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dc.contributor.authorVicente, Nuria
dc.contributor.authorBresser, Dominic
dc.contributor.authorPasserini, Stefano
dc.contributor.authorGarcia-Belmonte, Germà
dc.date.accessioned2019-03-07T10:40:02Z
dc.date.available2019-03-07T10:40:02Z
dc.date.issued2019-01-19
dc.identifier.citationVICENTE, Nuria, et al. Probing the 3‐step Lithium Storage Mechanism in CH3NH3PbBr3 Perovskite Electrode by Operando‐XRD Analysis. ChemElectroChem, 2019, vol. 6, no 2, p. 456-460ca_CA
dc.identifier.issn2196-0216
dc.identifier.urihttp://hdl.handle.net/10234/181746
dc.descriptionThis is the pre-peer reviewed version of the following article: Probing the 3‐step Lithium Storage Mechanism in CH3NH3PbBr3 Perovskite Electrode by Operando‐XRD Analysis, which has been published in final form at: https://doi.org/10.1002/celc.201801291. This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions.
dc.description.abstractOrganic‐inorganic hybrid materials have gradually become one of the most actively studied research fields due to their fascinating properties. The reaction between lithium and organic‐inorganic halide perovskite has just recently been proposed. However, the exact mechanisms taking place in this electrode material have not been fully elucidated, yet. To shed light on these processes an operando‐X‐ray diffraction study has been performed and is reported herein. According to our results the lithiation of CH3NH3PbBr3 entails three reaction steps, distinguishable during the initial galvanostatic lithiation for different Li‐ion molar content x: (1) the initial Li+ insertion into the perovskite phase in which pure perovskite and lithiated phases coexist (0 <x<1), (2) the perovskite conversion reaction leading to the formation of metallic lead (1 <x<2), and finally, (3) the alloying of lithium with the metallic lead previously formed. In more detail, for x>0.3, the formation of a Lix:CH3NH3PbBr3 phase with distinctive X‐ray diffraction peaks is clearly detected, which coexists with the pristine material, till abruptly both phases disappear at x∼1 and CH3NH3Br and Pb metal are formed. It is shown that this conversion reaction is an irreversible process. The proposed mechanism for lithium storage gives a complete perspective of the complex structural environment involving the use of perovskite materials as electrodes for Li‐ion batteries.ca_CA
dc.format.extent5 p.ca_CA
dc.format.mimetypeapplication/pdfca_CA
dc.language.isoengca_CA
dc.publisherWileyca_CA
dc.relation.isPartOfChemElectroChem, 2019, vol. 6, no 2ca_CA
dc.rightsCopyright © John Wiley & Sons, Inc.ca_CA
dc.subjectextrinsic ionca_CA
dc.subjecthybrid perovskitesca_CA
dc.subjectlithium dopingca_CA
dc.subjectstorage mechanismca_CA
dc.subjectX-ray diffractionca_CA
dc.titleProbing the 3‐step Lithium Storage Mechanism in CH3NH3PbBr3 Perovskite Electrode by Operando‐XRD Analysisca_CA
dc.typeinfo:eu-repo/semantics/articleca_CA
dc.identifier.doihttps://doi.org/10.1002/celc.201801291
dc.relation.projectIDMinisterio de Economia y Competitividad (MINECO) of Spain: MAT2016-76892-C3-1-R; Universitat Jaume I (UJI) through FPI Fellowship Program: PREDOC/2015/54; E-2017-18ca_CA
dc.rights.accessRightsinfo:eu-repo/semantics/openAccessca_CA
dc.relation.publisherVersionhttps://onlinelibrary.wiley.com/doi/full/10.1002/celc.201801291ca_CA
dc.type.versioninfo:eu-repo/semantics/submittedVersionca_CA


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