Use of a bilayer platinum-silver cathode to selectively perform the oxygen reduction reaction in a high concentration mixed-reactant microfluidic direct ethanol fuel cell

Estrada-Solís, M. J.; Abrego-Martínez, J.C.; Moreno-Zuria, A.; Arriaga, L.G.; Sun, Shuhui; Cuevas-Muñiz, F.M.; Mohamedi, Mohamed

doi:10.1016/j.ijhydene.2019.05.078

Cited by 23 publications

(12 citation statements)

References 48 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A cathode made of AgPt by PLD was proposed by M.J. Estrada‐Solís et al . in a MFEFC powered by ethanol 67 . The cathode was tolerant to ethanol of high concentration and performed in a similar way to pure Pt.…”

Section: Advances In Recent Yearsmentioning

confidence: 99%

Advances in microfluidic electrochemical fuel cells in recent years

Ning

Zhao

Zhou

2022

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

Microfluidic fuel cells (MFFCs) are performing increasingly important roles in production and life, such as electronic products, sensors and real-time equipment. The microfluidic electrochemical fuel cell (MFEFC) is a significant type of MFFC that has attracted recent global attention. Compared to the other two types, biofuel cells (MFBFCs) and photocatalytic fuel cells (MFPFCs), MFEFCs can be used in a broader range of applications and are less susceptible to external environment. This paper mainly discusses the recent progress of MFEFCs, including catalyst, fuel, electrode, oxidant, design, fabrication, model and performance. The paper summarized the latest research results and practical applications through the above aspects. The authors sincerely hope that this paper will be useful to researchers in the field. Finally, we summarize the article and outline the potential future development and applications of MFEFCs.

show abstract

Section: Advances In Recent Yearsmentioning

confidence: 99%

Advances in microfluidic electrochemical fuel cells in recent years

Ning

Zhao

Zhou

2022

J of Chemical Tech & Biotech

View full text Add to dashboard Cite

show abstract

“…The solid-state DEFC delivers an energy density up to 13.63 mWh cm −2 , which is among the highest reported to date, outstripping most batteries such as Zn-ion batteries, [58] Li-ion batteries, [59][60][61] Ni-Fe batteries, [62] solid-state Zn-air batteries [63] and other alcohol fuel cells [1] (Figure 7e). Besides, the power density is as high as 12.71 mW cm −2 , which is superior to many high-performance fuel cells, for instance, biofuel cell, [64,65] urea fuel cells, [66,67] methanol fuel cells, [68,69] solid-oxide fuel cell [70] and some alcohol fuel cells [71] (Figure 7f). Note that due to the solid-state property, its power density is lower than many liquid DEFCs (Table S3, Supporting Information).…”

Section: Electrochemical Performances Of the Flexible Defcmentioning

confidence: 99%

Flexible Solid‐State Direct Ethanol Fuel Cell Catalyzed by Nanoporous High‐Entropy Al‐Pd‐Ni‐Cu‐Mo Anode and Spinel (AlMnCo)₃O₄ Cathode

Wang

Lin

et al. 2020

Adv Funct Materials

View full text Add to dashboard Cite

As in many other electrochemical energy‐converting systems, the flexible direct ethanol fuel cells rely heavily on high‐performance catalysts with low noble metal contents and high tolerance to poisoning. In this work, a generic dealloying procedure to synthesize nanoporous multicomponent anodic and cathodic catalysts for the high‐performance ethanol fuel cells is reported. On the anode side, the nanoporous AlPdNiCuMo high‐entropy alloy exhibits an electrochemically active surface area of 88.53 m2 g−1Pd and a mass activity of 2.67 A mg−1Pd for the ethanol oxidation reaction. On the cathode side, the dealloyed spinel (AlMnCo)3O4 nanosheets with no noble metals demonstrate a comparable catalytic performance as the standard Pt/C for the oxygen reduction reaction, and tolerance to high concentrations of ethanol. Equipped with such anodic and cathodic catalysts, the flexible solid‐state ethanol fuel cell is able to deliver an ultra‐high energy density of 13.63 mWh cm−2 with only 3 mL ethanol, which is outstanding compared with other similar solid‐state energy devices. Moreover, the solid‐state ethanol fuel cell is highly flexible, durable and exhibits an inject‐and‐run function.

show abstract

“…Therefore, MFCs offer several advantages compared with conventional membrane‐based fuel cells, such as elimination of membrane‐related problems, high fuel/media flexibility, simple structure, and low cost 7,8 . These technical and economic promises have encouraged researchers to undertake constant and substantial studies to achieve practical applications of MFCs 9‐14 . However, as microscale dimensions are prerequisite to ensuring the core functionality of MFCs, important challenges still remain, and further enhancement is needed to overcome the low overall power outputs of MFCs associated with their inherent miniature cell dimensions 15‐17 …”

Section: Introductionmentioning

confidence: 99%

“…7,8 These technical and economic promises have encouraged researchers to undertake constant and substantial studies to achieve practical applications of MFCs. [9][10][11][12][13][14] However, as microscale dimensions are prerequisite to ensuring the core functionality of MFCs, important challenges still remain, and further enhancement is needed to overcome the low overall power outputs of MFCs associated with their inherent miniature cell dimensions. [15][16][17] To address the aforementioned problems, MFC stacks or arrays with multiple cells linked electrically in series, parallel, or combination of both have been developed.…”

Section: Introductionmentioning

confidence: 99%

A paper‐based self‐pumping microfluidic fuel cell stack with a novel vertical structure

Xü

et al. 2022

Intl J of Energy Research

View full text Add to dashboard Cite

Summary Microfluidic fuel cell (MFC) stacking is a prerequisite to enhance its power output for practical applications. However, most MFC stacks reported in the present literature require external pumps to maintain the co‐laminar flow and complex fluidic management networks for homogeneous flow and reactant distributions. To address these issues, a novel paper‐based self‐pumping MFC stack with potassium formate as the fuel and hydrogen peroxide as the oxidant is proposed in this study. The capillary action is employed to achieve passive liquid flow. A vertical stack structure with the unit cells piled one above another compactly is adopted to reduce the volumetric costs. The experimental results show that the maximum power outputs of the two‐cell and three‐cell stack prototypes are 4.01 and 7.26 mW cm−2, outperforming the MFC unit by 5.81 and 10.52 times, respectively. The superior performance is attributed to its distinct vertical stacking structure, which brings the enhanced capillary flows in the paper wicks and reduced ohmic losses in comparison with the unit cell. Further, effects of the filter paper and reactant concentrations on the stack performance were examined, and mass transfer of the fuel and/or oxidant to the electrode/electrolyte interface was identified as the main limiting factor. A loose microstructure of the paper wick was found beneficial in enhancing the mass transfer. The potential applications of the MFC stack in a variety of portable electronics are broad.

show abstract

Use of a bilayer platinum-silver cathode to selectively perform the oxygen reduction reaction in a high concentration mixed-reactant microfluidic direct ethanol fuel cell

Cited by 23 publications

References 48 publications

Advances in microfluidic electrochemical fuel cells in recent years

Advances in microfluidic electrochemical fuel cells in recent years

Flexible Solid‐State Direct Ethanol Fuel Cell Catalyzed by Nanoporous High‐Entropy Al‐Pd‐Ni‐Cu‐Mo Anode and Spinel (AlMnCo)₃O₄ Cathode

A paper‐based self‐pumping microfluidic fuel cell stack with a novel vertical structure

Contact Info

Product

Resources

About

Use of a bilayer platinum-silver cathode to selectively perform the oxygen reduction reaction in a high concentration mixed-reactant microfluidic direct ethanol fuel cell

Cited by 23 publications

References 48 publications

Advances in microfluidic electrochemical fuel cells in recent years

Advances in microfluidic electrochemical fuel cells in recent years

Flexible Solid‐State Direct Ethanol Fuel Cell Catalyzed by Nanoporous High‐Entropy Al‐Pd‐Ni‐Cu‐Mo Anode and Spinel (AlMnCo)3O4 Cathode

A paper‐based self‐pumping microfluidic fuel cell stack with a novel vertical structure

Contact Info

Product

Resources

About

Flexible Solid‐State Direct Ethanol Fuel Cell Catalyzed by Nanoporous High‐Entropy Al‐Pd‐Ni‐Cu‐Mo Anode and Spinel (AlMnCo)₃O₄ Cathode