CN106654261A - Preparation method for three-dimensional flower-shaped SnSe<2> nanocrystalline for negative electrode of sodium ion battery - Google Patents
Preparation method for three-dimensional flower-shaped SnSe<2> nanocrystalline for negative electrode of sodium ion battery Download PDFInfo
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Abstract
The invention discloses a preparation method for three-dimensional flower-shaped SnSe<2> nanocrystalline for a negative electrode of a sodium ion battery. According to the preparation method, ethylene glycol is used as a solvent; SnCl<2>.2H<2>O is used as a tin source; NaSeO<3>.5H<2>O is used as a selenium source; hydrazine hydrate is used as a reducing agent; pure-phase SnSe<2> three-dimensional flower-shaped spheres are prepared by a simple one-step solvent thermal method; the SnSe<2> flower-shaped spheres are assembled by nano thin sheets, and the flower is about 1-2[mu]m in dimensions; the thickness of the thin sheets is 10nm; pores are formed between the sheets, so that sodium ion migration can be facilitated; when the three-dimensional flower-shaped SnSe<2> is used for the sodium ion battery, relatively high rate capability is represented; and in addition, the preparation method is simple in process, high in repeatability, short in preparation period, low in reaction temperature, capable of lowering power consumption and production cost, and suitable for large-scale production and preparation.
Description
【Technical field】
The present invention relates to a kind of solvent-thermal method prepares SnSe2A kind of nanocrystalline method, and in particular to sodium-ion battery is born
Pole is with three-dimensional flower-shaped SnSe2 nanocrystalline preparation method.
【Background technology】
In recent years due to electric automobile, intelligent grid etc. greatly develop cause with high-energy-density lithium ion battery into
For the focus of research, but while limited lithium resource greatly limits it again uses on a large scale, this makes to be located at lithium same
The sodium of main group becomes the most possible secondary cell for substituting lithium ion battery, because sodium resource earth rich reserves, and low cost,
Greatly reduce production cost.However, sodium-ion battery has that one is hindered its development, the electrode material reported at present
The energy density of material is less than the lithium ion battery of electrode material of the same race, therefore, sodium-ion battery of the exploitation with high-energy-density
Electrode material is extremely important.
At present, the development of the negative material with high power capacity has been achieved for some achievements, for example, phosphide, oxide,
Sulfide, selenides and alloy type material.Wherein, tin-based composites are due to being easy to the element (N, P, Sb) with the Vth main group
Biphase alloy cpd is formed with the element (O, S, Se) of the VIth main group and cause the concern of researcher, such as SnSb, SnO2、
SnS2、Sn4P3It has been widely studied and preferable chemical property has been shown by the Mechanism of Electrochemistry of conversion reaction.But
SnSe2There is presently no as the report of anode material of lithium-ion battery, be only limitted to the synthesis aspect of Tin diselenide. nano material.Example
Such as, apply big east to wait using selenium dioxide as selenium source, prepared by 40～60nm of thickness, length using hydro-thermal method aids precipitation method
The nanometer sheet of 300～350nm is self-assembled into SnSe nano flowers, but the method is carried out in two steps, and need to add certain template
Agent (Shi Weidong, Zhang Xian etc., selenizing tin nanoflower and preparation method thereof, China Patent No.：201210326635.1)；Liu Mei etc. with
SnSe is raw material, and Au nanometer colloid granule is catalyst, and the mode calcined in high temperature process furnances is prepared for one-dimensional SnSe monocrystalline
Nano wire (Liu Mei, high Xuan, a kind of preparation method of one-dimensional tin selenide monocrystal nanowire, China Patent No.：
201510796786.7), the present invention regulates and controls the growth of SnSe nano wires by mobile boiler tube, makes experimental repeatability be deteriorated, unfavorable
In large batch of generation.Parthiban Ramasamy etc. are with SeO2For selenium source, oleyl amine is as solvent using solvent-thermal method preparation
The SnSe that assembled by single crystal nanoplate2Bouquet, shows preferable electro catalytic activity and photoelectric properties (Parthiban
Ramasamy, Palanisamy Manivasakan et.al, Phase controlled synthesis of SnSe and
SnSe2hierarchical nanostructures made of single crystalline ultrathin
Nanosheets, CrystEngComm, 2014), but the use of oleyl amine is unfavorable for later stage large-scale production.So, using letter
It is have very much scientific meaning that single method prepares a kind of nanocrystalline negative pole as sodium-ion battery of Tin diselenide. of morphology controllable
's.
【The content of the invention】
It is an object of the invention to provide a kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole2Nanocrystalline preparation side
Method, prepared SnSe2It is nanocrystalline for it is a kind of by thin slice assemble three-dimensional flower-shaped structure.
To reach above-mentioned purpose, technical scheme below is present invention employs：
A kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole2Nanocrystalline preparation method, comprises the following steps：
1) inorganic tin salts are added in ethylene glycol, stir to being completely dissolved to form colourless transparent solution A；By selenate plus
Enter in hydrazine hydrate, stir to being completely dissolved and obtain solution B；Then solution B is added dropwise to form mixed solution in solution A
C, and stir；Wherein, tin ion and plasma selenium are in molar ratio 1：(1～4)；
2) mixed liquor C is transferred in water heating kettle, then water heating kettle is placed in hydro-thermal reaction instrument, filled at 160～200 DEG C
Divide reaction, reaction to cool to room temperature with the furnace after terminating, be washed out, the powder body for obtaining black is centrifuged, by isolated powder body
Drying obtains SnSe2It is nanocrystalline.
Described inorganic tin salts are SnCl2·2H2O。
Described selenate is NaSeO3·5H2O。
Step 1) in, stirring as magnetic agitation, mixing speed is 500～800r/min, 20～60min of mixing time.
Step 1) it is specially：By 0.045～2.256g SnCl2·2H2O is added in 38～54mL ethylene glycol, stir to
SnCl2·2H2O is completely dissolved to form colourless transparent solution A；Weigh 0.0158～3.158g NaSeO3·5H2O, it is added to 2～
In 10mL hydrazine hydrates, stir to being completely dissolved and be designated as solution B；Then solution B is added dropwise to form mixed solution in solution A
C。
Step 2) in, the compactedness of the water heating kettle is controlled 50～80%.
Described SnSe2The nanocrystalline SnSe for pure phase2Three-dimensional bouquet, SnSe2Bouquet is assembled by nano flake, flower
The size of ball is 1～2 μm, and the thickness of thin slice is 10nm, there is hole between thin slice and thin slice.
Described three-dimensional flower-shaped SnSe2Nanocrystalline and binding agent and conductive agent in mass ratio 7:1.5:It 1.5 is prepared by mixing into
Negative plate, binding agent is carboxyl methyl cellulose, and conductive agent is super P.
Relative to prior art, beneficial effects of the present invention are embodied in：
The present invention using ethylene glycol as solvent, with inorganic tin source SnCl2·2H2O is used as Xi Yuan, NaSeO3·5H2O conducts
Selenium source, hydrazine hydrate is prepared for pure phase SnSe of flower-like structure as reducing agent using a step solvent-thermal method2Micron ball, the present invention
Simple preparation method is employed, is conducive to controlling the structure of product in the environment of solvent thermal, reaction temperature is low, repeatability
Height, has greatly saved manufacturing cost, reduces energy consumption, meets the extensive demand for generating and preparing.Pure phase SnSe2Micron ball is
Flower-like structure, flower-like structure is assembled by nanometer sheet, has certain hole between piece and piece, is conducive to sodium ion in electrode
Fast transferring in material, the SnSe of the three-dimensional flower-shaped structure2Bouquet has preferably electrification as the negative pole of sodium-ion battery
Learn performance.
The present invention is prepared for the SnSe of pure phase2Three-dimensional bouquet, SnSe2Bouquet is assembled by nano flake, and colored size is about
For 1～2 μm, the thickness of thin slice is about 10nm, there is certain hole between piece and piece, is conducive to the migration of sodium ion, the three-dimensional
Flower ball-shaped SnSe2There is preferable high rate performance 2000mA g as sodium-ion battery-1Electric current density under capacity be maintained at
240mAh g-1.Present invention process is simple, and repeatability is high, and short preparation period, reaction temperature is low, reduces energy consumption and production cost,
It is prepared by suitable large-scale production.
【Description of the drawings】
Fig. 1 is the SnSe prepared by embodiment 32Nanocrystalline X-ray diffraction (XRD) collection of illustrative plates；
Fig. 2 is the SnSe prepared by embodiment 32Nanocrystalline low power scanning electron microscope (SEM) photo；
Fig. 3 is the SnSe prepared by embodiment 32Nanocrystalline high power scanning electron microscope (SEM) photo.
Fig. 4 is the SnSe prepared by embodiment 32Nanocrystalline chemical property figure；Wherein, Cycle number：Circulation
Number of times；Capacity：Capacity.
【Specific embodiment】
The present invention is elaborated with reference to the accompanying drawings and examples.
A kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole2Nanocrystalline preparation method, comprises the following steps：
1) by 0.045～2.256g SnCl2·2H2O is added in 38～54mL ethylene glycol, is stirred to SnCl2·2H2O
It is completely dissolved to form colourless transparent solution A；Weigh 0.0158～3.158g NaSeO3·5H2O, is added to 2～10mL hydrazine hydrates
In, stir to being completely dissolved and be designated as solution B；Then solution B is added dropwise to form mixed solution C in solution A, is placed in magnetic
20～60min is stirred with the speed of 500～800r/min on power blender.NaSeO3·5H2O and SnCl2·2H2The mol ratio of O
For：1～4.
2) above-mentioned mixed liquor C is transferred in 80mL politef water heating kettles, the compactedness control of the water heating kettle exists
50～80%.Then politef water heating kettle is placed in into hydro-thermal reaction instrument and reacts 3～12h in 160～200 DEG C, reaction terminates
After cool to room temperature with the furnace, then, the powder body for obtaining black is centrifuged with dehydrated alcohol cyclic washing 3～6 times, will be isolated
Powder body drying obtains SnSe2It is nanocrystalline.
Prepared SnSe2It is nanocrystalline for a kind of three-dimensional flower-shaped structure being assembled into by the thin slice for crimping, colored size is about
For 1～2 μm, the thickness of thin slice is about 10nm.
Embodiment 1
1) by 0.1125g SnCl2·2H2O is added in 40mL ethylene glycol, is stirred to SnCl2·2H2O is completely dissolved shape
Into colourless transparent solution A；Weigh 0.079g NaSeO3·5H2O, in being added to 2mL hydrazine hydrates, stir to be completely dissolved be designated as it is molten
Liquid B；Then solution B is added dropwise to form mixed solution C in solution A, is placed on magnetic stirrer with 600r/min's
Speed stirs 20min.
2) above-mentioned mixed liquor C is transferred in 80mL politef water heating kettles, then puts politef water heating kettle
12h is reacted in 180 DEG C in hydro-thermal reaction instrument, reaction cools to room temperature with the furnace after terminating, then, with dehydrated alcohol cyclic washing 3
It is secondary that the powder body for obtaining black is centrifuged, isolated powder body drying is obtained into SnSe2It is nanocrystalline.
Embodiment 2
1) by 0.2256g SnCl2·2H2O is added in 50mL ethylene glycol, is stirred to SnCl2·2H2O is completely dissolved shape
Into colourless transparent solution A；Weigh 0.3158g NaSeO3·5H2O, in being added to 8mL hydrazine hydrates, stirs to being completely dissolved and is designated as
Solution B；Then solution B is added dropwise to form mixed solution C in solution A, is placed on magnetic stirrer with 600r/min
Speed stirring 30min.
2) above-mentioned mixed liquor C is transferred in 80mL politef water heating kettles, then puts politef water heating kettle
12h is reacted in 200 DEG C in hydro-thermal reaction instrument, reaction cools to room temperature with the furnace after terminating, then, with dehydrated alcohol cyclic washing 3
It is secondary that the powder body for obtaining black is centrifuged, isolated powder body drying is obtained into SnSe2It is nanocrystalline.
Embodiment 3
1) by 0.45g SnCl2·2H2O is added in 60mL ethylene glycol, is stirred to SnCl2·2H2O is completely dissolved to be formed
Colourless transparent solution A；Weigh 0.1579g NaSeO3·5H2O, in being added to 3mL hydrazine hydrates, stir to be completely dissolved be designated as it is molten
Liquid B；Then solution B is added dropwise to form mixed solution C in solution A, is placed on magnetic stirrer with 600r/min's
Speed stirs 30min.
2) above-mentioned mixed liquor C is transferred in 80mL politef water heating kettles, then puts politef water heating kettle
8h are reacted in 160 DEG C in hydro-thermal reaction instrument, reaction cools to room temperature with the furnace after terminating, then, with dehydrated alcohol cyclic washing 3 times
Centrifugation obtains the powder body of black, and isolated powder body drying is obtained into SnSe2It is nanocrystalline.
3) sample (SnSe is analyzed with Rigaku D/max2000PCX- x ray diffractometer xs2It is nanocrystalline), find sample with
JCPDS numberings are the SnSe of the hexagonal crystal system of 89-31972Structure is consistent (Fig. 1), illustrates the available purer SnSe of the method2Receive
Meter Jing.The sample is observed with field emission scanning electron microscope (FESEM), SnSe is found2It is nanocrystalline for a kind of three-dimensional
Bouquet structure (Fig. 3), and particle size distribution is uniform (Fig. 2), bouquet is assembled by nano flake.With the three-dimensional bouquet for preparing
The SnSe of structure2It is nanocrystalline for activity powder, with binding agent (carboxyl methyl cellulose) and conductive agent (super P) in mass ratio
7:1.5:1.5 are prepared by mixing into negative plate, are assembled into sodium-ion battery, and using BTS battery charging and discharging testers its charge and discharge is tested
Electrical property, referring to Fig. 4, it can be seen that the SnSe of three-dimensional flower-shaped structure2It is nanocrystalline with higher capacity and cyclical stability.
Embodiment 4
1) by 0.45g SnCl2·2H2O is added in 60mL ethylene glycol, is stirred to SnCl2·2H2O is completely dissolved to be formed
Colourless transparent solution A；Weigh 0.2368g NaSeO3·5H2O, in being added to 6mL hydrazine hydrates, stir to be completely dissolved be designated as it is molten
Liquid B；Then solution B is added dropwise to form mixed solution C in solution A, is placed on magnetic stirrer with 600r/min's
Speed stirs 40min.
2) above-mentioned mixed liquor C is transferred in 80mL politef water heating kettles, then puts politef water heating kettle
6h are reacted in 200 DEG C in hydro-thermal reaction instrument, reaction cools to room temperature with the furnace after terminating, then, with dehydrated alcohol cyclic washing 4 times
Centrifugation obtains the powder body of black, and isolated powder body drying is obtained into SnSe2It is nanocrystalline.
Embodiment 5
1) by 0.2256g SnCl2·2H2O is added in 50mL ethylene glycol, is stirred to SnCl2·2H2O is completely dissolved shape
Into colourless transparent solution A；Weigh 0.6316g NaSeO3·5H2O, in being added to 5mL hydrazine hydrates, stirs to being completely dissolved and is designated as
Solution B；Then solution B is added dropwise to form mixed solution C in solution A, is placed on magnetic stirrer with 600r/min
Speed stirring 50min.
2) above-mentioned mixed liquor C is transferred in 80mL politef water heating kettles, then puts politef water heating kettle
10h is reacted in 180 DEG C in hydro-thermal reaction instrument, reaction cools to room temperature with the furnace after terminating, then, with dehydrated alcohol cyclic washing 6
It is secondary that the powder body for obtaining black is centrifuged, isolated powder body drying is obtained into SnSe2It is nanocrystalline.
Embodiment 6
A kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole2Nanocrystalline preparation method, comprises the following steps：
1) by 0.045g SnCl2·2H2O is added in 38mL ethylene glycol, is stirred to SnCl2·2H2O is completely dissolved to be formed
Colourless transparent solution A；Weigh 0.0158g NaSeO3·5H2O, in being added to 2mL hydrazine hydrates, stir to be completely dissolved be designated as it is molten
Liquid B；Then solution B is added dropwise to form mixed solution C in solution A, is placed on magnetic stirrer with 500r/min's
Speed stirs 20min.
2) above-mentioned mixed liquor C is transferred in 80mL politef water heating kettles, the compactedness control of the water heating kettle exists
80%.Then politef water heating kettle is placed in into hydro-thermal reaction instrument and 3h is reacted in 160 DEG C, reaction cools to room with the furnace after terminating
Temperature, then, is centrifuged the powder body for obtaining black for 3 times with dehydrated alcohol cyclic washing, and isolated powder body drying is obtained into SnSe2
It is nanocrystalline.
Prepared SnSe2It is nanocrystalline for a kind of three-dimensional flower-shaped structure being assembled into by the thin slice for crimping, colored size is about
For 1～2 μm, the thickness of thin slice is about 10nm.
Embodiment 7
A kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole2Nanocrystalline preparation method, comprises the following steps：
1) by 2.256g SnCl2·2H2O is added in 54mL ethylene glycol, is stirred to SnCl2·2H2O is completely dissolved to be formed
Colourless transparent solution A；Weigh 3.158g NaSeO3·5H2O, in being added to 10mL hydrazine hydrates, stir to be completely dissolved be designated as it is molten
Liquid B；Then solution B is added dropwise to form mixed solution C in solution A, is placed on magnetic stirrer with 800r/min's
Speed stirs 60min.
2) above-mentioned mixed liquor C is transferred in 80mL politef water heating kettles, the compactedness control of the water heating kettle exists
50～80%.Then politef water heating kettle is placed in into hydro-thermal reaction instrument and 12h is reacted in 200 DEG C, reaction is cold with stove after terminating
But to room temperature, then, the powder body for obtaining black is centrifuged for 6 times with dehydrated alcohol cyclic washing, isolated powder body is dried
To SnSe2It is nanocrystalline.
Prepared SnSe2It is nanocrystalline for a kind of three-dimensional flower-shaped structure being assembled into by the thin slice for crimping, colored size is about
For 1～2 μm, the thickness of thin slice is about 10nm.
In a word, the present invention is prepared for three-dimensional flower ball-shaped structure using ethylene glycol as solvent using a step solvent-thermal method
SnSe2It is nanocrystalline, because the bouquet structure is assembled by many nano flakes, there is certain hole between piece and piece, have
Beneficial to the migration of ion, therefore (first reversible capacity reaches to have preferable chemical property as anode material of lithium-ion battery
To 810mAh g-1, 2000mA g-1Electric current density under capacity be maintained at 240mAh g-1).And, the method that the present invention is used
Simply, reaction temperature is low, and repeatability is high, is conducive to controlling the structure and image of product in the environment of solvent thermal, is conducive to preparing
The product of special construction.
Claims (8)
1. a kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole2Nanocrystalline preparation method, it is characterised in that including following step
Suddenly：
1) inorganic tin salts are added in ethylene glycol, stir to being completely dissolved to form colourless transparent solution A；Selenate is added to
In hydrazine hydrate, stir to being completely dissolved and obtain solution B；Then solution B is added dropwise to form mixed solution C in solution A, and
Stir；Wherein, tin ion and plasma selenium are in molar ratio 1：(1～4)；
2) mixed liquor C is transferred in water heating kettle, then water heating kettle is placed in hydro-thermal reaction instrument, it is fully anti-at 160～200 DEG C
Should, reaction cools to room temperature with the furnace after terminating, and is washed out, the powder body for obtaining black is centrifuged, and isolated powder body is dried
Obtain SnSe2It is nanocrystalline.
2. a kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole according to claim 12Nanocrystalline preparation method, it is special
Levy and be：Described inorganic tin salts are SnCl2·2H2O。
3. a kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole according to claim 12Nanocrystalline preparation method, it is special
Levy and be：Described selenate is NaSeO3·5H2O。
4. a kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole according to claim 12Nanocrystalline preparation method, it is special
Levy and be：Step 1) in, stirring as magnetic agitation, mixing speed is 500～800r/min, 20～60min of mixing time.
5. a kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole according to claim 12Nanocrystalline preparation method, it is special
Levy and be：Step 1) it is specially：By 0.045～2.256g SnCl2·2H2O is added in 38～54mL ethylene glycol, stir to
SnCl2·2H2O is completely dissolved to form colourless transparent solution A；Weigh 0.0158～3.158g NaSeO3·5H2O, it is added to 2～
In 10mL hydrazine hydrates, stir to being completely dissolved and be designated as solution B；Then solution B is added dropwise to form mixed solution in solution A
C。
6. a kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole according to claim 12Nanocrystalline preparation method, it is special
Levy and be：Step 2) in, the compactedness of the water heating kettle is controlled 50～80%.
7. a kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole according to claim 12Nanocrystalline preparation method, it is special
Levy and be：Described SnSe2The nanocrystalline SnSe for pure phase2Three-dimensional bouquet, SnSe2Bouquet is assembled by nano flake, bouquet
Size be 1～2 μm, the thickness of thin slice is 10nm, there is hole between thin slice and thin slice.
8. a kind of three-dimensional flower-shaped SnSe of sodium-ion battery negative pole according to claim 12Nanocrystalline preparation method, it is special
Levy and be：Described SnSe2It is nanocrystalline when using as battery cathode, SnSe2Nanocrystalline and binding agent and conductive agent are in mass ratio
7:1.5:1.5 are prepared by mixing into negative plate, and binding agent is carboxyl methyl cellulose, and conductive agent is super P.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147376A (en) * | 2018-01-17 | 2018-06-12 | 陕西科技大学 | A kind of method of room temperature synthesis stannic selenide powder |
| CN108588838A (en) * | 2018-03-23 | 2018-09-28 | 桂林电子科技大学 | A method of preparing the SnSe polycrystalline bulks with high thermoelectricity capability |
| CN109521063A (en) * | 2018-12-04 | 2019-03-26 | 海南聚能科技创新研究院有限公司 | The nitrogen dioxide gas sensor of petal-shaped SnSe2 |
| CN110240126A (en) * | 2019-06-14 | 2019-09-17 | 西安交通大学 | A kind of two stannic selenides of nanometer flower structure and preparation method thereof |
| CN110436421A (en) * | 2019-08-12 | 2019-11-12 | 陕西科技大学 | A kind of flowers shape SnSe raw powder's production technology |
| CN110504438A (en) * | 2019-08-31 | 2019-11-26 | 河南师范大学 | A kind of preparation method and applications of exotic atom doping carbon coating two-dimensional metallic selenides nanosheet composite material |
| CN113005328A (en) * | 2021-02-23 | 2021-06-22 | 西安航空学院 | Tin-selenium-sulfur ternary alloy cathode material for sodium ion battery and preparation method and application thereof |
| CN113328004A (en) * | 2021-04-23 | 2021-08-31 | 深圳大学 | Indium selenide photoelectric detector for surface modification by utilizing stannous selenide nanocrystals and preparation method thereof |
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| 彭红瑞等: "SnSe2纳米片的制备及结构表征", 《青岛科技大学学报》 * |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108147376A (en) * | 2018-01-17 | 2018-06-12 | 陕西科技大学 | A kind of method of room temperature synthesis stannic selenide powder |
| CN108588838A (en) * | 2018-03-23 | 2018-09-28 | 桂林电子科技大学 | A method of preparing the SnSe polycrystalline bulks with high thermoelectricity capability |
| CN108588838B (en) * | 2018-03-23 | 2019-12-06 | 桂林电子科技大学 | method for preparing SnSe polycrystalline block with high thermoelectric performance |
| CN109521063A (en) * | 2018-12-04 | 2019-03-26 | 海南聚能科技创新研究院有限公司 | The nitrogen dioxide gas sensor of petal-shaped SnSe2 |
| CN110240126A (en) * | 2019-06-14 | 2019-09-17 | 西安交通大学 | A kind of two stannic selenides of nanometer flower structure and preparation method thereof |
| CN110240126B (en) * | 2019-06-14 | 2021-01-19 | 西安交通大学 | Tin diselenide with nanoflower structure and preparation method thereof |
| CN110436421A (en) * | 2019-08-12 | 2019-11-12 | 陕西科技大学 | A kind of flowers shape SnSe raw powder's production technology |
| CN110504438A (en) * | 2019-08-31 | 2019-11-26 | 河南师范大学 | A kind of preparation method and applications of exotic atom doping carbon coating two-dimensional metallic selenides nanosheet composite material |
| CN113005328A (en) * | 2021-02-23 | 2021-06-22 | 西安航空学院 | Tin-selenium-sulfur ternary alloy cathode material for sodium ion battery and preparation method and application thereof |
| CN113005328B (en) * | 2021-02-23 | 2021-12-07 | 西安航空学院 | Tin-selenium-sulfur ternary alloy cathode material for sodium ion battery and preparation method and application thereof |
| CN113328004A (en) * | 2021-04-23 | 2021-08-31 | 深圳大学 | Indium selenide photoelectric detector for surface modification by utilizing stannous selenide nanocrystals and preparation method thereof |
| CN113328004B (en) * | 2021-04-23 | 2022-11-01 | 深圳大学 | Indium selenide photoelectric detector for surface modification by utilizing stannous selenide nanocrystals and preparation method thereof |
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Application publication date: 20170510 |