CN112909384A - Copper oxide photoelectrode and novel solar energy iron-air battery thereof - Google Patents
Copper oxide photoelectrode and novel solar energy iron-air battery thereof Download PDFInfo
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- CN112909384A CN112909384A CN202110124686.5A CN202110124686A CN112909384A CN 112909384 A CN112909384 A CN 112909384A CN 202110124686 A CN202110124686 A CN 202110124686A CN 112909384 A CN112909384 A CN 112909384A
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- copper oxide
- photoelectrode
- copper
- iron
- air battery
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- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000005751 Copper oxide Substances 0.000 title claims abstract description 37
- 229910000431 copper oxide Inorganic materials 0.000 title claims abstract description 37
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims abstract description 12
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims abstract description 12
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229940112669 cuprous oxide Drugs 0.000 claims abstract description 11
- 239000011259 mixed solution Substances 0.000 claims abstract description 10
- JVTAAEKCZFNVCJ-UHFFFAOYSA-N lactic acid Chemical compound CC(O)C(O)=O JVTAAEKCZFNVCJ-UHFFFAOYSA-N 0.000 claims abstract description 8
- 238000001354 calcination Methods 0.000 claims abstract description 7
- 238000004070 electrodeposition Methods 0.000 claims abstract description 6
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000001035 drying Methods 0.000 claims abstract description 4
- 239000004310 lactic acid Substances 0.000 claims abstract description 4
- 235000014655 lactic acid Nutrition 0.000 claims abstract description 4
- 238000002360 preparation method Methods 0.000 claims abstract description 4
- 238000005406 washing Methods 0.000 claims abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 4
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229910052802 copper Inorganic materials 0.000 claims abstract description 3
- 239000010949 copper Substances 0.000 claims abstract description 3
- OPQARKPSCNTWTJ-UHFFFAOYSA-L copper(ii) acetate Chemical compound [Cu+2].CC([O-])=O.CC([O-])=O OPQARKPSCNTWTJ-UHFFFAOYSA-L 0.000 claims abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 10
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000000243 solution Substances 0.000 claims description 5
- 239000003792 electrolyte Substances 0.000 claims description 4
- RUTXIHLAWFEWGM-UHFFFAOYSA-H iron(3+) sulfate Chemical compound [Fe+3].[Fe+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O RUTXIHLAWFEWGM-UHFFFAOYSA-H 0.000 claims description 4
- 229910000360 iron(III) sulfate Inorganic materials 0.000 claims description 4
- 229960004643 cupric oxide Drugs 0.000 description 27
- 238000006243 chemical reaction Methods 0.000 description 7
- 238000012360 testing method Methods 0.000 description 7
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 4
- 238000005286 illumination Methods 0.000 description 4
- 229910001416 lithium ion Inorganic materials 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 229910021607 Silver chloride Inorganic materials 0.000 description 2
- 230000001588 bifunctional effect Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011941 photocatalyst Substances 0.000 description 2
- HKZLPVFGJNLROG-UHFFFAOYSA-M silver monochloride Chemical compound [Cl-].[Ag+] HKZLPVFGJNLROG-UHFFFAOYSA-M 0.000 description 2
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910000365 copper sulfate Inorganic materials 0.000 description 1
- ARUVKPQLZAKDPS-UHFFFAOYSA-L copper(II) sulfate Chemical compound [Cu+2].[O-][S+2]([O-])([O-])[O-] ARUVKPQLZAKDPS-UHFFFAOYSA-L 0.000 description 1
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 description 1
- 230000001351 cycling effect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000000840 electrochemical analysis Methods 0.000 description 1
- 238000000635 electron micrograph Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000002803 fossil fuel Substances 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000001055 reflectance spectroscopy Methods 0.000 description 1
- 238000000985 reflectance spectrum Methods 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
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Classifications
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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
- H01M14/00—Electrochemical current or voltage generators not provided for in groups H01M6/00 - H01M12/00; Manufacture thereof
- H01M14/005—Photoelectrochemical storage cells
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
- H01G9/20—Light-sensitive devices
- H01G9/2022—Light-sensitive devices characterized by he counter electrode
-
- 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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
- Y02E10/542—Dye sensitized solar cells
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Hybrid Cells (AREA)
Abstract
The invention relates to a copper oxide photoelectrode and a novel solar iron-air battery. A preparation method of a copper oxide photoelectrode comprises the following steps: preparing a mixed solution of 0.1M copper acetate and 3M lactic acid, and adjusting the pH of the mixed solution by using 10M sodium hydroxide; performing electrodeposition by using FTO as a working electrode and a copper sheet as a counter electrode to obtain a cuprous oxide film; placing the cuprous oxide film into a muffle furnace for calcining; and cooling the obtained product to room temperature, washing with water, and drying to obtain the copper oxide photoelectrode. The invention can be realized by directly utilizing the sunlight to improve the discharge voltage of the iron-air battery.
Description
Technical Field
The invention relates to the technical field of photoelectrode and air battery thereof, in particular to a copper oxide photoelectrode and a novel solar iron-air battery thereof.
Background
The continuous consumption of fossil fuels has created a series of environmental pollution problems and a shortage of traditional energy resources. Therefore, the development and utilization of abundant, clean and renewable energy sources are the problems which are urgently needed to be solved at present. At present, the metal-air battery is a hot spot of research as an efficient and clean energy conversion device. And lithium ion batteries are also the most successful energy devices at present, and have been widely used in various fields. However, the electrodes of lithium ion batteries have the disadvantages of safety, high price, scarce raw material resources and the like, and limit the further development of the lithium ion batteries. Iron is a common material in life, and is the fourth most abundant element on earth, so from the viewpoint of cost and safety, the use of iron-air batteries as a replacement for lithium ion batteries is a very promising option. Optical energy has been widely used in electrochemical devices to enhance reaction kinetics and reduce overpotential of the reaction. When the energy received by the semiconductor is larger than the forbidden band width under illumination, the electrons on the valence band are excited to the conduction band, and holes at the positive point of the valence band are left, so that the discharge voltage of the battery can be increased. Therefore, how to fully utilize solar energy in the charging process of the iron-air battery is an urgent problem to be solved.
Disclosure of Invention
The invention aims to prepare a stable bifunctional photocatalyst copper oxide photoelectrode by using electrodeposition and calcination methods, assemble the stable bifunctional photocatalyst copper oxide photoelectrode into a photoelectrochemical iron-air cell, and perform electrochemical tests, which shows that the material can improve the discharge voltage of the cell under illumination and has good stability. The invention provides a new energy technology, which realizes the cooperative conversion of solar energy and electric energy.
A preparation method of a copper oxide photoelectrode comprises the following steps:
1) preparing a cuprous oxide film: preparing a mixed solution of 0.1M copper acetate and 3M lactic acid, and adjusting the pH of the mixed solution by using 10M sodium hydroxide; performing electrodeposition by using FTO as a working electrode and a copper sheet as a counter electrode to obtain a cuprous oxide film;
2) preparing a copper oxide photoelectrode: placing the cuprous oxide film into a muffle furnace for calcining; and cooling the obtained product to room temperature, washing with water, and drying to obtain the copper oxide photoelectrode.
In the above copper oxide photoelectrode, in step 1), the pH of the mixed solution reaches 10.
In the step 1), the electrodeposition is carried out at 60 ℃ for 10 minutes under the bias of-0.5V vs. Ag/AgCl.
In the above copper oxide photoelectrode, in the step 2), the calcination is performed at 500 ℃ for 3 hours.
A novel solar iron-air battery is constructed as follows,
1) any of the above-described copper oxide photoelectrodes was used as a cathode;
2) and (3) obtaining the novel solar iron-air battery by using an iron sheet as an anode and 0.5M ferric sulfate solution as electrolyte. Compared with the prior art, the invention has the following remarkable advantages:
1) according to the invention, ferric sulfate solution is used as electrolyte of the iron-air battery, solar energy is introduced into the iron-air battery, and the cooperative conversion of the solar energy and electric energy is realized.
2) According to the invention, the copper oxide photoelectrode is prepared by using an in-situ calcination method, and after illumination, the discharge voltage of the battery is improved. The novel solar iron-air battery realizes the cooperative conversion of light energy and electric energy, is a novel energy conversion device, and provides a new solution for solving the energy crisis.
Drawings
FIG. 1 is an electron micrograph of a copper oxide photoelectrode;
figure 2 is an XRD pattern of a copper oxide photo-electrode.
Fig. 3 is an ultraviolet-visible diffuse reflectance spectrum of a copper oxide photo-electrode.
Fig. 4 is an iron air cell cycling test.
Detailed Description
EXAMPLE 1 copper oxide photoelectrode
The preparation method comprises the following steps:
1) preparing a cuprous oxide film: 100mL of a mixed solution of 0.1M copper sulfate and 3M lactic acid was prepared, and the pH of the mixed solution was adjusted to 10 with 10M sodium hydroxide. And electrodepositing for 10 minutes at 60 ℃ under the bias of-0.3V vs. Ag/AgCl to obtain the cuprous oxide film.
2) Preparing a copper oxide photoelectrode: the cuprous oxide was calcined in a muffle furnace at 500 ℃ for 3 hours. And cooling the obtained product to room temperature, washing with water, and drying to obtain the copper oxide photoelectrode.
Example 2 novel solar iron-air cell
The copper oxide photoelectrode prepared in example 1 was used as a cathode; and (3) obtaining the novel solar iron-air battery by using an iron sheet as an anode and 0.5M ferric sulfate solution as electrolyte.
Example 3 Performance testing
1) Scanning electron microscope
The copper oxide photoelectrode obtained in example 1 was subjected to electron microscope scanning, and the morphology of the copper oxide photoelectrode was characterized by the electron microscope scanning. As shown in FIG. 1, the copper oxide photoelectrode prepared by the step 2) of the example has a bulk structure.
2) XRD test
The copper oxide photoelectrode was characterized and the results are shown in figure 2. As shown in fig. 2, the copper oxide photoelectrode has 6 diffraction peaks at 2 θ ═ 32.5 °, 35.5 °, 38.9 °, 58.2 °, 61.5 °, 65.78 °, and 68.1 °, and respectively corresponds to the (-110), (002), (-202), (-113), (022), and (-220) diffraction planes of the cuprite cupric oxide (JCPDS-No. 45-0937).
3) Ultraviolet-visible diffuse reflectance spectroscopy detection
The results of the uv-vis diffuse reflectance test on the copper oxide photo-electrode are shown in fig. 3. As can be seen from FIG. 3, the copper oxide photo-electrode starts to absorb light at a wavelength of about 900nm, which shows that the copper oxide photo-electrode of the present invention has a good response to visible light.
Example 4 Performance testing
The constant current charge and discharge test was performed on the solar iron-air battery, and the result is shown in fig. 4. As can be seen from fig. 4, the discharge voltage of the iron-air battery is increased to 0.9V during illumination, and the system is stable in 100-cycle charge-discharge tests.
Claims (5)
1. The copper oxide photoelectrode is characterized in that the preparation method comprises the following steps:
1) preparing a cuprous oxide film: preparing a mixed solution of 0.1M copper acetate and 3M lactic acid, and adjusting the pH of the mixed solution by using 10M sodium hydroxide; performing electrodeposition by using FTO as a working electrode and a copper sheet as a counter electrode to obtain a cuprous oxide film;
2) preparing a copper oxide photoelectrode: placing the cuprous oxide film into a muffle furnace for calcining; and cooling the obtained product to room temperature, washing with water, and drying to obtain the copper oxide photoelectrode.
2. The copper oxide photoelectrode of claim 1 wherein in step 1), the pH of the mixed solution reaches 10.
3. The copper oxide photoelectrode of claim 2 wherein in step 1), the electrodeposition is carried out at 60 ℃ for 10 minutes under a bias of-0.5 vvs.
4. The copper oxide photoelectrode of claim 3 wherein in step 2), said calcination is carried out at 500 ℃ for 3 hours.
5. A novel solar iron-air battery is characterized in that the battery is constructed as follows,
1) using any one of the copper oxide photoelectrodes of claims 1-4 as a cathode;
2) and (3) obtaining the novel solar iron-air battery by using an iron sheet as an anode and 0.5M ferric sulfate solution as electrolyte.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110124686.5A CN112909384A (en) | 2021-01-29 | 2021-01-29 | Copper oxide photoelectrode and novel solar energy iron-air battery thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110124686.5A CN112909384A (en) | 2021-01-29 | 2021-01-29 | Copper oxide photoelectrode and novel solar energy iron-air battery thereof |
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| Publication Number | Publication Date |
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| CN112909384A true CN112909384A (en) | 2021-06-04 |
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| CN202110124686.5A Pending CN112909384A (en) | 2021-01-29 | 2021-01-29 | Copper oxide photoelectrode and novel solar energy iron-air battery thereof |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824588A (en) * | 2022-04-29 | 2022-07-29 | 辽宁大学 | Gel-state chargeable discharge light-assisted iron-air battery and preparation method thereof |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040107317A (en) * | 2003-06-13 | 2004-12-20 | 재단법인 포항산업과학연구원 | Electrochemical deposition of Cu2O |
| US20150140455A1 (en) * | 2013-11-19 | 2015-05-21 | Toyota Jidosha Kabushiki Kaisha | Iron-air assembled cell and method for using the same |
| WO2017006666A1 (en) * | 2015-07-06 | 2017-01-12 | 株式会社神戸製鋼所 | Negative electrode for iron-air secondary cell, iron-air secondary cell, and method for manufacturing negative electrode for iron-air secondary cell |
| CN111370706A (en) * | 2020-02-12 | 2020-07-03 | 童圣富 | Positive electrode material of metal-air battery and preparation method thereof |
| CN111446328A (en) * | 2020-03-10 | 2020-07-24 | 辽宁工程技术大学 | Preparation method of pin structure solar cell with copper oxide as light absorption layer |
-
2021
- 2021-01-29 CN CN202110124686.5A patent/CN112909384A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20040107317A (en) * | 2003-06-13 | 2004-12-20 | 재단법인 포항산업과학연구원 | Electrochemical deposition of Cu2O |
| US20150140455A1 (en) * | 2013-11-19 | 2015-05-21 | Toyota Jidosha Kabushiki Kaisha | Iron-air assembled cell and method for using the same |
| WO2017006666A1 (en) * | 2015-07-06 | 2017-01-12 | 株式会社神戸製鋼所 | Negative electrode for iron-air secondary cell, iron-air secondary cell, and method for manufacturing negative electrode for iron-air secondary cell |
| CN111370706A (en) * | 2020-02-12 | 2020-07-03 | 童圣富 | Positive electrode material of metal-air battery and preparation method thereof |
| CN111446328A (en) * | 2020-03-10 | 2020-07-24 | 辽宁工程技术大学 | Preparation method of pin structure solar cell with copper oxide as light absorption layer |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114824588A (en) * | 2022-04-29 | 2022-07-29 | 辽宁大学 | Gel-state chargeable discharge light-assisted iron-air battery and preparation method thereof |
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