CN116081678A - Tubular furnace sintering preparation Cu 2 S thermoelectric material method - Google Patents
Tubular furnace sintering preparation Cu 2 S thermoelectric material method Download PDFInfo
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- 239000000463 material Substances 0.000 title claims abstract description 48
- 238000005245 sintering Methods 0.000 title claims abstract description 29
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000002360 preparation method Methods 0.000 title claims description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 14
- 239000011259 mixed solution Substances 0.000 claims abstract description 13
- 239000000243 solution Substances 0.000 claims abstract description 11
- 238000003756 stirring Methods 0.000 claims abstract description 10
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims abstract description 8
- 239000000843 powder Substances 0.000 claims abstract description 8
- 229910021591 Copper(I) chloride Inorganic materials 0.000 claims description 10
- OXBLHERUFWYNTN-UHFFFAOYSA-M copper(I) chloride Chemical compound [Cu]Cl OXBLHERUFWYNTN-UHFFFAOYSA-M 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 10
- 238000003760 magnetic stirring Methods 0.000 claims description 10
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 claims description 7
- 238000004519 manufacturing process Methods 0.000 claims description 6
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 5
- 238000004140 cleaning Methods 0.000 claims description 5
- 239000001257 hydrogen Substances 0.000 claims description 5
- 229910052739 hydrogen Inorganic materials 0.000 claims description 5
- 238000001816 cooling Methods 0.000 claims description 4
- 238000001027 hydrothermal synthesis Methods 0.000 claims description 4
- 238000004321 preservation Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 238000010438 heat treatment Methods 0.000 claims description 3
- 238000002156 mixing Methods 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- 239000012300 argon atmosphere Substances 0.000 claims description 2
- 239000012298 atmosphere Substances 0.000 claims description 2
- 239000002904 solvent Substances 0.000 claims description 2
- 231100000252 nontoxic Toxicity 0.000 abstract description 4
- 230000003000 nontoxic effect Effects 0.000 abstract description 4
- 230000002195 synergetic effect Effects 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract 6
- ORTQZVOHEJQUHG-UHFFFAOYSA-L copper(II) chloride Chemical compound Cl[Cu]Cl ORTQZVOHEJQUHG-UHFFFAOYSA-L 0.000 abstract 1
- 238000003912 environmental pollution Methods 0.000 abstract 1
- 238000012423 maintenance Methods 0.000 abstract 1
- 239000013078 crystal Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 5
- 238000002490 spark plasma sintering Methods 0.000 description 4
- 230000001276 controlling effect Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000011056 performance test Methods 0.000 description 3
- 239000011148 porous material Substances 0.000 description 3
- LDXJRKWFNNFDSA-UHFFFAOYSA-N 2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)-1-[4-[2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidin-5-yl]piperazin-1-yl]ethanone Chemical compound C1CN(CC2=NNN=C21)CC(=O)N3CCN(CC3)C4=CN=C(N=C4)NCC5=CC(=CC=C5)OC(F)(F)F LDXJRKWFNNFDSA-UHFFFAOYSA-N 0.000 description 2
- AFCARXCZXQIEQB-UHFFFAOYSA-N N-[3-oxo-3-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CCNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 AFCARXCZXQIEQB-UHFFFAOYSA-N 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 229910052717 sulfur Inorganic materials 0.000 description 2
- 241000282414 Homo sapiens Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 231100000086 high toxicity Toxicity 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 239000008204 material by function Substances 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 231100000956 nontoxicity Toxicity 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G3/00—Compounds of copper
- C01G3/12—Sulfides
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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
- C01P2002/70—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data
- C01P2002/72—Crystal-structural characteristics defined by measured X-ray, neutron or electron diffraction data by d-values or two theta-values, e.g. as X-ray diagram
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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
- C01P2002/80—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70
- C01P2002/85—Crystal-structural characteristics defined by measured data other than those specified in group C01P2002/70 by XPS, EDX or EDAX data
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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
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/32—Thermal properties
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/40—Electric properties
Abstract
The invention discloses a method for preparing Cu by sintering in a tube furnace 2 S thermoelectric material is prepared through stirring copper chloride solution and sulfur powder mixed solution, and solution thermal reaction to obtain Cu 2 S powder is sintered into Cu through a tabletting pipe type sintering process 2 S thermoelectric material. The invention utilizes the tube furnace sintering, which not only has small environmental pollution, simple operation, low use price and easy maintenance of equipment, but also can reduce the heat conductivity of the base material, strengthen the Seebeck coefficient of the base material and improve the thermoelectric performance under the synergistic effect of the Seebeck coefficient and the heat conductivity. Cu (Cu) 2 Compared with the traditional thermoelectric material, the S-based thermoelectric material is nontoxic, harmless and low in price. Cu prepared by the invention 2 The S thermoelectric material further optimizes the thermoelectric performance, and compared with the traditional discharge plasma sintering method, the S thermoelectric material has 17 percent of heat conductivity reduced and reaches 0.39 under 773K
The seebeck coefficient is raised at 773K37%, up to 479.6
The maximum ZT value of 0.22 is obtained.
Description
Technical Field
The invention relates to the field of thermoelectric materials, in particular to a method for preparing Cu by sintering in a tube furnace 2 S method of thermoelectric material.
Background
In recent years, various energy and environmental problems are developed with the consumption of fossil energy by human beings. To alleviate the above problem pressures, researchers have placed research hotspots in thermoelectric materials. Thermoelectric devices prepared from thermoelectric materials can realize the mutual conversion of heat energy and electric energy without generating any pollution, and are considered as important functional materials for future energy development strategies. Cu (Cu) 2 S has been widely studied in recent years as a potential thermoelectric material as an environmentally friendly, low cost thermoelectric material. Cu (Cu) 2 S is considered as a "liquid-like" thermoelectric material, with a higher seebeck coefficient and lower thermal conductivity being the most promising thermoelectric material. Spark Plasma Sintering (SPS) and induction hot-pressed sintering (IHP) using pulsed direct current have now become the dominant sintering techniques for studying thermoelectric materials. However, for a Cu-like composition 2 S this material with higher example mobility may have its composition changed using spark plasma sintering techniques. And expensive equipment is required, either SPS or IHP technology, which also limits the application of some thermoelectric materials. So Cu is prepared by a hydrothermal method with simple steps 2 S powder, by using a sintering method of a tube furnace, controlling the cooling rate by regulating and controlling the sintering temperature, so that crystal grains grow up, the heat conductivity of the crystal grains is reduced, and the Seebeck coefficient of the crystal grains is increased. So that the high-temperature heat and power energy storage device achieves better thermoelectric performance in a high-temperature area.
Compared with the spark plasma sintering method and the hot press sintering method, the tubular furnace sintering method has the characteristics of simple process and lower energy consumption. It is subjected toCombined with solution heating method for preparing Cu 2 S further reduces the production cost of the material. Therefore, the invention focuses on finding Cu with low cost and feasible method 2 S thermoelectric material preparation technology and shows nontoxic and low-cost Cu 2 S thermoelectric material application prospect.
Disclosure of Invention
The invention aims to provide Cu which is nontoxic, low in cost and good in thermoelectric performance 2 S-based thermoelectric material: tube furnace sintering for preparing Cu 2 The preparation method of the S thermoelectric material aims at solving the problems of high production cost, high toxicity, high price and the like of the high-temperature S-based thermoelectric material in the prior art, and realizes the preparation of high-temperature Cu with low cost, no toxicity, low price and good thermoelectric performance 2 S composite thermoelectric material.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
tubular furnace sintering preparation Cu 2 S thermoelectric material method comprises the following specific steps:
(1) Dissolving CuCl under the conditions of water bath and magnetic stirring 2 ·2H 2 O；
(2) Under the conditions of water bath and magnetic stirring, diethylenetriamine is used as a solvent to dissolve sulfur powder;
(3) Slowly dripping the mixed solution obtained in the step (1) into the mixed solution obtained in the step (2), and uniformly stirring;
(4) Adding the mixed solution obtained in the step (3) into a reaction kettle for reaction;
(5) Centrifuging, cleaning and drying the reaction solution obtained in the step (4);
(6) Tabletting the dried powder obtained in the step (5), and sintering in a tube furnace.
CuCl in step (1) 2 ·2H 2 The addition amount of O was 3.41g, and 20ml of absolute ethyl alcohol was mixed and stirred for 30 minutes.
The addition amount of the sulfur powder in the step (2) is 0.32g, 10ml of diethylenetriamine, and the mixing and stirring time is 30min.
And (3) mixing and stirring for 30min.
The hydrothermal reaction in the step (4) needs to be carried out for 12 hours at 180 ℃.
The rotational speed of the centrifugal machine in the step (5) is 8000r/min, and the time is 5min. Drying at 60deg.C for 12 hr.
And (6) the pressure of the tablet press is 10Mpa, and the time is 10min. The argon atmosphere is 80% hydrogen atmosphere is 20%, the heating rate is 3 ℃/min, and the temperature is kept at 700 ℃ for 2h. The temperature is reduced at a rate of 10 ℃/min, the temperature is kept at 400 ℃ for 30min, the temperature is reduced at a rate of 2 ℃/min, and the temperature is kept at 300 ℃ and 200 ℃ for 30min respectively.
The beneficial effects of the invention are as follows:
the growth of crystal grains is controlled by controlling the heat preservation time and the cooling rate in the sintering process, so that the pores are changed from communication to isolation. Due to volatilization of the S element, formed S vacancies are increased, phonon scattering is enhanced, and lower heat conductivity is obtained. In addition, the crystal grains grow up to make the pores smaller, the scattering mechanism changes, the increase of the scattering factor increases the Seebeck coefficient, and the Cu is obtained in two aspects 2 The S material obtains good thermoelectric performance. The method provides a method for preparing the thermoelectric material Cu with good thermoelectric performance, which is simple in operation and low in cost 2 S, S. The prepared thermoelectric material is nontoxic and low in price, and is Cu 2 The development of S-based thermoelectric materials in the field of thermoelectric materials in the high temperature region provides a new direction.
Drawings
FIG. 1a is an XRD of a powder sample according to the invention in examples 1, 2 and 3; b is XRD of the bulk samples in examples 1, 2 and 3 of the present invention.
FIGS. 2a, b, c are SEM's of samples of examples 1, 2, 3 of the present invention; d, e, f are EDS of the bulk samples of examples 1, 2, 3 of the present invention.
FIG. 3a shows the electrical conductivity of the samples of examples 1, 2 and 3 according to the present invention; b is the Seebeck coefficient of the samples in the examples 1, 2 and 3; c is the power factor of the samples in examples 1, 2 and 3 of the present invention.
FIG. 4a shows lattice thermal conductivities of samples in examples 1, 2 and 3 according to the present invention; b is the thermal conductivity of the samples in examples 1, 2, 3 of the present invention.
FIG. 5 shows thermoelectric figures of samples in examples 1, 2 and 3 according to the present invention.
Detailed Description
The present invention will be further described in connection with the following examples, wherein the details are not set forth in any of the conventional or common general knowledge in the art.
Example 1
Tubular furnace sintering preparation Cu 2 The method for S thermoelectric material comprises the following specific steps:
(1) 3.41g of CuCl was dissolved in 20ml of absolute ethanol with magnetic stirring 2 ·2H 2 O；
(2) 0.32g of sulfur powder was dissolved in 10ml of diethylenetriamine under magnetic stirring;
(3) Slowly dripping the mixed solution in the step (2) into CuCl in the step (1) 2 Stirring the solution uniformly;
(4) Adding the mixed solution obtained in the step (3) into a 100ml reaction kettle, and reacting for 12 hours at 180 ℃;
(5) Centrifuging the reaction solution obtained in the step (4) at 8000r/min, and then cleaning and drying (drying at 60 ℃ for 12 h);
(6) Tabletting the dried powder obtained in the step (5) (10 Mpa, 10 min), and introducing argon-hydrogen mixture into a tube furnace (20 cm) 3 And/min) is heated to 600 ℃ at 3 ℃/min for 2h, the temperature reduction rate is 10 ℃/min, the temperature is kept at 400 ℃ for 30min, the temperature reduction rate is 2 ℃/min, and the temperature is kept at 300 ℃ and 200 ℃ for 30min respectively.
The thermoelectric performance test result shows that the pure phase Cu 2 S has a thermal conductivity between 323K and 773K as low as 0.31 W.K -1 ·m -1 . The thermoelectric figure of merit ZT can reach 0.17 at 773K at maximum.
Example 2
Tubular furnace sintering preparation Cu 2 The method for S thermoelectric material comprises the following specific steps:
(1) 3.41g of CuCl was dissolved in 20ml of absolute ethanol with magnetic stirring 2 ·2H 2 O；
(2) 0.32g of sulfur powder was dissolved in 10ml of diethylenetriamine under magnetic stirring;
(3) Slowly dripping the mixed solution in the step (2) into CuCl in the step (1) 2 Stirring the solution uniformly;
(4) Adding the mixed solution obtained in the step (3) into a 100ml reaction kettle, and reacting for 12 hours at 180 ℃;
(5) Centrifuging the reaction solution obtained in the step (4) at 8000r/min, and then cleaning and drying (drying at 60 ℃ for 12 h);
(6) Tabletting the dried powder obtained in the step (5) (10 Mpa, 10 min), and introducing argon-hydrogen mixture into a tube furnace (20 cm) 3 And/min) is heated to 700 ℃ at 3 ℃/min for 2h, the temperature reduction rate is 10 ℃/min, the temperature is kept at 400 ℃ for 30min, the temperature reduction rate is 2 ℃/min, and the temperature is kept at 300 ℃ and 200 ℃ for 30min respectively.
The thermoelectric performance test result shows that the pure phase Cu 2 S has a thermal conductivity between 323K and 773K as low as 0.34 W.K -1 ·m -1 . The thermoelectric figure of merit ZT can reach 0.22 at 773K at maximum.
Example 3
Tubular furnace sintering preparation Cu 2 The method for S thermoelectric material comprises the following specific steps:
(1) 3.41g of CuCl was dissolved in 20ml of absolute ethanol with magnetic stirring 2 ·2H 2 O；
(2) 0.32g of sulfur powder was dissolved in 10ml of diethylenetriamine under magnetic stirring;
(3) Slowly dripping the mixed solution in the step (2) into CuCl in the step (1) 2 Stirring the solution uniformly;
(4) Adding the mixed solution obtained in the step (3) into a 100ml reaction kettle, and reacting for 12 hours at 180 ℃;
(5) Centrifuging the reaction solution obtained in the step (4) at 8000r/min, and then cleaning and drying (drying at 60 ℃ for 12 h);
(6) Tabletting the dried powder obtained in the step (5) (10 Mpa, 10 min), and introducing argon-hydrogen mixture into a tube furnace (20 cm) 3 And/min) is heated to 600 ℃ at 3 ℃/min for 2h, the temperature reduction rate is 10 ℃/min, the temperature is kept at 400 ℃ for 30min, the temperature reduction rate is 2 ℃/min, and the temperature is kept at 300 ℃ and 200 ℃ for 30min respectively.
The thermoelectric performance test result shows that the pure phase Cu 2 S has a thermal conductivity between 323K and 773K as low as 0.28 W.K -1 ·m -1 . The thermoelectric figure of merit ZT can reach 0.12 at 773K at maximum.
In summary, the invention provides a tubular furnace sintering method for preparing Cu 2 Method for producing S thermoelectric material, and S vacancy formation in Cu 2 S reduces the thermal conductivity of the matrix material. By utilizing the growth of crystal grains, the isolated pores are increased, the scattering factor is enhanced, and a higher Seebeck coefficient is obtained, thereby promoting Cu 2 Thermoelectric properties of S-based materials. Under the synergistic effect of the two, cu 2 The thermal conductivity of the S thermoelectric material is greatly reduced, the Seebeck coefficient is improved to a certain extent, and the thermoelectric performance is optimized. The Cu prepared in example 2 was found by thermoelectric performance testing 2 The Seebeck coefficient of S (700 ℃) can reach 479.6 mu V/K, which is the same as Cu prepared in example 1 2 S (600 ℃ C.) is improved by approximately 7% compared with Cu prepared in example 3 2 S (800 ℃) is raised by approximately 28%. Cu (Cu) 2 S (700 ℃) has a maximum thermoelectric figure of merit of 0.22, which is the same as Cu prepared in example 1 2 S (600 ℃ C.) is improved by approximately 38% compared with Cu prepared in example 3 2 S (800 ℃) is raised by approximately 83%. Besides, the invention combines simple hydrothermal synthesis technology and tube furnace sintering, thereby further reducing the production cost. The invention widens Cu 2 Application of S in the field of thermoelectric materials in high temperature area for optimizing Cu 2 S thermoelectric performance provides a new idea.
Claims (7)
1. Tubular furnace sintering preparation Cu 2 S the method of thermoelectric material, characterized by, the concrete step is as follows:
(1) Dissolving CuCl under the conditions of water bath and magnetic stirring 2 ·2H 2 O；
(2) Under the conditions of water bath and magnetic stirring, diethylenetriamine is used as a solvent to dissolve sulfur powder;
(3) Slowly dripping the mixed solution obtained in the step (1) into the mixed solution obtained in the step (2), and uniformly stirring;
(4) Adding the mixed solution obtained in the step (3) into a reaction kettle for reaction;
(5) Centrifuging, cleaning and drying the reaction solution obtained in the step (4);
(6) Tabletting the dried powder obtained in the step (5), and sintering in a tube furnace.
2. Tube furnace sintering of Cu according to claim 1 2 A method for producing an S thermoelectric material, characterized by comprising the step (1) of CuCl 2 ·2H 2 The addition amount of O was 3.41g, and 20ml of absolute ethyl alcohol was mixed and stirred for 30 minutes.
3. Tube furnace sintering of Cu according to claim 1 2 The preparation method of the S thermoelectric material is characterized in that the addition amount of sulfur powder in the step (2) is 0.32g, 10ml of diethylenetriamine is added, and the mixing and stirring time is 30min.
4. A tubular furnace for Cu production according to claim 1 2 The preparation method of the S thermoelectric material is characterized in that the stirring time in the step (3) is 30min.
5. Tube furnace sintering of Cu according to claim 1 2 The preparation method of the S thermoelectric material is characterized in that the hydrothermal reaction in the step (4) is required to react for 12 hours at 180 ℃.
6. Tube furnace sintering of Cu according to claim 1 2 A preparation method of the S thermoelectric material is characterized in thatThe rotational speed of the centrifuge in the step (5) is 8000r/min, the time is 5min, and the drying is carried out for 12h at 60 ℃.
7. Tube furnace sintering of Cu according to claim 1 2 The preparation method of the S thermoelectric material is characterized in that the pressure of the tablet press in the step (6) is 10Mpa, the time is 10min, the argon atmosphere is 80% hydrogen atmosphere is 20%, the heating rate is 3 ℃/min, the heat preservation time is 2h at 700 ℃, the cooling rate is 10 ℃/min, the heat preservation time is 30min at 400 ℃, the cooling rate is 2 ℃/min, and the heat preservation time is 30min at 300 ℃ and 200 ℃.
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Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444656A (en) * | 2019-08-20 | 2019-11-12 | 上海第二工业大学 | A kind of preparation method of cuprous sulfide complex silicon carbide block thermoelectric material |
| CN111883642A (en) * | 2020-08-06 | 2020-11-03 | 重庆大学 | Cu 2-xS-based thermoelectric material and solvothermal preparation method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110444656A (en) * | 2019-08-20 | 2019-11-12 | 上海第二工业大学 | A kind of preparation method of cuprous sulfide complex silicon carbide block thermoelectric material |
| CN111883642A (en) * | 2020-08-06 | 2020-11-03 | 重庆大学 | Cu 2-xS-based thermoelectric material and solvothermal preparation method |
Non-Patent Citations (2)
| Title |
|---|
| 张沁沁等: "水热法制备Cu2S及其热电性能研究", 《功能材料》, 31 December 2017 (2017-12-31), pages 11197 - 11203 * |
| 林锦豪;谢华清;吴子华;李奕怀;王元元;: "Cu_(2-x)S和Cu_(2-x)Se类液态材料的可控制备与热电性能研究进展", 材料导报, no. 07, 10 April 2020 (2020-04-10) * |
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