A new method for optimal fabrication of carbon composite paper as gas diffusion layer used in proton exchange membrane of fuel cells

Taherian, Reza; Ghorbani, Mohammad Matboo; Kiahosseini, Seyed Rahim

doi:10.1016/j.jelechem.2018.03.009

Cited by 32 publications

(28 citation statements)

References 31 publications

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“…The GDL consists of a substrate, an MPL, and a permeable layer between them. The substrate is carbon fiber, bonded with adhesive polymers, such as phenolic resin [27], epoxy resin [28], phenolic resin [29], and cellulose acetate [30]. Of these adhesive polymers, epoxy resins are most often used for GDL fabrication.…”

Section: Resultsmentioning

confidence: 99%

An Investigation of the Compressive Behavior of Polymer Electrode Membrane Fuel Cell’s Gas Diffusion Layers under Different Temperatures

2018

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In this paper, a commercial gas diffusion layer is used, to quantitatively study the correlation between its compressive characteristics and its operating temperature. In polymer electrode membrane fuel cells, the gas diffusion layer plays a vital role in the membrane electrode assembly, over a wide range of operating temperatures. Therefore, understanding the thermo-mechanical performance of gas diffusion layers is crucial to design fuel cells. In this research, a series of compressive tests were conducted on a commercial gas diffusion layer, at three different temperatures. Additionally, a microscopical investigation was carried out with the help of a scanning electron microscope, to study the evolution and development of the microstructural damages in the gas diffusion layers which is caused by the thermo-mechanical load. From the obtained results, it could be concluded that the compressive stiffness of the commercial gas diffusion layer depends, to a great extent, on its operational temperature.

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Section: Resultsmentioning

confidence: 99%

An Investigation of the Compressive Behavior of Polymer Electrode Membrane Fuel Cell’s Gas Diffusion Layers under Different Temperatures

2018

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“…En yaygın kullanılan gaz difüzyon tabakaları polimer (fenolik reçine gibi) içeren karbon kâğıtlarıdır. PEM yakıt hücresinin performansı, gaz difüzyon tabakalarının gözenekliliğin büyüklüğüne ve dağılımına ve karbon kağıdının elektrik iletkenliğine büyük ölçüde bağlıdır [38].…”

Section: Gaz Difüzyon Tabakasıunclassified

Proton Exchange Membrane Fuel Cells: Thermodynamics, Components and Applications

Karanfil

2020

Mühendis Ve Makina

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Proton değişim membran (PEM) yakıt hücreleri yakıtta depolanan kimyasal enerjiyi doğrudan ve verimli bir şekilde elektrik enerjisine dönüştüren, tek yan ürün olarak suyun oluştuğu; enerji kullanımımızı, kirletici emisyonları ve fosil yakıtlara bağımlılığı azaltma potansiyeline sahip bir teknolojidir. Uzun yıllardır süren araştırma ve geliştirme çalışmaları neticesinde ticarileşmeye başlayan PEM yakıt hücrelerinin geleneksel teknolojilere alternatif olabilmesi için hala aşılması gereken zorluklar vardır. Sürdürülebilirlik, dayanıklılık ve maliyet gibi zorlukların aşılabilmesi için PEM yakıt hücrelerinin çalışma prensibinin, termodinamiğinin ve araştırma çalışmaları hala devam eden bileşenlerinin görevlerinin detaylı olarak irdelenmesi; ayrıca potansiyel uygulama alanlarının bilinerek geliştirme çalışmalarının bu yönde devam etmesi gerekmektedir. Yapılan derleme çalışmasında, PEM yakıt hücresinin teorisinin detaylı bir biçimde incelenmesinin yanı sıra; dünya literatüründe devam eden çalışmalar ile ilgili bilgi verilmiş ve keşfediliş tarihinden bu yana olan uygulama alanları özetlenmiştir.

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“…Some other strategies are used to improve the electrical conductivity of nongraphitizable matrices, such as adding carbonaceous additives including carbon black, Ketjenblack, natural graphite, expanded graphite, and graphene oxide, into impregnating resin. [5,7,[11][12][13][14] However, the spontaneous agglomeration of carbonaceous additives modifies the porous structure of CPs, reducing the uniformity of the distribution of macropores. [13] Catalytic graphitization is another scenario to achieve highly graphitized carbon matrix under moderate conditions.…”

Section: Introductionmentioning

confidence: 99%

Boron‐Catalytic Graphitization Boosting the Production of High‐Performance Carbon Paper at a Moderate Temperature

et al. 2021

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Carbon papers (CPs), as the substrate materials for gas diffusion layers in proton exchange membrane fuel cells, require high electrical conductivity, efficient gas permeability, and robust mechanical properties, which are unable to be completely satisfied by graphitization at a high temperature. Herein, the boroncatalytic graphitization of CPs is reported. The boron-doped CP matrix starts to graphitize at 1800 C, and evolves into well-oriented graphitic carbon at 2100 C. In contrast, the graphitization temperature for undoped CPs increases by several 100 degrees. The boron-doped CPs achieve the in-plane electrical conductivity of around 4.8 Â 10 4 S m À1 after graphitization at 2100 C, which is %2 times as high as that of undoped CPs graphitized at 2700 C. In addition, the tensile strength of the former one is 1.7 times of that of the latter one. The through-plane gas permeability of boron-doped CPs is comparable to that of a commercial Toray CP. Boron-catalytic graphitization at a moderate temperature provides a more sustainable pathway of producing high-performance CPs.

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A new method for optimal fabrication of carbon composite paper as gas diffusion layer used in proton exchange membrane of fuel cells

Cited by 32 publications

References 31 publications

An Investigation of the Compressive Behavior of Polymer Electrode Membrane Fuel Cell’s Gas Diffusion Layers under Different Temperatures

An Investigation of the Compressive Behavior of Polymer Electrode Membrane Fuel Cell’s Gas Diffusion Layers under Different Temperatures

Proton Exchange Membrane Fuel Cells: Thermodynamics, Components and Applications

Boron‐Catalytic Graphitization Boosting the Production of High‐Performance Carbon Paper at a Moderate Temperature

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