Method of forming nitrogen-doped porous graphene envelope

Patent metadata

Field	Value
Publication number	US-2016346769-A1
Application number	US-201615165776-A
Country	US
Kind code	A1
Filing date	May 26, 2016
Priority date	May 28, 2015
Publication date	Dec 1, 2016
Grant date	—

Abstract

Disclosed is a method of forming a nitrogen-doped porous graphene envelope. The method of forming the nitrogen-doped porous graphene envelope includes dissolving a nitrogen precursor in an organic precursor and then vaporizing the resulting precursor to thus simultaneously synthesize the graphene envelope and perform nitrogen doping in a single step.

First claim

What is claimed is:

1 . A method of forming a nitrogen-doped porous graphene envelope, the method comprising:
(S1) vaporizing an organic precursor and a nitrogen precursor to form the graphene envelope in a vaporizer; (S2) providing substrate particles in a reactor, in which synthesis is to be performed, and then heating the reactor to increase a temperature to a final reaction temperature; and (S3) supplying the organic precursor and the nitrogen precursor of step (S1) using a carrier gas to the reactor of step (S2) and maintaining the reactor for a predetermined time.

2 . The method of claim 1 , wherein the substrate particles are a platinum-supported carbon black catalyst, metal nanoparticles for catalyst reforming, or silicon nanoparticles for a secondary battery electrode.

3 . The method of claim 2 , wherein the metal nanoparticles are nickel-supported alumina particles.

4 . The method of claim 1 , wherein the organic precursor is a liquid precursor selected from the group consisting of ethanol, methanol, acetylene, and acetone.

5 . The method of claim 1 , wherein the nitrogen precursor is pyridine.

6 . The method of claim 1 , wherein the step (S1) includes vaporizing a precursor solution which includes the nitrogen precursor dissolved in the organic precursor.

7 . The method of claim 1 , wherein the temperature of the reactor is increased to 400 to 1100° C. during the step (S2).

8 . The method of claim 1 , wherein the carrier gas is an oxygen, hydrogen, argon, helium, or nitrogen gas.

Assignees

• Korea Energy Research Inst

Inventors

• Kim Hee-Yeon
• Jang Bo-Yun
• Kwon Guk Hyeon

Classifications

• H01M4/134 Primary

  Electrodes based on metals, Si or alloys · CPC title

• H01M4/8673

  Electrically conductive fillers · CPC title

• H01M4/386

  Silicon or alloys based on silicon · CPC title

• H01M4/625

  Carbon or graphite · CPC title

• H01M4/926

  on carbon or graphite · CPC title