Cargando…

Processing and Investigation Methods in Mechanochemical Kinetics

[Image: see text] The present work focuses on the challenges that emerge in connection with the kinetics of mechanically activated transformations. This is an important topics to comprehend to enable the full exploitation of mechanical processing in a broad spectrum of areas related to chemistry and...

Descripción completa

Detalles Bibliográficos
Autores principales: Colacino, Evelina, Carta, Maria, Pia, Giorgio, Porcheddu, Andrea, Ricci, Pier Carlo, Delogu, Francesco
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Chemical Society 2018
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6644374/
https://www.ncbi.nlm.nih.gov/pubmed/31459054
http://dx.doi.org/10.1021/acsomega.8b01431
Descripción
Sumario:[Image: see text] The present work focuses on the challenges that emerge in connection with the kinetics of mechanically activated transformations. This is an important topics to comprehend to enable the full exploitation of mechanical processing in a broad spectrum of areas related to chemistry and materials science and engineering. Emerging challenges involve a number of facets regarding materials and material properties, working principles of ball mills and milling conditions, and local changes occurring in series in processed materials. Within this context, it is highly desirable to relate the nature and rate of observed mechanochemical transformations to individual collisions and then to the processes induced by mechanical stresses on the molecular scale. Hence, it is necessary to characterize the milling regimes that can establish in ball mills regarding frequency and energy of collisions, map the relationship between milling dynamics and transformation kinetics, and obtain mechanistic information through proper time-resolved investigations in situ. A few specific hints are provided in this respect.