WO2026125125 - METHOD FOR PREPARING A SEPARATING MEMBRANE WITH TRANSITION METAL DICHALCOGENIDE NANOPARTICLES
National phase entry is expected:
Publication Number
WO/2026/125125
Publication Date
18.06.2026
International Application No.
PCT/EP2025/085440
International Filing Date
04.12.2025
Title **
[English]
METHOD FOR PREPARING A SEPARATING MEMBRANE WITH TRANSITION METAL DICHALCOGENIDE NANOPARTICLES
[French]
PROCEDE DE PREPARATION D'UNE MEMBRANE SEPARATRICE AVEC DES NANOPARTICULES A BASE DE DICHALCOGENURE DE METAL DE TRANSITION
Applicants **
IFP ENERGIES NOUVELLES
Inventors
DE MASI, Déborah
AL-NAHARI, Shadi
SODREAU, Alexandre
UZIO, Denis
Priority Data
FR2414093
13.12.2024
FR
Application details
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International Searching Authority |
EPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| Translation |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2163 | |
| EPO | Filing, Examination, Granting | 10256 | |
| Japan | Filing, Examination, Granting | 2298 | |
| South Korea | Filing, Examination, Granting | 2298 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
21,755
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Abstract[English]
The present invention relates to a method for preparing a separating membrane, which method comprises: a) a step of preparing nanoparticles of a sulphide of one or more transition metals chosen from Mo, V and W, comprising a step of the thermal decomposition of: - at least one organic or mineral transition metal precursor and at least one sulphur precursor; and/or - at least one organic transition metal-sulphur precursor; in the presence of at least one organic stabilising agent so as to obtain nanoparticles in the form of monolayers; b) a step of depositing the nanoparticles prepared in step a) in the form of a selective layer on a support membrane, in particular: - by direct filtration of a solution containing said nanoparticles on the support membrane; or - by immersion of the support membrane in a solution containing said nanoparticles.[French]
La présente invention concerne un procédé de préparation d'une membrane séparatrice qui comporte - a) une étape de préparation de nanoparticules de sulfure de métal(aux) de transition, choisi(s) parmi Mo, V et W, comprenant une étape de décomposition thermique - d'au moins un précurseur organique ou minéral du métal de transition et d'au moins un précurseur de soufre - et/ou d'au moins un précurseur organique à la fois du métal de transition et du soufre, - en présence d'au moins un agent stabilisant organique de façon à obtenir des nanoparticules sous forme de monofeuillets, - b) une étape de dépôt desdites nanoparticules préparées à l'étape a) sous forme d'une couche sélective sur une membrane support, notamment - par filtration directe d'une solution contenant lesdites nanoparticules sur ladite membrane support, - ou par immersion de la membrane support dans une solution contenant lesdites nanoparticules.