CN110838572A - Nano composite material and preparation method and application thereof - Google Patents

Nano composite material and preparation method and application thereof Download PDF

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CN110838572A
CN110838572A CN201810926877.1A CN201810926877A CN110838572A CN 110838572 A CN110838572 A CN 110838572A CN 201810926877 A CN201810926877 A CN 201810926877A CN 110838572 A CN110838572 A CN 110838572A
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rhenium
nanocomposite
precursor
composite material
black powder
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CN110838572B (en
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刘学涌
蔡翔
陈桦
叶勇
郑子杰
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Shenzhen National Energy New Material Technology Research And Development Center Co Ltd
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Shenzhen National Energy New Material Technology Research And Development Center Co Ltd
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/362—Composites
    • H01M4/366—Composites as layered products
    • 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
    • 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
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B32/00—Carbon; Compounds thereof
    • C01B32/15—Nano-sized carbon materials
    • C01B32/182—Graphene
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M10/00—Secondary cells; Manufacture thereof
    • H01M10/05—Accumulators with non-aqueous electrolyte
    • H01M10/052—Li-accumulators
    • H01M10/0525—Rocking-chair batteries, i.e. batteries with lithium insertion or intercalation in both electrodes; Lithium-ion batteries
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/581—Chalcogenides or intercalation compounds thereof
    • H01M4/5815—Sulfides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/36—Selection of substances as active materials, active masses, active liquids
    • H01M4/58—Selection of substances as active materials, active masses, active liquids of inorganic compounds other than oxides or hydroxides, e.g. sulfides, selenides, tellurides, halogenides or LiCoFy; of polyanionic structures, e.g. phosphates, silicates or borates
    • H01M4/583—Carbonaceous material, e.g. graphite-intercalation compounds or CFx
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M4/00—Electrodes
    • H01M4/02—Electrodes composed of, or comprising, active material
    • H01M4/62—Selection of inactive substances as ingredients for active masses, e.g. binders, fillers
    • H01M4/624—Electric conductive fillers
    • H01M4/625—Carbon or graphite
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10—Energy storage using batteries

Abstract

The preparation method of the nano composite material provided by the invention comprises the steps of mixing a rhenium precursor, a sulfur precursor and hydroxylamine hydrochloride in deionized water to obtain a mixture solution; adding an aqueous graphene oxide suspension to the mixture solution to obtain a mixed suspensionA body; sealing the mixed suspension, treating the mixed suspension in a high-temperature environment, cooling to room temperature, and collecting black powder; cleaning the black powder and drying to obtain the nano composite material, wherein the nano composite material is of a sandwich structure, the middle layer of the nano composite material is reduced graphene oxide, and the upper layer and the lower layer of the nano composite material are rhenium sulfide+The storage capacity has excellent capacity and low potential multiplying power capacity, and can be used for the negative electrode of the lithium ion battery.

Description

Nano composite material and preparation method and application thereof
Technical Field
The invention relates to the technical field of composite materials, in particular to a nano composite material and a preparation method thereof.
Background
Due to the unique structure and photoelectric properties of graphene, graphene becomes a research hotspot in the fields of carbon materials, nanotechnology, condensed physical and functional materials and the like. Graphene is used as the thinnest, the largest strength and the strongest novel nano material with electric conduction and heat conduction performances, is called as 'black gold', is the king of a new material, and has the theoretical specific surface area up to 2630m2And/g, can be used for effect transistors, electrode materials, composite materials, liquid crystal display materials, sensors and the like.
Graphene refers to a single layer of graphite in the narrow sense, having a thickness of 0.335nm and only one layer of carbon atoms, but actually a graphite structure within 10 layers may be referred to as graphene. And more than 10 layers are called graphite thin films. Each carbon atom of the graphene is hybridized by sp2, contributes to the rest of hybridization and contributes to the rest of p orbital electrons to form pi bonds, and the pi electrons can move freely, so that the graphene is endowed with excellent conductivity. Because the acting force between the atoms is very strong, even if the surrounding carbon atoms collide at normal temperature, the interference of electrons in the graphene is small. The material is not easy to scatter during transmission, is about 140 times of the electron mobility in silicon, has the conductivity of 106s/m, is the material with the best conductivity at normal temperature, and can be applied to the manufacture of various electronic components.
Although graphite provides stable cycling performance in commercial lithium batteries (LIBs), it is theorized that it is very specificConstant volume (372mA hg)-1) And modest rate capabilities have not kept up with the ever-increasing demand for higher energy and power densities in emerging devices.
Disclosure of Invention
Accordingly, there is a need to provide a method for preparing a nanocomposite material with better capacity and low specific energy.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method of preparing a nanocomposite comprising the steps of:
mixing a rhenium precursor, a sulfur precursor and hydroxylamine hydrochloride in deionized water to obtain a mixture solution;
adding a graphene oxide aqueous suspension to the mixture solution to obtain a mixed suspension;
sealing the mixed suspension, treating the mixed suspension in a high-temperature environment, cooling to room temperature, and collecting black powder;
and cleaning the black powder and then drying to obtain the nano composite material.
In some preferred embodiments, in the step of mixing the rhenium precursor, the sulfur precursor, and the hydroxylamine hydrochloride salt in deionized water to obtain a mixture solution,
the rhenium precursor comprises at least one of ammonium perrhenate, rhenium trichloride, rhenium pentachloride, potassium perrhenate, methyl rhenium trioxide, penta-carbonyl rhenium bromide, penta-carbonyl rhenium chloride or deca-carbonyl rhenium dichloride.
In some preferred embodiments, in the step of mixing the rhenium precursor, the sulfur precursor or the amino acid and the hydroxylamine hydrochloride salt in the deionized water to obtain the mixture solution, the sulfur precursor is at least one of thiourea or thioacetamide or amino acid.
In some preferred embodiments, the amino acid is cysteine.
In some preferred embodiments, in the step of mixing the rhenium precursor, the sulfur precursor or the amino acid and the hydroxylamine hydrochloride salt in the deionized water to obtain the mixture solution, the mass ratio of the rhenium precursor, the sulfur precursor or the amino acid and the hydroxylamine hydrochloride salt is 1: (2-40): (2-100).
In some preferred embodiments, the step of cooling to room temperature after sealing and treating the mixed suspension in a high temperature environment, and collecting the black powder, wherein the temperature of the high temperature environment is 160-250 ℃.
In some preferred embodiments, in the step of collecting the black powder after the mixed suspension is sealed and treated in a high temperature environment and cooled to room temperature, the black powder is collected by centrifugation.
In some preferred embodiments, the step of drying after cleaning the black powder to obtain the nanocomposite material specifically comprises:
and washing the black powder with deionized water and ethanol, and drying at the temperature of 70-100 ℃ for more than 12 hours in vacuum to obtain the nano composite material.
On the other hand, the invention also provides a nano composite material prepared by the preparation method of the nano composite material, wherein the nano composite material is of a sandwich structure, the middle layer of the nano composite material is reduced graphene oxide, and the upper layer and the lower layer of the nano composite material are rhenium sulfide.
In addition, the invention also provides an application of the nano composite material, and the nano composite material can be used for battery materials.
The invention adopts the technical scheme that the method has the advantages that:
the preparation method of the nano composite material provided by the invention comprises the steps of mixing a rhenium precursor, a sulfur precursor or amino acid and hydroxylamine hydrochloride in deionized water to obtain a mixture solution; adding a graphene oxide aqueous suspension to the mixture solution to obtain a mixed suspension; sealing the mixed suspension, treating the mixed suspension in a high-temperature environment, cooling to room temperature, and collecting black powder; cleaning and drying the black powder to obtain the nano composite material, wherein the nano composite material is of a sandwich structure, the middle layer of the nano composite material is reduced graphene oxide, and the upper layer and the lower layer of the nano composite material are rhenium sulfideThe provided nanocomposite has reversible Li due to synergistic effect of 2D-2D nano-scale structure generated on graphene+The memory has excellent capacity and low-potential capability, and can be used for the anode of a lithium ion battery.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a flow chart illustrating the steps of a method for preparing a nanocomposite according to an embodiment of the present invention.
Fig. 2 is a schematic structural diagram of a nanocomposite 20 according to an embodiment of the present invention.
FIGS. 3(a), (b), (c), (d) are scanned images of v-ReS2/rGO according to embodiments of the present invention.
FIG. 4(a) is a graph of the v-ReS2/rGO Cyclic Voltammetry (CV) provided by an embodiment of the present invention.
FIG. 4(b) is a graph of current discharge curves for v-ReS2/rGO electrode current density provided by an embodiment of the present invention.
FIG. 4(c) is a schematic of the cycling performance of the ReS2, rGO and v-ReS2/rGO electrodes provided by embodiments of the present invention.
FIG. 4(d) is a graphical representation of the rate capability of the ReS2 and v-ReS2/rGO electrodes provided by embodiments of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1, a flow chart of steps of a method 10 for preparing a nanocomposite according to an embodiment of the present invention includes the following steps:
step S110: and mixing the rhenium precursor, the sulfur precursor and the hydroxylamine hydrochloride in deionized water to obtain a mixture solution.
In some preferred embodiments, the rhenium precursor includes at least one of ammonium perrhenate, rhenium trichloride, rhenium pentachloride, potassium perrhenate, rhenium methyltrioxide, rhenium pentacarbonyl bromide, rhenium pentacarbonyl chloride, or rhenium decacarbonyl.
In some preferred embodiments, the sulfur precursor is at least one of thiourea or thioacetamide or an amino acid.
In some preferred embodiments, the amino acid is cysteine.
In some preferred embodiments, the mass ratio of the rhenium precursor to the sulfur precursor to the hydroxylamine hydrochloride salt is 1: (2-40): (2-100).
Step S120: adding a graphene oxide aqueous suspension to the mixture solution to obtain a mixed suspension;
in some preferred embodiments, the aqueous graphene oxide suspension is prepared from natural graphite powder (325 mesh) using known techniques.
Step S130: sealing the mixed suspension, treating the mixed suspension in a high-temperature environment, cooling to room temperature, and collecting black powder;
specifically, the mixed suspension is transferred into a 20mL stainless steel sterilizer, after sealing, the autoclave is placed into an electric oven preheated to 160-250 ℃, then kept for 8 hours, naturally cooled to room temperature, and collected by a centrifugation method to obtain black powder.
Step S140: and cleaning the black powder and then drying to obtain the nano composite material.
Specifically, the black powder is washed by deionized water and ethanol, and dried at 70-100 ℃ in vacuum for more than 12 hours to obtain the nanocomposite.
Fig. 2 is a schematic structural diagram of a nanocomposite 20 according to an embodiment of the present invention.
As can be seen from fig. 2, the nanocomposite (v-ReS2/rGO) prepared by the above method is a sandwich structure, the intermediate layer 210 of the nanocomposite is reduced graphene oxide (rGO), and the upper layer 220 and the lower layer 230 are rhenium sulfide (ReS 2).
Refer to FIGS. 3(a) and (b), which are scanned images of v-ReS2/rGO prepared according to the present invention.
As can be seen from fig. 3(a) and (b), the ReS2 nanoflakes are uniformly and vertically distributed over the entire surface of rGO, both sides of rGO can easily enter the precursor cells of ReS2 to form a pincerlike structure, since rGO is freely suspended in a hot aqueous solution, whereas rGO is tightly packed by the ReS2 nanosheets of few layers and forms a large number of micro-sized voids in the aligned v-ReS2/rGO layers. The typical height of the ReS 2nm table is estimated to be 50 nm (fig. 3(a)), and the structure consists of 6 separate layers of ReS2 (fig. 3 (b)).
It will be appreciated that this sandwich-like structure, similar to a bovine sandwich, has few layers of ReS2 nanoflakes perpendicular to the rGO surface, so that the layered structure and interlayer spacing can be directly observed.
Referring to FIG. 3(c), a high resolution TEM image of v-ReS2/rGO, it can be seen from FIG. 3(c) that the spacing between two adjacent ReS2 layers is 0.62nm, and the 0.34nm lattice edge in the rGO of FIG. 3(c) shows the graphitic crystal structure of rGO.
Referring to fig. 3(d), a v-ReS2/rGO energy dispersive x-ray spectrum, it can be seen from fig. 4 that Re and S are uniformly distributed throughout the rGO region, confirming that few layers of ReS2 nanosheets are uniformly fixed on the rGO matrix.
FIG. 4(a) is a graph showing the Cyclic Voltammetry (CV) of v-ReS2/rGO prepared according to the present invention.
As can be seen from FIG. 4(a), for V-ReS2/rGO, the corresponding irreversible soluble-electrolyte-interface (SEI) or LixReS2 formation at 0.78V (first peak) cathode scan is reduced to Li2S and metal Re. Intensity of reduction peakBecoming weaker in the second cycle and almost absent from the third cycle. In addition, two pairs of redox peaks, at 1.3 and 1.8V and 1.9 and 2.4, respectively, are attributable to LixReS2/ReS2 and li2Reversible redox reaction of S/S.
FIG. 4(b) is a graph showing the current discharge curve of the current density of the v-ReS2/rGO electrode prepared according to the present invention.
As can be seen from fig. 4(b), the initial cycle showed a coulombic efficiency of 71%, while in all cycles, except the first discharge, there was no voltage plateau present, indicating that irreversible capacity was formed by SEI, and the irreversible reverse reaction of ReS 2. The repeatable voltage was stabilized at 1.9 and 2.4V, consistent with the li2s/s redox couple on the CV curve, indicating excellent reversibility of the V-ReS2/rGO electrode.
FIG. 4(c) is a schematic of the cycling performance of the ReS2, rGO and v-ReS2/rGO electrodes.
As can be seen from fig. 4(c), its potential range is 0. 01-3.00V, in 100 of 100 cycles. In the first discharge cycle, the v-ReS2/rGO electrode has a very high specific capacity 1219 mAh-1. After the initial activation period, the discharge capacity decreased to 1009mAh-1 in the 15 th cycle and stabilized within 100 cycles of 927 mAh-1. The coulombic efficiency remained at 99%, indicating negligible side effects during each charge cycle. In contrast, the pure ReS2 electrode only achieved a discharge capacity of 392mAh under the same conditions. Subtracting the limited capacity of the rGO electrode, the cycling capability of the superior v-ReS2/rGO electrode, due to the synergistic effect of the intimate relationship, some layered v-ReS2/rGO composite a high performance free display anode number advantage, e.g., high conductivity of rGO, some layered other nanosheets of good lithium storage function, high structural stability, and excellent electrochemical activity of the v-ReS2/rGO composite.
FIG. 4(d) is a graph showing the rate capability of the ReS2 and v-ReS2/rGO electrodes.
As can be seen from FIG. 4(d), at the present densities of 0.2, 0.5, 1, 2 and 5 g-1When the v-ReS2/rGO electrode provides 921, 812, 686,547 and 375mAh, respectively. If the current density is reduced to 0.2g-1Then the v-ReS2/rGO electrode will recover its final 912mAh-1 capacity. These results indicate that v-ReS2/rGO has excellent reversibility in the current study.
The preparation method of the nano composite material provided by the invention comprises the steps of mixing a rhenium precursor, a sulfur precursor or amino acid and hydroxylamine hydrochloride in deionized water to obtain a mixture solution; adding a graphene oxide aqueous suspension to the mixture solution to obtain a mixed suspension; sealing the mixed suspension, treating the mixed suspension in a high-temperature environment, cooling to room temperature, and collecting black powder; and cleaning the black powder and drying to obtain the nano composite material, wherein the nano composite material is of a sandwich structure, the middle layer of the nano composite material is reduced graphene oxide, the upper layer and the lower layer of the nano composite material are rhenium sulfide, and due to the synergistic effect of a 2D-2D nano-scale structure generated on the graphene, the nano composite material has a reversible Li + memory, has excellent capacity and low-potential rate capability, and can be used for the anode of a lithium ion battery.
The above technical solution of the present invention is described in detail with reference to specific examples.
Example 1
According to the mass ratio of 1: 2: 2, mixing ammonium perrhenate (NH)4ReO4, 98%, Wengjiang Chemicals, Inc.), Thiourea ((NH)2CSNH299% of alpha) and hydroxylamine hydrochloride (NH2OH HCl, 99% of alatin) were mixed in 12ml of deionized water to obtain a mixture solution;
adding 3ml of the mixture solution with the concentration of 4mg ml-1A graphene oxide aqueous suspension to obtain a mixed suspension;
transferring the mixed suspension into a 20mL stainless steel sterilizer, sealing, placing the autoclave into an electric oven preheated to 160 ℃, keeping for 8 hours, naturally cooling to room temperature, and collecting black powder by a centrifugal method;
the black powder was washed with deionized water and ethanol and dried in vacuum at a temperature of 70 degrees celsius for more than 12 hours to obtain the nanocomposite.
Example 2
According to the mass ratio of 1: 40: 100, mixing rhenium trichloride, thioacetamide and hydroxylamine hydrochloride (NH2OH HCl, 99 percent, Allantin company) in 12ml of deionized water to obtain a mixture solution;
adding 3ml of the mixture solution with the concentration of 4mg ml-1A graphene oxide aqueous suspension to obtain a mixed suspension;
transferring the mixed suspension into a 20mL stainless steel sterilizer, sealing, placing the autoclave into an electric oven preheated to 250 ℃, keeping for 8 hours, naturally cooling to room temperature, and collecting black powder by a centrifugal method;
the black powder was washed with deionized water and ethanol and dried in vacuum at 100 degrees celsius for more than 12 hours to obtain the nanocomposite.
Example 3
According to the mass ratio of 1: 20: 60, mixing rhenium pentachloride, cysteine and hydroxylamine hydrochloride (NH2OH HCl, 99 percent, Allantin company) in 12ml of deionized water to obtain a mixture solution;
adding 3ml of the mixture solution with the concentration of 4mg ml-1A graphene oxide aqueous suspension to obtain a mixed suspension;
transferring the mixed suspension into a 20mL stainless steel sterilizer, sealing, placing the autoclave into an electric oven preheated to 200 ℃, keeping for 8 hours, naturally cooling to room temperature, and collecting black powder by a centrifugal method;
the black powder was washed with deionized water and ethanol and dried in vacuum at 80 degrees celsius for more than 12 hours to obtain the nanocomposite.
Example 4
According to the mass ratio of 1: 30: 50, mixing methyl rhenium trioxide, cysteine and hydroxylamine hydrochloride (NH2OH HCl, 99 percent, Allantin company) in 12ml of deionized water to obtain a mixture solution;
adding 3ml of the mixture solution with the concentration of 4mg ml-1A graphene oxide aqueous suspension to obtain a mixed suspension;
transferring the mixed suspension into a 20mL stainless steel sterilizer, sealing, placing the autoclave into an electric oven preheated to 220 ℃, keeping for 8 hours, naturally cooling to room temperature, and collecting black powder by a centrifugal method;
the black powder was washed with deionized water and ethanol and dried in vacuum at a temperature of 90 degrees celsius for more than 12 hours to obtain the nanocomposite.
Of course, the method for preparing the nanocomposite material of the present invention may have various changes and modifications, and is not limited to the specific structure of the above embodiment. In conclusion, the scope of the present invention should include those changes or substitutions and modifications which are obvious to those of ordinary skill in the art.

Claims (10)

1. A method for preparing a nanocomposite, comprising the steps of:
mixing a rhenium precursor, a sulfur precursor and hydroxylamine hydrochloride in deionized water to obtain a mixture solution;
adding a graphene oxide aqueous suspension to the mixture solution to obtain a mixed suspension;
sealing the mixed suspension, treating the mixed suspension in a high-temperature environment, cooling to room temperature, and collecting black powder;
and cleaning the black powder and then drying to obtain the nano composite material.
2. The method of preparing a nanocomposite as claimed in claim 1, wherein in the step of mixing the rhenium precursor, the sulfur precursor, and the hydroxylamine hydrochloride salt in deionized water to obtain a mixture solution,
the rhenium precursor comprises at least one of ammonium perrhenate, rhenium trichloride, rhenium pentachloride, potassium perrhenate, methyl rhenium trioxide, penta-carbonyl rhenium bromide, penta-carbonyl rhenium chloride or deca-carbonyl rhenium dichloride.
3. The method of claim 1, wherein the step of mixing a rhenium precursor, a sulfur precursor or an amino acid and hydroxylamine hydrochloride in deionized water to obtain a mixture solution, the sulfur precursor is at least one of thiourea or thioacetamide or an amino acid.
4. The method of claim 3, wherein the amino acid is cysteine.
5. The method according to claim 1, wherein in the step of mixing a rhenium precursor, a sulfur precursor or an amino acid and a hydroxylamine hydrochloride salt in deionized water to obtain a mixture solution, the mass ratio of the rhenium precursor, the sulfur precursor or the amino acid and the hydroxylamine hydrochloride salt is 1: (2-40): (2-100).
6. The method of claim 1, wherein the step of cooling to room temperature after sealing and treating the mixed suspension in a high temperature environment, and collecting the black powder, the high temperature environment being at a temperature of 160 to 250 ℃.
7. The method for preparing a nanocomposite as claimed in claim 1, wherein the black powder is collected by centrifugation in the step of cooling to room temperature after the mixed suspension is sealed and treated in a high temperature environment.
8. The method for preparing the nanocomposite material according to claim 1, wherein the step of obtaining the nanocomposite material by cleaning and drying the black powder comprises:
and washing the black powder with deionized water and ethanol, and drying at the temperature of 70-100 ℃ for more than 12 hours in vacuum to obtain the nano composite material.
9. The nanocomposite is characterized by being prepared by the preparation method of the nanocomposite as claimed in claim 1, wherein the nanocomposite is of a sandwich structure, the intermediate layer of the nanocomposite is reduced graphene oxide, and the upper layer and the lower layer of the nanocomposite are rhenium sulfide.
10. Use of a nanocomposite material according to claim 9 for battery materials.
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CN102142537A (en) * 2011-02-25 2011-08-03 浙江大学 Graphene/MoS2 compound nano material lithium ion battery electrode and preparation method thereof
CN102142538A (en) * 2011-02-25 2011-08-03 浙江大学 Lithium ion battery electrode made of graphene/ MoS2 and amorphous carbon and preparation method
CN102683647A (en) * 2012-06-08 2012-09-19 浙江大学 Preparation method of graphene-like MoS2/graphene combined electrode of lithium ion battery
CN102694171A (en) * 2012-06-08 2012-09-26 浙江大学 Hydrothermal preparation method for composite material of single-layer WS2 and graphene
CN105810903A (en) * 2016-03-14 2016-07-27 商丘师范学院 GaGeO3/graphene nanometer composite material and preparation method thereof
CN106277064A (en) * 2016-07-22 2017-01-04 电子科技大学 A kind of method preparing rhenium disulfide nanometer sheet
US20180155832A1 (en) * 2016-12-02 2018-06-07 Asm Ip Holding B.V. Atomic layer deposition of rhenium containing thin films

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