Selective oxidation over

Yamada, Y., Ueda, A., Zhao, Z. et al. (2001) Rapid evaluation of oxidation catalysis by gas sensor system total oxidation, oxidative dehydrogenation, and selective oxidation over metal oxide catalysts. Catal. Today, 67, 379. 

C. R. Jacob, S. R. Varkey, and R. Ratnasamy, Selective oxidation over copper and manganese salens encapsulated in zeolites, Microporous Mesoporous Mater. 22, 465 74 (1998). 

Figure 3.21. (a) Butane selective oxidation over VPO to maleic anhydride (C4H2O3). Structures of (b) VOHPO4 O.5H2O (VHPO) and (c) (VO)2P207 (VPO). The [201] direction is arrowed. V-octahedra and P-tetrahedra are indicated at V and P, respectively. (d) A three-dimensional network of (010) VPO. [201] is arrowed. 

Although it was not suggested that defects are required for selective oxidation over other catalysts, the results indicated that defects and bismuth must be present for high activity and selectivity over scheelite-type catalysts. The authors concluded that the defects which were introduced into the bulk of these phases must manifest themselves in some manner at the surface. The question of how the introduction of defects into these phases affected their catalytic properties was not resolved. However, the active site for catalysis was suggested as a cation vacancy which could abstract a proton from an olefin to form the well-established allyl intermediate and should offer considerable stabilization to a surface hydroxyl group. 

Deactivation Effects in the Synthesis of Methyl Ethyl Ketone by Selective Oxidation over Solid Wacker-type Catalysts... 

Clearly two regions are observed one in which both short and long range order are present, and the region in which no or only short range order is observed. MA was the only product of selective oxidation over catalysts produced from Bo or Bi by via solution preparation route, i.e. starting precursor A with low content of water. Catalysts obtained by the via solid route produced by n-pentane oxidation both MA and PA and the PA/MA ratio was the highest for samples with the maximum of water used in the synthesis of precursor. 

Selective Oxidation over Micro- and Mesoporous Catalysts (Thursday)... 

Igarashi H., Uchida H., Suzuki M., Sasaki Y. and Watanabe M. 1997. Removal of carbon monoxide from hydrogen-rich fuels by selective oxidation over platinum catalyst supported on zeolite, Appl. Catal. A, 159, 159-169. 

While CuO provides an excellent illustration of the importance of active site isolation in selective oxidation over heterogeneous catalysts, it is not a practical catalyst since the small range of partially reduced states, required for selectivity, is difficult to maintain. A metal oxide catalyst which would operate selectively in a fully or nearly fully oxidized state would be a much more practical system. 

Selective Oxidations over AIPO4S Containing Redox-active Framework Cations... 

Vulpescu G. D., Ruitenbeek M., van Lieshout L. L., Correia L. A., Meyer D., Pex P. P. A. C. 2004. One-step selective oxidation over a Pd-based catalytic membrane Evaluation of the oxidation of benzene to phenol as a model reaction. Catalysis Communications 5 347-351. 

Zhidomirov GM, Larin AV, Trubnikov DN, Vercauteren DP (2009) Ion-exchanged binuclear clusters as active sites of selective oxidation over zeolites. J Phys Chem C 113 8258... 

Xue, Z.-Y., Schrader, G. L., 1999, Transient FTIR Studies of the Reaction Pathway for n-Butane Selective Oxidation over Vanadyl Pyrophosphate, J. Catal. 184, 87. 

Fig. 53. Conceptual mechanism proposed for CH4 selective oxidation over Fe-sodalite. Reproduced from Ref. (438).

Selective oxidation over Pt/alumina catalysts for fuel cell applications. Appl Catal. B., 37, 17-25. 

Marie Rose, S., Belin, T., Mijoin, J., et al. (2009). Destruction of PAH and dioxin precursors using selective oxidation over zeolite catalysts. Influence of the presence of ammonia in the flue gas, Appl. Catal. B Environ., 93, pp. 106-111. 

Mauti, R. and Mims, C. (1993). Oxygen Pathways in Methane Selective Oxidation over SUica-snpported Molybdena, Catal. Lett., 21, pp. 201-207. 

Vulpescu, G., Ruitenbeek, M., van Lieshout, L., et al. (2004). One-Step Selective Oxidation over a Pd-Based Catalytic Membrane Evaluation of the Oxidation of Benzene to Phenol as a Model Reaction, Catal. Common., 5, pp. 347-351. 

Finally, the results for the partial oxidation of propane are rather frustrating, as after two decades of intense study, the yields to acrylic acid have not been enhanced. In fact, the highest yield to acryUc acid in both the open and patent literature indicates a limit to the maximum yield which can he obtained, as specifically reported by Muller. This is a consequence of the Umitations of the reaction network in consecutive steps, with propylene as the primary reaction product, as indicated in Fig. 24.6. Accordingly, mayhe we should design catalysts by considering the model of -butane selective oxidation over VPO catalysts (Fig. 24.8), in which the olefinic intermediate was not desorhed and acrylic acid was directly formed as the primary reaction product. In this sense, new crystalline strucmres could be required in which active sites for propane activation and those for propylene oxidation were near enough to directly transform the propylene intermediate into acrylic... 

Vitry, D., Morikawa, Y, Dubois, J., et al. (2003). Propane Selective Oxidation over Monophasic Mo-V-Te-O Catalysts Prepared by Hydrothermal Synthesis, Top. Catal., 23, pp. 47-53. KendeU, S., Alston, A. and Brown, T. (2009). Kinetic Simulation of Methacrolein and Lactone Production from the Catalytic Oxidation of Isohutane over Lanthanide Phosphomolybdates, Chemical Product and Process Modeling, 4, pp. No pp given. 

Vitry, D., Dubois, J. and Ueda, W. (2004). Strategy in Achieving Propane Selective Oxidation over Multi-Functional Mo-Based Oxide Catalysts, J. Mol. Catal. A Chem., 220, pp. 67-76. 

Selective oxidations over structured foam catalysts... 

Selective oxidations over other structured catalysts... 

Pestryakov, A., Bogdanchikova, N. and Knop-Gericke, A. (2004). Alcohol Selective Oxidation over Modified Foam-Silver Catalysts, Catal. Today, 91-92, pp. 49-52. 

---