About MX3 and MX2 (Mn+ = Mg2+, Al3+, Ti4+, Fe3+; Xp− = F−, O2−, OH−) nanofluorides
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DEMOURGUES, Alain | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | PENIN, Nicolas | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DAMBOURNET, Damien | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | CLARENC, Romain | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | TRESSAUD, Alain | |
| hal.structure.identifier | Institut de Chimie de la Matière Condensée de Bordeaux [ICMCB] | |
| dc.contributor.author | DURAND, Etienne | |
| dc.date.issued | 2012 | |
| dc.identifier.issn | 0022-1139 | |
| dc.description.abstractEn | Several nanosized fluoro-compounds have been prepared by microwave-assisted solvothermal routes: Al3+-, Fe3+- and Ti4+-based oxyfluorides with the hexagonal tungsten bronze (HTB) framework, Ti4+-based fluorinated anatase, and rutile MgF2. The structural features have been determined using XRD and TEM analyses. The presence of OH− groups substituted for F− ions has been demonstrated for all of these nanofluorides. In Al- and Mg-based nanofluorides, the OH rate can be reduced by F2-direct fluorination. Furthermore, the higher the polarizing power of the cation, the higher the oxygen content. For cation with high formal charge, such as Ti4+ stabilized in a distorted octahedral site, the occurrence of O2−/OH−/F− anions in its vicinity as well as vacancies have to be mentioned. Finally coupling the microwave-assisted solvothermal route with the F2-direct fluorination allow preparing high surface area metal fluorides where the amount of oxygen is noticeable and contribute to create under-coordinated cationic species at the surface which can induce high Lewis acidity. | |
| dc.language.iso | en | |
| dc.publisher | Elsevier | |
| dc.subject.en | Inorganic fluorides | |
| dc.subject.en | Nanomaterials | |
| dc.subject.en | Mixed anions | |
| dc.subject.en | Microwave synthesis | |
| dc.subject.en | Structures | |
| dc.subject.en | Powder XRD | |
| dc.title.en | About MX3 and MX2 (Mn+ = Mg2+, Al3+, Ti4+, Fe3+; Xp− = F−, O2−, OH−) nanofluorides | |
| dc.type | Article de revue | |
| dc.identifier.doi | 10.1016/j.jfluchem.2011.02.006 | |
| dc.subject.hal | Chimie/Matériaux | |
| bordeaux.journal | Journal of Fluorine Chemistry | |
| bordeaux.page | 35-43 | |
| bordeaux.volume | 134 | |
| bordeaux.peerReviewed | oui | |
| hal.identifier | hal-00663171 | |
| hal.version | 1 | |
| hal.popular | non | |
| hal.audience | Internationale | |
| hal.origin.link | https://hal.archives-ouvertes.fr//hal-00663171v1 | |
| bordeaux.COinS | ctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Journal%20of%20Fluorine%20Chemistry&rft.date=2012&rft.volume=134&rft.spage=35-43&rft.epage=35-43&rft.eissn=0022-1139&rft.issn=0022-1139&rft.au=DEMOURGUES,%20Alain&PENIN,%20Nicolas&DAMBOURNET,%20Damien&CLARENC,%20Romain&TRESSAUD,%20Alain&rft.genre=article |
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