Abstract
The micro gravity effect on the product selectivity of electrochemical reduction of CCl2 F2 (CFC-12) was studied using the metal supported gas diffusion electrodes (GDEs). Under the micro gravity, the current efficiency for methane formation (the final product) increased, whereas that for CHClF2formation (a intermediate product) decreased at the Cu-supported GDE compared with the result under the normal gravity. This result suggests that the convection has an influence on the product selectivity for electrochemical reaction.
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Nakabayashi, S.;Ushizaka, J.;Yanagida, M.;Uosaki, K.; Electrochemical measurements under micro-gravity conditions; Diffusion limited reaction observed by potential step experiment. J. Electroanal. Chem. vol.358, p.333 (1993).
Wopersnow, W.;Raub, C. J.; Electrolytical Hydrogen Generation under Zero Gravity. Z. Flugwiss. Weltraumforsch, vol. 2, p341 (1978)
Kaneko, H.;Tanaka, K.;Iwasaki, A.;Abe, Y.;Negishi, A.;Kamimoto, M.: Water electrolysis under microgravity condition by parabolic flight. Electrochem. Acta, vol. 38, p.729 (1993).
Motoo, S.;Watanabe, M.;Furuya, N: Gas diffusion electrode of high performance. J. Electroanal.Chem. vol. 160, p.351 (1984).
Cook, R. L.;Mac Duff, R. C.;Sammells, A. F.: High Rate Gas Phase CO2 Reduction to Ethylene and Methane Using Gas Diffusion Electrodes. J.Electrochem.Soc., vol.137, p. 607 (1990).
Konishi, N.;Hara, K.;Kudo, A.;Sakata, T.: Electrochemical Reduction of N2O on Gas-Diffusion Electrodes., Bull.Chem.Soc.Jpn. vol. 69, p. 2159 (1996).
Hara, K.; Kudo, A.; Sakata, T.; Watanabe, M.; High Efficiency Electrochemical Reduction of Carbon Dioxide under High Pressure on a Gas Diffusion Electrode Containing Pt Catalysts., J. Electrochem. Soc. vol. 142, p. L57 (1995).
Hara, K.;Sonoyama, N.;Sakata, T.: Electrocatalytic Fischer-Tropsch Reactions. Formation of Hydrocarbons and Oxygen-Containing Compounds from CO on a Pt Gas Diffusion Electrode., Bull.Chem.Soc.Jpn vol. 70, p. 745 (1997).
Sonoyama, N.;Sakata, T.: Electrochemical Decomposition of CFC-12 using Gas Diffusion Electrodes. Environ. Sci. Technol., vol. 32, p.375 (1998).
Sonoyama, N.;Sakata, T.: Electrochemical Hydrogenation of CFC-13 using Gas Diffusion Electrodes. Environ. Sci. Technol., vol. 32, p.4005 (1998).
Sonoyama, N.; Fujii. H.; Sakata, T.: Electrochemical Hydrogenation of CFC-12 at Metal-Phthalocyanine Supported Gas-Diffusion Electrodes., J. Electrochem. Soc. vol. 149, p. D182.
Sonoyama, N.;Sakata, T.: Electrochemical Hydrogenation of Chlorodifluoromethane (HCFC-22) at Metal- and Metal — phthalocyanine-supported Gas Diffusion Electrodes., Adv. Environ. Res., vol. 8, p. 287 (2004).
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Sonoyama, N. Effect of micro gravity on the product selectivity of dichlorodifluoromethane electrolysis at metal supported gas diffusion electrodes. Microgravity Sci. Technol 19, 22–24 (2007). https://doi.org/10.1007/BF02870985
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DOI: https://doi.org/10.1007/BF02870985