CN1947834A - Process for preparing catalyst contg. La(1-x)SrxMO3 used for removing volatile organic matter - Google Patents
Process for preparing catalyst contg. La(1-x)SrxMO3 used for removing volatile organic matter Download PDFInfo
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- CN1947834A CN1947834A CN 200610114429 CN200610114429A CN1947834A CN 1947834 A CN1947834 A CN 1947834A CN 200610114429 CN200610114429 CN 200610114429 CN 200610114429 A CN200610114429 A CN 200610114429A CN 1947834 A CN1947834 A CN 1947834A
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- 239000005416 organic matter Substances 0.000 title claims description 4
- 239000003054 catalyst Substances 0.000 title abstract description 26
- 238000004519 manufacturing process Methods 0.000 title 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 claims abstract description 42
- KRKNYBCHXYNGOX-UHFFFAOYSA-N citric acid Chemical compound OC(=O)CC(O)(C(O)=O)CC(O)=O KRKNYBCHXYNGOX-UHFFFAOYSA-N 0.000 claims abstract description 36
- 230000003197 catalytic effect Effects 0.000 claims abstract description 18
- 229910052748 manganese Inorganic materials 0.000 claims abstract description 11
- 239000011943 nanocatalyst Substances 0.000 claims abstract description 4
- 238000007254 oxidation reaction Methods 0.000 claims description 16
- 239000011572 manganese Substances 0.000 claims description 15
- 239000002105 nanoparticle Substances 0.000 claims description 13
- 238000001354 calcination Methods 0.000 claims description 12
- 230000003647 oxidation Effects 0.000 claims description 12
- 239000002131 composite material Substances 0.000 claims description 9
- 238000002360 preparation method Methods 0.000 claims description 9
- 229910021645 metal ion Inorganic materials 0.000 claims description 7
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 6
- 229910052746 lanthanum Inorganic materials 0.000 claims description 5
- 238000000227 grinding Methods 0.000 claims description 4
- 229910021529 ammonia Inorganic materials 0.000 claims description 3
- 238000002523 gelfiltration Methods 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims description 3
- 238000003756 stirring Methods 0.000 claims description 3
- 238000005406 washing Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims 4
- 229910002651 NO3 Inorganic materials 0.000 claims 4
- 229910052751 metal Inorganic materials 0.000 claims 4
- 239000002184 metal Substances 0.000 claims 4
- NHNBFGGVMKEFGY-UHFFFAOYSA-N nitrate group Chemical group [N+](=O)([O-])[O-] NHNBFGGVMKEFGY-UHFFFAOYSA-N 0.000 claims 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 claims 3
- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 claims 3
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 claims 1
- 150000001868 cobalt Chemical class 0.000 claims 1
- 150000002603 lanthanum Chemical class 0.000 claims 1
- 150000002696 manganese Chemical class 0.000 claims 1
- 159000000008 strontium salts Chemical class 0.000 claims 1
- 238000006243 chemical reaction Methods 0.000 abstract description 4
- 239000000126 substance Substances 0.000 abstract description 3
- 230000000536 complexating effect Effects 0.000 abstract 1
- 238000001027 hydrothermal synthesis Methods 0.000 abstract 1
- 230000001590 oxidative effect Effects 0.000 abstract 1
- 239000012855 volatile organic compound Substances 0.000 description 12
- 239000002245 particle Substances 0.000 description 8
- 241000186216 Corynebacterium Species 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 4
- 229910002138 La0.6Sr0.4CoO3 Inorganic materials 0.000 description 3
- 229910002148 La0.6Sr0.4MnO3 Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 238000006555 catalytic reaction Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 230000010718 Oxidation Activity Effects 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 231100000572 poisoning Toxicity 0.000 description 2
- 230000000607 poisoning effect Effects 0.000 description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 description 2
- 239000004810 polytetrafluoroethylene Substances 0.000 description 2
- 239000000843 powder Substances 0.000 description 2
- 229910000314 transition metal oxide Inorganic materials 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 229910018921 CoO 3 Inorganic materials 0.000 description 1
- 206010013786 Dry skin Diseases 0.000 description 1
- 240000004859 Gamochaeta purpurea Species 0.000 description 1
- PWHULOQIROXLJO-UHFFFAOYSA-N Manganese Chemical group [Mn] PWHULOQIROXLJO-UHFFFAOYSA-N 0.000 description 1
- 239000006004 Quartz sand Substances 0.000 description 1
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 210000001124 body fluid Anatomy 0.000 description 1
- 239000010839 body fluid Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000012159 carrier gas Substances 0.000 description 1
- 238000007084 catalytic combustion reaction Methods 0.000 description 1
- 231100000481 chemical toxicant Toxicity 0.000 description 1
- 238000004587 chromatography analysis Methods 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000004821 distillation Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 230000005714 functional activity Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052741 iridium Inorganic materials 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 229910052763 palladium Inorganic materials 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- -1 polytetrafluoroethylene Polymers 0.000 description 1
- 238000010298 pulverizing process Methods 0.000 description 1
- 239000012495 reaction gas Substances 0.000 description 1
- 229910052703 rhodium Inorganic materials 0.000 description 1
- 238000012216 screening Methods 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 239000003440 toxic substance Substances 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Abstract
A La1-xSrxMO3 nano-catalyst for eliminating volatile organic substance, especially the oxidizing reaction of toluene to obtain CO2 and H2O with excellent catalytic activity is prepared through citric acid complexing and hydrothermal synthesis. The catalyst La1-xSrxMO3, where M is Mn or Co and x=0-0.4, has single-phase pyramid perovskite structure and large specific surface area.
Description
Technical field
The present invention relates to a kind of La that is used to eliminate volatile organic matter
1-xSr
xMO
3The preparation method of nanocatalyst and to the catalytic performance of VOCs oxidation reaction relates in particular to and utilizes the synthetic coupling legal system of citric acid complex-hydro-thermal to be equipped with bigger serface perovskite composite oxide La
1-xSr
xMO
3(M=Mn, Co; X=0,0.4) nano particle and to the catalytic performance of toluene oxidation reaction belongs to catalytic field.
Background technology
The VOCs of industrial source discharging is the main atmosphere pollution of a class.Environmental Protection Agency has listed more than 300 kind of VOCs pollutant.As far back as nineteen ninety, U.S.'s " clean air act Amendment Act " mandatory requirement reduces in the toxic chemical of discharge capacity, and VOCs accounts for 70%.Although China has also issued comparatively strict VOCs discharge standard in 1997, its pollution that causes so far is not effectively controlled as yet.
Catalytic combustion is one of approach of at present the most effective elimination VOCs, and wherein catalyst is the core place of realizing this process.Up to now, VOCs catalytic oxidation catalyst system therefor mainly comprises transition metal oxide or composite oxides such as noble metals such as two big class: Pt, Pd, Rh, Ir, Ru, Au and Mn, V, Cr, Co, Fe, Ni, Cu.But noble metal catalyst exists such as costing an arm and a leg, shortage of resources, poisoning easily and at high temperature exist because of problems such as distillation is run off, easy-sinterings.Compare to noble metal catalyst, though transition metal oxide or composite oxides are difficult for poisoning, catalytic activity is still undesirable, and the initiation temperature during catalytic oxidation VOCs is everlasting more than 250 ℃.Perovskite composite oxide (ABO
3) catalyst is because its cost is low and catalytic oxidation performance and coming into one's own day by day preferably.Numerous results of study show that perofskite type oxide is catalytic oxidation hydrocarbon and oxygen-containing organic compound effectively, and the outstanding catalyst of catalytic performance is manganese system and co-containing mixed oxide La that the part lanthanum of A position is replaced by strontium
1-xSr
xMO
3 ± δ(M=Mn, Co), wherein the latter is better than the former, and when x=0.4 catalytic activity best (Seiyama T.Catalysis Review-Science and Engineering, 1992,34 (4): 281～300).The redox ability and the specific area of this good catalytic and its crystal structure defects, B position M ion be closely related (Tejuca G., Fierro J L G, ed.New York:Marcel Dekker, 1993).The catalytic oxidation of VOCs has caused vast catalysis worker's interest at present, and has done some useful work already.Yet the problem that still exists on most of catalyst is the accessory substance (Wang W, et al.Applied Catalysis B:Environmental, 2000,24:219～232) that the paired environment of VOCs partial oxidation has bigger harmfulness.Toluene is difficult to complete oxidation as representative compound among the VOCs.For complete oxidation, the oxidation activity of catalyst is directly proportional with its specific area.The little (＜5m of perofskite type oxide specific surface area of catalyst that conventional method is prepared
2/ g), be unfavorable for the raising of its catalytic oxidation activity.The key that changes this shortcoming is to find out appropriate preparation method, synthesizes the nano particle of high-specific surface area.The present invention has reported that the synthetic coupling legal system of employing citric acid complex-hydro-thermal is equipped with the perofskite type oxide La of the bigger serface doping A and the A that do not mix
1-xSr
xMO
3(M=Mn, Co; X=0,0.4) nano particle and to the catalytic activity of toluene oxidation reaction.The background technology of at present relevant this respect especially patent there is no report.
Summary of the invention
The object of the present invention is to provide a kind of bigger serface perovskite composite oxide La
1-xSr
xMO
3(M=Mn, Co; X=0,0.4) nanometer particle process method and in the toluene oxidation reaction, use as catalyst.
Bigger serface Ca-Ti ore type compound La provided by the invention
1-xSr
xMO
3(M=Mn, Co; X=0,0.4) nanometer particle process method, under stirring condition, it is La or La+Sr: M that ammonia spirit is added drop-wise to the mol ratio: in the clear solution of citric acid=be made at 1: 1: 1, control its pH value between 9～9.5, metal ion is precipitated fully.It is transferred in the sealing reactor then, put into again in the insulating box in 150 ℃ of insulation 20h, be cooled to room temperature afterwards, after the gel filtration that obtains, washing, drying, grinding, in air atmosphere, carry out temperature programming also successively at 400 ℃ of constant temperature calcination 2h and 650～700 ℃ of constant temperature calcination 2h with the speed of 0.5～1 ℃/min, the gained black powder is through grinding, compressing tablet, pulverizing and screening, and intercepting 60～80 order particles are standby.
Gained black powder product is characterized with technology such as D8 ADVANCE type X-ray diffractometer (XRD), JEOL JSM6500F type high resolution scanning electron microscope (HRSEM) and ASAP 2020 specific surface instrument.The result shows that products therefrom is the nano particle of single-phase rhombohedral Perovskite-type structure, and specific area is 20～33m
2/ g, pattern are corynebacterium uniformly, and particle diameter is 20～100nm, and length is 60～220nm.
Catalyst activity is determined under the normal pressure and carries out on quartzy fixed-bed micro-reactor (i.d.=8mm).Catalyst volume=0.1mL, catalyst granules/quartz sand=1/1 (volume ratio), reaction gas=1000ppm toluene+O
2+ N
2(toluene/oxygen mol ratio=1/400), air speed=20000h
-1Product is analyzed with island functional activities of the body fluid chromatography (GC-14C): Carboxen 1000 packed columns (TCD detector) separate permanent gases, and Chromosorb 101 posts (fid detector) separate VOCs.He and make carrier gas (flow velocity: 40mL/min).The Carbon balance of reaction system is 99.5%.The result shows that toluene is at prepared La
1-xSr
xMO
3(M=Mn, Co; X=0,0.4) oxidation product on the catalyst has only CO
2And H
2O there is no other secondary pollution accessory substance and forms.
Description of drawings
For further understanding the present invention, elaborate with embodiment below, and provide that accompanying drawing is described bigger serface perovskite composite oxide nano particle that the present invention obtains and to the catalytic activity of toluene complete oxidation, wherein:
Fig. 1 is the XRD spectra of catalyst.Curve (a) LaMnO wherein
3 Embodiment 1; Curve (b) La
0.6Sr
0.4MnO
3Embodiment 2; Curve (c) LaCoO
3Embodiment 3; Curve (d) La
0.6Sr
0.4CoO
3Embodiment 4.
Fig. 2 (a) and (b) are respectively LaMnO
3 Embodiment 1 catalyst, La
0.6Sr
0.4MnO
3The HRSEM photo of embodiment 2 catalyst.
Fig. 3 (a) and (b) are respectively LaCoO
3Embodiment 3 catalyst, La
0.6Sr
0.4CoO
3The HRSEM photo of embodiment 4 catalyst.
(experiment condition is Fig. 4: pressure=1atm, air speed=20000h with variation of temperature figure for the conversion ratio of toluene on catalyst
-1, toluene concentration=1000ppm, the mol ratio of toluene and oxygen=1/400).Wherein curve (a) and (b), (c), (d) are respectively toluene at LaMnO
3 Embodiment 1 catalyst, La
0.6Sr
0.4MnO
3Embodiment 2 catalyst, LaCoO
3Embodiment 3 catalyst, La
0.6Sr
0.4CoO
3Conversion ratio on embodiment 4 catalyst is with variation of temperature trend.
The specific embodiment
Concrete implementation step of the present invention is as follows:
Embodiment 1: under magnetic agitation (stir speed (S.S.) is 300～800 rev/mins) condition, ammonia spirit (28%) slowly is added drop-wise to La: Mn: the clear solution that citric acid=1: 1: 1 (mol ratio) is made into is (in the metal ion total concentration=0.56mol/L), control its pH value between 9～9.5, metal ion is precipitated fully.Then it is transferred to (80% volume loading) in the stainless steel cauldron that liner is a polytetrafluoroethylene (PTFE), put into again in the insulating box in 150 ℃ of insulation 20h, be cooled to room temperature with cold water afterwards, with (120 ℃ of the gel filtration, washing, the dryings that obtain, 5h), grinding evenly obtains the target product presoma, place Muffle furnace at air atmosphere with the heating rate of 0.5 ℃/min successively in 400 ℃ of constant temperature calcination 2h and 700 ℃ of constant temperature calcination 2h, promptly get the LaMnO of single-phase rhombohedral Perovskite-type structure
3Nano particle, specific area are 32.5m
2/ g, pattern are corynebacterium uniformly, and particle diameter is 20～30nm, and length is 60～80nm.
Embodiment 2: according to embodiment 1, with (La+Sr): Mn: citric acid=1: 1: 1 (mol ratio) substitutes La: Mn: citric acid=1: 1: 1 (mol ratio), be made into clear solution and keep metal ion total concentration=0.56mol/L, make the target product presoma.Place Muffle furnace to carry out temperature programming heat treatment and, obtain the La of single-phase rhombohedral Perovskite-type structure with the speed of 0.5 ℃/min this target product presoma successively in 400 ℃ of constant temperature calcination 2h and 650 ℃ of constant temperature calcination 2h in air atmosphere
0.6Sr
0.4MnO
3Nano particle, specific area are 31.2m
2/ g, pattern are uniform corynebacterium, and particle diameter is 20～30nm, and length is 60～80nm.
Embodiment 3: according to embodiment 1, with La: Co: citric acid=1: 1: 1 (mol ratio) substitutes La: Mn: citric acid=1: 1: 1 (mol ratio), and be made into clear solution and keep metal ion total concentration=0.56mol/L, make the target product presoma.Place Muffle furnace to carry out temperature programming heat treatment and, obtain the LaCoO of single-phase rhombohedral Perovskite-type structure with the speed of 1 ℃/min this target product presoma successively in 400 ℃ of constant temperature calcination 2h and 650 ℃ of constant temperature calcination 2h in air atmosphere
3Nano particle, specific area are 26.4m
2/ g, pattern are corynebacterium uniformly, and particle diameter is 20～30nm, and length is 60～80nm.
Embodiment 4: according to embodiment 1, with (La+Sr): Co: citric acid=1: 1: 1 (mol ratio) substitutes La: Mn: citric acid=1: 1: 1 (mol ratio), be made into clear solution and keep metal ion total concentration=0.56mol/L, make the target product presoma.Place Muffle furnace to carry out temperature programming heat treatment and, obtain the La of single-phase rhombohedral Perovskite-type structure with the speed of 1 ℃/min this target product presoma successively in 400 ℃ of constant temperature calcination 2h and 650 ℃ of constant temperature calcination 2h in air atmosphere
0.6Sr
0.4CoO
3Nano particle, specific area are 20.2m
2/ g, pattern are corynebacterium uniformly, and particle diameter is 60～100nm, and length is 80～220nm.
Claims (5)
1. La who is used to eliminate volatile organic matter
1-xSr
xMO
3The preparation method of nanocatalyst, M is Mn, Co, x is 0,0.4, it is characterized in that, under stirring condition, it is La or La+Sr: M that ammonia spirit is added drop-wise to the mol ratio: in the clear solution of citric acid=be made at 1: 1: 1, control its pH value between 9～9.5, metal ion is precipitated fully, it is transferred in the sealing reactor then, put into again in the insulating box in 150 ℃ of insulation 20h, be cooled to room temperature afterwards, with the gel filtration that obtains, washing, dry, after the grinding, in air atmosphere, carry out temperature programming and, obtain bigger serface perofskite type oxide La successively at 400 ℃ of constant temperature calcination 2h and 650～700 ℃ of constant temperature calcination 2h with the speed of 0.5～1 ℃/min
1-xSr
xMO
3Nano particle.
2. preparation method according to claim 1 is characterized in that, described soluble metal lanthanum salt is nitrate, acetate or hydrochloride; Described soluble metal strontium salt is nitrate, acetate; Described soluble metal cobalt salt is nitrate, acetate; Described soluble metal manganese salt is nitrate, acetate.
3. preparation method according to claim 1 is characterized in that, described method can be applied to other perovskite composite oxides La
1-xA
xMO
3The preparation of nano particle, wherein A is Ca, Ba, and M is Mn, Co, and x is 0,0.4.
4. the perovskite composite oxide nano particle that preparation method according to claim 1 makes can be applied to toluene catalytic oxidation.
5. the perovskite composite oxide nano particle that preparation method according to claim 1 makes can be applied to ethyl acetate, formaldehyde through catalytic oxidation.
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|---|---|---|---|
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|---|---|---|---|
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845306A (en) * | 2010-03-31 | 2010-09-29 | 天津大学 | Preparation method and application of Lal-xSrxCoO3 perovskite catalyst |
| CN102500232A (en) * | 2011-10-18 | 2012-06-20 | 北京工业大学 | Method for oxidizing toluene by utilizing three-dimensional ordered macroporous La0.6Sr0.4FeO3 catalyst |
| CN102794169A (en) * | 2012-08-30 | 2012-11-28 | 合肥工业大学 | Attapulgite-perovskite composite material, preparation method and application thereof |
| CN106902814A (en) * | 2017-04-06 | 2017-06-30 | 南京工业大学 | One kind catalysis burning order mesoporous integral catalyzer of rare earth base and preparation method thereof |
| CN108311147A (en) * | 2018-01-24 | 2018-07-24 | 北京科技大学 | Preparation method for the perovskite supported noble metal catalyst for purifying benzene |
| CN110785229A (en) * | 2018-05-11 | 2020-02-11 | 株式会社村田制作所 | Catalyst for organic matter decomposition, aggregate for organic matter decomposition, and organic matter decomposition apparatus |
| CN111185182A (en) * | 2020-03-06 | 2020-05-22 | 清华大学 | Perovskite catalyst and preparation method and application thereof |
| CN113731401A (en) * | 2021-09-07 | 2021-12-03 | 清华大学 | La1-xMn1+xO3Preparation method of (1) |
| WO2022089669A1 (en) * | 2020-10-26 | 2022-05-05 | 苏州大学 | Composite material of strontium-doped ordered mesoporous lanthanum manganite loaded with precious metal palladium, and preparation method therefor and use thereof in catalytic oxidation of toluene |
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|---|---|---|---|---|
| CN1170763C (en) * | 2001-03-15 | 2004-10-13 | 内蒙古工业大学 | Perovskite type La1-x-yBaxDyyMnO3 compound oxide superfine particle and its prepn. |
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101845306A (en) * | 2010-03-31 | 2010-09-29 | 天津大学 | Preparation method and application of Lal-xSrxCoO3 perovskite catalyst |
| CN101845306B (en) * | 2010-03-31 | 2012-09-05 | 天津大学 | Preparation method and application of Lal-xSrxCoO3 perovskite catalyst |
| CN102500232A (en) * | 2011-10-18 | 2012-06-20 | 北京工业大学 | Method for oxidizing toluene by utilizing three-dimensional ordered macroporous La0.6Sr0.4FeO3 catalyst |
| CN102500232B (en) * | 2011-10-18 | 2013-11-20 | 北京工业大学 | Method for oxidizing toluene by utilizing three-dimensional ordered macroporous La0.6Sr0.4FeO3 catalyst |
| CN102794169A (en) * | 2012-08-30 | 2012-11-28 | 合肥工业大学 | Attapulgite-perovskite composite material, preparation method and application thereof |
| CN102794169B (en) * | 2012-08-30 | 2014-04-30 | 合肥工业大学 | Attapulgite-perovskite composite material, preparation method and application thereof |
| CN106902814A (en) * | 2017-04-06 | 2017-06-30 | 南京工业大学 | One kind catalysis burning order mesoporous integral catalyzer of rare earth base and preparation method thereof |
| CN108311147A (en) * | 2018-01-24 | 2018-07-24 | 北京科技大学 | Preparation method for the perovskite supported noble metal catalyst for purifying benzene |
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| CN110785229B (en) * | 2018-05-11 | 2022-10-18 | 株式会社村田制作所 | Catalyst for organic matter decomposition, aggregate for organic matter decomposition, and organic matter decomposition apparatus |
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