CN108675406A - A kind of novel SnO2Electrode and its preparation method and application - Google Patents
A kind of novel SnO2Electrode and its preparation method and application Download PDFInfo
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- 238000002360 preparation method Methods 0.000 title claims abstract description 30
- XOLBLPGZBRYERU-UHFFFAOYSA-N SnO2 Inorganic materials O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 claims abstract description 38
- 239000011248 coating agent Substances 0.000 claims abstract description 24
- 238000000576 coating method Methods 0.000 claims abstract description 24
- 239000010936 titanium Substances 0.000 claims abstract description 22
- URAYPUMNDPQOKB-UHFFFAOYSA-N triacetin Chemical compound CC(=O)OCC(OC(C)=O)COC(C)=O URAYPUMNDPQOKB-UHFFFAOYSA-N 0.000 claims abstract description 22
- 229910052719 titanium Inorganic materials 0.000 claims abstract description 21
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims abstract description 20
- 238000001035 drying Methods 0.000 claims abstract description 20
- 238000005488 sandblasting Methods 0.000 claims abstract description 7
- 229910001928 zirconium oxide Inorganic materials 0.000 claims abstract description 6
- 238000005119 centrifugation Methods 0.000 claims abstract description 5
- 238000000034 method Methods 0.000 claims abstract description 5
- RVTZCBVAJQQJTK-UHFFFAOYSA-N oxygen(2-);zirconium(4+) Chemical compound [O-2].[O-2].[Zr+4] RVTZCBVAJQQJTK-UHFFFAOYSA-N 0.000 claims abstract description 5
- 239000004576 sand Substances 0.000 claims abstract description 5
- 238000005422 blasting Methods 0.000 claims abstract description 4
- QTBSBXVTEAMEQO-UHFFFAOYSA-N Acetic acid Chemical compound CC(O)=O QTBSBXVTEAMEQO-UHFFFAOYSA-N 0.000 claims description 34
- WFDIJRYMOXRFFG-UHFFFAOYSA-N acetic acid anhydride Natural products CC(=O)OC(C)=O WFDIJRYMOXRFFG-UHFFFAOYSA-N 0.000 claims description 26
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 claims description 16
- 229910004664 Cerium(III) chloride Inorganic materials 0.000 claims description 14
- 229910021627 Tin(IV) chloride Inorganic materials 0.000 claims description 12
- HPGGPRDJHPYFRM-UHFFFAOYSA-J tin(iv) chloride Chemical compound Cl[Sn](Cl)(Cl)Cl HPGGPRDJHPYFRM-UHFFFAOYSA-J 0.000 claims description 9
- 235000011187 glycerol Nutrition 0.000 claims description 8
- 238000003756 stirring Methods 0.000 claims description 7
- 238000006056 electrooxidation reaction Methods 0.000 claims description 5
- 239000007788 liquid Substances 0.000 claims description 5
- VYLVYHXQOHJDJL-UHFFFAOYSA-K cerium trichloride Chemical compound Cl[Ce](Cl)Cl VYLVYHXQOHJDJL-UHFFFAOYSA-K 0.000 claims description 4
- TYSYCALJZQGVLT-UHFFFAOYSA-N 3-acetyl-3,4-dihydroxy-4-(hydroxymethyl)hexane-2,5-dione Chemical compound CC(=O)C(O)(CO)C(O)(C(C)=O)C(C)=O TYSYCALJZQGVLT-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 230000010355 oscillation Effects 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 238000010438 heat treatment Methods 0.000 claims description 2
- 238000000643 oven drying Methods 0.000 claims description 2
- 239000002245 particle Substances 0.000 claims description 2
- 238000002791 soaking Methods 0.000 claims description 2
- QCWXUUIWCKQGHC-UHFFFAOYSA-N Zirconium Chemical compound [Zr] QCWXUUIWCKQGHC-UHFFFAOYSA-N 0.000 claims 1
- 229910052726 zirconium Inorganic materials 0.000 claims 1
- 238000005507 spraying Methods 0.000 abstract description 2
- 239000000243 solution Substances 0.000 description 14
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 8
- 239000001301 oxygen Substances 0.000 description 8
- 229910052760 oxygen Inorganic materials 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 7
- 239000010410 layer Substances 0.000 description 7
- 239000002344 surface layer Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- 238000002474 experimental method Methods 0.000 description 3
- 230000003014 reinforcing effect Effects 0.000 description 3
- 239000002351 wastewater Substances 0.000 description 3
- KRHYYFGTRYWZRS-UHFFFAOYSA-N Fluorane Chemical compound F KRHYYFGTRYWZRS-UHFFFAOYSA-N 0.000 description 2
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 2
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 239000003054 catalyst Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 2
- WBZKQQHYRPRKNJ-UHFFFAOYSA-L disulfite Chemical compound [O-]S(=O)S([O-])(=O)=O WBZKQQHYRPRKNJ-UHFFFAOYSA-L 0.000 description 2
- 230000002779 inactivation Effects 0.000 description 2
- 230000035772 mutation Effects 0.000 description 2
- 238000000746 purification Methods 0.000 description 2
- MYMOFIZGZYHOMD-UHFFFAOYSA-N Dioxygen Chemical compound O=O MYMOFIZGZYHOMD-UHFFFAOYSA-N 0.000 description 1
- 241000270708 Testudinidae Species 0.000 description 1
- 150000008065 acid anhydrides Chemical class 0.000 description 1
- 239000003929 acidic solution Substances 0.000 description 1
- 238000007743 anodising Methods 0.000 description 1
- FAPDDOBMIUGHIN-UHFFFAOYSA-K antimony trichloride Chemical compound Cl[Sb](Cl)Cl FAPDDOBMIUGHIN-UHFFFAOYSA-K 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 229940075397 calomel Drugs 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 235000009508 confectionery Nutrition 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- ZOMNIUBKTOKEHS-UHFFFAOYSA-L dimercury dichloride Chemical group Cl[Hg][Hg]Cl ZOMNIUBKTOKEHS-UHFFFAOYSA-L 0.000 description 1
- 229910001882 dioxygen Inorganic materials 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005868 electrolysis reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 230000003628 erosive effect Effects 0.000 description 1
- ONWSXQXQPJHQPU-UHFFFAOYSA-N ethane-1,2-diol;2-hydroxypropane-1,2,3-tricarboxylic acid Chemical compound OCCO.OC(=O)CC(O)(C(O)=O)CC(O)=O ONWSXQXQPJHQPU-UHFFFAOYSA-N 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004519 grease Substances 0.000 description 1
- YADSGOSSYOOKMP-UHFFFAOYSA-N lead dioxide Inorganic materials O=[Pb]=O YADSGOSSYOOKMP-UHFFFAOYSA-N 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 238000010422 painting Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- BAZAXWOYCMUHIX-UHFFFAOYSA-M sodium perchlorate Chemical compound [Na+].[O-]Cl(=O)(=O)=O BAZAXWOYCMUHIX-UHFFFAOYSA-M 0.000 description 1
- 229910001488 sodium perchlorate Inorganic materials 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 238000004065 wastewater treatment Methods 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/467—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction
- C02F1/4672—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis by electrochemical disinfection; by electrooxydation or by electroreduction by electrooxydation
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F1/00—Treatment of water, waste water, or sewage
- C02F1/46—Treatment of water, waste water, or sewage by electrochemical methods
- C02F1/461—Treatment of water, waste water, or sewage by electrochemical methods by electrolysis
- C02F1/46104—Devices therefor; Their operating or servicing
- C02F1/46109—Electrodes
- C02F2001/46133—Electrodes characterised by the material
- C02F2001/46138—Electrodes comprising a substrate and a coating
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Organic Chemistry (AREA)
- Electrodes For Compound Or Non-Metal Manufacture (AREA)
Abstract
The present invention discloses a kind of novel SnO2Electrode and its preparation method and application is immersed in after Titanium base sandblasting in triacetyl glycerine coating solution, and novel SnO is made in centrifugation drying2Electrode.The present invention uses dry blasting technique, and zirconium oxide sand grains is significantly enhanced SnO using compressed air spraying to the surface of Titanium base2The mechanical strength of electrode coating, and then extend the service life of electrode.
Description
Technical field
The invention belongs to electrochemical technology fields, and in particular to a kind of novel SnO2Electrode and its preparation method and application.
Background technology
Electrochemical oxidation technology is considered as a kind of direct, efficient wastewater purification technology, has caused to close extensively
Note.Currently, electrochemical oxidation technology needs catalyst of the active metal as electrochemical oxidation reactions, it is more common at this stage
Catalyst is SnO2、PbO2Deng.
Traditional SnO2Electrode is prepared by by citric acid ethylene glycol mixing SnCl4Collosol and gel is prepared, repeatedly coating-roasting
Finished electrode is prepared.SnO made from the preparation method2Electrode has as a drawback that：1, tradition SnO2Electrode life
It is low, average life 100h；2, tradition SnO2Anodizing ability is low, and waste water treatment efficiency is low；3、SnO2The easy tortoise of electrode coating
It splits；Disadvantage mentioned above leads to SnO2Electrode is unable to scale application as the electrochemical oxidation technology of core component, limits electrification
Learn the popularization and development of oxidation technology.
So far, it there is no effective SnO2Preparation method can solve the above problems.
Invention content
The present invention provides a kind of novel SnO2Electrode and its preparation method and application efficiently solves traditional SnO2Electricity
The problem that pole service life is short, cracking is serious, oxygen evolution potential is low.
The purpose of the present invention is achieved by the following technical programs：
A kind of novel SnO2Electrode comprising Titanium base, the discrete zirconia particles for being distributed in the Titanium base surface and
Tin dioxide layer, the part stannic oxide in the tin dioxide layer are in contact with the Titanium base.
A kind of novel SnO2The preparation method of electrode comprising following steps：
A, Titanium base sandblasting；
B, it will include SnCl4、SbCl3And CeCl3Triacetyl glycerine coating solution be coated in sandblasting Titanium base surface；
C, centrifugation drying, which is placed on to dry in Muffle furnace, is made novel SnO2Electrode.
Preparation method described above, in step a, sandblasting uses dry blasting technique, utilizes the compression of 0.2~0.5Mpa empty
The zirconium oxide sand grains of 300~800 mesh is sprayed to the surface of Titanium base by gas, and is preserved in an acidic solution.
Preparation method described above, in step b, including SnCl4、SbCl3And CeCl3Triacetyl glycerine coating solution
Preparation：Glycerine preheats, and acetic acid and aceticanhydride is added, and stirs and coating bottom liquid is made, continue to heat, and SnCl is added4、SbCl3With
CeCl3, stir, drying, natural cooling obtains triacetyl glycerine coating solution.
In above-mentioned steps b, SnCl is added4、SbCl3And CeCl3Metal complex is formed with triacetyl glycerine.
Preparation method described above, in step b, glycerine preheating temperature is 50~70 DEG C, after acetic acid and acetic anhydride is added
1~2h is stirred, coating bottom liquid is made, SnCl is added4、SbCl3And CeCl3Continue heating temperature to 90~100 DEG C, stirring 1~
2h, 120~150 DEG C of baking oven drying temperature, 1~2h of drying time.
Preparation method described above, the triacetyl glycerine prepared by step b are stereochemical structure, and SnCl is added4、SbCl3
And CeCl3Complex reaction occurs with triacetyl glycerine afterwards, metal ion occupies the sky in triacetyl glycerine stereochemical structure
Position, substantially increases the load capacity of active metal.
Preparation method described above, in step b, acetic acid, acetic anhydride and glycerine molar ratio are 3：1：1；Acetic acid and SnCl4
Molar ratio is 1：0.1~0.5, SnCl4、SbCl3With CeCl3Molar ratio is 1：0.1~0.2：0.2~0.4.
Preparation method described above, in step c, oscillation soaking time is 6~12h, centrifugation 5~30min of drying, drying
80~100 DEG C of temperature, Muffle furnace 5~10min of drying, 500~600 DEG C of drying temperature, the drying in Muffle furnace 1~5 time, and
It is dried in oxygen-lean atmosphere.
In above-mentioned steps c, the reaction equation in Muffle furnace is：Triacetyl glycerine-Sn+O2→SnO2+H2O+CO2。
The rotating speed of preparation method described above, centrifuge is 2000~5000r/min.
Preparation method described above, the novel SnO of preparation2Electrode is used for the purposes of purification of waste water.
Oxygen deprivation in the present invention refers to that oxygen concentration is more than 0, is less than 10%.
The advantage of the invention is that：The novel SnO prepared through the invention2Electrode can be significantly reduced preparation section,
SnO2Electrode activity coating load amount significantly improves, and the oxidation efficiency of electrode is improved；Electrode coating crack phenomenon is basic
It eliminates, erosion of the waste water to coat inside during use can be effective against, effectively increase the service life of electrode.
Beneficial effects of the present invention：
1. the present invention uses dry blasting technique, by zirconium oxide sand grains using compressed air spraying to the surface of Titanium base, show
Work enhances SnO2The mechanical strength of electrode coating, and then extend the service life of electrode.
2. the present invention can greatly improve the load capacity of active metal using triacetyl glycerine as coating solution, shorten
Brush number, the effective preparation working hour for reducing electrode.
3. the present invention can make electrode coating more uniform using low-speed centrifugal rotary furnace drying mode, electrode painting is effectively reduced
The generation of layer cracking.
4. the present invention is using dustless oxygen deprivation barn to SnO2Electrode coating is toasted, and active metal and matrix electricity can be made
Pole combines even closer, reduces the gap between coating and matrix, effectively improves electrode life.
Description of the drawings
Fig. 1 is bath voltage variation relation figure in the embodiment of the present invention 3；
Fig. 2 is voltage and response current variation relation figure in the embodiment of the present invention 4；
Fig. 3 is SnO in the present invention2The structural schematic diagram of electrode；
In figure：1- Titanium base layers；2- zirconium oxide layers；3- tin dioxide layers.
Specific implementation mode
Following embodiment is intended to illustrate the content of invention, rather than is further limited to the scope of the present invention.
Embodiment 1
A kind of novel SnO2The preparation method of electrode, specifically comprises the following steps：
A, Titanium base pre-processes：Titanium base is immersed into 1h in the sodium hydroxide that 100 DEG C of mass fractions are 5%, is cleaned, later
The zirconium oxide sand grains of 800 mesh is sprayed to the surface of Titanium base using the compressed air of 0.2Mpa, and is stored in mass fraction and is
It is spare in 0.1% hydrofluoric acid solution；
B, the preparation of triacetyl glycerine coating solution：Glycerine is heated to 50 DEG C, acetic acid and aceticanhydride (acetic acid, acetic acid is added
Acid anhydride is 3 with glycerine molar ratio：1：1), coating bottom liquid is made in stirring 1h, continues to be heated to 90 DEG C, SnCl is added4、SbCl3With
CeCl3(acetic acid and SnCl4Molar ratio is 1：0.1, SnCl4、SbCl3With CeCl3Molar ratio is 1：0.1：0.2) 1h, is stirred, is put into
1h is dried in 120 DEG C of baking ovens, natural cooling obtains triacetyl glycerine coating solution；
C, novel SnO2It is prepared by electrode：It is sweet that titanium-based oscillation body made from step a is immersed in three acetic acid obtained by step b
In grease coating solution, Titanium base is then put into centrifugation drying 30min, drying temperature in the centrifuge that rotating speed is 2000r/min
It 100 DEG C, is then placed in oxygen-lean atmosphere Muffle furnace and dries 10min, 600 DEG C of drying temperature, the drying in Muffle furnace 5 times, i.e.,
Novel SnO can be made2Electrode.
Novel SnO prepared by the present embodiment2Electrode potential is 2.1V.
Embodiment 2
Prepare the solution of sodium perchlorate containing 10mM/L and 100mg/L phenol.The solution of 100mL is taken to inject in electrolytic cell, with
Novel SnO prepared by embodiment 12Electrode is anode, and using Ti or 304 stainless steels as cathode, two electrode areas are 60cm2, adjust
Pole plate spacing is 10mm, and it is 10mA/cm to open power supply and adjust electric current to keep output current density2, carry out at electrolysis at room temperature
90min is managed, 15~30min of interval is adopted, sample analysis.Phenol removal rate is more than 99.9%, while TOC after 90min is handled
Have dropped 91.4%.
Embodiment 3
The sulfuric acid solution containing 1mol/L is configured, the existing electrode A and electrode B of the present invention of selection 1*1cm sizes are as work
Make electrode and carries out reinforcing life experiment, current density 1A/cm in the sulfuric acid solution of configuration2, working electrode with to electrode
Spacing is 1cm, observes the variation of working electrode bath voltage under continuous duty, and experimental result is as shown in Figure 1：
Existing electrode A is able to maintain that the bath voltage steady operation about 75h of 3V or so, subsequent bath voltage gradually rise
Height illustrates that electrode active surface layer starts shedding off, this is because the resistance of electrode active surface layer is much smaller than the electricity of electrode matrix
Resistance, after electrode active surface layer falls off so that the direct connection circuit of electrode matrix leads to electricity after larger resistance access circuit
Pressure rises, and shows as bath voltage raising, so after bath voltage increases, that is, shows that electrode active surface layer starts to take off
It falls；Working time reaches 120h, and bath voltage is more than 3.5V, and illustrating electrode active surface layer, large area falls off, electrode
Inactivation.
Electrode of the present invention is able to maintain that the bath voltage steady operation 125h of 3V or so, subsequent bath voltage gradually rise
Height illustrates that electrode active surface layer starts shedding off；Working time reaches 200h, and bath voltage is more than 3.5V, illustrates electrode table
Large area falls off face active layer, electrode inactivation.
By comparison, electrode B stable work time of the present invention is 1.67 times of existing electrode A, and working time life-cycle is
1.67 times of existing electrode A.(this experiment is tested for reinforcing life, when working time and working time life-cycle are reinforcing
Between.)
Embodiment 4
The metabisulfite solution containing 1mol/L is configured, the existing electrode A of 1*1cm sizes and electrode B conduct of the present invention are chosen
Working electrode carries out linear scan experiment, sweep speed 50mV/cm in the metabisulfite solution of configuration2, working electrode with it is right
The spacing of electrode is 1cm, and reference electrode is calomel electrode, observes working electrode phase induced current in the case of continuous potential change
Variable quantity, experimental result is as shown in Figure 2：
In electrochemistry, oxygen evolution reaction occurs for electrode surface so that and the electron amount of electrode surface transfer sharply increases,
Response current mutation is shown as, the current potential of mutation is the take-off potential of oxygen evolution reaction, is referred to as oxygen evolution potential.
In current potential 1.6V or so, response current mutates existing electrode A, and electrode B of the present invention is in current potential 2.1V or so
When, response current mutates, this shows that electrode B of the present invention has higher oxygen evolution potential, can be in broader potential range
Interior stable output effective active electronics, is used for oxide target pollutant, rather than by electron transmission to hydrone for generating oxygen
Gas.
Claims (8)
1. a kind of novel SnO2Electrode, which is characterized in that it includes Titanium base, the discrete oxidation for being distributed in the Titanium base surface
Zirconium particle and tin dioxide layer, the part stannic oxide in the tin dioxide layer are in contact with the Titanium base.
2. a kind of novel SnO2The preparation method of electrode, which is characterized in that it includes the following steps：
A, Titanium base sandblasting；
B, it will include SnCl4、SbCl3And CeCl3Triacetyl glycerine coating solution be coated in sandblasting Titanium base surface；
C, centrifugation drying, which is placed on to dry in Muffle furnace, is made novel SnO2Electrode.
3. preparation method according to claim 2, which is characterized in that in step a, sandblasting uses dry blasting technique, utilizes
The zirconium oxide sand grains of 300~800 mesh is sprayed to the surface of Titanium base by the compressed air of 0.2~0.5Mpa, and is stored in acidity
In solution.
4. preparation method according to claim 2, which is characterized in that in step b, including SnCl4、SbCl3And CeCl3's
The preparation of triacetyl glycerine coating solution：Glycerine preheats, and acetic acid and aceticanhydride is added, and stirs and coating bottom liquid is made, continue to heat, add
Enter SnCl4、SbCl3And CeCl3, stir, drying, natural cooling obtains triacetyl glycerine coating solution.
5. preparation method according to claim 4, which is characterized in that in step b, glycerine preheating temperature is 50~70 DEG C,
1~2h is stirred after acetic acid and acetic anhydride is added, coating bottom liquid is made, SnCl is added4、SbCl3And CeCl3Continue heating temperature extremely
90~100 DEG C, stir 1~2h, 120~150 DEG C of baking oven drying temperature, 1~2h of drying time.
6. preparation method according to claim 4, which is characterized in that in step b, acetic acid, acetic anhydride and glycerine molar ratio
It is 3：0.1~1：0.1~1；Acetic acid and SnCl4Molar ratio is 1：0.1~0.5, SnCl4、SbCl3With CeCl3Molar ratio is 1：
0.1~0.2：0.2~0.4.
7. preparation method according to claim 2, which is characterized in that in step c, oscillation soaking time is 6~12h, from
The heart dries 5~30min, 80~100 DEG C of drying temperature, and Muffle furnace dries 5~10min, 500~600 DEG C of drying temperature, in Muffle
Drying in stove 1~5 time, and dried in oxygen-lean atmosphere.
8. novel SnO made from preparation method according to claim 2 or 32Electrode is used for the purposes of electrochemical oxidation.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110092449A (en) * | 2019-05-10 | 2019-08-06 | 生态环境部环境规划院 | A kind of SnO2The preparation method and its usage of electrode |
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