CN114563371A - In-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction - Google Patents
In-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction Download PDFInfo
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- CN114563371A CN114563371A CN202110728079.XA CN202110728079A CN114563371A CN 114563371 A CN114563371 A CN 114563371A CN 202110728079 A CN202110728079 A CN 202110728079A CN 114563371 A CN114563371 A CN 114563371A
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- 238000001514 detection method Methods 0.000 title claims abstract description 43
- 238000011065 in-situ storage Methods 0.000 title claims abstract description 39
- 238000006555 catalytic reaction Methods 0.000 title claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 24
- 239000002826 coolant Substances 0.000 claims abstract description 22
- 239000013307 optical fiber Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 6
- 239000003054 catalyst Substances 0.000 claims description 15
- 238000007789 sealing Methods 0.000 claims description 14
- 239000000463 material Substances 0.000 claims description 4
- 239000011810 insulating material Substances 0.000 claims description 3
- -1 polytetrafluoroethylene Polymers 0.000 claims description 3
- 229920001343 polytetrafluoroethylene Polymers 0.000 claims description 3
- 239000004810 polytetrafluoroethylene Substances 0.000 claims description 3
- 238000006243 chemical reaction Methods 0.000 abstract description 12
- 238000002474 experimental method Methods 0.000 abstract description 6
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 4
- 238000005286 illumination Methods 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract description 2
- 239000011941 photocatalyst Substances 0.000 description 14
- 238000002329 infrared spectrum Methods 0.000 description 6
- 238000013032 photocatalytic reaction Methods 0.000 description 5
- 239000000126 substance Substances 0.000 description 5
- 238000001228 spectrum Methods 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000835 fiber Substances 0.000 description 2
- 125000000524 functional group Chemical group 0.000 description 2
- 239000000543 intermediate Substances 0.000 description 2
- 230000001678 irradiating effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 230000003213 activating effect Effects 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 238000004458 analytical method Methods 0.000 description 1
- 238000012512 characterization method Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000011066 ex-situ storage Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- WURFKUQACINBSI-UHFFFAOYSA-M ozonide Chemical compound [O]O[O-] WURFKUQACINBSI-UHFFFAOYSA-M 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000006479 redox reaction Methods 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3581—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light using far infrared light; using Terahertz radiation
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- Toxicology (AREA)
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- General Health & Medical Sciences (AREA)
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Abstract
The invention discloses an in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction, wherein the side surface and the bottom of a sample cell are embedded in a heating block, a thermocouple electrically connected with a temperature controller is installed in the heating block, a condenser lens and an optical fiber communicated with a lamp box are arranged right above the sample cell, electrode plates and detachable electrodes are symmetrically arranged on two sides of the sample cell, infrared light incidence and emergence windows are symmetrically arranged on an upper end cover above the sample cell in a left-right mode, a coolant pipeline wound in a closed space is transversely arranged in the side wall of a lower shell at intervals, and an air inlet pipeline and an air outlet pipeline are arranged at the bottom of the lower shell; because the integrated means of ventilation, heating, cooling, illumination, high-voltage discharge and infrared reflection are combined in the closed space, the operation difficulty of the experiment is greatly reduced, the whole process of sample reaction and detection is not contacted with the outside, the possibility of sample pollution is reduced to the maximum extent, and the energy accompanied with a large amount of ultraviolet light can be utilized.
Description
Technical Field
The invention relates to the field of infrared spectrum analysis and test instruments, in particular to an in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction.
Background
Compared with the common thermochemical reaction, the plasma space is rich in extremely active high-activity substances such as molecules, free radicals, ions, electrons and excited atoms, the low-temperature plasma and the photocatalyst can generate a synergistic effect, after the photocatalyst is filled in the plasma discharge region, when light with energy larger than or equal to energy gap irradiates the photocatalyst, photocatalyst particles absorb the light to generate electron-hole pairs, and the electrons and the holes are separated and migrate to different positions on the particle surface to participate in the accelerated oxidation-reduction reaction and improve the conversion rate and the selectivity of the reaction.
In view of the fact that the life of low-temperature plasma weight-enriched substances is short, transient reaction processes are difficult to analyze through ex-situ characterization, while in-situ infrared is one of the commonly used catalytic reaction mechanism research means, but a plasma discharge device and a light reaction device are complex, and the existing plasma in-situ diffuse reflection infrared spectrum detection device cannot perform in-situ diffuse reflection infrared spectrum detection on photocatalytic reactions in a plasma environment.
In addition, when the plasma generating device generates low-temperature plasma, a large amount of ultraviolet light is accompanied, but the existing plasma in-situ diffuse reflection infrared spectrum detection device is difficult to utilize the energy, and the ultraviolet light can be cooperated with a light source provided by the light emitting device to catalyze the light reaction.
Therefore, there is still a need for improvement and development of the prior art.
Disclosure of Invention
In order to solve the technical problems, the invention provides an in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction, which can perform in-situ diffuse reflection infrared spectrum detection on the photocatalytic reaction in a plasma environment.
The technical scheme of the invention is as follows: an in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction comprises an upper end cover and a lower shell, wherein the upper end cover is reversely buckled on the lower shell to form a sealed space for catalytic reaction, and a sample cell for filling a catalyst sample is arranged at the center of the sealed space; wherein:
the side surface and the bottom of the sample cell are embedded in a heating block, and the heating block is electrically connected with a power supply; a thermocouple is also embedded in the heating block and is electrically connected with the temperature controller through a lead;
a light-gathering lens is arranged right above the sample cell, an optical fiber is arranged right above the light-gathering lens, and the other end of the optical fiber penetrates through the top of the upper end cover and is communicated with the lamp box;
electrode plates and detachable electrodes are symmetrically arranged on two sides of the sample cell, and the electrode plates and the detachable electrodes are respectively and electrically connected with a high-voltage power supply through leads;
an infrared light incident window and an infrared light emergent window are symmetrically arranged on the upper end cover above the sample cell from left to right;
coolant pipelines wound in the closed space are transversely arranged at intervals in the side wall of the lower shell, and two ends of each coolant pipeline are respectively communicated with a coolant inlet and a coolant outlet on the outer wall of the lower shell;
the bottom of the lower shell is respectively provided with an air inlet pipeline and an air outlet pipeline; one end of the air inlet pipeline is communicated with the bottom of the closed space, and the other end of the air inlet pipeline is communicated with the air inlet on the outer wall of the lower shell; one end of the air outlet pipeline penetrates through the heating block to be communicated with the bottom of the sample cell, and the other end of the air outlet pipeline is communicated with the air outlet on the outer wall of the lower shell.
The in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction is characterized in that: the lower shell is in a right cubic shape, the upper end of the lower shell is provided with an opening, and the upper end cover is hemispherical and is integrally connected with a square flange.
The in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction is characterized in that: four sealing threaded holes are symmetrically formed in the periphery of the lower shell, four sealing bolt through holes are correspondingly formed in the periphery of the upper end cover, and sealing bolts penetrate through the four sealing threaded holes to be connected with the upper end of the lower shell in a sealing mode.
The in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction is characterized in that: the sample cell is made of polytetrafluoroethylene materials and is cylindrical, one end of the sample cell is provided with a counter bore, the bottom of the counter bore is provided with a through hole communicated with an air inlet pipeline, and the counter bore is used for filling a catalyst sample.
The in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction is characterized in that: and the periphery of the heating block is wrapped with an insulating layer.
The in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction is characterized in that: the electrode plate is connected with a live wire of a high-voltage power supply, and the detachable electrode is connected with a zero line of the high-voltage power supply.
The in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction is characterized in that: the detachable electrode is a plate electrode or a needle electrode.
The in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction is characterized in that: and a layer of insulating material is attached to the inner wall of the closed space.
The in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction is characterized in that: an observation window is arranged on the front side of the upper part of the upper end cover.
The in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction is characterized in that: an observation window is arranged on the rear side of the upper part of the upper end cover.
The in-situ diffuse reflection infrared detection device capable of generating the plasma for catalytic reaction greatly reduces the operation difficulty of the experiment because the integrated means of ventilation, heating, cooling, illumination, high-voltage discharge and infrared reflection are combined in the closed space, and the whole process of sample reaction and detection is not contacted with the outside, so that the possibility of sample pollution is reduced to the maximum extent, the energy accompanied by a large amount of ultraviolet light can be utilized, and the in-situ diffuse reflection infrared detection device can be applied to detection under various experimental conditions, including but not limited to experimental scenes of different reaction temperatures, different gas atmospheres, different plasma environments and combination conditions thereof.
Drawings
The drawings described herein are for illustration purposes only and are not intended to limit the scope of the present disclosure in any way; the shapes, the proportional sizes, and the like of the respective members in the drawings are merely illustrative for assisting the understanding of the present invention, and do not specifically limit the shapes, the proportional sizes, and the like of the respective members; those skilled in the art, having the benefit of the teachings of this invention, may choose from the various possible shapes and proportional sizes to implement the invention as a matter of case.
FIG. 1 is a schematic front view of an embodiment of an in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction according to the present invention;
FIG. 2 is a schematic top view of an embodiment of an in-situ diffuse reflectance infrared detection device capable of generating plasma for catalytic reactions according to the present invention;
FIG. 3 is a schematic top view of an embodiment of an in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction according to the present invention;
FIG. 4 is an in-situ diffuse reflectance infrared spectrum of an experiment in which an embodiment of the in-situ diffuse reflectance infrared detection apparatus of the present invention capable of generating plasma for catalytic reaction is applied.
The various reference numbers in the figures are summarized: the device comprises an upper end cover 1, an infrared light incidence window 2, an infrared light exit window 3, a lower shell 4, an electrode plate 5, a sample cell 6, a heating block 7, a coolant inlet 8, a gas outlet 9, a gas inlet 10, a temperature controller 11, a high-voltage power supply 12, a coolant outlet 13, a coolant pipeline 14, an air outlet pipeline 15, an air inlet pipeline 16, a detachable electrode 17, a thermocouple 18, an observation window 19, a sealing threaded hole 20, a light guide fiber 21, a power supply 22, an insulating layer 23, a condenser lens 24 and a lamp box 25.
Detailed Description
The embodiments and examples of the present invention will be described in detail below with reference to the accompanying drawings, and the described embodiments are only for the purpose of illustrating the present invention and are not intended to limit the embodiments of the present invention.
As shown in fig. 1 and fig. 2 and 3, the in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction according to the present invention includes an upper end cover 1 and a lower shell 4, wherein the lower shell 4 is in a cube shape and has an open upper end, the upper end cover 1 is in a hemispherical shape and is integrally connected with a square flange, the upper end cover 1 is reversely buckled on the lower shell 4 to form a sealed space for catalytic reaction, four sealing threaded holes 20 are symmetrically arranged around the lower shell 4, and four sealing bolt through holes are correspondingly arranged around the upper end cover 1 for sealing bolts to pass through and be connected with the upper end of the lower shell 4.
Specifically, a sample cell 6 is installed at the center of the closed space, the sample cell 6 is made of polytetrafluoroethylene material and is cylindrical, one end of the sample cell is provided with a counter bore, the bottom of the counter bore is provided with a through hole, the counter bore is used for filling a catalyst (or photocatalyst) sample, the side surface and the bottom of the sample cell 6 are embedded in a heating block 7, the heating block 7 is electrically connected with a power supply 22 and used for heating the catalyst in the sample cell 6, and the heating block 7 can be installed on the outer wall of the right side of the lower shell 4; a thermocouple 18 is further embedded in the heating block 7, the thermocouple 18 is electrically connected with the temperature controller 11 through a lead and is used for feeding back the real-time temperature of the heating block 7 so as to control the reaction temperature of the catalyst, and the temperature controller 11 can be installed on the outer wall of the front side of the lower shell 4; preferably, the heating block 7 is surrounded by an insulating layer 23.
Specifically, a light-gathering lens 24 is arranged right above the sample cell 6, an optical fiber 21 is arranged right above the light-gathering lens 24, the other end of the optical fiber 21 passes through the top of the upper end cover 1 and is communicated with a light box 25 for providing a light source required by a photocatalytic reaction when needed, and the light box 25 can be mounted on the outer wall of the rear side of the lower shell 4.
Specifically, two sides of the sample cell 6 are symmetrically provided with an electrode plate 5 and a detachable electrode 17, the electrode plate 5 and the detachable electrode 17 are respectively and electrically connected with a high-voltage power supply 12 through leads, the electrode plate 5 is connected with a live wire of the high-voltage power supply 12, and the detachable electrode 17 is connected with a zero wire of the high-voltage power supply 12 and is used for generating low-temperature plasma at the sample cell 6; the detachable electrode 17 is a movable electrode, and can be made into a plate electrode or a needle electrode to provide different plasma environments; the high voltage power supply 12 may be mounted on the front side outer wall of the lower case 4; and a layer of insulating material is attached to the inner wall of the closed space so as to prevent the upper end cover 1 and the lower shell 4 from being struck through during high-voltage electricity discharge.
Specifically, an infrared light incident window 2 and an infrared light exit window 3 are symmetrically arranged on the upper end cover 1 above the sample cell 6 from left to right, and are used for irradiating infrared light onto a catalyst (or photocatalyst) sample in the sample cell 6 from the infrared light incident window 2, and feeding back reflected light of the infrared light to a spectrum detector from the infrared light exit window 3 for infrared detection; preferably, the front side or the rear side of the upper portion of the upper cap 1 is further opened with an observation window 19, so as to facilitate observation and operation of the whole process of experiment or detection, for example, the high voltage discharge condition when plasma is generated can be observed through the observation window 19.
Specifically, coolant pipes 14 wound around the closed space are transversely provided at intervals inside the side wall of the lower case 4, one end of the coolant pipe 14 communicates with the coolant inlet 8 on the outer wall of the lower case 4, the other end of the coolant pipe 14 communicates with the coolant outlet 13 on the outer wall of the lower case 4 for cooling and stabilizing the ambient temperature in the closed space, and both the coolant inlet 8 and the coolant outlet 13 may be installed on the left outer wall of the lower case 4.
Specifically, the bottom of the lower shell 4 is respectively provided with an air inlet pipeline 16 and an air outlet pipeline 15; one end of an air inlet pipeline 16 is communicated with the bottom of the closed space, the other end of the air inlet pipeline 16 is communicated with an air inlet 10 on the outer wall of the lower shell 4, one end of an air outlet pipeline 15 penetrates through a through hole in the bottom of a counter bore of the sample cell 6 through a heating block 7 to be communicated, the other end of the air outlet pipeline 15 is communicated with an air outlet 9 on the outer wall of the lower shell 4 to be used for introducing required working gas into the closed space, and the air inlet 10 and the air outlet 9 can be installed on the outer wall of the left side of the lower shell 4.
When the in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction works, working gas required by an experiment is continuously introduced into a closed space from a gas inlet 10 through a gas inlet pipeline 16, and after the whole closed space is filled with the working gas, mixed gas flows out from a gas outlet 9 through a gas outlet pipeline 15 so as to keep the closed space under normal pressure; the heating block 7, which is connected to the power supply 22, heats the catalyst (or photocatalyst) sample in the sample cell 6 to a desired temperature and maintains the desired temperature under the sensing of the thermocouple 18 and the feedback of the temperature controller 11; the peripheral cooling device is turned on, and the refrigerant circulates from the coolant inlet 8 to the coolant outlet 13 through the coolant pipe 14 and stabilizes the ambient temperature in the enclosed space; the light guide fiber 21 communicated with the lamp box 25 irradiates light rays required by the photocatalytic reaction to the photocatalyst sample through the condenser lens 24; irradiating infrared light onto a catalyst (or photocatalyst) sample in a sample cell 6 from an infrared light incidence window 2, and feeding back reflected light of the infrared light onto a spectrum detector from an infrared light exit window 3 for infrared detection; the electrode plate 5 communicated with the high-voltage power supply 12 and the detachable electrode 17 uninterruptedly generate low-temperature plasma, and continuously act on a catalyst (or photocatalyst) sample in the sample cell 6; the catalyst (or photocatalyst) acts on different functional groups or chemical bonds in the reaction to absorb infrared light with different frequencies, and the infrared light after diffuse reflection passes through the infrared light emitting window 3 and then is connected to a spectrum detector, so that the material characteristics of the catalyst (or photocatalyst) sample such as the functional groups, the chemical bonds and the like under the plasma condition can be detected.
As shown in FIG. 4, TiO was doped with Ca2Sample of photocatalyst, for example, Ca-doped TiO in sample cell 62The loading of the photocatalyst is 0.3 g; working gas adopts O3O in the intake duct 163The total flow of the gas flow is controlled at 30 mL/min; the light box 25 adopts ultraviolet light with the wavelength of 300nm, and the light source power of the light box 25 is 500W; the high-voltage power supply 12 adopts a high-voltage alternating current power supply as output, the discharge voltage is 10kV, and the discharge frequency is 6 kHz; FIG. 4 compares O3Compared with a simple photocatalytic reaction process, the method has the advantages that the influence curve of the discharge and non-discharge conditions in the atmosphere on the generation of adsorbed species on the surface of the Ca-doped TiO2 catalyst is shown, the abscissa is the wavelength Wavenumber (cm-1), and the ordinate is the Kubelka-Munk function, the experiment shows that the plasma plays an important role in activating the reaction, the deviation influences of the pressure and the temperature of the closed space and the temperature of the sample cell 6 are eliminated, and the influence curve is obviously shown in the figure 4It was seen that more intermediates were produced under the discharge conditions, of which 804cm was-1O of (C)2-Species and 1055cm-1The alkaline earth metal ozonide is an important intermediate substance for improving the activity of the catalyst, and plays a role in obviously promoting the catalysis.
Those not described in detail in this specification are well within the skill of those in the art.
It should be understood that the above-mentioned embodiments are merely preferred examples of the present invention, and not restrictive, but rather, all the changes, substitutions, alterations and modifications that come within the spirit and scope of the invention as described above may be made by those skilled in the art, and all the changes, substitutions, alterations and modifications that fall within the scope of the appended claims should be construed as being included in the present invention.
Claims (10)
1. An in-situ diffuse reflection infrared detection device capable of generating plasma for catalytic reaction comprises an upper end cover and a lower shell, wherein the upper end cover is reversely buckled on the lower shell to form a sealed space for catalytic reaction, and a sample cell for filling a catalyst sample is arranged at the center of the sealed space; the method is characterized in that:
the side surface and the bottom of the sample cell are embedded in a heating block, and the heating block is electrically connected with a power supply; a thermocouple is also embedded in the heating block and is electrically connected with the temperature controller through a lead;
a light-gathering lens is arranged right above the sample cell, an optical fiber is arranged right above the light-gathering lens, and the other end of the optical fiber penetrates through the top of the upper end cover to be communicated with the lamp box;
electrode plates and detachable electrodes are symmetrically arranged on two sides of the sample cell, and the electrode plates and the detachable electrodes are respectively and electrically connected with a high-voltage power supply through leads;
an infrared light incident window and an infrared light emergent window are symmetrically arranged on the upper end cover above the sample cell from left to right;
coolant pipelines wound in the closed space are transversely arranged at intervals in the side wall of the lower shell, and two ends of each coolant pipeline are respectively communicated with a coolant inlet and a coolant outlet on the outer wall of the lower shell;
the bottom of the lower shell is respectively provided with an air inlet pipeline and an air outlet pipeline; one end of the air inlet pipeline is communicated with the bottom of the closed space, and the other end of the air inlet pipeline is communicated with the air inlet on the outer wall of the lower shell; one end of the air outlet pipeline penetrates through the heating block to be communicated with the bottom of the sample cell, and the other end of the air outlet pipeline is communicated with the air outlet on the outer wall of the lower shell.
2. The in-situ diffuse reflectance infrared detection device capable of generating plasma for catalytic reaction according to claim 1, wherein: the lower shell is in a right cubic shape, the upper end of the lower shell is provided with an opening, and the upper end cover is hemispherical and is integrally connected with a square flange.
3. The in-situ diffuse-reflection infrared detection device capable of generating plasma for catalytic reaction of claim 1, wherein: four sealing threaded holes are symmetrically formed in the periphery of the lower shell, four sealing bolt through holes are correspondingly formed in the periphery of the upper end cover, and sealing bolts penetrate through the four sealing threaded holes to be connected with the upper end of the lower shell in a sealing mode.
4. The in-situ diffuse reflectance infrared detection device capable of generating plasma for catalytic reaction according to claim 1, wherein: the sample cell is made of polytetrafluoroethylene materials and is cylindrical, one end of the sample cell is provided with a counter bore, the bottom of the counter bore is provided with a through hole communicated with an air inlet pipeline, and the counter bore is used for filling a catalyst sample.
5. The in-situ diffuse reflectance infrared detection device capable of generating plasma for catalytic reaction according to claim 1, wherein: and the periphery of the heating block is wrapped with an insulating layer.
6. The in-situ diffuse reflectance infrared detection device capable of generating plasma for catalytic reaction according to claim 1, wherein: the electrode plate is connected with a live wire of a high-voltage power supply, and the detachable electrode is connected with a zero line of the high-voltage power supply.
7. The in-situ diffuse reflectance infrared detection device capable of generating plasma for catalytic reaction according to claim 1, wherein: the detachable electrode is a plate electrode or a needle electrode.
8. The in-situ diffuse reflectance infrared detection device capable of generating plasma for catalytic reaction according to claim 1, wherein: and a layer of insulating material is attached to the inner wall of the closed space.
9. The in-situ diffuse reflectance infrared detection device capable of generating plasma for catalytic reaction according to claim 1, wherein: an observation window is arranged on the front side of the upper part of the upper end cover.
10. The in-situ diffuse reflectance infrared detection device capable of generating plasma for catalytic reaction according to claim 1, wherein: an observation window is arranged on the rear side of the upper part of the upper end cover.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115791672A (en) * | 2022-09-27 | 2023-03-14 | 华中科技大学 | Reaction tank and in-situ diffuse reflection infrared detector |
| CN116593551A (en) * | 2023-07-17 | 2023-08-15 | 四川赛科检测技术有限公司 | Quasi-in-situ test method and system for electrocatalyst based on XPS |
-
2021
- 2021-06-29 CN CN202110728079.XA patent/CN114563371A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115791672A (en) * | 2022-09-27 | 2023-03-14 | 华中科技大学 | Reaction tank and in-situ diffuse reflection infrared detector |
| CN115791672B (en) * | 2022-09-27 | 2024-09-20 | 华中科技大学 | Reaction tank and in-situ diffuse reflection infrared detector |
| CN116593551A (en) * | 2023-07-17 | 2023-08-15 | 四川赛科检测技术有限公司 | Quasi-in-situ test method and system for electrocatalyst based on XPS |
| CN116593551B (en) * | 2023-07-17 | 2023-10-03 | 四川赛科检测技术有限公司 | Quasi-in-situ test method and system for electrocatalyst based on XPS |
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