Abstract
The methane coupling reaction was investigated over MnMoO4 and alkali (Li, Na, K)-promoted MnMoO4 at 700°C using12CH4/13CH4 transient isotopic labeling experiments under steady-state reaction conditions. The variations observed in the surface residence times of CH4, CO, and CO2, ethane and ethylene were used to help explain selectivity differences previously reported in the oxidative coupling of methane over alkali-promoted molybdate catalysts.
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
S.A. Driscoll, L. Zhang and U.S. Ozkan, in:Catalytic Selective Oxidation, Vol. 523, eds. S.T. Oyama and J.W. Hightower (American Chemical Society, Washington, 1993) p. 340.
G.E. Keller and M.M. Bhasin, J. Catal. 73 (1982) 9.
T. Ito and J.H. Lunsford, Nature 314 (1985) 721.
D.J. Driscoll, W. Martir, J.X. Wang and J.H. Lunsford J. Am. Chem. Soc. 107 (1985) 58.
J.H. Lunsford, M.D. Cisneros, P.G. Hinson, Y. Tong and H. Zhang, Faraday Discussions Chem. Soc. 87 (1989) 13.
G.W. Keulks and M. Yu, in:New Developments in Selective Oxidation, eds. G. Centi and F. Trifiró (Elsevier, Amsterdam, 1990) p. 427.
C. Shi, M. Xu, M.P. Rosynek and J.H. Lunsford, J. Phys. Chem. 97 (1993) 216.
M. Hatano and J. Otsuka, J. Chem. Soc. Faraday Trans. 185 (1989) 199.
C. Mirodatos, A. Holmen, R. Mariscal and G.A. Martin, Catal. Today 6 (1990) 601.
C. Mirodatos, V. Ducarme, H. Mozzanega, A. Holmen, J. Sanches-Marcano and Q. Wu, in:Natural Gas Conversion, eds. A. Holmen et al. (Elsevier, Amsterdam, 1991) p. 41.
S.A. Driscoll and U.S. Ozkan, J. Phys. Chem. 97 (44) (1993) 11524.
K.P. Peil, J.G. Goodwin Jr. and G.J. Marcelin, J. Am. Chem. Soc. 112 (1990) 6129.
K.P. Peil, J.G. Goodwin Jr. and G.J. Marcelin, J. Phys. Chem. 93 (1989) 5977.
K.P. Peil, J.G. Goodwin Jr. and G.J. Marcelin, J. Catal. 131 (1991) 143.
K.P. Peil, J.G. Goodwin Jr. and G.J. Marcelin, J. Catal. 132 (1991) 556.
K.P. Peil, J.G. Goodwin Jr. and G.J. Marcelin, in:Natural Gas Conversion, eds. A. Holmen et al. (Elsevier, Amsterdam, 1991)p. 73.
A. Ekstrom and J.A. Lapszewicz, J. Am. Chem. Soc. 111 (1989) 8515.
A. Ekstrom and J.A. Lapszewicz, J. Phys. Chem. 93 (1989) 5230.
I. Matsuura and M. Kirishiki, Chem. Lett. (1986) 1441.
N.W. Cant, C.A. Lukey and P.F. Nelson, J. Catal. 124 (1990) 336.
J. Rasko, G.A. Somorjai and H. Heinemann, Appl. Catal. A 84 (1992) 57.
S.A. Driscoll, D. Gardner and U.S. Ozkan, J. Catal., accepted.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Driscoll, S.A., Gardner, D.K. & Ozkan, U.S. Transient isotopic labeling studies using12CH4/13CH4 over alkali-promoted molybdate catalysts in the oxidative coupling of methane. Catal Lett 25, 191–199 (1994). https://doi.org/10.1007/BF00816300
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00816300