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Solid-state mechanochemistry as a greener route for synthesis of advanced materials

Grant number: 17/15456-0
Support type:Scholarships in Brazil - Post-Doctorate
Effective date (Start): November 01, 2017
Effective date (End): October 31, 2020
Field of knowledge:Physical Sciences and Mathematics - Chemistry
Principal Investigator:Roberto Manuel Torresi
Grantee:Paulo Filho Marques de Oliveira
Home Institution: Instituto de Química (IQ). Universidade de São Paulo (USP). São Paulo , SP, Brazil
Associated research grant:15/26308-7 - Optimization of the physicochemical properties of nano -structured materials for applications in molecular recognition, catalysis and energy conversion/storage, AP.TEM
Associated scholarship(s):19/01619-0 - Elucidating the mechanisms of noble metal nanoparticles formation in solid-state mechanochemical ball milling conditions using in situ techniques, BE.EP.PD


Mechanochemistry has gained increasing attention as an environmentally friendly route in chemistry and material science with a remarkable scientific and technological production in the last two decades. Beyond representing a green synthetic approach, mechanical activation, mainly mechanical milling, has demonstrated prominent results allowing to perform a vast number of classic organic reactions, catalyzed or not, and to obtain co-crystals, supramolecular architectures and other advanced materials directly in solid-state. High yields, selectivity and timesaving are some advantages of mechanochemistry face to thermal solution-based protocols. Furthermore, some products can be prepared only through this route, which reinforces the interest for further investigations in the field. However, the mechanisms and kinetics of mechanically-induced transformations are not completely elucidated and there is no formalism concerning mechanochemical reactions yet. Thus, fundamental studies need attention to enable fine-tuning for product formation, to drive reactions and to obtain the specific architectures for materials designed for catalytic applications, for example. This research project proposes a systematic investigation of the transformations induced by milling for the synthesis of porous materials (MOFs) and functional nanoparticles (metals and oxides). The mechanisms at molecular and macroscopic level will be studied as well as the kinetics in the solid state. Investigations on the various synthetic parameters will be carried out towards the physicochemical optimization of all produced materials. Moreover, structure-property relationships for applications in catalysis and plasmonics will be established, in which the performance of the materials obtained by mechanochemical approaches will be also compared relative to their solution-based synthesis counterparts.

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
DE OLIVEIRA, PAULO F. M.; QUIROZ, JHON; DE OLIVEIRA, DANIELA C.; CAMARGO, PEDRO H. C. A mechano-colloidal approach for the controlled synthesis of metal nanoparticles. CHEMICAL COMMUNICATIONS, v. 55, n. 95, p. 14267-14270, DEC 11 2019. Web of Science Citations: 0.

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