caa a22 4500 606195351 CHVBK 20210128100919.0 cr unu---uuuuu 210128e20150601xx s 000 0 eng 10.1007/s10934-015-9933-9 doi (NATIONALLICENCE)springer-10.1007/s10934-015-9933-9 Metathesis of 1-butene and ethene to propene over mesoporous W-KIT-6 catalysts: the influence of Si/W ratio [Elektronische Daten] [Bin Hu, Chunrong Xiong, Kai Tao, Shenghu Zhou] Mesoporous W-KIT-6 catalysts with various Si/W ratios were prepared by one-pot direct hydrothermal reactions and were studied in metathesis of 1-butene and ethene to propene. The catalysts were characterized by N2 physical adsorption, XRD, TEM, UV-DRS, FTIR and Raman. The characterization results showed that tungsten species could be finely dispersed in the framework of KIT-6 at Si/W ratios higher than 25, while a large amount of bulk WO3 was present on W-KIT-6 catalyst with a Si/W ratio of 15. The 1-butene conversion and propene selectivity increased with the decreasing Si/W ratio from 80 to 25 due to more active tungsten oxides species generated, and then decreased when the Si/W ratio further declined to 15 caused by the formation of inactive bulk WO3. The optimal Si/W ratio was 25 for obtaining highly dispersed active W species and excellent catalytic performance. Springer Science+Business Media New York, 2015 One-pot synthesis nationallicence Mesoporous nationallicence KIT-6 nationallicence WO3 nationallicence Metathesis catalyst nationallicence Hu Bin Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, Zhejiang, China aut Xiong Chunrong College of Materials and Chemical Engineering, Hainan University, 570228, Haikou, Hainan, China aut Tao Kai Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, Zhejiang, China aut Zhou Shenghu Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, Zhejiang, China aut Journal of Porous Materials Springer US; http://www.springer-ny.com 22/3(2015-06-01), 613-620 1380-2224 22:3<613 2015 22 10934 https://doi.org/10.1007/s10934-015-9933-9 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s10934-015-9933-9 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Hu Bin Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, Zhejiang, China aut NATIONALLICENCE 700 1- Xiong Chunrong College of Materials and Chemical Engineering, Hainan University, 570228, Haikou, Hainan, China aut NATIONALLICENCE 700 1- Tao Kai Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, Zhejiang, China aut NATIONALLICENCE 700 1- Zhou Shenghu Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, 315201, Ningbo, Zhejiang, China aut NATIONALLICENCE 773 0- Journal of Porous Materials Springer US; http://www.springer-ny.com 22/3(2015-06-01), 613-620 1380-2224 22:3<613 2015 22 10934