caa a22 4500 475843754 CHVBK 20180406123908.0 cr unu---uuuuu 170329e20000401xx s 000 0 eng 10.1023/A:1027283427485 doi (NATIONALLICENCE)springer-10.1023/A:1027283427485 Catalytic behavior of a novel SbRe2O6 compound in the selective oxidation of isobutylene: the key role of the cooperation between Sb4Re2O13 and Re2O7 [Elektronische Daten] [Eric Gaigneaux, Haichao Liu, Hideo Imoto, Takafumi Shido, Yasuhiro Iwasawa] The catalytic performance of a novel SbRe2O6 compound has been investigated in the selective oxidation of isobutylene to methacrolein at 673 K. The initial reactivity of the catalyst strongly depended on catalyst pretreatment conditions. The catalyst was more active after pretreatments under more oxidative atmospheres. However, the activity of the catalyst always reached an identical level at the steady state, independent of the pretreatment conditions. Scanning electron microscopy and in situ confocal Raman microscopy revealed that the reactivity of SbRe2O6 was attributable to the presence at its surface of Re2O7 which benefitted from a cooperation with Sb4Re2O13. The two phases resulted from a partial decomposition of SbRe2O6 in the presence of oxygen. When deposited on Sb4Re2O13, Re2O7 was stabilized and did not volatilize under the reaction conditions. The phenomenon is likely the origin of the cooperation between Sb4Re2O13 and Re2O7. Kluwer Academic Publishers, 2000 antimony rhenium mixed oxide nationallicence selective oxidation of isobutylene to methacrolein nationallicence confocal Raman microscopy nationallicence scanning electron microscopy nationallicence Gaigneaux Eric Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut Liu Haichao Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut Imoto Hideo Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut Shido Takafumi Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut Iwasawa Yasuhiro Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 11-12/1-4(2000-04-01), 185-193 1022-5528 11-12:1-4<185 2000 11-12 11244 https://doi.org/10.1023/A:1027283427485 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1023/A:1027283427485 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Gaigneaux Eric Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut NATIONALLICENCE 700 1- Liu Haichao Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut NATIONALLICENCE 700 1- Imoto Hideo Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut NATIONALLICENCE 700 1- Shido Takafumi Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut NATIONALLICENCE 700 1- Iwasawa Yasuhiro Department of Chemistry, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, 113, Tokyo, Japan aut NATIONALLICENCE 773 0- Topics in Catalysis Kluwer Academic Publishers-Plenum Publishers 11-12/1-4(2000-04-01), 185-193 1022-5528 11-12:1-4<185 2000 11-12 11244 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer