Abstract
The selective oxidation of cyclohexane to cyclohexanol, cyclohexanone and adipic acid using molecular oxygen as the oxidant and at moderate temperatures (403 K) has been investigated over four different cobalt‐containing aluminophosphate (AlPO) molecular sieves. There is a correlation between catalytic activity and the fraction of (framework) Co(II) ions that is first oxidised to Co(III) in air. CoAlPO‐36 (pore aperture 6.5 x 7.5 Å) exhibits significant activity for the oxidation of cyclohexane in contrast to CoAlPO‐18, which, although it has the highest fraction of oxidisable cobalt, does not show any activity chiefly because of its smaller pores.
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References
D.E. Danly and C.R. Campbell, Kirk Othmer Encyclopaedia of Chemical Technology, Vol. 1, eds. H.F. Market al., 3rd Ed. (Wiley, New York, 1979) p. 510.
K.I. Zamaraev, J. Mol. Catal. 82 (1993) 275.
T. Maschmeyer, R.D. Oldroyd, G. Sankar, J.M. Thomas, I.J. Shannon, J.A. Klepetko, A.F. Masters, J.K. Beattie and C.R.A. Catlow, Angew. Chem. Int. Ed. Engl. 36 (1997) 1639.
D.H.R. Barton, F. Halley, N. Ozbalik, M. Schmilt, E. Young and G. Balavoine, J. Am. Chem. Soc. 111 (1989) 7144.
I.W.C.E. Arends, R.A. Sheldon, M. Wallau and U. Schuchardt, Angew. Chem. Int. Ed. Engl. 36 (1997) 1144.
R. Raja and P. Ratnasamy, Catal. Lett. 48 (1997) 1 and references therein.
D. Mansuy, Pure Appl. Chem. 62 (1990) 741.
R. Raja and J.M. Thomas, submitted.
R. Raja, G. Sankar, J.M. Thomas and R.G. Bell, in preparation.
R. Raja, G. Sankar, J.M. Thomas and R.G. Bell, in: Recent Reports of the 12th International Zeolite Conference, Baltimore, USA, July 1998.
P.A. Barrett, G. Sankar, C.R.A. Catlow and J.M. Thomas, J. Phys. Chem. 100 (1996) 8977; J. Chen and J.M. Thomas, J. Chem. Soc. Chem. Commun. (1994) 603.
J.M. Thomas, G.N. Greaves, G. Sankar, P.A. Wright, J. Chen, A.J. Dent and L. Marchese, Angew. Chem. Int. Ed. Engl. 33 (1994) 1871; P.A. Barrett, G. Sankar, C.R.A. Catlow and J.M. Thomas, J. Phys. Chem. Solids 56 (1995) 1395.
J.M. Thomas, J. Chem. Soc. Faraday Discuss. 105 (1996) 1.
J. Chen, G. Sankar, J.M. Thomas, R. Xu, G.N. Greaves and D. Waller, Chem. Mater. 4 (1992) 1373.
L.E. Iton, I. Choi, J.A. Desjadins and V.A. Maroni, Zeolites 9 (1989) 535.
B. Kraushaar-Czarnetzki, W.G.M. Hoogervorst, R.R. Andrea, C.A. Emeis and W.H.J. Stork, J. Chem. Soc. Faraday Trans. 87 (1991) 891.
C. Montes, M.E. Davis, B. Murray and M. Narayana, J. Phys. Chem. 94 (1990) 6425.
S.S. Lin and H.S. Weng, Appl. Catal. A 84 (1994) 1869.
P. Grandvallet, K.P. de Jong, H. Mooiweer, A.T. Kortbeek and B. Kraushaar-Czarnetzki, Eur. Patent Appl. No. 501 577 A1 (1992); W.G.M. Hoogervorst and W.H.J. Stork, Stud. Surf. Sci. Catal. 84 (1994) 1869.
D.L. Vanoppen, D.E. De Vos, M.J. Genet, P.G. Rouxhet and P.A. Jacobs, Angew. Chem. Int. Ed. Engl. 34 (1995) 560.
P.A. Wright, S. Natarajan, J.M. Thomas, R.G. Bell, P.L. Gai-Boyes, R.H. Jones and J.S. Chen, Angew. Chem. Intl. Ed. Engl. 31 (1992) 1472.
A.J. Dent, M. Oversluizen, G.N. Greaves, M.A. Roberts, G. Sankar, C.R.A. Catlow and J.M. Thomas, Physica B 209 (1995) 253.
L. Marchese, J.S. Chen, J.M. Thomas, S. Coluccia and A. Zecchina, J. Phys. Chem. 98 (1994) 13350.
J. Chen, J.M. Thomas and G. Sankar, J. Chem. Soc. Faraday Trans. 90 (1994) 3455.
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Sankar, G., Raja, R. & Thomas, J.M. Redox solid catalysts for the selective oxidation of cyclohexane in air. Catalysis Letters 55, 15–23 (1998). https://doi.org/10.1023/A:1019093703743
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DOI: https://doi.org/10.1023/A:1019093703743