Carbon cloth based on PAN carbon fiber practicability for PEMFC applications

Yang, Hsiharng; Tu, Hung-Chi; Chiang, I-Long

doi:10.1016/j.ijhydene.2009.05.019

Cited by 25 publications

(9 citation statements)

References 14 publications

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“…Catalysts with the unique three-phase interface structure lead to the least mass transport resistance across the gas-liquid interface and to the high catalyst surface. Supporting materials used to fabricate gas-diffusion, electrodes are mainly carbon materials, such as carbon fiber [ 14 ], carbon paper [ 15 ], carbon nanotubes [ 16 – 18 ], carbon clothes [ 19 ], and active carbon [ 20 ] owing to their resistance to acid/basic media, and possibility to control the porosity and surface chemistry within certain limits. Due to the nanometer size, low resistance, high surface area, chemical stability, special mechanical, and electronic properties, carbon nanotubes show excellent properties in microelectronics, composite materials, and electrical application.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Reduction of CO₂ to Organic Acids by a Pd‐MWNTs Gas‐Diffusion Electrode in Aqueous Medium

Wang

Bian

et al. 2013

The Scientific World Journal

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Pd-multiwalled carbon nanotubes (Pd-MWNTs) catalysts for the conversion of CO2 to organic acids were prepared by the ethylene glycol reduction and fully characterized by Fourier transform infrared spectroscopy (FTIR), X-ray diffraction (XRD), transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), and cyclic voltammetry (CV) technologies. The amorphous Pd particles with an average size of 5.7 nm were highly dispersed on the surface of carbon nanotubes. Functional groups of the MWNTs played a key role in the palladium deposition. The results indicated that Pd-MWNTs could transform CO2 into organic acid with high catalytic activity and CO2 could take part in the reduction reaction directly. Additionally, the electrochemical reduction of CO2 was investigated by a diaphragm electrolysis device, using a Pd-MWNTs gas-diffusion electrode as a cathode and a Ti/RuO2 net as an anode. The main products in present system were formic acid and acetic acid identified by ion chromatograph. The selectivity of the products could be achieved by reaction conditions changing. The optimum faraday efficiencies of formic and acetic acids formed on the Pd-MWNTs gas-diffusion electrode at 4 V electrode voltages under 1 atm CO2 were 34.5% and 52.3%, respectively.

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Section: Introductionmentioning

confidence: 99%

Electrochemical Reduction of CO₂ to Organic Acids by a Pd‐MWNTs Gas‐Diffusion Electrode in Aqueous Medium

Wang

Bian

et al. 2013

The Scientific World Journal

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“…The sheet resistance of aligned CNTs array decreased to 21 ohm/ sq after uniformly coating with Pt. The sheet resistance can be reduced further by increasing thickness and approach that required for fuel cell applications [28, 29]. …”

Section: Resultsmentioning

confidence: 99%

Catalytic activity of ultrathin Pt films on aligned carbon nanotube arrays

Su¹,

Wu²,

Hinds³

2011

Carbon

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Uniform ultrathin Pt films were electrodeposited onto an aligned array of carbon nanotubes (CNTs) for high-area chemically stable methanol fuel cell anodes. Electrochemical treatment of the graphitic CNT surfaces by diazoniumbenzoic acid allowed for uniform Pt electroplating. The mass activity of the Pt thin film can reach 400 A/g at a scan rate of 20 mV/s and in a solution of 1 M CH3OH/0.5 M H2SO4. A programmed pulse potential at 0V was also seen to nearly eliminate the effects of carbon monoxide poisoning. The mass activity of Pt for methanol oxidation can be maintained at 300 A/g for more than 3000 s, which is 19 times of that under a constant potential of 0.7 V (vs Ag/AgCl).

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“…Along with this, a similar effect can also be achieved carbon fibers with phenolic resin, followed with a subsequent high temper zation process [44]. Yang et al [45] prepared a polyacrylonitrile (PAN)-d cloth showing low sheet resistance and high chemical stability. They contro count and yarn plies to produce the carbon cloth precursor by oxidizing th fiber, which was finally graphitized via annealing in Ar at 1700 °C.…”

Section: Carbon Fiber Clothmentioning

confidence: 93%

“…Along with this, a similar effect can also be achieved by coating the carbon fibers with phenolic resin, followed with a subsequent high temperature carbonization process [44]. Yang et al [45] prepared a polyacrylonitrile (PAN)-derived carbon cloth showing low sheet resistance and high chemical stability. They controlled the fabric count and yarn plies to produce the carbon cloth precursor by oxidizing the PAN-based fiber, which was finally graphitized via annealing in Ar at 1700 • C. The asprepared carbon fiber cloth contained 98.24% carbon (the other elements were H, S and O) and had an in-sheet resistance of 820 mΩ/ .…”

Section: Carbon Fiber Clothmentioning

confidence: 99%

Gas Diffusion Layer for Proton Exchange Membrane Fuel Cells: A Review

et al. 2022

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Proton exchange membrane fuel cells (PEMFCs) are an attractive type of fuel cell that have received successful commercialization, benefitted from its unique advantages (including an all solid-state structure, a low operating temperature and low environmental impact). In general, the structure of PEMFCs can be regarded as a sequential stacking of functional layers, among which the gas diffusion layer (GDL) plays an important role in connecting bipolar plates and catalyst layers both physically and electrically, offering a route for gas diffusion and drainage and providing mechanical support to the membrane electrode assemblies. The GDL commonly contains two layers; one is a thick and rigid macroporous substrate (MPS) and the other is a thin microporous layer (MPL), both with special functions. This work provides a brief review on the GDL to explain its structure and functions, summarize recent progress and outline future perspectives.

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Carbon cloth based on PAN carbon fiber practicability for PEMFC applications

Cited by 25 publications

References 14 publications

Electrochemical Reduction of CO₂ to Organic Acids by a Pd‐MWNTs Gas‐Diffusion Electrode in Aqueous Medium

Electrochemical Reduction of CO₂ to Organic Acids by a Pd‐MWNTs Gas‐Diffusion Electrode in Aqueous Medium

Catalytic activity of ultrathin Pt films on aligned carbon nanotube arrays

Gas Diffusion Layer for Proton Exchange Membrane Fuel Cells: A Review

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Carbon cloth based on PAN carbon fiber practicability for PEMFC applications

Cited by 25 publications

References 14 publications

Electrochemical Reduction of CO2 to Organic Acids by a Pd‐MWNTs Gas‐Diffusion Electrode in Aqueous Medium

Electrochemical Reduction of CO2 to Organic Acids by a Pd‐MWNTs Gas‐Diffusion Electrode in Aqueous Medium

Catalytic activity of ultrathin Pt films on aligned carbon nanotube arrays

Gas Diffusion Layer for Proton Exchange Membrane Fuel Cells: A Review

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Product

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Electrochemical Reduction of CO₂ to Organic Acids by a Pd‐MWNTs Gas‐Diffusion Electrode in Aqueous Medium

Electrochemical Reduction of CO₂ to Organic Acids by a Pd‐MWNTs Gas‐Diffusion Electrode in Aqueous Medium