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Pàgina inicial > Articles > Articles publicats > Pathway selection as a tool for crystal defect engineering : |
Data: | 2020 |
Resum: | New synthetic routes capable of achieving defect engineering of functional crystals through well-controlled pathway selection will spark new breakthroughs and advances towards unprecedented and unique functional materials and devices. In nature, the interplay of chemical reactions with the diffusion of reagents in space and time is already used to favor such pathway selection and trigger the formation of materials with bespoke properties and functions, even when the material composition is preserved. Following this approach, herein we show that a controlled interplay of a coordination reaction with mass transport (i. e. the diffusion of reagents) is essential to favor the generation of charge imbalance defects (i. e. protonation defects) in a final crystal structure (thermodynamic product). We show that this synthetic pathway is achieved with the isolation of a kinetic product (i. e. a metastable state), which can be only accomplished when a controlled interplay of the reaction with mass transport is satisfied. Accounting for the relevance of controlling, tuning and understanding structure-properties correlations, we have studied the spin transition evolution of a well-defined spin-crossover complex as a model system. |
Ajuts: | European Commission 734322 European Commission 677020 Ministerio de Economía y Competitividad RTI2018-098027-B-C21 Ministerio de Economía y Competitividad CTQ2017-88948-P Ministerio de Economía y Competitividad SEV-2017-0706 Ministerio de Economía y Competitividad MAT 2015-70615-R Ministerio de Economía y Competitividad BES-2015-071492 |
Nota: | Altres ajuts: J.P.L. and S.P. acknowledge networking support by the COST Action CM1407 "e-minds". The ICN2 is funded by the CERCA programme / Generalitat de Catalunya. G.A. thanks support by the Generalitat de Catalunya through the ICREA Academia Prize 2018 |
Drets: | Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, i la comunicació pública de l'obra, sempre que no sigui amb finalitats comercials, i sempre que es reconegui l'autoria de l'obra original. No es permet la creació d'obres derivades. |
Llengua: | Anglès |
Document: | Article ; recerca ; Versió acceptada per publicar |
Matèria: | Defect crystal engineering ; Pathway selection ; Out-of-equilibrium crystal state ; Non-covalent synthesis ; Reaction-diffusion condition |
Publicat a: | Applied materials today, Vol. 20 (Sep. 2020) , art. 100632, ISSN 2352-9407 |
Postprint 13 p, 1.2 MB |