Procedure for Synthesis of Quasi One-Dimensional Structures of Dichalcogenides and Transition Metal Oxides
| Publication Number: |
SI22623A |
| Application Date: |
25. 9. 2007 |
| Assignee/Applicant: |
Jožef Stefan Institute [SI] |
| Inventor: |
Adolf Jesih, Aleš Mrzel, Maja Remškar, Marko Viršek |
| Title: |
Postopek za sintezo kvazi enodimenzionalnih struktur dihalkogenidov in oksidov prehodnih kovin [SL], Procedure for Synthesis of Quasi One-Dimensional Structures of Dichalcogenides and Transition Metal Oxides [EN] |
| Description: |
The subject of invention is a procedure for synthesis of quasi one-dimensional structures, i.e. nanowires, microwires and tapes of metal oxides of transition metals and quasi one-dimensional structures of transition metal dichalcogenides composed of fine crystallites of transition metal dichalcogenides. The reaction is run by the chemical reaction of quasi one-dimensional materials consisting of nanowires with a diameter below one micrometre, described with the formula M6CyHz, where y+z is greater than 8.2 and smaller or equal to 10, where M is a transition metal (Mo,W, Ta, Nb), C is a chalcogen (S, Se, Te)and H is a halogen (I), where the said quasi one-dimensional material is first heated in the air or otherwise in the presence of oxygen at an elevated temperature and is transformed into quasi one-dimensional metal oxides of transition metals, described with the formula MOx, where x is greater than 0.3 and smaller or equal to 3, where M is a transition metal (Mo,W, Ta, Nb) and O is oxygen; then a chemical transformation of the said quasi one-dimensional metal oxides follows in a quartz tube with a gas comprising an active reagent containing a chalcogen; the transformation takes place at an elevated temperature at which the active regent, containing a chalcogenide, exists in the vapour phase. |
| Drawings: |
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| Category: |
Nanotechnology and New Materials |
| Technology application codes: |
Physical and exact sciences |
| Market application codes: |
Industrial products, Other |
| www: |
https://worldwide.espacenet.com/patent/search/family/040586547/publication/SI22623A?q=si22623 |
| Patent offices: |
UIL RS |
