PROPYLENE SELECTIVE OXIDATION AS STUDIED BY O-18 LABELING ON WELL-DEFINED MOO3 CATALYSTS

被引:0
|
作者
ABON, M [1 ]
ROULLET, M [1 ]
MASSARDIER, J [1 ]
DELICHERE, P [1 ]
GUERRERORUIZ, A [1 ]
机构
[1] UNIV NACL EDUC DISTANCIA, FAC CIENCIAS, DEPT QUIM INORGAN, E-28040 MADRID, SPAIN
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F [经济];
学科分类号
02 ;
摘要
The propylene oxidation reaction has been studied using O-18(2) on well defined MoO3 crystallites. Results show that the information of products -acrolein and carbon dioxide- involves the lattice oxygen. The different O-18-labelling, according to selective or total oxidation products, agrees with the structure sensitivity of this reaction. Post reaction analysis (by LRS, SIMS, LEIS) support a redox equilibrium which determines the O-18 concentration in the surface layers.
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页码:67 / 74
页数:8
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