomedical and implantable devices are reported.

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“…In this work, the electrodes were positioned on the sidewalls and accomplished 5 mW cm −2 of power density. Angeles et al utilized the 3D electrode of MWCNT‐GA/GOx and MWCNT‐3D elec‐GA/Lc. The Au‐Ag and laccase‐based electrodes were used as anodes and biocathodes, respectively, and the maximum power for this system was 17 mW cm −2 .…”

Section: Design Of Membrane‐less Fuel Cellsmentioning

confidence: 99%

Membrane‐less micro fuel cell system design and performance: An overview

et al. 2019

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Researchers interest in using fuel cells as a power source has grown because fuel cells are environmentally friendly. However, fuel cells still present challenges due to their performance and cost. This limits the commercialization of fuel cell systems, particularly in liquid fuel cells. One of the major obstacles is the Nafion membrane. The Nafion membrane is extremely expensive and causes the "fuel crossover phenomenon." Therefore, researchers have proposed a membrane-less fuel cell that eliminates the need of a membrane in the system mainly in micro fuel cells. Membrane-less fuel cell has shown an improvement on power density by approximately 12% compared with conventional type of proton electrolyte membrane fuel cell. However, there still a lack of information on system design and performance. Therefore, the main objective of this review is to present an extensive study focusing on the geometrical system design and performance of a membrane-less fuel cell system. It also presents the different types of membrane-less fuel cell systems. Lastly, it highlights the current problems and potentials to improve the performance of the system. Finally, it is observed that the cost of a membrane fuel cell can be reduced by 20% to 40% compared with the conventional type of fuel cell. KEYWORDS flow field design, geometrical design, laminar-based fuel cell, membrane-less fuel cell, shape of channel, system design

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Evaluation of hybrid and enzymatic nanofluidic fuel cells using 3D carbon structures

Cited by 16 publications

References 28 publications

Copper nanoparticles suitable for bifunctional cholesterol oxidation reaction: harvesting energy and sensor

Copper nanoparticles suitable for bifunctional cholesterol oxidation reaction: harvesting energy and sensor

Recent Advances in the Direct Electron Transfer-Enabled Enzymatic Fuel Cells

Membrane‐less micro fuel cell system design and performance: An overview

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