One-dimensional nano-chain structure and preparing method thereof

Patent metadata

Field	Value
Publication number	US-11155472-B2
Application number	US-201916591695-A
Country	US
Kind code	B2
Filing date	Oct 3, 2019
Priority date	Oct 11, 2018
Publication date	Oct 26, 2021
Grant date	Oct 26, 2021

Abstract

The present disclosure relates to a one-dimensional nano-chain structure including a single crystal structure as a minimum repeat unit structure.

First claim

We claim:

1. A one-dimensional nano-chain structure including a single crystal structure as a minimum repeat unit structure,
wherein the one-dimensional nano-chain structure does not have a dangling bond on its lateral surface and a plurality of the one-dimensional nano-chain structures can be bonded to each other by a van der Waals force, and
wherein the minimum repeat unit structure is repeated in one direction only, and is represented by the following Chemical Formula 1:
M 2 X 9   [Chemical Formula 1]

(In the above Chemical Formula 1, M is V, Nb, Ta, or Db, and X is S, Se, Te, or Po).

2. The one-dimensional nano-chain structure of claim 1 , wherein the one-dimensional nano-chain structure has a thickness of 10 nm or less.

3. The one-dimensional nano-chain structure of claim 1 , wherein the minimum repeat unit structure includes an inorganic molecule.

4. The one-dimensional nano-chain structure of claim 1 , wherein the one-dimensional nano-chain structure includes a unit structure selected from the group consisting of V 2 Se 9 , Nb 2 Se 9 , Ta 2 Se 9 , Db 2 Se 9 , V 2 Te 9 , Nb 2 Te 9 , Ta 2 Te 9 , Db 2 Te 9 , and combinations thereof.

5. A one-dimensional nanostructure bundle in which one-dimensional nano-chain structures of claim 1 are bonded by a van der Waals force.

6. A one-dimensional nano-chain structure including a single crystal structure as a minimum repeat unit structure, comprising
a plurality of minimum repeat unit structures, each minimum repeat unit structure comprising at least a metal cation and an anion,
wherein:
the plurality of minimum repeat unit structures consist of individual minimum repeat unit structures that are sequentially linked end to end to form a metal cationic chain structure,
the metal cationic chain structure consists of metal cations from the sequentially linked individual minimum repeat unit structures,
the metal cationic chain structure extends linearly in one dimension,
the metal cationic chain structure is surrounded by anions from the sequentially linked individual minimum repeat unit structures, and
the metal cationic chain structure is covalently bonded to the anions, and

wherein the minimum repeat unit structure is represented by the following Chemical Formula 1:
M 2 X 9   [Chemical Formula 1]

(In the above Chemical Formula 1, M is V, Nb, Ta, or Db, and X is S, Se, Te, or Po).

Assignees

• Research & Business Found Sungkyunkwan Univ

Inventors

• Choi Jae-Young
• Chae Sudong
• Oh Seungbae
• Kim Bum Jun

Classifications

• C01B19/007 Primary

  Tellurides or selenides of metals (C01B19/002 takes precedence) · CPC title

• C01G33/00

  Compounds of niobium · CPC title

• C01G35/00

  Compounds of tantalum · CPC title

• C01P2004/10

  extending in one dimension, e.g. needle-like · CPC title

• C01B35/14

  Compounds containing boron and nitrogen, phosphorus, sulfur, selenium or tellurium · CPC title