Michiel Dusselier, (KU Leuven), donnera un séminaire le jeudi 07 Juin à 15h30, dans la grande salle du CNRT
Abstract
Zeolites are well-known and durable catalysts in petrochemical and refinery operations. In the catalytic conversion of bio-derived molecules, or the conversion of (natural) gas, these microporous materials have a role to play as well.[1]Two topics will be discussed to demonstrate the importance of adapting zeolite technology (incl. synthesis) to the development of sustainable processes. The first will be in the context of bioplastics.[2]The synthesis route from sugars to certain polyester plastics is inefficient and I will demonstrate how (petrochemical) zeolite concepts can be successfully introduced to overcome some of the barriers in this field (BEA).[3]In the second part, the focus will be put on the synthesis of zeolites itself,[4]this time in the context of the methanol-to-olefins reaction (MTO). This reaction, known since the 1980s, is getting industrially implemented at high speed. The commercial catalyst is a silicoaluminophosphate, but small-pore aluminosilicates (e.g. SSZ-39, AEI) could become significant competitors, especially when considering that such zeolites are being commercialized for the selective catalytic reduction of NOx in exhaust gas.[5]In general, small-pore zeolite are increasingly in the spotlight and an overview of their synthesis and catalytic chemistry will be given, as detailed in our recent review paper[6]. Finally, it will be shown how studying the synthesis of AEI led to the discovery of a new route to the elusive GME zeolite. The new material, CIT-9, is fault-free and its synthesis presents a truly unique case of conditional and isomeric cis/trans sensitivity related to the organic structure directing agent.[7]
[1] P. A. Jacobs, M. Dusselier, B. F. Sels, Angew. Chem. Int. Ed. 2014, 53, 8621-8626.
[2] M. Dusselier, P. Van Wouwe, A. Dewaele, E. Makshina, B. F. Sels, Energy Environ. Sci. 2013, 6, 1415-1442.
[3] M. Dusselier, P. Van Wouwe, A. Dewaele, P. A. Jacobs, B. F. Sels, Science 2015, 349, 78-80.
[4] M. Dusselier, J. E. Schmidt, R. Moulton, B. Haymore, M. Hellums, M. E. Davis, Chem. Mater. 2015, 27, 2695-2702.
[5] M. Dusselier, M. A. Deimund, J. E. Schmidt, M. E. Davis, ACS Catal. 2015, 5, 6078-6085.
[6] M. Dusselier, M.E Davis, Chem. Rev.2018,DOI: 10.1021/acs.chemrev.7b00738
[7] M. Dusselier, J.-H. Kang, D. Xie, M. E. Davis, Angew. Chem. Int. Ed. 2017, 56, 13475-13478BIO:
Michiel Dusselier has a MSc in Bioscience Engineering (KU Leuven, 2009) and studied in part at the Technische Universität München. He obtained his Ph.D. in 2013 under the guidance of Profs. Sels and Pierre Jacobs on the topic of tailoring catalytic routes toward lactic acid and biobased plastics, resulting in a patented new process, now sold to industry. In 2014–15, he performed postdoctoral work with Prof. Mark Davis at the California Institute of Technology, studying the synthesis of small-pore zeolites, the elusive GME zeolite and methanol conversion. He is an honorary fellow of the Belgian American Educational Foundation and secretary of the Dutch Zeolite Association. He has published 40 academic papers, including in Science, Angew. Chem., J. Am. Chem. Soc, Chem. Rev., Energy Environ. Sci. and deposited 6 patents. His work has been recognized by several prizes, including the ACS Breen memorial award in 2013, the 2016 Incentive Award of the Belgian Chemical societies ft. ChemPubSoc and the EOS Pipet of 2016 (most promising young researcher Flanders). He has recently been appointed to research Professor at KU Leuven in a tenure track. His current interests reside in zeolite synthesis, small-molecule catalysis and bioplastics.
