HYBRID EVENT: You can participate in person at Orlando, USA or Virtually from your home or work.

Stanislaw Dzwigaj

Honorable Organizing Committee Member for Catalysis 2021 Conference -  Stanislaw Dzwigaj
Stanislaw Dzwigaj
Surface Reactivity Laboratory - Sorbonne University, France
Title : Design of Metal Single-Site Zeolites and their Application in Industrial and Enviromental Catalysis

Abstract:

We have earlier shown [1-2] that the incorporation of transition metal ions into vacant T-atom sites of framework zeolite is strongly favored when, in the first step, zeolite is dealuminated by treatment with nitric acid solution and then, in the second step, the incorporation of transition metal ions results in the reaction between the cationic metal species of the precursor solution and the SiO-H groups of vacant T-atom sites created by dealumination of zeolite.

During the talk the design of new single-site heterogeneous zeolite catalysts with transition metal species will be described and characterized by different physical techniques both at the macroscopic level (chemical analysis, XRD, BET, thermal methods (TPR, TPD), TEM) and molecular level (FT-IR, NMR, diffuse reflectance UV-Vis, XPS, EPR, XAFS).

The application of metal single-site zeolites in different catalytic processes such as Fischer Tropsch synthesis, propene epoxidation into propene oxide, selective catalytic reduction of NOx to N2 (studied with high resolution XANES and EXAFS under operando conditions), production of 1,3-butadiene by tandem processes, CO2 methanation, hydrogen production from renewable sources, including ethanol obtained from biomass [3-5] will be discussed.

Biography:

Professor Stanislaw Dzwigaj received his PhD degree in 1982 in Jerzy Haber Institute of Catalysis and Surface Chemistry, Krakow (Poland). After two years of postdoctoral stay at the Laboratoire de Réactivité de Surface Université P. et M. Curie (Paris) he obtained in 1990 a position of contract researcher in the same Laboratory devoted to surface reactivity in relation to catalysis phenomena. Then, in 2008 he obtained permanent position in CNRS as a researcher. On February 19, 2014 for outstanding scientific achievements he received the title of professor.  His published work includes more than 160 papers published in reputable international journals. 

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