文献类型：期刊文献

英文题名：Insight into the role of PEG on Mo-Bi based catalyst in isobutene selective oxidation to methacrolein

作者：Gu, Jia[1,2];Xu, Renshun[1];Tian, Chenxi[1];Xie, Jianguo[1];Liu, Dianhua[2];Lv, Jianning[1]

机构：[1]Wison Engn Ltd, Adv Technol Res Inst, Shanghai, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Chem Engn, Shanghai, Peoples R China

年份：2022

卷号：517

外文期刊名：MOLECULAR CATALYSIS

收录：;EI(收录号：20215211405468);WOS:【SCI-EXPANDED(收录号:WOS:000737842500004)】；

语种：英文

外文关键词：Selective oxidation; PEG-assisted hydrothermal synthesis; Methacrolein; Isobutene

摘要：Mo-Bi based catalyst has been synthesized by PEG-assisted hydrothermal method, and tested in selective oxidation of isobutene to methacrolein (MAL). It is found that the catalysts assisted by PEG exhibited higher selectivity and yield of MAL in oxidation of isobutene. To investigate the role of PEG on Mo-Bi based catalyst, a series of MoBiFeCoCeCs mixed oxide catalysts were prepared by PEG-assisted hydrothermal method. By combining the characterization of Mo-Bi based catalyst obtained by using X-ray diffraction (XRD) patterns, N-2 physisorption measurements, Fourier transform infrared spectroscopy (FT-IR), NH3 temperature-programmed desorption (NH3-TPD) measurements, X-ray photoelectron spectroscopy (XPS), X-ray fluorescence (XRF) spectroscopy and scanning electron microscope (SEM), it was verified that the assistance of PEG could change metal composition and states, inhibit agglomeration of particles and adjust acidity of catalyst. Our finding may suggest the relationship of selective oxidation of isobutene with Mo-Bi based catalysts.