Manganese tetrathiotungstate material

• US 8,597,608 B2
• Filed: 01/21/2011
• Issued: 12/03/2013
• Est. Priority Date: 01/21/2010
• Status: Active Grant

• Current Assignee: Shell USA Incorporated (Shell Plc)
• Original Assignee: Shell Oil Company (Shell Plc)
• Inventors: Reynolds, Michael Anthony, Donaho, Charles Roy
• Primary Examiner(s): VANOY, TIMOTHY C
• Application Number:
  US13/010,879
• Publication Number:
  US 20110177334A1
• Time in Patent Office: 1,047 Days
• Field of Search: 423/511, 502/219
• US Class Current: 423/511
• CPC Class Codes: B01J 27/047 with chromium, molybdenum, tungsten or polonium
• CPC Class Codes: B01J 35/40 characterised by dimensions, e.g. grain size in a colloidal state B01J35/23; crystallite size B01J35/77
• CPC Class Codes: B01J 35/45 Nanoparticles
• CPC Class Codes: B01J 35/58 Fabrics or filaments
• CPC Class Codes: B01J 35/613 10-100 m2/g
• CPC Class Codes: B01J 35/615 100-500 m2/g
• CPC Class Codes: B01J 37/082 Decomposition and pyrolysis
• CPC Class Codes: C01G 45/006 Compounds containing, besides manganese, two or more other elements, with the exception of oxygen or hydrogen manganates, manganites or permanganates C01G45/12
• CPC Class Codes: C10G 33/02 with electrical or magnetic means
• CPC Class Codes: C10G 47/02 characterised by the catalyst used
• CPC Class Codes: C10G 47/06 Sulfides
• CPC Class Codes: Y10T 428/29 Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
• CPC Class Codes: Y10T 428/298 Physical dimension

Abstract

The present invention is directed to a manganese tetrathiotungstate composition.

Claims

1. A composition comprising a material comprised of manganese tetrathiotungstate.

2. The composition of claim 1 in which manganese and tungsten of the manganese tetrathiotungstate material are bridged by, and bonded to, sulfur atoms according to formula (I)

3. The composition of claim 1 in which the manganese tetrathiotungstate material is comprised of at least three linked chain elements, the chain elements being comprised of a first chain element including manganese and having a structure according to formula (II) and a second chain element including tungsten and having a structure according to formula (III)manganese and tungsten of the manganese tetrathiotungstate material are bridged by, and bonded to, sulfur atoms according to the formula (II)

4. The composition of claim 1 wherein the manganese tetrathiotungstate material of the present invention is comprised of monomeric units that repeat in the material to form a polymer, where a monomeric unit is comprised of tungsten and manganese, where the tungsten and the manganese are bridged by, and bonded to, two sulfur atoms according to formula (IV)

5. The composition of claim 4 wherein x is at least 5.

6. The composition of claim 1 wherein the manganese tetrathiotungstate material is in the form of a plurality of fibers.

7. The composition of claim 6 wherein at least of portion of the fibers of the plurality of fibers have a width of up to 20 nm and a length of at least 100 nm.

8. The composition of claim 1 wherein the manganese tetrathiotungstate material has a BET surface area of from 50 m²/g to 500 m²/g.

9. The composition of claim 1 in which the manganese tetrathiotungstate material contains at most 0.01 wt. % oxygen.

10. The composition of claim 1 in which the manganese tetrathiotungstate material contains less than 0.5 wt. % of an alkali metal or an alkaline earth metal.

11. The composition of claim 1 wherein the manganese tetrathiotungstate material is at least 50% crystalline.

12. The composition of claim 1 containing contains less than 0.5 wt. % of ligands other than sulfur-metal bonded complexes between sulfur and manganese and between sulfur and tungsten.

13. The composition of claim 1 in which the manganese tetrathiotungstate material is comprised of alternating MnS₄ and WS₄ tetrahedral formations located adjacent to each other, where the metal of each tetrahedral formation is bonded to at least two sulfur atoms that are also bonded to the metal of an adjacent tetrahedral formation.

14. The composition of claim 1 wherein the manganese tetrathiotungstate material is acicular.