Journal
JOURNAL OF POROUS MATERIALS
Volume 26, Issue 3, Pages 869-880Publisher
SPRINGER
DOI: 10.1007/s10934-018-0684-2
Keywords
Hierarchical material; Molybdenum; PMMA spheres; Epoxidation; Linear olefin
Funding
- National Natural Science Foundation of China [31560185]
- public welfare projects of Zhejiang province [2016C32011]
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In this study, a novel Mo-containing hierarchical ordered macro-mesoporous material, Mo-MM-SBA-15-4-30, was synthesized via a facile dual-templating technique. The formation of a well-defined macro-mesoporous structure was verified by N-2 adsorption-desorption curves, SEM and TEM observations. Moreover, the characterization results of XPS, ICP-AES, EDX demonstrated the successful incorporation of molybdenum species into the bulk hierarchical macro-mesoporous material Mo-MM-SBA-15-4-30. A series of comparative studies revealed that this hierarchical macro-mesoporous material Mo-MM-SBA-15-4-30 exhibited higher catalytic activities for the epoxidation of linear -olefin than Mo-containing mesoporous silica. Turnover number of linear -olefins was also significantly enhanced due to the hierarchical macro-mesoporous structure of Mo-MM-SBA-15-4-30 in which the presence of mesoporous channels shortened diffusion limitation. Additionally, the catalyst Mo-MM-SBA-15-4-30 exhibits the excellent catalytic stability.
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