Conical nano-structure arrays of Platinum cathode catalyst for enhanced cell performance in PEMFC (proton exchange membrane fuel cell)

Khan, Aziz; Nath, Bhabesh Kumar; Chutia, Joyanti

doi:10.1016/j.energy.2015.07.002

Cited by 20 publications

(3 citation statements)

References 34 publications

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“…Significant effort was made to improve the performance of PEMFC using different approach. Mathematical models [47,48], catalyst [49] and porous material [50] has been used to investigate and improve PEMFC performance. The effect of operating conditions on the performance of PEMFC had received considerable attention in recent time.…”

Section: Introductionmentioning

confidence: 99%

Thermo-economic analysis of proton exchange membrane fuel cell fuelled with methanol and methane

Suleiman

Abdulkareem

Umaru

et al. 2016

Energy Conversion and Management

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Section: Introductionmentioning

confidence: 99%

Thermo-economic analysis of proton exchange membrane fuel cell fuelled with methanol and methane

Suleiman

Abdulkareem

Umaru

et al. 2016

Energy Conversion and Management

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“…Direct patterning of membranes In addition to the template-based approaches discussed in the previous sections, direct surface treatments, including plasma and electron beam etching, can also be used to produce patterned membrane surfaces [102][103][104][105]. For instance, Omosebi and Besser [106] employed dry etching with an electron beam on masked PFSA membranes to produce square and line patterns, while Yakovlev et al [104] used direct sputtering of CeO 2 in Ar and O 2 atmosphere to produce nanopillar arrays and vertical pores on the membrane surface.…”

Section: Patterned Membranesmentioning

confidence: 99%

Advanced Electrode Structures for Proton Exchange Membrane Fuel Cells: Current Status and Path Forward

Yang,

Lee,

Qiao

et al. 2024

Electrochem. Energy Rev.

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Proton exchange membrane fuel cells (PEMFCs) have demonstrated their viability as a promising candidate for clean energy applications. However, performance of conventional PEMFC electrodes, especially the cathode electrode, suffers from low catalyst utilization and sluggish mass transport due to the randomly distributed components and tortuous transport pathways. Development of alternative architectures in which the electrode structure is controlled across a range of length scales provides a promising path toward overcoming these limitations. Here, we provide a comprehensive review of recent research and development of advanced electrode structures, organized by decreasing length-scale from the millimeter-scale to the nanometer-scale. Specifically, advanced electrode structures are categorized into five unique architectures for specific functions: (1) macro-patterned electrodes for enhanced macro-scale mass transport, (2) micro-patterned electrodes for enhanced micro-scale mass transport, (3) electrospun electrodes with fiber-based morphology for enhanced in-plane proton transport and through-plane O2 transport, (4) enhanced-porosity electrodes for improved oxygen transport through selective inclusion of void space, and (5) catalyst film electrodes for elimination of carbon corrosion and ionomer poisoning. The PEMFC performance results achieved from each alternative electrode structure are presented and tabulated for comparison with conventional electrode architectures. Moreover, analysis of mechanisms by which new electrode structures can improve performance is presented and discussed. Finally, an overview of current limitations and future research needs is presented to guide the development of electrode structures for next generation PEMFCs. Graphical Abstract Development of improved electrode architectures with the control of structure on length scales ranging from millimeters to nanometers could enable a new generation of fuel cells with increased performance and reduced cost. This paper presents an in-depth review and critical analysis of recent developments and future outlook on the design of advanced electrode structures.

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“…The water transport in the flow channel has a great influence on the performance of PEMFCs. Flow channels include serpentine channels, [4][5][6] sinusoidal channels, [7][8][9] conical channels, 10,11 and so on. For example, Chowdhury et al 5 have improved on the traditional single serpentine flow field.…”

Section: Introductionmentioning

confidence: 99%

Numerical study and prediction of water transfer in gas diffusion layer of proton exchange membrane fuel cells under vibrating conditions

Chen

2022

Intl J of Energy Research

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Summary Proton exchange membrane fuel cells (PEMFCs) operate with vibrations that have a significant effect on the transfer of water and gas in the gas diffusion layer (GDL), as well as the conduction of electrons. However, the available research on the effects of vibration on PEMFC is sparse. The main purpose of this study is to investigate the transfer characteristics of water in GDL under different vibration conditions and to optimize the water content of GDL using computational fluid dynamics (CFD) and machine learning method. The results show that the transfer of water in the GDL can be divided into two stages: water accumulation and drainage. In the accumulation stage, vibration has only a small effect on saturation; during the drainage stage, vibration causes saturation to fluctuate regularly. In addition, vibration has a large effect on the water content of GDL. Vibrations with a high frequency and a large amplitude will accelerate the accumulation of water in the GDL. Moreover, horizontal vibration will cause more flow paths, while vertical vibration will generate a relatively stable flow path. In addition, the established genetic algorithm‐back propagation neural network (GA‐BPNN) data‐driven model has good predictive performance for the saturation of water in the GDL. Compared to the physical simulation approach, the data‐driven model has faster computational efficiency and less computational cost and can be used to optimize the water content of GDL.

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Conical nano-structure arrays of Platinum cathode catalyst for enhanced cell performance in PEMFC (proton exchange membrane fuel cell)

Cited by 20 publications

References 34 publications

Thermo-economic analysis of proton exchange membrane fuel cell fuelled with methanol and methane

Thermo-economic analysis of proton exchange membrane fuel cell fuelled with methanol and methane

Advanced Electrode Structures for Proton Exchange Membrane Fuel Cells: Current Status and Path Forward

Numerical study and prediction of water transfer in gas diffusion layer of proton exchange membrane fuel cells under vibrating conditions

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