caa a22 4500 475843290 CHVBK 20180406123906.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1023/A:1027287528394 doi (NATIONALLICENCE)springer-10.1023/A:1027287528394 Solid-state reactivity of iron molybdate artificially contaminated by antimony ions and its relation with catalytic activity in the selective oxidation of isobutene to methacrolein [Elektronische Daten] [Yan Xiong, Luis Cadus, Loreto Daza, Patrick Bertrand, Jean Ladrière, Patricio Ruiz, Bernard Delmon] Catalysts were prepared by impregnation of Fe2(MoO4)3 with different quantities of antimony butoxide. BET surface area measurement, XRD, Mössbauer spectroscopy, CTEM-AEM, XPS and ISS were used to characterize phase and surface architectures and their changes after calcination and catalytic reaction. Before calcination, antimony was present as pure oxide or hydroxide, partly as particles and partly as an incomplete monolayer on the surface of Fe2(MoO4)3. After calcination at 400°C, antimony got detached from the Fe2(MoO4)3 surface and aggregated very intensively, partly as Sb2O4 and partly, through reaction with the iron molybdate, as a mixture of distorted FeSbO4 and MoO3. After reaction or calcination at 500°C, more distorted FeSbO4 and MoO3 are formed, separated from Fe2(MoO4)3. Selective oxidation of isobutene to methacrolein was carried out on the calcined material. Impregnated catalysts show considerably improved catalytic performances compared to the pure Fe2(MoO4)3 phase or mechanical mixtures of it with α-Sb2O4. The catalytic performances are explained by several catalytic cooperations via spillover oxygen. These cooperative effects involve all the oxide phases present in the material having worked as catalyst: Fe2(MoO4)3 (pure or possibly contaminated by small amounts of antimony oxide), FeSbO4, MoO3 and SbyOx. Kluwer Academic Publishers, 2000 iron-molybdenum-antimony catalysts nationallicence solid-state reactions in catalysts nationallicence Xiong Yan Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut Cadus Luis Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut Daza Loreto Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut Bertrand Patrick Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut Ladrière Jean Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut Ruiz Patricio Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut Delmon Bernard Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 11-12/1-4(2000-04-01), 167-180 1022-5528 11-12:1-4<167 2000 11-12 11244 https://doi.org/10.1023/A:1027287528394 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1027287528394 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Xiong Yan Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut NATIONALLICENCE 700 1- Cadus Luis Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut NATIONALLICENCE 700 1- Daza Loreto Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut NATIONALLICENCE 700 1- Bertrand Patrick Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut NATIONALLICENCE 700 1- Ladrière Jean Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut NATIONALLICENCE 700 1- Ruiz Patricio Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut NATIONALLICENCE 700 1- Delmon Bernard Unité de Catalyse et Chimie des Matériaux Divisés, Université Catholique de Louvain, Croix du Sud 2/17, B-1348, Louvain-la-Neuve, Belgium aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 11-12/1-4(2000-04-01), 167-180 1022-5528 11-12:1-4<167 2000 11-12 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer