22 April 2022

Séminaire ICP Tomer Zidki – vendredi 22 avril à 14h30

The Zidki’s group – Redox Reactions Catalyzed by Nanoparticles

Tomer ZidkiThe Department of Chemical Sciences, The Schlesinger Family Center for Compact Accelerators, and the Material Research Center, Ariel University, Israel

In my lecture, I will present my group research over the past years and current projects:

  • A new method for themechanistic study of reduction reactions on nanoparticles’ surfaces.[1] I will explain the strategy behind this method and present the results obtained.
  • The development of a catalytic system for converting gaseous pollutants into fertilizers.
  • Photocatalytic hydrogen evolution reaction – mechanistic aspects.[2]
  • Electrochemical water oxidation catalysts.

I will also review some radical reactions at surfaces.[1-5]

At the end of the talk, I will present the linear electron accelerator (LINAC) system installed in Ariel U.

References:

(1)           Sermiagin, A.; Meyerstein, D.; Bar-Ziv, R.; Zidki, T. The Chemical Properties of Hydrogen Atoms Adsorbed on M°-Nanoparticles Suspended in Aqueous Solutions: The Case of Ag°-NPs and Au°-NPs Reduced by BD₄¯. Angew. Chem. Int. Ed. 2018, 57 (50), 16525–16528.

(2)           Sathiyan, K.; Bar-Ziv, R.; Marks, V.; Meyerstein, D.; Zidki, T. The Role of Common Alcoholic Sacrificial Agents in Photocatalysis: Is It Always Trivial? Chem. Eur. J. 2021, 27 (64), 15936–15943.

(3)           Bar-Ziv, R.; Zidki, T. The Effect of Negatively Charged Metallic Nanocatalysts on Their Reactions with Alkyl Radicals. J. Coord. Chem. 2018, 71 (11–13), 1791–1798.

(4)           Zidki, T.; Bar-Ziv, R.; Green, U.; Cohen, H.; Meisel, D.; Meyerstein, D. The Effect of the Nano-Silica Support on the Catalytic Reduction of Water by Gold, Silver and Platinum Nanoparticles - Nanocomposite Reactivity. Phys. Chem. Chem. Phys. 2014, 16 (29), 15422–15429.

(5)           Bar-Ziv, R.; Zilbermann, I.; Oster-Golberg, O.; Zidki, T.; Yardeni, G.; Cohen, H.; Meyerstein, D. On the Lifetime of the Transients (NP)-(CH3)n (NP=Ag°, Au°, TiO2 Nanoparticles) Formed in the Reactions Between Methyl Radicals and Nanoparticles Suspended in Aqueous Solutions. Chem. Eur. J. 2012, 18 (15), 4699–4705.

22 April 2022, 14h3015h30
Salle Magat, bâtiment 349, ICP