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Information × Registration Number 0225U001615, (0123U104432) , R & D reports Title Formation processes of multicomponent nanostructured systems with polyfunctional properties: colloidal-chemical and biocolloidal aspects (code: III.4) popup.stage_title Аналіз методів отримання 2D наносистем на основі g-C3N4 за різних умов синтезу, їх вдосконалення та одержання на їх основі композитів з наночастинками металів (Ag, Cu, Bi та ін.) та їх фізико-хімічна характеризація. Узагальнення існуючих біоколоїдних і фізико-механічних моделей міжфазної взаємодії в наноструктурованих залізовмісних алюмосилікатних та металовмісних системах. Head Prokopenko Vitalii A., Доктор технічних наук Registration Date 03-02-2025 Organization F. D. Ovcharenko Institute of Biocolloidal Chemistry NAS of Ukraine popup.description1 The purpose of the work is to develop fundamental ideas, principles and approaches to the creation of modern technologies and multifunctional materials based on various types of nanoscale systems – natural or man-made metal or iron-containing aluminosilicates and synthetic graphite-like g-C3N4 grids with the involvement of the principles of colloid and biocolloid science and physico-chemical geomechanics. popup.description2  A review of 2D nanosystem synthesis methods based on g-C₃N₄ and its metal nanoparticle composites enabled proposing new approaches. Composites of Ni, Pd, and Bi - g-C₃N₄ were synthesized in different ratios. Characterization included XRD, DTA, SEM, TEM, XPS, IR, Raman spectroscopy, and electrochemical methods (voltammetry, charge-discharge cycling, impedance spectroscopy). Ni - g-C₃N₄ and Pd - g-C₃N₄ showed selective catalytic activity in organic hydrogenation and potential for environmental pollutant oxidation. Bi - g-C₃N₄ systems demonstrated promise as cathode materials for supercapacitors. Literature analysis and experimental studies revealed interfacial interaction mechanisms in clayey iron-aluminosilicate dispersions. Contact strength in these dispersions is driven by nanophase bonds between clays and iron oxide-hydroxides, while siloxane and siloxane-carbonate bonds play a secondary role, being more relevant for siliceous and carbonate-rich composites. These interactions control rheological properties, inducing transitions from laminar to turbulent flow, accompanied by dilatant, rheopectic, and thixotropic phases. Processes are activated by mechanical forces (gravity, earthquakes, tsunamis), leading to submarine flows reaching ocean depths. These flows are regulated by nanostructural interactions, biocolloidal phenomena, and bacterial reactions, which promote amphiphilic surfactant formation and mineral dispersion. Autohydration in saline water and biotic processes significantly impact material transport, critical for modeling their behavior across various conditions. Product Description popup.authors Volobaiev Ihor I. Zatovskyi Ihor V. Zubkov Oleksandr P. Kovzun Ihor H. Oliinyk Viktoriia O. Panova Kateryna E. Panko Andrii V. Platonova Viktoriia Prokopenko Vitalii A. Turchyna Tamara O. Tsyhanovych Olena A. Yarosh Tetiana Yu. popup.nrat_date 2025-02-03 Close