CN109231176A - A kind of telluride nano sheets of platinum and preparation method thereof - Google Patents
A kind of telluride nano sheets of platinum and preparation method thereof Download PDFInfo
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- CN109231176A CN109231176A CN201811307603.0A CN201811307603A CN109231176A CN 109231176 A CN109231176 A CN 109231176A CN 201811307603 A CN201811307603 A CN 201811307603A CN 109231176 A CN109231176 A CN 109231176A
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- platinum
- telluride
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
- C01B19/00—Selenium; Tellurium; Compounds thereof
- C01B19/007—Tellurides or selenides of metals
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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
- C01P2004/00—Particle morphology
- C01P2004/01—Particle morphology depicted by an image
- C01P2004/03—Particle morphology depicted by an image obtained by SEM
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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
- C01P2004/04—Particle morphology depicted by an image obtained by TEM, STEM, STM or AFM
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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
- C01P2004/20—Particle morphology extending in two dimensions, e.g. plate-like
Abstract
The present invention relates to a kind of nanometer sheets；More particularly to a kind of telluride nano sheets of platinum and preparation method thereof.The nanometer sheet is two-dimensional ultrathin telluride nano sheets of platinum；The preparation method is mainly to synthesize the telluride platinum body phase material of high-quality by chemical vapor transport method and removed into two-dimensional ultrathin nanometer sheet by electrochemical cathode stripping method.The characteristics of this method is, in bipolar electrode system, using body phase telluride platinum crystal and platinum plate electrode as cathode and anode, with non-proton organic solvent, tetraalkyl ammonium tetrafluoroborate is the additional suitable voltage of electrolyte, is removed to obtain two-dimensional ultrathin telluride nano sheets of platinum to telluride platinum crystal.Method of the invention can quickly, the magnanimity of low cost the two-dimensional ultrathin telluride nano sheets of platinum of complete atomic structure is prepared.
Description
Technical field
The invention belongs to technical field of nano material, are related to nanometer sheet and preparation method thereof more particularly to a kind of telluride platinum
Nanometer sheet and preparation method thereof.
Background technique
The quantum jump of Material Field advances the fast development of science and technology.Since graphene in 2004 is successfully made
It is standby, it was demonstrated that two-dimensional material can be stabilized in nature, also open the research boom of two-dimensional nano material.Graphene is one
The two-dimensional material of kind of monoatomic layer, because its electricity, mechanics, calorifics and in terms of all have excellent property due to attract
The very big concern of whole world scientist.But mono-layer graphite it is dilute be not present band gap, this allow for it in logic circuits application by
To limitation.In order to make up the deficiency of zero band gap of graphene, scientist begins look for other changes with similar layer structure feature
Close object, such as hexagonal boron nitride (h-BN)4, transient metal sulfide and black phosphorus etc..In order to further explore other with potential
Two-dimensional material, the research about ganometallic transition metal sulfide is also gradually reported.
Currently, carrying out removing to body phase material is that magnanimity prepares one of the important means of thin layer TMDs material.But it removes
Mode generally with mechanical stripping and liquid phase removing based on, be unable to get large scale, the thin layer two-dimensional material of high-quality.Phase therewith
Than chemical vapor deposition (CVD) method can make up the deficiency of its crystal quality well, but yield is extremely low, is unable to satisfy magnanimity
The demand of preparation.Therefore, finding a kind of can take into account the method that quality and yield prepare dimensional thinlayer material and seem very necessary.
Therefore, above-mentioned deficiency is solved using a kind of method of strong operability, magnanimity prepares the two-dimensional ultrathin telluride platinum of high-quality
(PtTe2) nanometer sheet is to seem significantly for promoting the further investigation of the material.
Summary of the invention
Summary of the invention
First aspect present invention provides a kind of telluride nano sheets of platinum.
Second aspect of the present invention provides a kind of preparation method of telluride nano sheets of platinum.
Third aspect present invention provides a kind of electrochemical appliance for being used to prepare telluride nano sheets of platinum.
Term definition
Term " PtTe2" identical as " telluride platinum " and " two telluride platinum ".
Term " Pt " is chemical element " platinum ".
Term " Te " is chemical element " tellurium ".
Detailed description of the invention
In view of the above-mentioned deficiencies in the prior art, it is an object of the present invention to provide a kind of preparation method of telluride nano sheets of platinum, institute
The method of stating is by bipolar electrode system, using body phase telluride platinum crystal and platinum plate electrode as cathode and anode, with non-
Protic organic solvent, tetrabutyl ammonium tetrafluoroborate are the additional suitable voltage of electrolyte, remove, obtain to telluride platinum crystal
To two-dimensional ultrathin telluride nano sheets of platinum.Preparation method of the invention can magnanimity two-dimensional ultrathin telluride platinum nanometer is prepared.
The purpose of the present invention can be realized by following technical solution:
First aspect present invention provides a kind of telluride nano sheets of platinum, and the nanometer sheet is two-dimensional ultrathin telluride nano sheets of platinum,
The numberical range of its thickness in monolayer is 0.5nm-15nm；Or the numberical range of the thickness in monolayer is 1nm-10nm.
Second aspect of the present invention provides a kind of preparation method of telluride nano sheets of platinum, method includes the following steps:
(1) by body phase PtTe2Material is placed in Pt electrode holder as cathode, using Pt electrode as anode, electrolyte four
Alkyl tetrafluoro boric acid ammonium salt solution, solvent are non-protonic solvent；
(2) voltage of DC power supply is adjusted, applied voltage is -2 to -10V, body phase PtTe2Material is shelled in the solution
From after the reaction was completed, by filtering, washing is dry, obtains two-dimensional ultrathin PtTe2Nanometer sheet.
In some embodiments, the tetraalkyl ammonium tetrafluoroborate, wherein alkyl is methyl, ethyl, propyl or butyl.
In some embodiments, the molar concentration of the organic solution of the tetraalkyl ammonium tetrafluoroborate is 0.01mol/L
To 1.0mol/L.
In some embodiments, the molar concentration of the organic solution of the tetraalkyl ammonium tetrafluoroborate is 0.05mol/L
To 0.2mol/L.
In some embodiments, the non-protonic solvent is dimethyl sulfoxide or n,N dimethylformamide.
In some embodiments, the applied voltage is -4 to -6V.
In some embodiments, the applied voltage is -5V.
In some embodiments, the washing is with water and/or ethanol washing.
Third aspect present invention provides a kind of electrochemical appliance for being used to prepare telluride nano sheets of platinum, the device of the invention
It is with body phase PtTe2Material is as cathode, and using Pt electrode as anode, electrolyte is tetrabutyl tetrafluoro boric acid ammonium salt solution, solvent
For non-protonic solvent, external dc power supply voltage is -2V to -10V.
In some embodiments, the electrochemical appliance is electrochemical workstation or DC power supply.
In some embodiments, the molar concentration of the organic solution of the tetrabutyl ammonium tetrafluoroborate is 0.01mol/L
To 1.0mol/L.
In some embodiments, the non-protonic solvent is dimethyl sulfoxide or n,N dimethylformamide.
Compared with prior art, the present invention has following substantive distinguishing features outstanding and significant progress: tellurium of the invention
Change the characteristic that nano sheets of platinum has two-dimensional ultrathin, thickness in monolayer can reach 1nm；Method of the invention can be quick, low cost
The two-dimensional ultrathin telluride nano sheets of platinum of high-quality, complete atomic structure is prepared in magnanimity.Electrochemical appliance of the invention, can
It is easy to prepare two-dimensional ultrathin telluride nano sheets of platinum, reaches the purpose of the present invention.
Detailed description of the invention
Fig. 1 is chemical vapor transport method (CVT) preparation PtTe2The scanning electron microscope diagram (SEM) of body phase material.
Fig. 2 is ultra-thin PtTe2The transmission electron microscope figure (TEM) of two-dimensional nano piece.
Fig. 3 is ultra-thin PtTe2The atomic force microscopy diagram (AFM) of two-dimensional nano piece.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, disclose further below some non-
Limiting embodiment, the present invention is described in further detail.
Embodiment 1
Body phase PtTe2The preparation of material:
(1) 15g simple substance Pt (200 mesh, 99.98%) and 20.5g simple substance Te (200 mesh, 99.999%) are mixed well, is filled
Enter quartzy bottom of the tube.
(2) vacuum degree in quartz ampoule is evacuated to 10 by oil pump-3Pa, and quartz ampoule is fully sealed with oxyhydrogen flame.
(3) quartz ampoule being sealed is placed in Muffle furnace, program: 1000 DEG C of holding 48h (heating rates: 10 is set
DEG C/min), room temperature (rate of temperature fall: 1 DEG C/min) is slowly dropped to after 1150 DEG C of holding 1h (heating rate: 10 DEG C/min).It obtains
The body phase PtTe of silvery white metallic luster2Material.
Embodiment 2
Electrochemical appliance removes body phase PtTe2Material:
(1) operating voltage for adjusting electrochemical workstation is -5V, using dimethyl sulfoxide as solvent, tetrabutyl tetrafluoro boric acid
Ammonium is electrolyte, molar concentration 0.05mol/L.
(2) with the progress of removing, body phase PtTe2Intercalation, expansion, obscission successively occur for crystal.
(3) after the reaction was completed, it is rocked manually by faint, the PtTe after being removed2Nanometer sheet solution passes through pumping
Filter, washing remove electrolyte, ultra-thin PtTe that obtain high-purity, high-quality2Nanometer sheet.
The testing conditions and method of scanning electron microscope diagram:
Testing conditions: field emission type transmission electron microscope, voltage 2kV.
Instrument and equipment model: Zeiss55, Carl Zeiss, Germany.
Detection method: sample to be tested is applied to conducting resinl, for testing.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of telluride nano sheets of platinum, the nanometer sheet is two-dimensional ultrathin telluride nano sheets of platinum, the numberical range of thickness in monolayer
For 0.5nm-15nm；Or the numberical range of the thickness in monolayer is 1nm-10nm.
2. a kind of preparation method of telluride nano sheets of platinum, comprising the following steps:
(1) by body phase PtTe2Material is placed in Pt electrode holder as cathode, and using Pt electrode as anode, electrolyte is tetraalkyl four
Ammonium fluoroborate solution, solvent are non-protonic solvent；
(2) voltage of DC power supply is adjusted, applied voltage is -2 to -10V, body phase PtTe2Material is removed in the solution, instead
After the completion of answering, by filtering, wash, drying obtains two-dimensional ultrathin PtTe2Nanometer sheet.
3. according to the method described in claim 2, it is characterized in that, the tetraalkyl ammonium tetrafluoroborate, wherein alkyl be methyl,
Ethyl, propyl or butyl.
4. according to the method described in claim 2, it is characterized in that, mole of the organic solution of the tetraalkyl ammonium tetrafluoroborate
Concentration is 0.01mol/L to 1.0mol/L；Or the molar concentration of the organic solution of the tetraalkyl ammonium tetrafluoroborate is
0.05mol/L to 0.2mol/L.
5. according to the method described in claim 2, it is characterized in that, the non-protonic solvent is dimethyl sulfoxide or N, N bis-
Methylformamide.
6. according to the method described in claim 2, it is characterized in that, the applied voltage is -4 to -6V.
7. according to the method described in claim 2, it is characterized in that, the washing is with water and/or ethanol washing.
8. a kind of electrochemical appliance for being used to prepare telluride nano sheets of platinum, which is characterized in that the device is with body phase PtTe2Material
As cathode, using Pt electrode as anode, electrolyte is tetrabutyl tetrafluoro boric acid ammonium salt solution, and solvent is non-protonic solvent, outside
Adding direct current power source voltage is -2V to -10V.
9. electrochemical appliance according to any one of claims 8, which is characterized in that the organic solution of the tetrabutyl ammonium tetrafluoroborate is rubbed
Your concentration is 0.01mol/L to 1.0mol/L.
10. electrochemical appliance according to any one of claims 8, which is characterized in that the non-protonic solvent is dimethyl sulfoxide or N, N
Dimethylformamide.
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407183A (en) * | 2019-07-31 | 2019-11-05 | 兰州大学 | A kind of tellurium nanometer rods, energy storage device and preparation method thereof, the method for preparing tellurium nano material |
| CN112811401A (en) * | 2021-01-11 | 2021-05-18 | 厦门大学 | Preparation method for obtaining few-layer two-dimensional tellurine in large quantity |
| CN112875654A (en) * | 2021-01-12 | 2021-06-01 | 青岛大学 | Tin telluride nanobelt and preparation method and application thereof |
| CN114735661A (en) * | 2022-06-15 | 2022-07-12 | 之江实验室 | Two-dimensional superconducting PtTe prepared based on two-dimensional tellurium nanocrystals2And preparation method and application thereof |
| CN114890391A (en) * | 2022-03-25 | 2022-08-12 | 西北工业大学宁波研究院 | Two-dimensional ultrathin NiTe 2 Nanosheet and preparation method thereof |
| CN115849310A (en) * | 2022-11-28 | 2023-03-28 | 西北工业大学 | Two-dimensional ultrathin amorphous PtTe 2 Nanosheet and preparation method and application thereof |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110407183A (en) * | 2019-07-31 | 2019-11-05 | 兰州大学 | A kind of tellurium nanometer rods, energy storage device and preparation method thereof, the method for preparing tellurium nano material |
| CN112811401A (en) * | 2021-01-11 | 2021-05-18 | 厦门大学 | Preparation method for obtaining few-layer two-dimensional tellurine in large quantity |
| CN112875654A (en) * | 2021-01-12 | 2021-06-01 | 青岛大学 | Tin telluride nanobelt and preparation method and application thereof |
| CN112875654B (en) * | 2021-01-12 | 2023-04-21 | 青岛大学 | Tin telluride nano belt and preparation method and application thereof |
| CN114890391A (en) * | 2022-03-25 | 2022-08-12 | 西北工业大学宁波研究院 | Two-dimensional ultrathin NiTe 2 Nanosheet and preparation method thereof |
| CN114735661A (en) * | 2022-06-15 | 2022-07-12 | 之江实验室 | Two-dimensional superconducting PtTe prepared based on two-dimensional tellurium nanocrystals2And preparation method and application thereof |
| CN114735661B (en) * | 2022-06-15 | 2022-09-20 | 之江实验室 | Two-dimensional superconducting PtTe prepared based on two-dimensional tellurium nanocrystals 2 And preparation method and application thereof |
| CN115849310A (en) * | 2022-11-28 | 2023-03-28 | 西北工业大学 | Two-dimensional ultrathin amorphous PtTe 2 Nanosheet and preparation method and application thereof |
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