The preparation technique optimization of epoxy/compressed expanded graphite composite bipolar plates for proton exchange membrane fuel cells

Du, Chao; Ming, Pingwen; Hou, Ming; Fu, Jie; Fu, Yongqiang; Luo, Xiaokuan; Shen, Qiang; Shao, Zhigang; Yi, Baolian

doi:10.1016/j.jpowsour.2010.03.005

Cited by 46 publications

(32 citation statements)

References 17 publications

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“…A significant component of the PEMFC is the bipolar plates which account for 80 % of the total stack weight and 45 % of stack cost [3]. Generally, there are two types of bipolar plates used in PEMFCs including metal based bipolar plate and carbon based bipolar plate [4,5]. However, the major limitation of metal based bipolar plate is the lack of corrosion resistance which promotes degradation while carbon-based bipolar plate is lack in mechanical properties as the material become more brittle, less durable and more permeable to gases [3,4,[6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Influence the Fillers Orientation: A Short Review

Radzuan¹,

Ab²,

M³

2018

Preprint

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Bipolar plates significantly contribute in the development of the polymer electrolyte membrane (PEM) fuel cells technology due to their ability to produce high electrical conductivity based on type of materials used. Mismatching of inappropriate materials and manufacture may lead to the inferior performance of PEM fuel cells. Hence, material development was determined crucial to balance the overall performance of PEM fuels including the mechanical properties and electrical conductivity of the materials. Studies on conductive polymer composites (CPCs) offered filler orientation as an alternative method to enhance the overall performance of bipolar plate. Filler orientations permit an excellent conductivity network formation while controlling the filler alignment based on required applications. This paper reviewed various studies of filler orientations including materials used and methods of manufacture of CPC materials for the effective development of bipolar plate.

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Section: Introductionmentioning

confidence: 99%

Influence the Fillers Orientation: A Short Review

Radzuan¹,

Ab²,

M³

2018

Preprint

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“…Carbon‐filled polymer composites (CPCs) have superior electrical and thermal conductivity, improved physical properties, and resistance to corrosive chemicals when compared to metals and metal‐filled polymers. Different types of carbon fillers such as single‐walled and multi‐walled carbon nanotubes (SWCNTs and MWCNTs) , carbon black (CB) , carbon fiber , graphene , graphite and graphite derivatives are reported in the literature to meet the required electrical and mechanical properties. These composites find applications in antistatic and electrostatic dissipation materials, positive temperature coefficient materials, electromagnetic interference shielding, and in semiconducting layers to prevent the discharge .…”

Section: Introductionmentioning

confidence: 99%

Effect of plasticizer on the electrical, thermal, and morphological properties of carbon black filled poly(propylene)

et al. 2015

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Poly(propylene) (PP)/carbon black (CB) composites are melt-blended in a Brabender mixer with varying CB content. With the special-grade conductive CB, the surface resistivity of PP/CB composite was reduced by 13 orders of magnitudes by increasing the CB content from 0 to 15 wt%. The plasticizer poly(ethylene glycol) di-methyl ether (PEGDME) is used (0-5 wt%) to improve the dispersion of the CB in the polymer matrix and to reduce the surface resistivity of the composites. But the PEGDME plasticizer used here has no positive effect on the surface resistivity of the composites; in fact, it enhances the surface resistivity value by one order of magnitude at higher concentration (5 wt%). The scanning electron microscopy (SEM) pictures indicate that the presence of foreign material (plasticizer) especially at higher concentration disrupts the continuous carbon network inversely affecting the conductivity values. Finally, the optimization of the input variables (CB and PEGDME loading) is done using the design of experiment approach. POLYM. COMPOS., 00:000-000,

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“…Determination of physical, mechanical and chemical properties of the compressed expanded graphite (CEG) composites prepared from poly-furfuryl alcohol is important to resolve whether the materials can be used as good quality catalysts [1][2] or composite membranes for gas separation [3][4] and also as proton exchange membranes in fuel cells [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

“…">IntroductionDetermination of physical, mechanical and chemical properties of the compressed expanded graphite (CEG) composites prepared from poly-furfuryl alcohol is important to resolve whether the materials can be used as good quality catalysts [1][2] or composite membranes for gas separation [3][4] and also as proton exchange membranes in fuel cells [5][6][7][8].The purpose of this paper was to search the relations between the structure of the CEG composites on successive stages of technological treatment and parameters describing the acoustic emission (AE) phenomena in these materials.These investigations are a continuation of our earlier studies [9] concerning physical and chemical properties of porous composites created on the basis of a CEG matrix, obtained after successive technological procedures of Compressed expanded graphite was applied as a base matrix to the preparation of microporous composites as products of impregnation, polymerization and carbonization of poly-furfuryl alcohol. During carbonization, the original polymeric structure is transformed into an amorphous turbostratic carbon structure with ultramicropores.…”

mentioning

confidence: 99%

Correlations Between Structures of Expanded Graphite – Polymer Composites and Acoustic Emission Phenomena / Korelacje Pomiędzy Strukturą Kompozytów Grafit Ekspandowany-Polimer A Zjawiskami Emisji Akustycznej

Berdowska

Berdowski

Aubry

2015

Archives of Metallurgy and Materials

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IntroductionDetermination of physical, mechanical and chemical properties of the compressed expanded graphite (CEG) composites prepared from poly-furfuryl alcohol is important to resolve whether the materials can be used as good quality catalysts [1][2] or composite membranes for gas separation [3][4] and also as proton exchange membranes in fuel cells [5][6][7][8].The purpose of this paper was to search the relations between the structure of the CEG composites on successive stages of technological treatment and parameters describing the acoustic emission (AE) phenomena in these materials.These investigations are a continuation of our earlier studies [9] concerning physical and chemical properties of porous composites created on the basis of a CEG matrix, obtained after successive technological procedures of Compressed expanded graphite was applied as a base matrix to the preparation of microporous composites as products of impregnation, polymerization and carbonization of poly-furfuryl alcohol. During carbonization, the original polymeric structure is transformed into an amorphous turbostratic carbon structure with ultramicropores. The structure, porosity and many chemical and physical properties change after each stage of their technological treatment.The acoustic emission method was used for accurate determination of these changes. It is possible to determine a large number of acoustic emission parameters and therefore to increase the amount of information provided by the studied materials. Acoustic emission pulses, counts rate, events rate, signal peak value and their sums were measured. Also frequency spectrum was received as a result of acoustic emission signal analysis with use of Fourier transformation procedure. The conclusions resulting from the Fourier analysis of the registered spectrum are very interesting and provide information about composite structures as well as bonds between the graphite matrix and the polymer that fills it. Analysis of acoustic emission parameters provides data on physical and chemical processes that would be very difficult to study by means of other techniques. Wide applications of these porous composites make them very interesting subject of the study.

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The preparation technique optimization of epoxy/compressed expanded graphite composite bipolar plates for proton exchange membrane fuel cells

Cited by 46 publications

References 17 publications

Influence the Fillers Orientation: A Short Review

Influence the Fillers Orientation: A Short Review

Effect of plasticizer on the electrical, thermal, and morphological properties of carbon black filled poly(propylene)

Correlations Between Structures of Expanded Graphite – Polymer Composites and Acoustic Emission Phenomena / Korelacje Pomiędzy Strukturą Kompozytów Grafit Ekspandowany-Polimer A Zjawiskami Emisji Akustycznej

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