6 февраля 2025 г. Американское химическое общество проводит бесплатный вебинар на тему: «Химия в чашке чая», посвященный особенностям химического состава и биологического действия чая.

Подробная информация и регистрация на вебинар по ссылке:

https://www.acs.org/acs-webinars/library/chemistry-of-tea.html

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19 февраля 2024 г. в 14:00 состоится вебинар Международного золь-гель общества на тему «Органо-неорганические гибридные гидроксиды металлов и их применение в составе электродных материалов».
Докладчик - проф. Курода, Национальный университет Йокогамы.

Краткие тезисы:
Inorganic–organic hybrid materials have attracted significant attention due to their designability, which arises from the combination of inorganic and organic components. Layered metal hydroxides are valuable materials that serve as catalysts, electrocatalysts, ion exchangers, etc. Their surface hydroxy groups can be covalently modified with tripodal ligands, such as tris(hydroxymethyl)aminomethane. This method relies on the structural matching between the arrangement of surface hydroxy groups and the molecular structure of the modifier. Consequently, various constituent metals in the hydroxide layer and functional groups on the ligand can be utilised similarly. The surface modification enhances the intercalation ability of metal hydroxides and facilitates their exfoliation into nanosheets. These hybrid metal hydroxide nanosheets have been applied as self-repairing electrocatalysts and flexible mesoporous hydrogel electrodes for alkaline water electrolysis to produce green hydrogen, using the unique properties due to organic modifiers.

Zoom: https://us02web.zoom.us/j/3072916432?pwd=OSZHrl56NrOJhvS29d9wb5mP282qPc.1&omn=88350008585
Пароль: #dz0m2Kp7W

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22 мая 2025 г. в 15:00 мск состоится вебинар Международного золь-гель общества на тему «Мезопористые оксидные тонкие пленки: стартовая точка для разработки функциональных материалов».
Докладчик - проф. Ангеломе (Аргентина).

Краткие тезисы:
Thin films are crucial for the production of a large number of electronic devices, sensors, functional coatings, and protective coatings. In some of these applications, the incorporation of controlled porosity at the mesoscale (pore diameters between 2 and 50 nm) allows for the enhancement or expansion of the films' functionality. For this purpose, mesoporous oxide thin films (MOTFs) can be prepared in a highly controlled manner using the sol-gel method combined with the self assembly of amphiphilic molecules, which give rise to the pores. This, it is possible to generate coatings of pure, mixed, or hybrid oxides, with mesopores arranged in various geometries. Once MOTFs are obtained, they can be combined with other nanomaterials, enhancing and expanding their usefulness.
In this seminar, I will present results on the preparation and characterization of MOTFs based functional materials. First, their use as building blocks for obtaining bilayer and multilayer architectures will be demonstrated, with potential applications in optical sensing. Then, the production of composite materials based on MOTFs and metal nanoparticles with various architectures will be presented, for use as catalysts and sensors based on Raman spectroscopy. In all cases, emphasis will be placed on the importance of rationally designing and thoroughly characterizing the materials to ensure their proper functioning.


Zoom: https://us06web.zoom.us/j/8867581791?pwd=T0c2REcyL2prNy9EZXNVWEwrZ1JiUT09&omn=87883316602
Пароль: 1jDKEJ

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31 июля 2025 г. в 16:00 мск состоится вебинар Международного золь-гель общества на тему «Золь-гель подход к аддитивному производству оптического стекла».
Докладчик - проф. Дестино (США).

Краткие тезисы:
The advancement of additive manufacturing (AM) or 3D printing has shown extraordinary potential to revolutionize many fields, including glass science and optics fabrication. My research group studies the development and characterization of sol-gel-derived colloidal feedstocks designed for fabricating optical glasses by direct ink write (DIW) AM. Our approach mainly focuses on binary silica-based feedstocks targeting specific optical properties, including improved optical transmission, tunable refractive indices, and color filter-ing. We have developed multiple sol-gel routes for synthesizing hybrid colloids of various morphologies and compositions and confirm their physical and chemical structural properties by various analytical techniques. We also investigate how colloidal feedstock structure influences material properties and glass network formation upon thermal processing and densification using those same techniques.

Zoom: https://us06web.zoom.us/j/8867581791?pwd=T0c2REcyL2prNy9EZXNVWEwrZ1JiUT09&omn=83114536998
Пароль: 1jDKEJ

#семинар