Қизиқувчилар иштирок этишингизни сўрайман, эртага соат 10.30 да, зуум орқали

2025 yil 24 fevral kuni soat 10.30 da Fizika fakulteti magistr va talabalari uchun Singapur Milliy universiteti professori Utkir Mirsaidovning “Probing structural changes in nanoparticles during CO-oxidation reaction via In Situ Transmission Electron Microscopy (TEM)” mavzusidagi ma’ruzasi (on-layn) bo’lib o’tadi.

Zoom Link
https://nus-sg.zoom.us/j/89149334965?pwd=YR3XCdTpObAFIldjjGJt95Pom4nbsy.1
Meeting ID: 891 4933 4965
Passcode: 122119

Probing structural changes in nanoparticles during CO-oxidation reaction via In Situ Transmission Electron Microscopy (TEM)”
Utkur Mirsaidov
Centre for BioImaging Science, Department of Biological Science, National University of Singapore, Singapore 117557
Department of Physics, National University of Singapore, Singapore 117546
Abstract
Nanoparticle catalysts are commonly used to accelerate chemical reactions and increase the efficiency of a broad range of industrially relevant reactions. To enable the rational design of catalysts with better performance, it is critical that we understand the relationship between the structure and its catalytic properties of catalysts. However, because the catalysts exhibit dynamical structures that do not exist outside the reactive environment, such insights about catalysts can only be obtained under relevant reaction conditions. TEM has always been a powerful technique for studying the detailed structure of nanoparticles. Recent developments in in situ environmental TEM, now make it possible to study nanostructures within a reactive gas environment with TEM and probe their dynamic structures during a reaction.
Using in situ gas-phase TEM imaging, I will discuss how nanoparticle catalysts behave during catalysis and identify transient active states responsible for reactions. Specifically, using monometallic and bimetallic nanoparticles for CO oxidation model reaction, I will describe surprising permanent and transient structural transformations that drive CO-oxidation reaction.
These insights into how nanoparticle catalysts evolve during during catalysis are important for the rational design of high-performance catalysts.

Tashkilotchi: professor B.Irgaziyev
Fakultet professor o’qituvchilari va talabalarini ishtirok etishi so’raladi.

2025 yil 24 fevral kuni soat 10.30 da Fizika fakulteti magistr va talabalari uchun Singapur Milliy universiteti professori Utkir Mirsaidovning “Probing structural changes in nanoparticles during CO-oxidation reaction via In Situ Transmission Electron Microscopy (TEM)” mavzusidagi ma’ruzasi (on-layn) bo’lib o’tadi.

Zoom Link
https://nus-sg.zoom.us/j/89149334965?pwd=YR3XCdTpObAFIldjjGJt95Pom4nbsy.1
Meeting ID: 891 4933 4965
Passcode: 122119

Probing structural changes in nanoparticles during CO-oxidation reaction via In Situ Transmission Electron Microscopy (TEM)”
Utkur Mirsaidov
Centre for BioImaging Science, Department of Biological Science, National University of Singapore, Singapore 117557
Department of Physics, National University of Singapore, Singapore 117546
Abstract
Nanoparticle catalysts are commonly used to accelerate chemical reactions and increase the efficiency of a broad range of industrially relevant reactions. To enable the rational design of catalysts with better performance, it is critical that we understand the relationship between the structure and its catalytic properties of catalysts. However, because the catalysts exhibit dynamical structures that do not exist outside the reactive environment, such insights about catalysts can only be obtained under relevant reaction conditions. TEM has always been a powerful technique for studying the detailed structure of nanoparticles. Recent developments in in situ environmental TEM, now make it possible to study nanostructures within a reactive gas environment with TEM and probe their dynamic structures during a reaction.
Using in situ gas-phase TEM imaging, I will discuss how nanoparticle catalysts behave during catalysis and identify transient active states responsible for reactions. Specifically, using monometallic and bimetallic nanoparticles for CO oxidation model reaction, I will describe surprising permanent and transient structural transformations that drive CO-oxidation reaction.
These insights into how nanoparticle catalysts evolve during during catalysis are important for the rational design of high-performance catalysts.

Tashkilotchi: professor B.Irgaziyev
Fakultet professor o’qituvchilari va talabalarini ishtirok etishi so’raladi.

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