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Nickel Catalyzed Conversion of Activated Carbon into Porous Silicon Carbide

  • R. Moene (a1), J. Schoonman (a2), M. Makkee (a1) and J. A. Moulijn (a1)

Abstract

High surface area silicon carbide (SiC) of 31 m2/g has been synthesized by the catalytic conversion of activated carbon. The thermal stability in non-oxidizing environments is shown to be excellent; no significant sintering has been observed after ageing in nitrogen for 4 hours at 1273 K. The presence of 2v% steam or the use of air results in SiC oxidation into SiO2 and considerable sintering at 1273 K. Air oxidation of SiC is shown to cause substantial SiC conversion, viz. 60 % after 10 hours at 1273 K. Complete conversion is achieved at 1080 K in about 100 days. This rate of oxidation agrees with reports on the oxidation of non-porous Acheson SiC and Chemical Vapour Deposited SiC coatings. The use of SiC based catalysts is, therefore, limited to (1) high temperature gas phase reactions operating in the absence of oxidizing constituents (O2 or H2O) and (2) liquid phase processes at demanding pH. Syntheses of highly dispersed and highly loaded Ni/SiC catalysts are feasible by applying an ion-exchange technique, resulting in supported nickel particles of 4 nm.

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1. Vannice, M.A., Yu-Lin, Chao, and Friedman, R.M., Appl. Catal. 20, 91 (1986).
2. Ledoux, M.J., Hantzer, S., Pham-Huu, C., Guille, J., and Desaneaux, M.P., J. Catal., 114 (1988) 176.
3. White, D.A., Oleff, S.M., and Fox, J.R., Adv. Ceram. Mater. 2, 53 (1987).
4. Moene, R., Kramer, L.F., Schoonman, J., Makkee, M., and Moulijn, J.A. in Scientific bases for the Preparation of Heterogeneous Catalysts VI, Louvain-la-Neuve, preprints, vol 1, 1994, p. 379.
5. Moene, R., unpublished results.
6. Boutonnet-Kizling, M., Stenius, P., Andersson, S., and Frestad, A., Appl. Catal. B 1, 149 (1992).
7. Pham-Huu, Cuong, Marin, S., Ledoux, M.J., Weibel, M., Ehret, G., Benaissa, M., Peschiera, E., and Guille, J., Appl. Catal. B 4, 45 (1994).
8. Zwinkels, M.F.M., Järesearch-articleås, S.G., Govind, P.G., and Griffin, T.A., Catal. Rev. -Sci. Eng. 35, 319 (1993).
9. Lednor, P.W. and Ruiter, R. de, in Inorganic and Metal-Containing Polymeric Materials, Sheets, J.E., Carraher, C.E., Pittman, C.U., Zeldin, M., and Currel, B. (eds.), Plenum, New York, 1990, p. 187.
10. Pugh, R.J., J. Coll. Interface. Sci. 138, 16 (1990).
11. Zheng, Z., Tressler, R.E., and Spear, K.E., J. Electrochem. Soc. 137, 854 (1990).
12. Philipuzzi, L., Naslain, R., and Jaussaud, C., J. Mater. Sci. 27, 3330 (1992).
13. Perry's Chemical Engineer's Handbook, Perry, R.H. and Green, D. eds., 6th ed., 1984, McGraw-Hill, New York, p. 49.
14. Clause, O., Bonneviot, L., and Che, M., J. Catal. 138, 195 (1992).

Nickel Catalyzed Conversion of Activated Carbon into Porous Silicon Carbide

  • R. Moene (a1), J. Schoonman (a2), M. Makkee (a1) and J. A. Moulijn (a1)

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