Expanded and nano-structured carbonaceous graphite for high performance anisotropic fuel cell polymer composites

Nazmus Saadat; Hom N. Dhakal; Shaffiq Jaffer; Jimi Tjong; Wemin Yang; Jing Tan; Mohini Sain

doi:10.1016/j.compscitech.2021.108654

Expanded and nano-structured carbonaceous graphite for high performance anisotropic fuel cell polymer composites

Nazmus Saadat, Hom N. Dhakal, Shaffiq Jaffer, Jimi Tjong, Wemin Yang, Jing Tan, Mohini Sain^*

^*Corresponding author for this work

School of Mechanical & Design Engineering

Research output: Contribution to journal › Article › peer-review

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Abstract

We disclose a novel high pressure design, non-destructive structural analysis and fabrication of bipolar plate composites (BPC) that are highly conductive yet mechanically flexible. Here we report the highest electrical conductivity of 221 S cm⁻¹ of a BPC by tailoring graphitic structure of carbon nanomaterials and their functional attributes through enhancement of in-plane conductivity as well as mechanical strength; another advanced BPC also displays a maximum flexural strength of 52 MPa. These key functional efficiency enhancements of hydrogen based electric power trains components became highly relevant for medium to heavy duty transportation. Evidently, tunable, expandable and expanded graphitic composites can play a major role in facilitating the fabrication of a light-weight high-performance plates for fuel cell application.

Original language	English
Article number	108654
Pages (from-to)	1-10
Number of pages	10
Journal	Composites Science and Technology
Volume	207
Early online date	2 Feb 2021
DOIs	https://doi.org/10.1016/j.compscitech.2021.108654
Publication status	Published - 3 May 2021

Keywords

Electrical properties
Fuel cell
Graphene
Mechanical properties
Multifunctional composites

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10.1016/j.compscitech.2021.108654

Paper_ Anisotropically_Nazmus_Sain012921_CSTE_ManuscriptAccepted author manuscript (Post-print), 1.51 MBLicence: CC BY-NC-ND

Cite this

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title = "Expanded and nano-structured carbonaceous graphite for high performance anisotropic fuel cell polymer composites",

abstract = "We disclose a novel high pressure design, non-destructive structural analysis and fabrication of bipolar plate composites (BPC) that are highly conductive yet mechanically flexible. Here we report the highest electrical conductivity of 221 S cm−1 of a BPC by tailoring graphitic structure of carbon nanomaterials and their functional attributes through enhancement of in-plane conductivity as well as mechanical strength; another advanced BPC also displays a maximum flexural strength of 52 MPa. These key functional efficiency enhancements of hydrogen based electric power trains components became highly relevant for medium to heavy duty transportation. Evidently, tunable, expandable and expanded graphitic composites can play a major role in facilitating the fabrication of a light-weight high-performance plates for fuel cell application.",

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AU - Saadat, Nazmus

AU - Dhakal, Hom N.

AU - Jaffer, Shaffiq

AU - Tjong, Jimi

AU - Yang, Wemin

AU - Tan, Jing

AU - Sain, Mohini

PY - 2021/5/3

Y1 - 2021/5/3

N2 - We disclose a novel high pressure design, non-destructive structural analysis and fabrication of bipolar plate composites (BPC) that are highly conductive yet mechanically flexible. Here we report the highest electrical conductivity of 221 S cm−1 of a BPC by tailoring graphitic structure of carbon nanomaterials and their functional attributes through enhancement of in-plane conductivity as well as mechanical strength; another advanced BPC also displays a maximum flexural strength of 52 MPa. These key functional efficiency enhancements of hydrogen based electric power trains components became highly relevant for medium to heavy duty transportation. Evidently, tunable, expandable and expanded graphitic composites can play a major role in facilitating the fabrication of a light-weight high-performance plates for fuel cell application.

AB - We disclose a novel high pressure design, non-destructive structural analysis and fabrication of bipolar plate composites (BPC) that are highly conductive yet mechanically flexible. Here we report the highest electrical conductivity of 221 S cm−1 of a BPC by tailoring graphitic structure of carbon nanomaterials and their functional attributes through enhancement of in-plane conductivity as well as mechanical strength; another advanced BPC also displays a maximum flexural strength of 52 MPa. These key functional efficiency enhancements of hydrogen based electric power trains components became highly relevant for medium to heavy duty transportation. Evidently, tunable, expandable and expanded graphitic composites can play a major role in facilitating the fabrication of a light-weight high-performance plates for fuel cell application.

KW - Electrical properties

KW - Fuel cell

KW - Graphene

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KW - Multifunctional composites

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Expanded and nano-structured carbonaceous graphite for high performance anisotropic fuel cell polymer composites

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