CN103319938A - Oxygen sensor electrode printing ink and application thereof - Google Patents
Oxygen sensor electrode printing ink and application thereof Download PDFInfo
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- CN103319938A CN103319938A CN2013102264724A CN201310226472A CN103319938A CN 103319938 A CN103319938 A CN 103319938A CN 2013102264724 A CN2013102264724 A CN 2013102264724A CN 201310226472 A CN201310226472 A CN 201310226472A CN 103319938 A CN103319938 A CN 103319938A
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- oxygen sensor
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Abstract
The invention relates to the field of chemical materials, and specifically relates to an oxygen sensor electrode printing ink. The printing ink is composed of, by weight, 55-82.8% of platinum powder, 10-30% of an organic solvent, 2-20% of an organic adhesive, 5-20% of a dispersing agent, 0.1-1% of a defoaming agent, and 0.1-1% of a leveling agent. A sensor electrode prepared by using the printing ink has stable electrical performance. Especially, a maximal voltage of the sensor exceeds 0.95V, and response speed is fast.
Description
Technical field
The present invention relates to chemical industry grout material field, be specifically related to a kind of electrode of oxygen sensor printing ink and application thereof.
Background technology
Now, oxygen sensor is used for automobile exhaust pipe for detection of oxygen concentration in the tail gas, judges that with this fuel is dense burning or lean burn, then refers to automobile controller by ECU(ECU) thus the size of control fuel charge reaches the purpose of fuel-economizing.No matter be tubular type or sheet type sensor, its catalysis electrode mainly all is to be made of noble metal platinum, although the platinum consumption has accounted for the major part of sensor cost less, so how each producer all reduces the consumption of platinum in thinking.Such as the pattern that has provided electrode among CN101532985 Fig. 1, electrode is projected as the T font, and the consumption of platinum is less, but electrode area peak voltage less than normal is difficult near 1.0V.Patent CN102109484 provides a kind of electrode slurry of electrode of oxygen sensor, this electrode slurry contains mineral binder bond, organic binder bond and platinum powder, wherein, described mineral binder bond contains molybdic oxide, boron trioxide, silicon-dioxide, aluminium sesquioxide and zirconium white, wherein, take the gross weight of described mineral binder bond as benchmark, the content of molybdic oxide is the 10-50 % by weight, the content of boron trioxide is the 10-70 % by weight, the content of silicon-dioxide is the 5-40 % by weight, the content of aluminium sesquioxide is the 5-20 % by weight, and zirconic content is the 5-40 % by weight.A lot of oxide compounds have been added as sintering aid in this patent platinum slurry, these oxide compounds can effectively be controlled cost, but silicon-dioxide wherein has poisoning effect to platinum, and molybdic oxide especially the boron trioxide fusing point is low, after causing sintering three phase boundary seldom, voltage amplitude is obviously less than normal.Similar patent also has has added CaO, Na among the CN101655474
2O, Bi
2O
3Also can reduce the platinum powder consumption Deng low-temperature glaze, but reduce three phase boundary, namely low-temperature glaze is so that the sintering rear electrode is too fine and close, and specific surface area descends.
Summary of the invention
For above-mentioned technological deficiency, the technical issues that need to address of the present invention are in the situation that do not reduce oxygen sensor performance, and the consumption of platinum is high, the problem that the oxygen sensor cost is high.
For solving the problems of the technologies described above, technical scheme provided by the invention is: a kind of electrode of oxygen sensor printing ink, its weight percent consists of: platinum powder 55%-82.8%, organic solvent 10%-30%, organic adhesive 2%-20%, dispersion agent 5%-20%, defoamer 0.1%-1%, flow agent 0.1%-1%.
Further: in above-mentioned electrode of oxygen sensor printing ink, the preparation method of described platinum powder is, Platinic chloride is dissolved in the deionized water, adds glycine again, and is persistently overheating, makes pressure reach 4-6MPa, reacts 4-6 hour, obtains platinum powder after reaction finishes.Account for the respectively weight percent of ionized water of described Platinic chloride and glycine is (0.5-1) ‰.Described platinum powder is the meta particle diameter of 50 ± 10nm.
The general formula of described organic solvent alcohol is C
nH
2n+2O, wherein n is natural number, can be methyl alcohol, ethanol, propyl alcohol, butanols, enanthol, hexanol, octanol; At least a in benzene, dimethylbenzene, toluene, trieline, ketone such as acetone, pentanone, methylethylketone, the pimelinketone.
The dispersion agent that the present invention relates to comprises ANTI-TERRA-U, ANTI-TERRA-U 80, the ANTI-TERRA-U 100 of BYK company; DISPERBYK-101, DISPERBYK-130; BYK-220 S; LACTIMON, LACTIMON-WS; BYK-W 966; DISPERBYK; BYK-154; BYK-9076; DISPERBYK-108; Phosphate ester salt DISPERBYK-142, the DISPERBYK-145 of multipolymer contains segmented copolymer DISPERBYK-115, DISPERBYK-160, DISPERBYK-161, DISPERBYK-162, DISPERBYK-163, DISPERBYK-164,2, DISPERBYK-183, DISPERBYK-184, DISPERBYK-185, DISPERBYK-168, DISPERBYK-169, DISPERBYK-170, DISPERBYK-190, DISPERBYK-2150, the BYK-9077 of pigment affinity groups; Acrylate copolymer DISPERBYK-112, DISPERBYK-116, DISPERBYK-191, DISPERBYK-192, DISPERBYK-2000, DISPERBYK-2001, DISPERBYK-2010, DISPERBYK-2020, DISPERBYK-2025, DISPERBYK-2050, DISPERBYK-2070.
The organic binder bond that the present invention relates to can be U.S. Yi Shiman cellulose butyrate CAB381-0.5; The Mowital Series P VB of Kuraray company is such as Mowital B 60T, Mowital B 75H, Mowital B 60H etc.
The defoamer that the present invention relates to can be BYK-051, BYK-052, BYK-053, BYK-055, BYK-057, BYK-020, BYK-065, BYK-066N, BYK-067A, BYK-011, BYK-031, BYK-032, BYK-034, BYK-035, BYK-036, BYK-037, BYK-038, BYK-045, BYK-A555 BYK-071, BYK-060, BYK-018, BYK-044, BYK-094.
The flow agent that the present invention relates to can be: BYK-333, BYK-306, BYK-358N, BYK-310, BYK-354, BYK-356.
Above-mentioned electrode of oxygen sensor printing ink is to make by the method that those skilled in the art commonly use, and is about to above-mentioned platinum powder and is scattered in first in the ethanol, adds dispersion agent DISPERBYK-2010, organic binder bond PVB, defoamer and flow agent again.Evenly form stable electrode ink through the homogenizer dispersed with stirring.
The application that the present invention also provides above-mentioned electrode of oxygen sensor printing ink to be used for oxygen sensor, with the surfaces externally and internally of electrode ink bat printing to the tubular type oxygen sensor, 1400 ± 200 ℃ sintering 4-6 hour, form oxygen sensor.Described bat printing refers to printing ink by at least a surfaces externally and internally that prints to sensor in silk screen printing, spraying, Laser Printing, spray ink Printing, transfer printing, intaglio printing, letterpress, the planography way.Behind the sintering, the thickness of electrode ink is the 1-50 micron.
Compared with prior art, electrode of oxygen sensor printing ink of the present invention, its weight percent consists of: platinum powder 55%-82.8%, organic solvent 10%-30%, organic adhesive 2%-20%, dispersion agent 5%-20%, defoamer 0.1%-1%, flow agent 0.1%-1%.The present invention does not need to add the platinum printing ink that any glaze just can be realized good catalytic ability.Particularly, this printing ink does not contain low-temperature glaze such as sodium oxide, boron oxide etc., does not contain the oxide compound such as the aluminum oxide that stop grain growth yet, does not more contain the zirconium white for oxygen ion conduction.The consumption that the present invention can significantly reduce platinum does not reduce simultaneously the performance of sensor.
Way of example
Purport of the present invention is the performance that the consumption that significantly reduces platinum does not reduce simultaneously sensor.Below in conjunction with embodiment content of the present invention is described in further detail.
Embodiment 1
Platinum powder 60g is scattered in the 30g ethanol, adds again dispersion agent DISPERBYK-2010,5g binding agent PVB defoamer 0.2g, the flow agent 0.2g of 5g.Evenly form stable electrode ink through the homogenizer dispersed with stirring.To the surfaces externally and internally of tubular type oxygen sensor, 1400 ℃ of sintering 5 hours form the oxygen sensor of good signal with retroussage.
The preparation method of described platinum powder is, Platinic chloride is dissolved in the deionized water, adds glycine again, and is persistently overheating, makes pressure reach 4-6MPa, reacts 4-6 hour, obtains platinum powder after reaction finishes.Account for the respectively weight percent of ionized water of described Platinic chloride and glycine is (0.5-1) ‰.
Embodiment 2
Platinum powder 70g is scattered in the 30g toluene, and other processing condition are as embodiment 1.
Embodiment 3
Platinum powder 80g is scattered in the 30g trieline, and other processing condition are as embodiment 1.
Embodiment 4
Platinum powder 50g is scattered in the 20g acetone, and other processing condition are as embodiment 1.
Embodiment 5
On the basis of embodiment 1-4, to the surfaces externally and internally of tubular type oxygen sensor, 1300 ℃ of sintering 6 hours form the oxygen sensor of good signal with retroussage.
Embodiment 6
On the basis of embodiment 1-4, to the surfaces externally and internally of tubular type oxygen sensor, 1500 ℃ of sintering 4 hours form the oxygen sensor of good signal with retroussage.
The dispersion agent of following formula embodiment is ANTI-TERRA-U, ANTI-TERRA-U 80, the ANTI-TERRA-U 100 of BYK company; DISPERBYK-101, DISPERBYK-130; BYK-220 S; LACTIMON, LACTIMON-WS; BYK-W 966; DISPERBYK; BYK-154; BYK-9076; DISPERBYK-108; Phosphate ester salt DISPERBYK-142, the DISPERBYK-145 of multipolymer contains segmented copolymer DISPERBYK-115, DISPERBYK-160, DISPERBYK-161, DISPERBYK-162, DISPERBYK-163, DISPERBYK-164,2, DISPERBYK-183, DISPERBYK-184, DISPERBYK-185, DISPERBYK-168, DISPERBYK-169, DISPERBYK-170, DISPERBYK-190, DISPERBYK-2150, the BYK-9077 of pigment affinity groups; At least a among acrylate copolymer DISPERBYK-112, DISPERBYK-116, DISPERBYK-191, DISPERBYK-192, DISPERBYK-2000, DISPERBYK-2001, DISPERBYK-2010, DISPERBYK-2020, DISPERBYK-2025, DISPERBYK-2050, the DISPERBYK-2070.
The dispersion agent of following formula embodiment is U.S. Yi Shiman cellulose butyrate CAB381-0.5; The Mowital Series P VB of Kuraray company, at least a as among Mowital B 60T, Mowital B 75H, the Mowital B 60H.
The defoamer of following formula embodiment is at least a among BYK-051, BYK-052, BYK-053, BYK-055, BYK-057, BYK-020, BYK-065, BYK-066N, BYK-067A, BYK-011, BYK-031, BYK-032, BYK-034, BYK-035, BYK-036, BYK-037, BYK-038, BYK-045, BYK-A555 BYK-071, BYK-060, BYK-018, BYK-044, the BYK-094.
The flow agent of following formula embodiment is: BYK-333, BYK-306, BYK-358N, BYK-310, BYK-354, at least a among the BYK-356.
The oxygen sensor of above-described embodiment 1-6 gained is detected its peak voltage by following experiment condition respectively, light common spirit lamp, oxygen sensor with embodiment 1-6 gained places the spirit lamp internal flame respectively, with the waveform of golden moral KT600 oscillograph especial for automobile testing sensor, the waveform peak swing is that the peak voltage of sensor is as the sign of electrode of oxygen sensor catalytic capability.The peak voltage that test draws above-described embodiment is more than or equal to 0.95V, and fast response time illustrates that the oxygen sensor performance of above-described embodiment 1-6 gained is good.
Above-described embodiment is preferred embodiment of the present invention, is not to limit practical range of the present invention, therefore all equivalences of being done with the described feature of claim of the present invention and principle change or modify, all should be included within the claim scope of the present invention.
Claims (8)
1. electrode of oxygen sensor printing ink, its weight percent consists of: platinum powder 55%-82.8%, organic solvent 10%-30%, organic adhesive 2%-20%, dispersion agent 5%-20%, defoamer 0.1%-1%, flow agent 0.1%-1%.
2. electrode of oxygen sensor printing ink according to claim 1, it is characterized in that: the preparation method of described platinum powder is that Platinic chloride is dissolved in the deionized water, add again glycine, persistently overheating, make pressure reach 4-6MPa, reacted 4-6 hour, and obtained platinum powder after reaction finishes.
3. electrode of oxygen sensor printing ink according to claim 2 is characterized in that: account for the respectively weight percent of ionized water of described Platinic chloride and glycine is (0.5-1) ‰.
4. electrode of oxygen sensor printing ink according to claim 3, it is characterized in that: described platinum powder is the meta particle diameter of 50 ± 10nm.
5. electrode of oxygen sensor printing ink according to claim 1 is characterized in that: described organic solvent is at least a in methyl alcohol, ethanol, propyl alcohol, butanols, enanthol, hexanol, octanol, benzene, dimethylbenzene, toluene, trieline, ketone such as acetone, pentanone, methylethylketone, the pimelinketone.
6. the described electrode of oxygen sensor printing ink of any one is used for the application of oxygen sensor among the claim 1-5, it is characterized in that: with the surfaces externally and internally of electrode ink bat printing to the tubular type oxygen sensor, 1400 ± 200 ℃ sintering 4-6 hour, form oxygen sensor.
7. application according to claim 6 is characterized in that: described bat printing refers to printing ink by at least a surfaces externally and internally that prints to sensor in silk screen printing, spraying, Laser Printing, spray ink Printing, transfer printing, intaglio printing, letterpress, the planography way.
8. application according to claim 7 is characterized in that: behind the sintering, the thickness of electrode ink is the 1-50 micron.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201310226472.4A CN103319938B (en) | 2013-06-07 | 2013-06-07 | Oxygen sensor electrode printing ink and application thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310226472.4A CN103319938B (en) | 2013-06-07 | 2013-06-07 | Oxygen sensor electrode printing ink and application thereof |
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| CN103319938A true CN103319938A (en) | 2013-09-25 |
| CN103319938B CN103319938B (en) | 2015-02-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378973A (en) * | 2020-10-21 | 2021-02-19 | 清华-伯克利深圳学院筹备办公室 | Production method of electronic component, preparation method of sensor and application of sensor |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010170792A (en) * | 2009-01-21 | 2010-08-05 | Ngk Insulators Ltd | Laminate |
| CN101875131A (en) * | 2009-12-15 | 2010-11-03 | 武汉大学 | Preparation method of platinum nanoparticles |
| CN102109489A (en) * | 2009-12-29 | 2011-06-29 | 比亚迪股份有限公司 | Oxygen sensor and preparation method thereof |
-
2013
- 2013-06-07 CN CN201310226472.4A patent/CN103319938B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010170792A (en) * | 2009-01-21 | 2010-08-05 | Ngk Insulators Ltd | Laminate |
| CN101875131A (en) * | 2009-12-15 | 2010-11-03 | 武汉大学 | Preparation method of platinum nanoparticles |
| CN102109489A (en) * | 2009-12-29 | 2011-06-29 | 比亚迪股份有限公司 | Oxygen sensor and preparation method thereof |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112378973A (en) * | 2020-10-21 | 2021-02-19 | 清华-伯克利深圳学院筹备办公室 | Production method of electronic component, preparation method of sensor and application of sensor |
| CN112378973B (en) * | 2020-10-21 | 2023-12-22 | 清华-伯克利深圳学院筹备办公室 | Production method of electronic component, preparation method of sensor and application |
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| CN103319938B (en) | 2015-02-25 |
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