Peer-Reviewed Publication
ACS Nano2023;17(17):17058-17069.September 12, 2023Journal Article
Thermally Promoted Cation Exchange at the Solid State in the Transmission Electron Microscope: How It Actually Works.
Alberto Casu1,2, Miquel Lopez3, Claudio Melis3, Davide Deiana4, Hongbo Li5, Luciano Colombo3, Andrea Falqui1,2,6
1Department of Physics "Aldo Pontremoli", University of Milan, Via Celoria 16, 20133 Milan, Italy.
2Biological and Environmental Sciences and Engineering (BESE) Division, King Abdullah University of Science and Technology (KAUST), Nabla Lab, Thuwal 23955-6900, Saudi Arabia.
3Department of Physics, University of Cagliari, Cittadella, University of Cagliari, Cittadella Universitaria di Monserrato, 09042 Monserrato (CA), Italy.
4Centre Interdisciplinaire de Microscopie Électronique (CIME), Ecole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, Switzerland.
5Experimental Center of Advanced Materials, School of Materials Science and Engineering, Beijing Institute of Technology, Beijing 100081, China.
6Interdisciplinary Centre for Nanostructured Materials and Interfaces (CIMaINa), Department of Physics "Aldo Pontremoli", University of Milan, Via Celoria 16, 20133 Milan, Italy.
Abstract
Cation exchange offers a strong postsynthetic tool for nanoparticles that are unachievable via direct synthesis, but its velocity makes observing the onset of the reaction in the liquid state almost impossible. After successfully proving that cation exchange reactions can be triggered, performed, and followed live at the solid state by an in situ transmission electron microscopy approach, we studi…
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