Abstract
The catalytic activity of Pd/Co3O4 toward methane oxidation has been examined in this study as a function of Pd loading, reaction temperature, space velocity and methane concentration in the reaction gas mixture. The bare oxide is quite active achieving a 100% methane conversion at 480°C under the reaction conditions used. The catalyst with the highest Pd loading tested of 10 wt.% yields the best activity curve, but the 5 wt.% Pd/Co3O4 catalyst performs nearly as well. Complete conversion for this catalyst is attained at 300°C and the activity remains stable over a 90-min test period.
Similar content being viewed by others
References
S. Subramaian, R.J. Kudla, M.S. Chattha:Ind. Eng. Chem. Res.,31, 2460 (1992).
C.F. Cullis, D.E. Keene, D.L. Trimm:J. Catal.,19, 378 (1970).
R. Burch, M.J. Hayes:J. Mol. Catal. A,100, 13 (1995).
J.H. Lee, D.L. Trimm:Fuel Process. Technol.,42, 339 (1995).
S.H. Oh, P.J. Mitchell, R.M. Siewert:J. Catal.,132, 287 (1991).
R.F. Hicke, H. Qi, M.L. Young, R.A. Ize:J. Catal.,122, 280 (1990).
R. Burch, F.J. Urbano:Appl. Catal.,A124, 121 (1995).
H. Hahn, H. Hesemann, W.S. Epling, G.B. Hoflund:Proc. Fall 1997 MRS Meeting: Recent Advances in Catalytic Materials (Eds N.M. Rodriguez, S.L. Soled, J. Hubek),497, 35 (1998).
P.J. Schmitz, K. Otto, J.E. Devries:Appl. Catal. A,92, 59 (1992).
K. Otto, L.P. Hack, J.E. Devries:Appl. Catal. B,1, 1 (1992).
K. Otto:Langmuir,5, 1364 (1989).
N. Mouaddib, C. Feumi-Jantou, E. Carbowski, M. Primet:Appl. Catal. A,87, 129 (1992).
F.H. Ribeiro, M. Chow, R.A. Della Betta:J. Catal.,146, 537 (1994).
W.S. Epling, S. Herth, G.B. Hoflund: to be published.
W.S. Epling, G.B. Hoflund:J. Catal., in press (1999).
E. Carbowski, C. Feumi-Jantou, N. Mouaddib, M. Primet:Appl. Catal. A,109, 277 (1994).
T.R. Baldwin, R. Burch:Appl. Catal.,66, 359 (1990).
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Li, Z., Hoflund, G.B. Catalytic oxidation of methane over Pd/Co3O4 . React Kinet Catal Lett 66, 367–374 (1999). https://doi.org/10.1007/BF02475814
Received:
Revised:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF02475814