In situ investigation of molecular kinetics and particle formation of water-dispersible titania nanocrystals
Literature Information
G. Garnweitner, C. Grote
Metal oxide nanoparticles can be fabricated under high control via nonaqueous sol–gel synthesis. This route has been shown to lead to highly crystalline, uniform nanostructures, which explains the high and growing interest it is receiving. The underlying mechanisms are, however, so far only rudimentarily understood on a molecular scale. Here, we applied in situ FTIR spectroscopy and other techniques to monitor the nonaqueous synthesis of titania nanoparticles that can be easily stabilised in polar solvents and thus, possess high potential for application. A special focus is put on the kinetics of the organic condensation mechanisms enabling the reaction of the precursor to the inorganic nanoparticles. By comparing these kinetics to the process of nanoparticle formation monitored via complementary methods such as TEM and dynamic light scattering, a detailed insight into the principles and mechanisms of nanoparticle formation via the nonaqueous sol–gel synthesis is achieved.
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Physical Chemistry Chemical Physics

Physical Chemistry Chemical Physics (PCCP) is an international journal co-owned by 19 physical chemistry and physics societies from around the world. This journal publishes original, cutting-edge research in physical chemistry, chemical physics and biophysical chemistry. To be suitable for publication in PCCP, articles must include significant innovation and/or insight into physical chemistry; this is the most important criterion that reviewers and Editors will judge against when evaluating submissions. The journal has a broad scope and welcomes contributions spanning experiment, theory, computation and data science. Topical coverage includes spectroscopy, dynamics, kinetics, statistical mechanics, thermodynamics, electrochemistry, catalysis, surface science, quantum mechanics, quantum computing and machine learning. Interdisciplinary research areas such as polymers and soft matter, materials, nanoscience, energy, surfaces/interfaces, and biophysical chemistry are welcomed if they demonstrate significant innovation and/or insight into physical chemistry. Joined experimental/theoretical studies are particularly appreciated when complementary and based on up-to-date approaches.














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