Surface modification of carbon electrodes using an argon plasma

Tashima, Daisuke; Sakamoto, Atsushi; Taniguchi, M.; Sakoda, Tatsuya; Otsubo, Masahisa

doi:10.1016/j.vacuum.2008.04.060

Cited by 18 publications

(17 citation statements)

References 11 publications

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“…It has been reported that surface adsorption depends, for the most part, on surface conditions such as surface area and surface active sites [29,30]. The surface conditions of LATP glass have been reported to change continuously when immersed in aqueous electrolytes [31,32].…”

Section: Resultsmentioning

confidence: 99%

H+ diffusion and electrochemical stability of Li1+x+yAlxTi2−xSiyP3−yO12 glass in aqueous Li/air battery electrolytes

Ding

Shao

et al. 2012

Journal of Power Sources

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Section: Resultsmentioning

confidence: 99%

H+ diffusion and electrochemical stability of Li1+x+yAlxTi2−xSiyP3−yO12 glass in aqueous Li/air battery electrolytes

Ding

Shao

et al. 2012

Journal of Power Sources

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“…The carbon cloth was cut to 2.89 cm 2 and placed on the side of the membrane opposite the Pt containing carbon paper electrode. The fuel cell was assembled at 1.103 MPa (160 psi) using solid PTFE gaskets to prevent over-compression and with the membrane electrode assembly placed between tantalum interdigitated flow fields (2.25 cm 2 flow area).…”

Section: Mwcnt Growth By Chemical Vapor Deposition (Cvd)-thementioning

confidence: 99%

Impact of Multi-Walled Carbon Nanotube Fabrication on Carbon Cloth Electrodes for Hydrogen-Vanadium Reversible Fuel Cells

Tenny

Lakhanpal

Dowd

et al. 2017

J. Electrochem. Soc.

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The surface area of carbon electrodes in redox flow batteries and fuel cells governs the rates of electrochemical reactions. Carbon cloth electrodes offer greater durability and serve as a potential substitute for conventional carbon paper electrodes. Growing multi-walled carbon nanotubes (MWCNTs) on carbon cloth electrodes is an effective way to increase the surface area and overall performance of these devices. In this study, electrodeposited cobalt nanoparticles were used as seed catalysts to synthesize MWCNTs onto carbon cloth through chemical vapor deposition. Scanning electron microscopy and energy dispersive X-ray analysis confirmed cobalt deposition and uniform MWCNT growth throughout the carbon cloth electrode. The MWCNT cloth, MWCNT paper, and plain carbon cloth were tested in a 3-electrode electrochemical arrangement and a hydrogen-vanadium reversible fuel cell to determine surface enhancement factors and fuel cell performances, respectively. The MWCNT cloth and MWCNT paper have 2-3 times the surface area of their respective conventional substrates. The hydrogen-vanadium reversible fuel cell with MWCNT carbon cloth electrode has a peak power performance of 0.61 W mg −1 cm −2 , compared to 0.54 W mg As the demand for energy continues to rise, there is a desire for clean, efficient energy production and storage. While renewables, such as solar and wind, are promising alternative energy technologies, their inherent intermittencies inhibit grid-scale, market penetration without low-cost energy storage technology. Therefore, electrochemical devices, such as redox flow batteries, have gained much attention for their ability to convert electrical energy directly to chemical energy for storage.

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“…It's one of the most noble gases used for plasma surfaces treatment [10,11]. Moreover, modeling argon plasma is still relevant, because of the simplicity of the chemical reactions that occur in the discharge, in order to test the different models developed with the aim of getting more models effective [12,13].…”

Section: Introductionmentioning

confidence: 99%

Pressure and Free Flight Time Effects on Glow Discharge Characteristics

Bouanaka¹,

Rebiai²

2013

IJCA

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In this work, a model for a DC glow discharge at low pressure, used in many applications has been developed. This model allows the determination of plasma characteristics distributions in 2D geometry. The proposed theoretical model is applied to collisional argon plasma at low pressure in a reactor consisting of two plane parallel electrodes where the cathode is heated to a voltage of -250 V. The proposed code is based on solving the continuity equation coupled with Poisson's equation and electrons mean energy's equation. The particles trajectories simulation requires the knowledge of all collisional processes through their collision cross sections. The probability of collision during a free flight time can not be known without performing integrations of non-analytical cross sections. The proposed solution to this problem consists in the application of the "null collision" concept. The simulation results are shown in terms of spatial distribution of charged particles, potential, electric field, electrons energy and velocity. The study of the pressure (0.1-1Torr) and the free flight time (5.11x10 -9 to 1.46 x10 -7 s) effect, on the plasma characteristics, confirms the validity of this model

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Surface modification of carbon electrodes using an argon plasma

Cited by 18 publications

References 11 publications

H+ diffusion and electrochemical stability of Li1+x+yAlxTi2−xSiyP3−yO12 glass in aqueous Li/air battery electrolytes

H+ diffusion and electrochemical stability of Li1+x+yAlxTi2−xSiyP3−yO12 glass in aqueous Li/air battery electrolytes

Impact of Multi-Walled Carbon Nanotube Fabrication on Carbon Cloth Electrodes for Hydrogen-Vanadium Reversible Fuel Cells

Pressure and Free Flight Time Effects on Glow Discharge Characteristics

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