CN107265441A - A kind of graphene/Zn nano particle composite materials and preparation method thereof - Google Patents
A kind of graphene/Zn nano particle composite materials and preparation method thereof Download PDFInfo
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- CN107265441A CN107265441A CN201710515103.5A CN201710515103A CN107265441A CN 107265441 A CN107265441 A CN 107265441A CN 201710515103 A CN201710515103 A CN 201710515103A CN 107265441 A CN107265441 A CN 107265441A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y30/00—Nanotechnology for materials or surface science, e.g. nanocomposites
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2002/00—Crystal-structural characteristics
- C01P2002/50—Solid solutions
- C01P2002/52—Solid solutions containing elements as dopants
- C01P2002/54—Solid solutions containing elements as dopants one element only
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
Abstract
The invention discloses a kind of graphene/Zn nano particle composite materials and preparation method thereof, comprise the following steps：Dual temperature area tube type resistance furnace, is passed through Ar H2 CH4 for reacting gas, gas pressure intensity is 100Pa, weighs 2g zinc acetates, is placed in the high temperature furnace area of horizontal pipe furnace, and positioned at the overdraught direction of reacting gas, the stove area temperature is 975 1025 DEG C；Using two-dimensional layer graphene as substrate, the low temperature oven area of horizontal pipe furnace is placed in, and positioned at the downstream direction of reacting gas, the stove area temperature is 500 DEG C；Reaction time is 15 min；After reaction terminates, turn off heater, room temperature is naturally cooled in Ar H2 CH4 gas, obtain required product.The graphene according to made from above-mentioned preparation method/Zn nano particle composite materials, the wherein size of Zn nano particles are 37 nm, are attached on two-dimensional layer graphene, are evenly distributed.The present invention is by the way of gas phase reaction, and equipment is simple, easy to operate, it is easy to promote the use of, and accomplishes scale production.Graphene/Zn nano particle composite materials are made, cost is low, it is expected to applied in fields such as catalysis, lithium ion battery, ultracapacitor, photoelectrons.
Description
Technical field
The present invention relates to the field of compound material of grapheme material field, especially graphene and simple substance nano particle.
Background technology
Fuel cell is as new energy conversion apparatus, the metallic catalyst that electrode is mainly loaded using carbon-based material,
The CO poisonings of anode catalyst occur in the course of the work, the energy conversion efficiency of fuel cell is reduced.Compared to traditional
Carbon-based material, graphene is as a kind of typical two-dimensional material, and graphene has a high specific surface area, excellent mechanicalness,
Chemical stability, excellent electric conductivity and heat conductivity etc., in lithium ion battery, ultracapacitor, catalysis, sensing, photoelectricity etc.
Field is widely used.The composite of graphene-supported catalyst is highly active in catalytic reaction, particularly, graphene
Very big application potential is shown in catalytic field with the composite of pure metals.
Graphene is the carbon material of bi-dimensional cellular shape structure, and it not only has high-specific surface area, and defective and oxygen-containing
Functional group, strong point is provided for load nano particle, and RGO not only can prevent it from rolling into a ball as carrier with monodisperse metal nanoparticles
It is poly-, and the electric conductivity due to RGO in itself, moreover it is possible to accelerate the electric transmission between metallic and graphene, play well
Concerted catalysis effect.In the graphene of people's report and the composite of pure metals, pure metals are all Au, Ag, Pt substantially
Deng noble metal.Because the expensive and reserves of noble metal are limited etc., unfavorable factor limits it extensively using, it is necessary to find
Low cost, green and efficient metallic atom substitute noble metal.
Meanwhile, traditional graphene and the complex method of metal nanoparticle are typically employed in self-assembled nanometer grain on RGO
Son, method preparation technology is cumbersome, and can not remove the covering of nanoparticle surface.The progress of addition reducing agent is developed in recent years
The complex method of liquid-phase reduction, because liquid-phase reduction speed is whard to control, has that nano-particle pattern is not of uniform size, skewness
Even the shortcomings of.The deficiency of method made above directly affects the catalytic activity of the composite catalyst.Therefore, new method is developed,
The catalytic performance of metallic particles and graphene complex is given full play to, as the task of top priority.
The present invention provides a kind of composite of graphene/Zn nano particles, and this is a kind of new composite, the present invention
Additionally provide a kind of brand-new preparation method simple and easy to apply.
The content of the invention
The problem of for graphene in the prior art and elemental metals nano-particles reinforcement, it is contemplated that invention is a kind of new
The composite of graphene/Zn nano particles and preparation method thereof.
The invention provides a kind of graphene/Zn nano particle composite materials and preparation method thereof, comprise the following steps：
1）Dual temperature area tube type resistance furnace, is passed through Ar-H2-CH4 for reacting gas, gas pressure intensity is 100Pa, wherein Ar:H2:CH4
Intrinsic standoff ratio is 20:50:30,2g zinc acetates are weighed, the high temperature furnace area of horizontal pipe furnace is placed in, and positioned at the overdraught of reacting gas
Direction, the stove area temperature is 975-1025 DEG C；Using two-dimensional layer graphene as substrate, the low temperature oven area of horizontal pipe furnace is placed in,
And positioned at the downstream direction of reacting gas, the stove area temperature is 500 DEG C；Reaction time is 15 min；
2）After reaction terminates, turn off heater, room temperature is naturally cooled in Ar-H2-CH4 gas, obtain required production
Thing graphene/Zn nano particle composite materials.
Present invention also offers a kind of graphene/Zn nano particle composite materials according to made from above-mentioned preparation method, its
The size of middle Zn nano particles is 3-7 nm, is attached on two-dimensional layer graphene, is evenly distributed.
The useful achievement of the present invention is：
1）Graphene prepared by the present invention/Zn nano particle composite materials, Zn forms, structure and size are uniform, and are evenly distributed
On graphene layer, composite structure form is homogeneous.
2）Graphene/Zn nano particle composite materials of the present invention and preparation method thereof, by the way of gas phase reaction, only
Using two temperature tube type resistance furnace, equipment is simple, easy to operate, it is easy to promote the use of, and accomplishes scale production.
3）Graphene prepared by the present invention/Zn nano particle composite materials, cost is low, it is expected to catalysis, lithium ion battery,
Applied in the fields such as ultracapacitor, photoelectron.
Brief description of the drawings
Fig. 1 is the SEM for graphene/Zn nano particle composite materials that embodiment 1 is obtained（SEM）Figure.
Embodiment
With reference to specific embodiment and accompanying drawing, the present invention is described further.
Embodiment 1
1）Dual temperature area tube type resistance furnace, is passed through Ar-H2-CH4 for reacting gas, gas pressure intensity is 100Pa, wherein Ar:H2:CH4
Intrinsic standoff ratio is 20:50:30,2g zinc acetates are weighed, the high temperature furnace area of horizontal pipe furnace is placed in, and positioned at the overdraught of reacting gas
Direction, the stove area temperature is 1000 DEG C；Using two-dimensional layer graphene as substrate, the low temperature oven area of horizontal pipe furnace, and position are placed in
In the downstream direction of reacting gas, the stove area temperature is 500 DEG C；Reaction time is 15 min；
2）After reaction terminates, turn off heater, room temperature is naturally cooled in Ar-H2-CH4 gas, obtain required production
Thing graphene/Zn nano particle composite materials.
Embodiment 2
1）Dual temperature area tube type resistance furnace, is passed through Ar-H2-CH4 for reacting gas, gas pressure intensity is 100Pa, wherein Ar:H2:CH4
Intrinsic standoff ratio is 20:50:30,2g zinc acetates are weighed, the high temperature furnace area of horizontal pipe furnace is placed in, and positioned at the overdraught of reacting gas
Direction, the stove area temperature is 975 DEG C；Using two-dimensional layer graphene as substrate, the low temperature oven area of horizontal pipe furnace is placed in, and is located at
The downstream direction of reacting gas, the stove area temperature is 500 DEG C；Reaction time is 15 min；
2）After reaction terminates, turn off heater, room temperature is naturally cooled in Ar-H2-CH4 gas, obtain required production
Thing graphene/Zn nano particle composite materials.
Embodiment 3
1）Dual temperature area tube type resistance furnace, is passed through Ar-H2-CH4 for reacting gas, gas pressure intensity is 100Pa, wherein Ar:H2:CH4
Intrinsic standoff ratio is 20:50:30,2g zinc acetates are weighed, the high temperature furnace area of horizontal pipe furnace is placed in, and positioned at the overdraught of reacting gas
Direction, the stove area temperature is 1025 DEG C；Using two-dimensional layer graphene as substrate, the low temperature oven area of horizontal pipe furnace, and position are placed in
In the downstream direction of reacting gas, the stove area temperature is 500 DEG C；Reaction time is 15 min；
2）After reaction terminates, turn off heater, room temperature is naturally cooled in Ar-H2-CH4 gas, obtain required production
Thing graphene/Zn nano particle composite materials.
Pass through SEM（SEM）, graphene made from each embodiment/Zn nano particle composite materials are carried out
Microscopic appearance is observed.Fig. 1 is embodiment 1）The SEM of obtained graphene/Zn nano particle composite materials
（SEM）Figure.It can see in figure：The size of Zn nano particles is 3-7 nm, is attached on two-dimensional layer graphene, and distribution is equal
It is even.The size of Zn nano particles is 3-7 nm, is attached on two-dimensional layer graphene, is evenly distributed.Embodiment 2 and embodiment 3
The microscopic appearance of obtained graphene/Zn nano particle composite materials is similar with embodiment 1.
Obviously, completely and clearly described although present disclosure has been made with regard to its disclosed embodiment,
It is not limited only to this, and embodiments described above is only a part of embodiment of the invention, rather than whole embodiments.It is right
For the personnel of art, obtained institute is made improvements and substitutes to the present invention by the guidance that these are stated
There is other embodiment, among the present invention.
Claims (5)
1. a kind of graphene/Zn nano particle composite materials and preparation method thereof, it is characterised in that comprise the following steps：
1）Dual temperature area tube type resistance furnace, is passed through Ar-H2-CH4 for reacting gas, gas pressure intensity is 100Pa, weighs 2g zinc acetates,
The high temperature furnace area of horizontal pipe furnace is placed in, and positioned at the overdraught direction of reacting gas；Using two-dimensional layer graphene as substrate, put
In the low temperature oven area of horizontal pipe furnace, and positioned at the downstream direction of reacting gas, the reaction time is 15 min；
2）After reaction terminates, turn off heater, room temperature is naturally cooled in Ar-H2-CH4 gas, obtain required production
Thing graphene/Zn nano particle composite materials.
2. a kind of graphene/Zn nano particle composite materials according to claim 1 and preparation method thereof, its feature exists
In：Step 1）In be passed through reacting gas Ar-H2-CH4, wherein Ar:H2:CH4 intrinsic standoff ratios are 20:50:30.
3. a kind of graphene/Zn nano particle composite materials according to claim 1 and preparation method thereof, its feature exists
In：Step 1）Described in high temperature furnace area temperature be 975-1025 DEG C.
4. a kind of graphene/Zn nano particle composite materials according to claim 1 and preparation method thereof, its feature exists
In：Step 1）Described in low temperature oven area temperature be 500 DEG C.
5. a kind of graphene made from the preparation method according to any one of Claims 1-4/Zn nano-particles reinforcement materials
Material, it is characterised in that：Wherein the size of Zn nano particles is 3-7 nm, and graphene is two-dimensional layered structure, and Zn nano particles are attached
On lamellar graphite alkene, be evenly distributed.
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Citations (1)
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| TW201337029A (en) * | 2012-03-14 | 2013-09-16 | Nat Univ Tsing Hua | Chemical vapor deposition of graphene on dielectrics |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| TW201337029A (en) * | 2012-03-14 | 2013-09-16 | Nat Univ Tsing Hua | Chemical vapor deposition of graphene on dielectrics |
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Application publication date: 20171020 |