Mechanochemical preparation of Ruddlesden-Popper type perovskites

Biliškov, Nikola; Brekalo, Ivana; Martinez, Valentina; Milanović, Igor; Wegner, Wojciech; Pantić, Tijana; Babić, Bojana; Etter, Martin; Užarević, Krunoslav; Friščić, Tomislav Mechanochemical preparation of Ruddlesden-Popper type perovskites. In: Biliškov, Nikola; Karadeniz, Bahar; Pantalon Juraj, Natalija, (eds.) Solid-State Science & Research 2023 - Book of Abstracts. Zagreb, Ruđer Bošković Institute, p. 50 .

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Abstract

Understanding mechanistic details of mechanochemical processes enables the optimization of preparational procedures and conditions leading to various important classes of materials. Here, a series of liquid-assisted ball milling reactions leading to Ruddlesden-Popper type perovskites MCuCl4-xBrx (M = Rb, Cs),[1] monitored in operando by synchrotron PXRD will be presented. The results show that the added liquids usually catalyze perovskite formation through a common, unidentified intermediate. However, adding specific strongly interacting liquids leads to stable or metastable solvates, which inhibit or even terminate the perovskite formation. This, in turn, indicates that the role of liquids is not general for all types of systems. Reaction profiles and kinetics, extracted from experimental data supported by computational simulations, will shed more light on the specific role of liquids in inorganic mechanochemical reactions, which has not been widely explored since.

Item Type:

Conference or workshop item published in conference proceedings (UNSPECIFIED)

Uncontrolled Keywords:

mechanochemistry; in-situ; PXRD; perovskite; liquid-assisted grinding

Subjects:

NATURAL SCIENCES > Chemistry > Physical Chemistry
NATURAL SCIENCES > Chemistry > Inorganic Chemistry

Divisions:

Division of Materials Chemistry
Division of Physical Chemistry

Projects: