CN111359604A - Medium-low temperature denitration sulfur-resistant water-resistant catalyst and preparation method thereof - Google Patents
Medium-low temperature denitration sulfur-resistant water-resistant catalyst and preparation method thereof Download PDFInfo
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- 239000003054 catalyst Substances 0.000 title claims abstract description 44
- 229910001868 water Inorganic materials 0.000 title claims abstract description 44
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 229910052717 sulfur Inorganic materials 0.000 title claims abstract description 38
- 239000011593 sulfur Substances 0.000 title claims abstract description 38
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000002360 preparation method Methods 0.000 title claims abstract description 9
- JKQOBWVOAYFWKG-UHFFFAOYSA-N molybdenum trioxide Inorganic materials O=[Mo](=O)=O JKQOBWVOAYFWKG-UHFFFAOYSA-N 0.000 claims abstract description 15
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 9
- 239000002356 single layer Substances 0.000 claims abstract description 6
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 238000011068 loading method Methods 0.000 claims abstract description 4
- 238000000034 method Methods 0.000 claims description 10
- 238000001035 drying Methods 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 6
- 238000007789 sealing Methods 0.000 claims description 6
- 239000007787 solid Substances 0.000 claims description 6
- 229910021642 ultra pure water Inorganic materials 0.000 claims description 6
- 239000012498 ultrapure water Substances 0.000 claims description 6
- 238000001816 cooling Methods 0.000 claims description 5
- 239000000843 powder Substances 0.000 claims description 4
- 238000000227 grinding Methods 0.000 claims description 3
- 238000003760 magnetic stirring Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 3
- 238000002390 rotary evaporation Methods 0.000 claims description 3
- 238000007598 dipping method Methods 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000018044 dehydration Effects 0.000 abstract 1
- 238000006297 dehydration reaction Methods 0.000 abstract 1
- MWUXSHHQAYIFBG-UHFFFAOYSA-N nitrogen oxide Inorganic materials O=[N] MWUXSHHQAYIFBG-UHFFFAOYSA-N 0.000 description 47
- 238000006243 chemical reaction Methods 0.000 description 18
- 239000003546 flue gas Substances 0.000 description 6
- 239000007789 gas Substances 0.000 description 5
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 4
- 238000010438 heat treatment Methods 0.000 description 4
- 239000010453 quartz Substances 0.000 description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N silicon dioxide Inorganic materials O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 4
- 239000000779 smoke Substances 0.000 description 4
- 238000007873 sieving Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 231100000331 toxic Toxicity 0.000 description 2
- 230000002588 toxic effect Effects 0.000 description 2
- 229910003208 (NH4)6Mo7O24·4H2O Inorganic materials 0.000 description 1
- CBENFWSGALASAD-UHFFFAOYSA-N Ozone Chemical compound [O-][O+]=O CBENFWSGALASAD-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 238000003916 acid precipitation Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003197 catalytic effect Effects 0.000 description 1
- 238000010531 catalytic reduction reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000006477 desulfuration reaction Methods 0.000 description 1
- 230000023556 desulfurization Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000007654 immersion Methods 0.000 description 1
- 238000011031 large-scale manufacturing process Methods 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/16—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of arsenic, antimony, bismuth, vanadium, niobium, tantalum, polonium, chromium, molybdenum, tungsten, manganese, technetium or rhenium
- B01J23/24—Chromium, molybdenum or tungsten
- B01J23/28—Molybdenum
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D53/00—Separation of gases or vapours; Recovering vapours of volatile solvents from gases; Chemical or biological purification of waste gases, e.g. engine exhaust gases, smoke, fumes, flue gases, aerosols
- B01D53/34—Chemical or biological purification of waste gases
- B01D53/74—General processes for purification of waste gases; Apparatus or devices specially adapted therefor
- B01D53/86—Catalytic processes
- B01D53/8621—Removing nitrogen compounds
- B01D53/8625—Nitrogen oxides
- B01D53/8628—Processes characterised by a specific catalyst
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J23/00—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00
- B01J23/002—Mixed oxides other than spinels, e.g. perovskite
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J35/00—Catalysts, in general, characterised by their form or physical properties
- B01J35/60—Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
- B01J35/61—Surface area
- B01J35/615—100-500 m2/g
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/02—Impregnation, coating or precipitation
- B01J37/0201—Impregnation
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
- B01J37/08—Heat treatment
- B01J37/082—Decomposition and pyrolysis
- B01J37/088—Decomposition of a metal salt
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2258/00—Sources of waste gases
- B01D2258/02—Other waste gases
- B01D2258/0283—Flue gases
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- Environmental & Geological Engineering (AREA)
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- Biomedical Technology (AREA)
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Abstract
The invention discloses a medium-low temperature denitration sulfur-resistant water-resistant catalyst and a preparation method thereof, the catalyst comprises a carrier and an active component loaded on the carrier, wherein the carrier is TiO2The active component is MoO3And MoO3Loading on high specific surface area TiO in a sub-monolayer coated state2Upper, MoO3The content of (B) is 12-23 wt%. The invention uses MoO3Loaded on TiO in a state of sub-monolayer covering2Medium and low temperature dehydration obtained by carrier preparationNitro, anti-sulfur and water-resistant catalyst using MoO3The sulfur resistance and the water resistance ensure that the catalyst maintains good stability in a durability test.
Description
Technical Field
The invention belongs to the technical field of denitration catalysts, and particularly relates to a medium-low temperature denitration sulfur-resistant water-resistant catalyst and a preparation method thereof.
Background
Nitrogen Oxides (NO) emitted by stationary and mobile sourcesx) Are typical pollutants and can cause photochemical smog, acid rain, ozone depletion and greenhouse effects. Starting from the viewpoints of stability, economy and the like, NH3Selective Catalytic Reduction (SCR) for NO removalxIs believed to currently control NOxAnd discharging the mature technology. Existing for NH3Commercial V of SCR2O5-WO3the/TiO 2 catalyst is generally used at temperatures above 320 ℃ and exhibits high NO conversion.
In recent years, low temperature SCR technology has received increasing attention because after passing through desulfurization and particulate control devices, the exhaust gas becomes cleaner and can reduce high concentrations of ash and SO in flue gas2The catalyst is deactivated, thereby extending the life of the catalyst. However, a certain amount of SO in the flue gas2And H2O causes the catalyst to deposit a large amount of NH4HSO4Adversely affecting the SCR reaction. Thus, study of NH4HSO4The decomposition mechanism and the reactive behavior, thereby avoiding the deposition of the catalyst, are the core of the industrialized low-temperature SCR system.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide a medium-low temperature denitration sulfur-resistant water-resistant catalyst.
The invention also aims to provide a preparation method of the medium-low temperature denitration sulfur-resistant water-resistant catalyst.
The technical scheme of the invention is as follows:
a medium-low temp denitration sulfur-resistant water-resistant catalyst is composed of carrier and negative electrodeAn active component carried on a carrier, wherein the carrier has a specific surface area of 200-500m2g-1Of TiO22The active component is MoO3And MoO3Loading on high specific surface area TiO in a sub-monolayer coated state2Upper, MoO3The content of (B) is 12-23 wt%.
In a preferred embodiment of the invention, said MoO3The content of (B) was 22.4 wt%.
The preparation method of the medium-low temperature denitration sulfur-resistant water-resistant catalyst adopts an immersion method to prepare (NH)4)6Mo7O24·4H2Dissolving O in ultrapure water to prepare a solution, and adding the TiO2And roasting to obtain the medium-low temperature denitration sulfur-resistant water-resistant catalyst.
In a preferred embodiment of the present invention, the method comprises the following steps:
(1) will be (NH)4)6Mo7O24·4H2Dissolving O in ultrapure water;
(2) adding the TiO into the material obtained in the step (1)2Uniformly dispersing the mixture by magnetic stirring;
(3) removing moisture from the material obtained in the step (2) through rotary evaporation, and drying at low temperature to obtain a solid;
(4) grinding the solid into fine powder, and sealing and roasting to obtain the medium-low temperature denitration sulfur-resistant water-resistant catalyst.
Further preferably, the low-temperature drying temperature is 60-120 ℃, and the time is 4-12 h. More preferably, the low-temperature drying temperature is 110 ℃ and the time is 12 h.
Further preferably, the sealing roasting specifically comprises: raising the temperature to 400-600 ℃ at the speed of 5-10 ℃/min, preserving the heat for 2-6h, and then naturally cooling to the room temperature. More preferably, the sealing roasting is specifically: raising the temperature to 400 ℃ at the speed of 5 ℃/min, preserving the temperature for 4h, and then naturally cooling to room temperature.
In a preferred embodiment of the present invention, the (NH) is4)6Mo7O24·4H2O to high ratioSurface area TiO2The mass ratio of (A) to (B) is 3.6: 10.
In a preferred embodiment of the present invention, the (NH) is4)6Mo7O24·4H2The mass ratio of O to ultrapure water is 3.6: 30.
The invention has the beneficial effects that:
1. the invention uses MoO3Loading on high specific surface area TiO in a state of sub-monolayer coverage2MoO is utilized as medium-low temperature denitration sulfur-resistant water-resistant catalyst prepared from carrier3The sulfur resistance and the water resistance ensure that the catalyst maintains good stability in a durability test.
2. The invention can not cause secondary pollution to the environment in the using process: compared with V2O5Commercial V with toxic component2O5-WO3/TiO2The denitration catalyst has better SCR catalytic activity and more excellent sulfur resistance and water resistance.
3. The invention adopts the dipping method for preparation, has simple operation process and high repeatability, only needs conventional equipment and instruments in the preparation process, and is suitable for industrialized large-scale production.
Drawings
Fig. 1 is one of graphs of experimental results of the medium and low temperature denitration sulfur-resistant water-resistant catalyst prepared in example 1 of the present invention.
Fig. 2 is a second graph of the experimental results of the medium and low temperature denitration sulfur-resistant water-resistant catalyst prepared in example 1 of the present invention.
Fig. 3 is a graph showing the results of the sulfur-resistant and water-resistant experiments of the commercial VWT catalyst of example 2 of the present invention.
Fig. 4 is a scanning electron microscope photograph of the medium and low temperature denitration sulfur-resistant water-resistant catalyst prepared in example 1 of the present invention.
Detailed Description
The technical solution of the present invention will be further illustrated and described below with reference to the accompanying drawings by means of specific embodiments.
Example 1
(1) 3.6g (NH4)6Mo7O24·4H2O dissolved in 30mL of superPure water;
(2) adding 10g of material obtained in the step (1) with the specific surface area of 237m2/gTiO2Uniformly dispersing the mixture by magnetic stirring for 30 min;
(3) removing water from the material obtained in the step (2) through rotary evaporation, and drying at a low temperature of 110 ℃ for 12 hours to obtain a solid;
(4) grinding the solid into fine powder, pouring the fine powder into a crucible, and putting the crucible into a muffle furnace for sealed roasting, wherein the sealed roasting specifically comprises the following steps: heating to 400 deg.C at a rate of 5 deg.C/min, maintaining for 4h, and naturally cooling to room temperature to obtain MoO shown in FIG. 43The medium-low temperature denitration sulfur-resistant water-resistant catalyst with the content of 22.4 wt%, wherein MoO3Loaded on TiO in a sub-monolayer coated state2Of (2) is provided.
Sieving the medium-low temperature denitration sulfur-resistant water-resistant catalyst to 40-60 meshes, and taking 1.0g for SCR reaction. The reaction simulated smoke conditions are 600ppm NO and 600ppm NH3，3vol％O2，200ppm SO2，10vol％H2O, balance gas N2, total flow rate of 600 mL/min. And (3) introducing the simulated flue gas into a quartz reactor filled with 1.0g of the medium-low temperature denitration sulfur-resistant water-resistant catalyst, heating the reactor to 230 ℃ by a program, keeping the temperature stable, recording the change of NO concentration at an outlet, and converting the NO concentration into the conversion rate of NO. The results obtained are shown in FIG. 1. As can be seen from FIG. 1, the medium and low temperature denitration sulfur-resistant water-resistant catalyst has good sulfur-resistant water-resistant performance, and the NO conversion rate is stabilized at about 27% at 230 ℃.
Sieving the medium-low temperature denitration sulfur-resistant water-resistant catalyst to 40-60 meshes, and taking 1.0g for SCR reaction. The reaction simulated smoke conditions are 600ppm NO and 600ppm NH3，3vol％O2，200ppm SO2，10vol％H2O, balance gas N2, total flow rate of 600 mL/min. And (3) introducing the simulated flue gas into a quartz reactor filled with 1.0g of the medium-low temperature denitration sulfur-resistant water-resistant catalyst, heating the reactor to 250 ℃ by a program, keeping the temperature stable, recording the change of NO concentration at an outlet, and converting the NO concentration into the conversion rate of NO. The results are shown in FIG. 2. As can be seen from FIG. 2, the medium-low temperature denitration sulfur-resistant water-resistant catalyst has good sulfur resistanceWater resistance, and the NO conversion rate is stabilized at about 50% at 250 ℃.
Sieving the medium-low temperature denitration sulfur-resistant water-resistant catalyst to 40-60 meshes, and taking 1.0g for SCR reaction. The reaction simulated smoke conditions are 600ppm NO and 600ppm NH3，3vol％O2，200ppm SO2，10vol％H2O, balance gas N2, total flow rate of 600 mL/min. And (3) introducing the simulated flue gas into a quartz reactor filled with 1.0g of the medium-low temperature denitration sulfur-resistant water-resistant catalyst, heating the reactor to 270 ℃ by a program, keeping the temperature stable, recording the change of NO concentration at an outlet, and converting the NO concentration into the conversion rate of NO. The results are shown in FIG. 2. As can be seen from FIG. 2, the medium and low temperature denitration sulfur-resistant water-resistant catalyst has good sulfur-resistant water-resistant performance, and the NO conversion rate is stabilized at about 97% at 270 ℃.
Comparative example 1
For comparison, a commercial VWT catalyst (V)2O5Commercial V with toxic component2O5-WO3/TiO2Denitration catalyst) is sieved to 40-60 meshes, and 0.5g is taken for SCR reaction. The reaction simulated smoke conditions are 600ppm NO and 600ppm NH3，3vol％O2，100ppm SO2，5.5vol％H2O, balance gas N2The total flow rate was 600 mL/min. The simulated flue gas was passed into a quartz reactor containing 0.5g of this commercial VWT, the reactor was programmed to 250 ℃ and held steady, the change in NO concentration at the outlet was recorded, and converted to NO conversion. The results are shown in FIG. 2. As can be seen from fig. 3, the sulfur resistance and water resistance of the commercial VWT catalyst were poor, and the NO conversion at 250 ℃ fluctuated around 15%.
The above description is only a preferred embodiment of the present invention, and therefore should not be taken as limiting the scope of the invention, which is defined by the appended claims.
Claims (10)
1. The medium-low temperature denitration sulfur-resistant water-resistant catalyst comprises a carrier and active components loaded on the carrier, and is characterized in that: the carrier has a specific surface area of 200-500m2g-1Of TiO22The active component is MoO3And MoO3Loading on high specific surface area TiO in a sub-monolayer coated state2Upper, MoO3The content of (B) is 12-23 wt%.
2. The medium and low temperature denitration sulfur-resistant water-resistant catalyst as claimed in claim 1, wherein: the MoO3The content of (B) was 22.4 wt%.
3. The preparation method of the medium and low temperature denitration sulfur-resistant water-resistant catalyst of claim 1 or 2, which is characterized in that: by dipping (NH)4)6Mo7O24·4H2Dissolving O in ultrapure water to prepare a solution, and adding the TiO2And roasting to obtain the medium-low temperature denitration sulfur-resistant water-resistant catalyst.
4. The method of claim 3, wherein: the method comprises the following steps:
(1) will be (NH)4)6Mo7O24·4H2Dissolving O in ultrapure water;
(2) adding the TiO into the material obtained in the step (1)2Uniformly dispersing the mixture by magnetic stirring;
(3) removing moisture from the material obtained in the step (2) through rotary evaporation, and drying at low temperature to obtain a solid;
(4) grinding the solid into fine powder, and sealing and roasting to obtain the medium-low temperature denitration sulfur-resistant water-resistant catalyst.
5. The method of claim 4, wherein: the low-temperature drying temperature is 60-120 ℃, and the time is 4-12 h.
6. The method of claim 5, wherein: the low-temperature drying temperature is 110 ℃, and the time is 12 h.
7. The method of claim 4, wherein: the sealing roasting specifically comprises the following steps: raising the temperature to 400-600 ℃ at the speed of 5-10 ℃/min, preserving the heat for 2-6h, and then naturally cooling to the room temperature.
8. The method of claim 7, wherein: the sealing roasting specifically comprises the following steps: raising the temperature to 400 ℃ at the speed of 5 ℃/min, preserving the temperature for 4h, and then naturally cooling to room temperature.
9. The production method according to any one of claims 3 to 8, characterized in that: said (NH)4)6Mo7O24·4H2O and TiO with high specific surface area2The mass ratio of (A) to (B) is 3.6: 10.
10. The production method according to any one of claims 3 to 8, characterized in that: said (NH)4)6Mo7O24·4H2The mass ratio of O to ultrapure water is 3.6: 30.
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04114747A (en) * | 1990-09-05 | 1992-04-15 | Catalysts & Chem Ind Co Ltd | Recovery of metal component from used catalyst |
| US5779912A (en) * | 1997-01-31 | 1998-07-14 | Lynntech, Inc. | Photocatalytic oxidation of organics using a porous titanium dioxide membrane and an efficient oxidant |
| CN103433040A (en) * | 2013-08-29 | 2013-12-11 | 天津大学 | Binary metal modified titanium dioxide catalyst, preparation method thereof and application of catalyst in removal of nitric oxide contained in tail gas of diesel engine |
| CN110075860A (en) * | 2019-05-22 | 2019-08-02 | 华侨大学 | A kind of preparation method of alkali resistant metal denitrating catalyst |
| CN110479245A (en) * | 2019-09-18 | 2019-11-22 | 南京大学 | A kind of molybdenum cerium support type catalyst for denitrating flue gas and its preparation method and application |
-
2020
- 2020-03-06 CN CN202010154932.7A patent/CN111359604A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04114747A (en) * | 1990-09-05 | 1992-04-15 | Catalysts & Chem Ind Co Ltd | Recovery of metal component from used catalyst |
| US5779912A (en) * | 1997-01-31 | 1998-07-14 | Lynntech, Inc. | Photocatalytic oxidation of organics using a porous titanium dioxide membrane and an efficient oxidant |
| CN103433040A (en) * | 2013-08-29 | 2013-12-11 | 天津大学 | Binary metal modified titanium dioxide catalyst, preparation method thereof and application of catalyst in removal of nitric oxide contained in tail gas of diesel engine |
| CN110075860A (en) * | 2019-05-22 | 2019-08-02 | 华侨大学 | A kind of preparation method of alkali resistant metal denitrating catalyst |
| CN110479245A (en) * | 2019-09-18 | 2019-11-22 | 南京大学 | A kind of molybdenum cerium support type catalyst for denitrating flue gas and its preparation method and application |
Non-Patent Citations (4)
| Title |
|---|
| I. NOVA ETAL.: "Characterization and reactivity of TiO2-supported MoO3De-NoxSCR catalysts", 《APPLIEDCATALYSISB:ENVIRONMENTAL》 * |
| JIE ZHANG ETAL.: "Alkali-Poisoning-Resistant Fe2O3/MoO3/TiO2 Catalyst for the", 《ENVIRON. SCI. TECHNOL.》 * |
| LORENZO DALLÏACQUA ET AL.: "Spectroscopic characterisation of MoO3 deNOx-SCR /TiO2catalysts : Redox and coordination properties", 《PHYS. CHEM. CHEM. PHYS.》 * |
| ZHIWEI HUANG ET AL.: "Exceptional Activity over the Submonolayer MoO3 Motif on TiO2 for Nitrogen Oxide Emission Abatement", 《ENVIRON. SCI. TECHNOL.》 * |
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Application publication date: 20200703 |