CN108467062A - A kind of rose-shaped BiOCl and the purposes as electrode material - Google Patents
A kind of rose-shaped BiOCl and the purposes as electrode material Download PDFInfo
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- CN108467062A CN108467062A CN201810163429.0A CN201810163429A CN108467062A CN 108467062 A CN108467062 A CN 108467062A CN 201810163429 A CN201810163429 A CN 201810163429A CN 108467062 A CN108467062 A CN 108467062A
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- rose
- biocl
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- shaped biocl
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- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01G—COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F
- C01G29/00—Compounds of bismuth
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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
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- 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
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- Inorganic Chemistry (AREA)
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Abstract
The invention discloses a kind of rose-shaped BiOCl and as the purposes of electrode material, which is prepared via a method which：First, it takes bismuth nitrate and sodium chloride to be added in ethylene glycol, stirs 0.5~1.5h, per 20mL ethylene glycol addition 1.2~1.4mmol bismuth nitrates and 7.5~8.5mmol sodium chloride；Then, which is transferred in polytetrafluoroethyllining lining and carries out hydro-thermal reaction, 160 180 DEG C of 5.5 6.5h of isothermal reaction；Finally, cooling is taken out, centrifuges, wash, being drying to obtain rose-shaped BiOCl.Rose-shaped BiOCl provided by the invention has the specific capacitance of 1366mF/g under the current density of 31.25mA/g, after 2500 circle of cycle, still has 89% initial capacitance, specific capacitance is high and cycle efficieny is high, can be used as electrode material.
Description
Technical field
The invention belongs to chemical fields, are related to a kind of rose-shaped BiOCl and the purposes as electrode material.
Background technology
21 century, extensive storing up electricity are one of the critical issues of current new energy technology development.Either renewable new energy
The efficient utilization in source (such as photoelectricity and wind-powered electricity generation), or the following clean traffic based on electric vehicle, are required to the big of Cheap highly effective
Scale storing up electricity is as technical support.In existing scale energy storage mode, the characteristics of secondary cell technology is simple and efficient with it by
To extensive concern, become the main flow direction of application development in recent years.However, existing secondary cell system is nearly all difficult to completely
The application requirement of the extensive storing up electricity of foot.Traditional plumbic acid, ickel-cadmium cell contain a large amount of harmful heavy metal elements, large-scale application
It pollutes the environment；Ni-mh, all-vanadium flow battery use expensive rare metal, are difficult to meet extensive storage in resource and price
The cost requirement of electricity.Although advanced lithium ion battery is considered as the ideal system of energy storage technology, the money of lithium on the earth
Can source reserves support extensive stored energy application, be still controversial problem.In principle, it is suitable for extensive storing up electricity application
Secondary cell system must have the characteristics that resource is extensive, cheap, environmental-friendly, safe and reliable, from resource and environment etc.
From the aspect of, sodium-ion battery has prodigious advantage as stored energy application, causes researcher widely emerging again in recent years
Interest.Since bismuth element is a kind of nontoxic green metal, in recent years in electrode material preparation, people pay close attention to it increasing.
Wherein BiOCl can be used as battery material and caused to pay close attention to due to its unique layer structure.
Currently, there are no people to report chemical properties of the BiOCl as electrode material.
Invention content
The purpose of the present invention is to overcome the deficiency in the prior art, provides a kind of rose-shaped BiOCl and is used as electrode material
Purposes.
The above-mentioned purpose of the present invention is achieved by following technical solution：
A kind of rose-shaped BiOCl, is prepared via a method which：First, take bismuth nitrate and sodium chloride that second two is added
In alcohol, 0.5~1.5h is stirred, per 20mL ethylene glycol addition 1.2~1.4mmol bismuth nitrates and 7.5~8.5mmol sodium chloride；So
Afterwards, which is transferred in polytetrafluoroethyllining lining and carries out hydro-thermal reaction, 160-180 DEG C of isothermal reaction 5.5-6.5h；Finally,
Cooling is taken out, centrifuges, wash, being drying to obtain rose-shaped BiOCl.
Preferably, the bismuth nitrate is five water bismuth nitrates, and 20mL ethylene glycol adds the five water bismuth nitrates of 1.3mmol.
Preferably, 20mL ethylene glycol adds 8mmol sodium chloride.
Preferably, bismuth nitrate and sodium chloride stir 1h after ethylene glycol is added.
Preferably, solution is reacted into 6h in 170 DEG C of incubation water heatings.
Above-mentioned rose-shaped BiOCl is used as the purposes of electrode material.
Advantages of the present invention：
The present invention provides a kind of rose-shaped BiOCl, the rose-shaped BiOCl under the current density of 31.25mA/g,
The specific capacitance for having 1366mF/g still has 89% initial capacitance, specific capacitance height and cycle efficieny after 2500 circle of cycle
Height may be used as electrode material.
Description of the drawings
Fig. 1 is Scanning Electron microscope (SEM) figure of the BiOCl prepared, and the BiOCl that as seen from Figure 1 prepared by this method is
The rosettes structure of more regular nanometer sheet composition.
Fig. 2 is X-ray diffraction (XRD) figure of the BiOCl prepared, and the BiOCl that as seen from Figure 2 prepared by this method is pure
BiOCl crystal, standard card JCPDS:85-0861.
Fig. 3 is charging and discharging curve and its specific capacitance variation tendency, the BiOCl electrode materials tool prepared as seen from Figure 3
There are stable charging and discharging curve and higher specific capacitance, which has under the current density of 31.25mA/g
The specific capacitance of 1366mF/g.
Fig. 4 is the cycle efficieny figure that the cycle 2500 of the BiOCl electrode materials prepared is enclosed, as seen from Figure 4 BiOCl electricity
Pole material still has 90% initial capacitance after 2500 circle of cycle, there is higher cycle efficieny.
Specific implementation mode
It is specific with reference to the accompanying drawings and examples to introduce essentiality content of the present invention, but the guarantor of the present invention is not limited with this
Protect range.
Embodiment 1：Rose-shaped BiOCl
A kind of rose-shaped BiOCl, is prepared via a method which：First, take bismuth nitrate and sodium chloride that second two is added
In alcohol, 1h is stirred, per 20mL ethylene glycol addition 1.3mmol bismuth nitrates and 8mmol sodium chloride；Then, which is transferred to poly-
Hydro-thermal reaction, 170 DEG C of isothermal reaction 6h are carried out in tetrafluoroethene liner；Finally, cooling is taken out, centrifuges, wash, be drying to obtain rose
Rare flower-shaped BiOCl.
Fig. 1 is Scanning Electron microscope (SEM) figure of the BiOCl prepared, and the BiOCl that as seen from Figure 1 prepared by this method is
The rosettes structure of more regular nanometer sheet composition.
Fig. 2 is X-ray diffraction (XRD) figure of the BiOCl prepared, and the BiOCl that as seen from Figure 2 prepared by this method is pure
BiOCl crystal, standard card JCPDS:85-0861.
Embodiment 2：Rose-shaped BiOCl
A kind of rose-shaped BiOCl, is prepared via a method which：First, take bismuth nitrate and sodium chloride that second two is added
In alcohol, 0.5h is stirred, per 20mL ethylene glycol addition 1.2mmol bismuth nitrates and 7.5mmol sodium chloride；Then, which is shifted
To carrying out hydro-thermal reaction, 160 DEG C of isothermal reaction 6.5h in polytetrafluoroethyllining lining；Finally, cooling, centrifugation, washing, drying are taken out
Up to rose-shaped BiOCl.BiOCl prepared by the embodiment and 1 gained BiOCl consistent appearances of embodiment.
Embodiment 3：Rose-shaped BiOCl
A kind of rose-shaped BiOCl, is prepared via a method which：First, take bismuth nitrate and sodium chloride that second two is added
In alcohol, 1.5h is stirred, per 20mL ethylene glycol addition 1.4mmol bismuth nitrates and 8.5mmol sodium chloride；Then, which is shifted
To carrying out hydro-thermal reaction, 180 DEG C of isothermal reaction 5.5h in polytetrafluoroethyllining lining；Finally, cooling, centrifugation, washing, drying are taken out
Up to rose-shaped BiOCl.BiOCl prepared by the embodiment and 1 gained BiOCl consistent appearances of embodiment.
Test case one：
Test process is as follows：
According to mass ratio 8：1：1 BiOCl for preparing embodiment 1 is mixed with acetylene black and Kynoar, grinding 30
Minute, 1-Methyl-2-Pyrrolidone is added, is coated on carbon cloth, is air-dried 24 hours, electrode is made.
By working electrode 0.5mol/L Na2SO4It is impregnated in solution, uses platinum filament as anode, Hg/HgO is as reference electricity
Pole measures charging and discharging curve under the voltage of 0-0.7V, and according to formula：
Csp=It/ (Δ Vm) (1)
The specific capacitance under different current densities is calculated, wherein I is size of current, and t is discharge time, and △ V are voltage difference, m
For BiOCl, acetylene black and the vinylidene fluoride gross mass on carbon cloth.
Fig. 3 is gained charging and discharging curve and its specific capacitance variation tendency.The BiOCl electrode materials prepared as seen from Figure 3
Expect with stable charging and discharging curve and higher specific capacitance.Current densities of the rose-shaped BiOCl in 31.25mA/g
Under, there is the specific capacitance of 1366mF/g.
Test case two：
By electrode 0.5mol/L Na2SO4Impregnated in solution, use platinum filament as anode, Hg/HgO as reference electrode,
The charging and discharging curve of BiOCl is measured under the voltage of 0-0.7V, and every 125 cycle takes a bit, and electricity is calculated according to the formula of (1)
Capacitance divided by initial capacitance value obtain corresponding efficiency.
Fig. 4 is the cycle efficieny figure that the cycle 2500 of the BiOCl electrode materials prepared is enclosed.BiOCl electricity as seen from Figure 4
Pole material still has 90% initial capacitance after 2500 circle of cycle, there is higher cycle efficieny.
To sum up, the present invention provides a kind of rose-shaped BiOCl, the electric currents of the rose-shaped BiOCl in 31.25mA/g is close
Under degree, there is the specific capacitance of 1366mF/g, after 2500 circle of cycle, still has 89% initial capacitance, specific capacitance is high and follows
Ring is efficient, may be used as electrode material.
The effect of above-described embodiment is specifically to introduce the essentiality content of the present invention, but those skilled in the art should know
Protection scope of the present invention should not be confined to the specific embodiment by road.
Claims (6)
1. a kind of rose-shaped BiOCl, which is characterized in that be prepared via a method which：First, bismuth nitrate and sodium chloride are taken
It is added in ethylene glycol, stirs 0.5~1.5h, per 20mL ethylene glycol addition 1.2~1.4mmol bismuth nitrates and 7.5~8.5mmol chlorine
Change sodium；Then, which is transferred in polytetrafluoroethyllining lining and carries out hydro-thermal reaction, 160-180 DEG C of isothermal reaction 5.5-
6.5h；Finally, cooling is taken out, centrifuges, wash, being drying to obtain rose-shaped BiOCl.
2. rose-shaped BiOCl according to claim 1, it is characterised in that：The bismuth nitrate is five water bismuth nitrates, 20mL second
Glycol adds the five water bismuth nitrates of 1.3mmol.
3. rose-shaped BiOCl according to claim 2, it is characterised in that：20mL ethylene glycol adds 8mmol sodium chloride.
4. rose-shaped BiOCl according to claim 1, it is characterised in that：1h is stirred after ethylene glycol is added.
5. rose-shaped BiOCl according to claim 1, it is characterised in that：Solution is reacted into 6h in 170 DEG C of incubation water heatings.
6. any rose-shaped BiOCl of claim 1-5 are used as the purposes of electrode material.
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| CN201810163429.0A CN108467062A (en) | 2018-02-27 | 2018-02-27 | A kind of rose-shaped BiOCl and the purposes as electrode material |
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| CN201810163429.0A CN108467062A (en) | 2018-02-27 | 2018-02-27 | A kind of rose-shaped BiOCl and the purposes as electrode material |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105263A (en) * | 2021-11-12 | 2022-03-01 | 江苏科技大学 | Preparation method of bismuth oxychloride graphite composite electrode material |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265076A (en) * | 2013-06-07 | 2013-08-28 | 南京信息工程大学 | Preparation method of sheet-like bismuth oxychloride photocatalyst |
| CN105396603A (en) * | 2015-12-08 | 2016-03-16 | 辽宁石油化工大学 | Bismuth oxychloride catalyst with visible light response core-shell structure and preparation method thereof |
| CN106450287A (en) * | 2016-10-31 | 2017-02-22 | 湘潭大学 | Bismuth oxyfluoride/nickel hydroxide secondary alkaline battery and preparation method thereof |
-
2018
- 2018-02-27 CN CN201810163429.0A patent/CN108467062A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103265076A (en) * | 2013-06-07 | 2013-08-28 | 南京信息工程大学 | Preparation method of sheet-like bismuth oxychloride photocatalyst |
| CN105396603A (en) * | 2015-12-08 | 2016-03-16 | 辽宁石油化工大学 | Bismuth oxychloride catalyst with visible light response core-shell structure and preparation method thereof |
| CN106450287A (en) * | 2016-10-31 | 2017-02-22 | 湘潭大学 | Bismuth oxyfluoride/nickel hydroxide secondary alkaline battery and preparation method thereof |
Non-Patent Citations (1)
| Title |
|---|
| 边宇卓等: "（110）晶面暴露的BiOCl制备及光催化活性研究", 《哈尔滨师范大学自然科学学报》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114105263A (en) * | 2021-11-12 | 2022-03-01 | 江苏科技大学 | Preparation method of bismuth oxychloride graphite composite electrode material |
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