Carbon cloth

Product Hterature on activated carbon cloth. Charcoal Cloth Ltd., UK, 1985, and on C-tex products, Siebe Gorman Co., Ltd., UK, 1985. 

Fig. 3. A model integrated adsorption/electrothermal regeneration/cryogenic vapor recovery system for volatile organic compounds [91]. Reprinted from Gas Sep. Purif, Volume 10, Lordgooei, M., Carmichael, K. R., Kelly, T. W., Rood, M. J. and Larson, S. M., Activated carbon cloth adsorption cryogenic system to recover toxic volatile organic compounds, pp. 123-130, Copyright 1996, with permission from Elsevier Science.

Kumar, K., Saxena, R. K., Kothari, R., Suri, D. K., Kaushik, N. K. and Bohra, J. N., Correlation between adsorption and x -ray diffraction studies on viscose rayon-based activated carbon cloth. Carbon, 1997, 35(12), 1842 1844. 

Polovina, M., Babic, B., Kaluderovic, B. and Dekanski, A., Surface characterization of oxidized activated carbon cloth. Carbon, 1997, 35(8), 1047 1052. 

Dimotakis, E. D., Cal, M. P., Economy, J., Rood, M. J. and Larson, S. M., Chemically treated activated carbon cloths for removal of volatile organic carbons from gas streams - evidence for enhanced physical adsorption. Environ. Sci. Technol., 1995, 29(7), 1876 1880. 

Ilic, M. R., Jovanic, P. B., Radosevic, P. B. and Rajakovic, L. V., Sorption of hydrogen cyanide onto activated carbon cloth impregnated with metallo-organic compounds, Sep. Sci. Technol., 1995, 30(13), 2707 2729. 

Piskin, E. and Atac, A. G., Glow discharge modified activated carbon cloths as skin substitutes, / Bionted. Mater. Res., 1996, 30(4), 493 499. 

The catalytic-electrocatalytic reactor consists of a membrane electrode assembly, such as Pt-black/Nafion/Pd/C sandwiched between sheets of porous carbon cloth, housed in a fuel cell assembly. 

The catalyst inks were prepared by dispersing the catalyst nanoparticles into an appropriate amoimt of Millipore water and 5wt% Nafion solution. Then, both the anode and cathode catalyst inks were directly painted using a direct painting technique onto either side of a Nafion 117 membrane. A carbon cloth diffusion layer was placed on to top of both the anode and cathode catalyst layers [3-5]. The active cell area was 2.25cm. ... 

In practice, the catal5Tic layers are prepared by brushing or spraying catalyst ink (a suspension of the catalyst particles in water and/or an organic solvent with addition of ionomer) either onto diffusion media (carbon paper or carbon cloth, also referred to as substrates), resulting in so-called catalyst-coated substrates (CCS), or directly onto... 

Be careful to keep track of which side is the active side of the catalyst impregnated carbon cloth. The active side has more of the carbon-platinum binder powder and is smoother. 

Carbon Industries, a subsidiary of Messier-Bugatti Co., is acknowledged for the supply of activated carbon cloths. 

Activated carbon cloth of 1-1.1 mm thickness was used as the initial material for most of experiments. Ribbon, made of carbon cloth, was soaked in the solution with 40wt% KOH and 10 g-1-1 LiOH for 72 hours, and afterwards, was cut into electrodes of the appropriate dimensions. Electrolyte surplus was removed by pressing. 

Figure 2. Galvanostatic charge/discharge of the as-received carbon cloth outgassed at 150°C under vacuum.

Figure 3. Galvanostatic charge/discharge of the carbon cloth outgassed 24 hours under vacuum at 900°C.

For our experiments, a carbon fiber cloth (Figure 3 a) was prepared by carbonization of viscose under neutral atmosphere for 15 minutes, successively at 400, 700 and 1000°C. The carbon cloth was coated with pyrolytic carbon, using chemical vapor decomposition of propylene (2.5 ml/mn) diluted in nitrogen (100 ml/mn) during 10 minutes at 900°C. The resulting composite carbon material exhibits a very low irreversible capacity and 1.5 times the reversible capacity of graphite9 11. 

Figure 3. Images of a cross-section of carbon fibers after propylene pyrolysis. 3a Scanning Electron Microscopy of a piece of the carbon cloth. 3b optical microscopy (crossed polarizers with a wave retarding plate).

The products of electrochemical oxidation of conjugated dienes are considerably affected by the reaction conditions such as the material of the electrode, the supporting electrolyte and the solvent. The oxidation of butadiene with a graphite or carbon-cloth anode in 0.5 M methanolic solution of NaClCU mainly yields dimerized products along with small amounts of monomeric and trimeric compounds (equation 5)1. The use of platinum or glassy carbon mainly gives monomeric products. Other dienes such as isoprene, 1,3-cyclohexadiene, 2,4-hexadiene, 1,3-pentadiene and 2,3-dimethyl-l,3-butadiene yield complex mixtures of isomers of monomeric, dimeric and trimeric compounds, in which the dimeric products are the main products. 

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