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Solvent-free synthesis of ZIFs: a route toward the elusive Fe(II) analogue of ZIF-8

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Solvent-free synthesis of ZIFs: a route toward the elusive Fe(II) analogue of ZIF-8

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dc.contributor.author	López Cabrelles, Javier
dc.contributor.author	Romero Pascual, Jorge
dc.contributor.author	Abellán Sáez, Gonzalo
dc.contributor.author	Giménez Marqués, Mónica
dc.contributor.author	Palomino, Miguel
dc.contributor.author	Valencia, Susana
dc.contributor.author	Rey, Fernando
dc.contributor.author	Mínguez Espallargas, Guillermo
dc.date.accessioned	2020-05-08T08:14:56Z
dc.date.available	2020-05-08T08:14:56Z
dc.date.issued	2019
dc.identifier.citation	López Cabrelles, Javier Romero Pascual, Jorge Abellán Sáez, Gonzalo Giménez Marqués, Mónica Palomino, Miguel Valencia, Susana Rey, Fernando Mínguez Espallargas, Guillermo 2019 Solvent-free synthesis of ZIFs: a route toward the elusive Fe(II) analogue of ZIF-8 Journal of the American Chemical Society 141 7173 7180
dc.identifier.uri	https://hdl.handle.net/10550/74535
dc.description.abstract	Herein we report the synthesis of an elusive metal-organic framework, the iron(II) analogue of ZIF-8, with formula Fe(2-methylimidazolate)2, here denoted as MUV-3. The preparation of this highly interesting porous material, inaccessible by common synthetic procedures, occurs in a solvent-free reaction upon addition of an easily detachable template molecule, yielding single crystals of MUV-3. This methodology is extensive to other metals and imidazolate derivatives, allowing the preparation of ZIF-8, ZIF-67 and other unprecedented iron(II) ZIFs, Fe(2-ethylimidazolate)2 and Fe(2-methylbenzimidazolate)2. The different performance of MUV-3 towards NO sorption, compared to ZIF-8, results from the chemisorption of NO molecules, which also causes a gate opening behavior. Finally, the controlled pyrolysis of MUV-3 results in a N-doped graphitic nanocomposite that exhibits extraordinary performances for Oxygen Evolution Reaction (OER), with low overpotential at different current densities (316 mV at 10 mA·cm-2), low Tafel slope (37 mV per decade), high maximum current density (710 mA·cm-2 at 2.0 V vs RHE) and large durability (15 h).
dc.language.iso	eng
dc.relation.ispartof	Journal of the American Chemical Society, 2019, vol. 141, p. 7173-7180
dc.subject	Materials
dc.subject	Cristalls
dc.title	Solvent-free synthesis of ZIFs: a route toward the elusive Fe(II) analogue of ZIF-8
dc.type	journal article	es_ES
dc.date.updated	2020-05-08T08:14:57Z
dc.identifier.doi	10.1021/jacs.9b02686
dc.identifier.idgrec	131337
dc.rights.accessRights	open access	es_ES