ISSN:
1662-9779
Source:
Scientific.Net: Materials Science & Technology / Trans Tech Publications Archiv 1984-2008
Topics:
Physics
Notes:
α-Bi2Mo3O12 and γ-Bi2MoO6 catalysts were prepared by co-precipitation method, and theywere applied to the oxidative dehydrogenation of n-butene into 1,3-butadiene in a continuous flowfixed-bed reactor. Formation of α-Bi2Mo3O12 and γ-Bi2MoO6 catalysts was well confirmed by XRD,Raman spectroscopy, and ICP-AES analyses. The γ-Bi2MoO6 catalyst exhibited a better catalyticperformance than the α-Bi2Mo3O12 catalyst. Catalytic performance of γ-Bi2MoO6 strongly dependedon the pH value used in the co-precipitation step. It was also revealed that a mixed catalyst comprisingγ-Bi2MoO6 (90 wt%) and small amount of α-Bi2Mo3O12 (10 wt%) showed the best catalyticperformance due to the synergy effect of two components. It is believed that the high catalyticperformance of the mixed catalyst resulted from high diffusion coefficient of lattice oxygen in theγ-Bi2MoO6 and from abundant chemisorption sites for n-butene in the α-Bi2Mo3O12
Type of Medium:
Electronic Resource
URL:
http://www.tib-hannover.de/fulltexts/2011/0528/02/23/transtech_doi~10.4028%252Fwww.scientific.net%252FSSP.119.251.pdf
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