Effect of conductive carbon material content and structure in carbon fiber paper made from carbon felt on the performance of a proton exchange membrane fuel cell

Hung, Chih-Jung; Liu, Ching-Han; Wang, Chien-Hsun; Chen, Wei‐Hung; Shen, Chin-Wei; Liang, Heng‐Chia; Ko, Tse‐Hao

doi:10.1016/j.renene.2015.01.021

Cited by 30 publications

(10 citation statements)

References 17 publications

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“…Benefiting from the interfused network and an all-graphene structure, our binder-free GFFs outperform commercially available carbon fibre papers on both conductivity and flexibility. In view of the broad application of carbon fibre papers in the green energy fields, such as gas diffusion layers for fuel cells5152 and electrodes for energy storage535455 and water splitting56 devices, the GFFs should become an alternative choice showing a great appeal. Our preliminary attempt to build supercapacitors using 130GFF-N 2 H 4 as electrodes revealed remarkable gravimetric (206 F g −1 at a current density of 1 A g −1 ) and areal capacitance (220 mF cm −2 at 1 mA cm −2 ; see Supplementary Fig.…”

Section: Discussionmentioning

confidence: 99%

Multifunctional non-woven fabrics of interfused graphene fibres

et al. 2016

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Carbon-based fibres hold promise for preparing multifunctional fabrics with electrical conductivity, thermal conductivity, permeability, flexibility and lightweight. However, these fabrics are of limited performance mainly because of the weak interaction between fibres. Here we report non-woven graphene fibre fabrics composed of randomly oriented and interfused graphene fibres with strong interfibre bonding. The all-graphene fabrics obtained through a wet-fusing assembly approach are porous and lightweight, showing high in-plane electrical conductivity up to ∼2.8 × 104 S m−1 and prominent thermal conductivity of ∼301.5 W m−1 K−1. Given the low density (0.22 g cm−3), their specific electrical and thermal conductivities set new records for carbon-based papers/fabrics and even surpass those of individual graphene fibres. The as-prepared fabrics are further used as ultrafast responding electrothermal heaters and durable oil-adsorbing felts, demonstrating their great potential as high-performance and multifunctional fabrics in real-world applications.

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Section: Discussionmentioning

confidence: 99%

Multifunctional non-woven fabrics of interfused graphene fibres

et al. 2016

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“…GDLs are made of carbon paper (Park et al, 2008) or carbon cloths (Velayutham, 2011) that are waterproofed using PTFE (between 10 and 20 weight%). The carbon paper is manufactured by hot pressing and carbonizing carbon fibres aggregated with approximately 15% phenolic resin (Hung et al, 2015), whereas carbon cloth is made of knitted carbon fibres. The carbonaceous support is coated with a microporous layer composed of carbon black treated with PTFE to improve PEM fuel cell performance.…”

Section: Meamentioning

confidence: 99%

Environmental assessment of proton exchange membrane fuel cell platinum catalyst recycling

Duclos

Lupsea

Mandil

et al. 2017

Journal of Cleaner Production

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International audienceA proton exchange membrane (PEM) fuel cell, an alternative to combustion processes that consume fossil resources, is used to convert energy stored in the form of hydrogen into electricity. The membrane-electrode assembly (MEA), the core of this system, contains platinum, a noble metal, which is a limited resource. This paper presents an environmental assessment of a recycling process for the platinum catalyst contained in the MEA of a PEM fuel cell. During this study, four hydrometallurgical platinum recovery processes from Pt/C particles have been developed at the laboratory scale. The considered process alternatives are composed of the four following steps: leaching, separation, precipitation and filtration. Approximately 76% of the platinum can be recovered as [NH4]2PtCl6 salt using the most efficient process alternatives. In this case, platinum leaching is carried out with a mixture of H2O2 and HCl, followed by liquid/liquid platinum extraction and a precipitation step.The environmental assessment was performed using the SimaPro 8 tool coupled with the EcoInvent 3.1 database. The environmental impacts were estimated for a 25 cm2 active area MEA considering the production and end-of-life stages of the MEA life-cycle using the CML-IA baseline V3.02 method. The results show that more than half of the main impacts of the MEA life-cycle can be avoided for four relevant impact categories if platinum is recovered in the end-of-life of the product

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“…The PEMFC already are reliant on platinum as a material that increases its price. Therefore, platinum replacement with cheaper (carbon) composites would increase the commercial viability of fuel cells and, consequently, of the hydrogen as an energy carrier . Carbon allotropes, nanofibers, or nanotubes exhibit physical and chemical potential characteristics that could improve the batteries, making them an ideal material for VRFB solid electrodes .…”

Section: Storage Systems – Technologies Efficiencies and Costsmentioning

confidence: 99%

Potential of Redox Flow Batteries and Hydrogen as Integrated Storage for Decentralized Energy Systems

Hanley¹,

Amarandei²,

Glowacki³

2016

Energy Fuels

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The requirement for low-cost access to energy storage technologies is increasing with the continued growth of renewable energy. The growth of the hydrogen economy is also expected to emerge to improve energy security and meet the growing pressures of environmental requirements. Hydrogen and redox flow batteries (RFB) have promising energy storage characteristics that can allow increased penetration of renewable energy and reduction in grid energy. The strong synergy between natural gas and hydrogen anticipates that new efficient methods of hydrogen production such as microwave plasma processing of natural gas might have a leading role. Additionally, the improvements in the carbon allotropes properties and their cost are expected to influence large-scale energy storage system costs. A technical and economic comparison of vanadium and all-iron RFB with hydrogen will be explored on an individual and integrated basis. The findings show hydrogen’s capability for bulk energy storage and highlights the benefits of integrated storage. This proves that integration of various storage systems can play an important role for the future development of the decentralized renewable energy systems.

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Effect of conductive carbon material content and structure in carbon fiber paper made from carbon felt on the performance of a proton exchange membrane fuel cell

Cited by 30 publications

References 17 publications

Multifunctional non-woven fabrics of interfused graphene fibres

Multifunctional non-woven fabrics of interfused graphene fibres

Environmental assessment of proton exchange membrane fuel cell platinum catalyst recycling

Potential of Redox Flow Batteries and Hydrogen as Integrated Storage for Decentralized Energy Systems

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