Low-temperature preparation method of graphene and graphene-based composite material

Xianbo Jin

Patent

Atlas literature

Patent

US 9,580,324

Low-temperature preparation method of graphene and graphene-based composite material

Xianbo Jin

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

3 independent · 10 dependent

2
Dependent← claim 1graphite oxideH₂SO₄
2. The method according to claim 1, characterized in that the compound of graphite oxide and sulfuric acid is a compound obtained by soaking graphite oxide i n sulf u ric acid and then perform in g solid-liquid separa ti on.
1. 6
  Dependent← claim 2
  6. (Orig in al) T he method according to claim 2, char acterized in that the h eat treatment lasts for 0.5-40min.
2. 7
  Dependent← claim 2graphite oxideH₂SO₄
  The method according to claim 2, characterized in that, in the compound of g raphite oxide and sulfuric acid, s ul fur in the sulf u ric acid is 1%-9% of the total mass of graphite oxide and sulfuric acid.
3
Dependent← claim 1graphite oxideH₂SO₄graphite
The method accordin g to claim 1, characterized in that the compound of graphite oxide and sulfuric acid is a compound obtained by oxidizing graphite i n a system containing s ulfu ric acid into graphite oxide and the n perf orming solid- liquid separation.
1. 8
  Dependent← claim 3
  8. Th e method according to claim 3, characterized in that the h eat treatment lasts for 0.5-40 min.
2. 9
  Dependent← claim 3graphite oxideH₂SO₄
  The m ethod according to claim 3, characterized in that, in the compound of graphite o xide and s ultfuri c acid, sulfur in the sulf uric acid is 1%- 9% of t he to tal mass of graphite oxide and su l furic acid. Page 2 of
4
Dependent← claim 1
The met h od accordin g to claim 1, characterized in that the h eat treatment lasts for 0.5- 40m in.
5
Dependent← claim 1graphite oxideH₂SO₄
5. (O riginal) The m ethod according to claim 1, characterized in that, in the compound of g raphite oxide and sulfuric acid, sulf u r in the sulfuric acid is 1 %-9% of the total mass of graphite oxide and sulfuric acid.
10
Independentgraphite oxideH₂SO₄graphenegraphene-based composite material
A low -te m perat ure prep arati on method of graphene-based composite material, c omprising the following steps of: dispersing graphite oxide, sulfu ric acid and substance to he compounded in a dispersing medium so that the graphite oxide, the sulfuric ac id and the substance to be compounded are mixed with each other in frma of molecules or colloid particles, then separating oﬀ the dispersing medium, and performing he at treatmen t i n eith er normal pressure or negative pressure at 50-400*C so th at t he graphite oxide is converte d i nto graphenie, so as to obtaini the graphene-base d c omposite material
1. 11
  Dependent← claim 10
  The prep arati on m eth od according to claim 10, c h ara c ter ize d i n that the substance to be compoundced iaprpar d i s prepared in situ in th e di spe rsi ng medium.
12
Dependent← claim 1substance to be compounded
The prepa rati on method according to claim 1 0, ch ara cterized in that substance to be compounde d c omprises one or more of metal oxide, metal sulﬁde, transmission metal, i norganic monomer, ionic liquid and organic polymer.
13
Independentsubstance to be compounded
The preparation method according to cl aim SVG 14634742.10-04-2016.ITX₈₉₄ILPXXIFW2.CLM.2.17.1621.1528.1632.1564.svg 0.12 0.037 Chemistry Black and white 1, characterized in that substance to be compounded cormprises One Or more of metal oxide, meal sulﬁde, transm issi on metal, i norgan ic monome r, ionic liqu id and organic polymer
14
Independentgraphite oxideH₂SO₄graphenegraphene-based composite material
1 5. A low-temperature preparation method of graphene-based composite material, comprising the following st eps of: dispersing graphite oxide, sulfuric acid and a precursor of a substance to be compounded into a solution or colloid so tha t t he graphite oxide, t he sulfuric aci d an d t he precarsor of the substance to be compounded are mixed with each other in form of molecules or colloid particles, then separating of th e di spe rsi ng medium, a nd performing heat treatment in either normal pressure or negative pressure at 50-400" C so that the graphite o xid e is converte d i nto graphene and the precursor of the substance to be compounde d is c onverted into the substance to be compounded, so as to obtain the graphene-based composite materia l, wherein the

Materials

Materials described outside the worked examples.

graphite oxide

Precursor

sulfuric acid

H₂SO₄

Process steps

Additional fabrication and treatment steps described in the patent.

Thermal Reduction

Step 1

Temperature

50, 400°C

Duration

0.5, 40 min

Reported properties

Performance values and ranges asserted in the specification or claims.

Property	Value	Material
Duration	0.5–40 min	—

Why these are connected

Related documents with shared materials, methods, properties, or citations.

Low-temperature preparation method of graphene and graphene-based composite material | Matter42 Literature