Rhenium (IV) sulphide nanotube material and method of preparation

• US 6,887,453 B2
• Filed: 08/13/2003
• Issued: 05/03/2005
• Est. Priority Date: 08/24/2002
• Status: Expired due to Fees

• Current Assignee: Haldor Topsã¸E A/S (Haldor Topsã¸E Holding A/S)
• Original Assignee: Haldor Topsã¸E A/S (Haldor Topsã¸E Holding A/S)
• Inventors: Brorson, Michael, Jacobsen, Claus J. H., Hansen, Thomas Willum
• Primary Examiner(s): Silverman, Stanley S.
• Assistant Examiner(s): Hertzog, Ardith E.
• Application Number:
  US10/639,518
• Publication Number:
  US 20050036937A1
• Time in Patent Office: 629 Days
• Field of Search: 423/561.1, 977/DIG.1
• US Class Current: 423/561.1
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: C01G 47/00 Compounds of rhenium
• CPC Class Codes: C01P 2002/78 by stacking-plane distances or stacking sequences
• CPC Class Codes: C01P 2004/04 obtained by TEM, STEM, STM or AFM
• CPC Class Codes: C01P 2004/13 Nanotubes
• CPC Class Codes: C01P 2004/64 Nanometer sized, i.e. from 1-100 nanometer
• CPC Class Codes: Y10S 977/734 Fullerenes, i.e. graphene-based structures, such as nanohorns, nanococoons, nanoscrolls or fullerene-like structures, e.g. WS2 or MoS2 chalcogenide nanotubes, planar C3N4, etc.
• CPC Class Codes: Y10S 977/813 Of specified inorganic semiconductor composition, e.g. periodic table group IV-VI compositions

Abstract

A rhenium (IV) sulphide (ReS₂) nanotube material and a method of preparation of the rhenium (IV) sulphide (ReS₂) nanotube material. The rhenium (IV) sulphide (ReS₂) nanotube material comprises hollow cylinders of concentric rhenium (IV) sulphide layers, the ReS₂ interlayer distance being between 0.5 to 0.7 nm. Each ReS₂ layer consists of a layer of rhenium atoms sandwiched between two layers of sulfur atoms.

Claims

1. Rhenium (IV) sulphide (ReS₂) nanotube material comprising hollow cylinders of concentric rhenium (IV) sulphide layers, the ReS₂ interlayer distance between 0.5 to 0.7 nm, each ReS₂ layer consisting of a layer of rhenium atoms sandwiched between two layers of sulphur atoms.

2. Rhenium (IV) sulphide nanotube material of claim 1, wherein the inner diameter of the nanotube is between 2 to 500 nm.

3. Rhenium (IV) sulphide nanotube material of claim 1 containing 1-50 concentric layers.

4. Rhenium (IV) sulphide nanotube material of claim 1 comprising a nanotube template material.

5. Method for the preparation of rhenium (IV) sulphide nanotube material comprising hollow cylinders of concentric rhenium (IV) sulphide layers, the method comprising the steps of:

(a) providing a nanotube template material;

(b) impregnating the template material with a rhenium-containing solution;

(c) drying the impregnated template material; and

(d) treating the dried material from step (c) with a sulphiding agent.

6. Method of claim 5 wherein the nanotube template material comprises carbon.

7. Method of claim 6 wherein the carbon nanotube template material is single-walled or multi-walled.

8. Method of claim 5 wherein the nanotube template material has an inner or outer diameter between 2 to 500 nm.