CN109529821A - A kind of palladium-based catalyst for thermocatalytic Degradation Formaldehyde - Google Patents
A kind of palladium-based catalyst for thermocatalytic Degradation Formaldehyde Download PDFInfo
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- WSFSSNUMVMOOMR-UHFFFAOYSA-N Formaldehyde Chemical compound O=C WSFSSNUMVMOOMR-UHFFFAOYSA-N 0.000 title claims abstract description 75
- KDLHZDBZIXYQEI-UHFFFAOYSA-N Palladium Chemical compound [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 title claims abstract description 71
- 239000003054 catalyst Substances 0.000 title claims abstract description 42
- 230000015556 catabolic process Effects 0.000 title claims abstract description 20
- 238000006731 degradation reaction Methods 0.000 title claims abstract description 20
- 229910052763 palladium Inorganic materials 0.000 title claims abstract description 19
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 27
- 238000002360 preparation method Methods 0.000 claims abstract description 18
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 14
- 230000003197 catalytic effect Effects 0.000 claims abstract description 12
- GPNDARIEYHPYAY-UHFFFAOYSA-N palladium(ii) nitrate Chemical compound [Pd+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O GPNDARIEYHPYAY-UHFFFAOYSA-N 0.000 claims abstract description 10
- 238000003756 stirring Methods 0.000 claims description 24
- 238000006243 chemical reaction Methods 0.000 claims description 23
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 22
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 14
- 239000001257 hydrogen Substances 0.000 claims description 14
- 229910052739 hydrogen Inorganic materials 0.000 claims description 14
- 239000007787 solid Substances 0.000 claims description 14
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 claims description 12
- 239000012279 sodium borohydride Substances 0.000 claims description 12
- 229910000033 sodium borohydride Inorganic materials 0.000 claims description 12
- 238000006722 reduction reaction Methods 0.000 claims description 10
- 238000000034 method Methods 0.000 claims description 9
- 238000005406 washing Methods 0.000 claims description 9
- 238000007605 air drying Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 7
- WSFSSNUMVMOOMR-NJFSPNSNSA-N methanone Chemical compound O=[14CH2] WSFSSNUMVMOOMR-NJFSPNSNSA-N 0.000 claims description 5
- 239000008367 deionised water Substances 0.000 claims description 3
- 229910021641 deionized water Inorganic materials 0.000 claims description 3
- 239000003795 chemical substances by application Substances 0.000 claims description 2
- 238000001035 drying Methods 0.000 claims description 2
- 238000002242 deionisation method Methods 0.000 claims 1
- 238000007254 oxidation reaction Methods 0.000 abstract description 4
- 230000003647 oxidation Effects 0.000 abstract description 3
- 239000000203 mixture Substances 0.000 abstract description 2
- 238000006555 catalytic reaction Methods 0.000 description 6
- 238000005119 centrifugation Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 238000000975 co-precipitation Methods 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 229910000510 noble metal Inorganic materials 0.000 description 3
- 238000011160 research Methods 0.000 description 3
- 229910002651 NO3 Inorganic materials 0.000 description 2
- 239000006185 dispersion Substances 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000003837 high-temperature calcination Methods 0.000 description 2
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- VWDWKYIASSYTQR-UHFFFAOYSA-N sodium nitrate Inorganic materials [Na+].[O-][N+]([O-])=O VWDWKYIASSYTQR-UHFFFAOYSA-N 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- GRYLNZFGIOXLOG-UHFFFAOYSA-N Nitric acid Chemical compound O[N+]([O-])=O GRYLNZFGIOXLOG-UHFFFAOYSA-N 0.000 description 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000012752 auxiliary agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000593 degrading effect Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000003344 environmental pollutant Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 238000001802 infusion Methods 0.000 description 1
- 238000013507 mapping Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910017604 nitric acid Inorganic materials 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 239000005416 organic matter Substances 0.000 description 1
- 231100000719 pollutant Toxicity 0.000 description 1
- 239000010970 precious metal Substances 0.000 description 1
- 238000001556 precipitation Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
Classifications
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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
- B01J23/38—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals
- B01J23/40—Catalysts comprising metals or metal oxides or hydroxides, not provided for in group B01J21/00 of noble metals of the platinum group metals
- B01J23/44—Palladium
-
- 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
- B01D53/8668—Removing organic compounds not provided for in B01D53/8603 - B01D53/8665
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Environmental & Geological Engineering (AREA)
- Materials Engineering (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- Analytical Chemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Oil, Petroleum & Natural Gas (AREA)
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Abstract
The invention discloses a kind of palladium-based catalysts for thermocatalytic Degradation Formaldehyde.The Pd/TiO2Catalyst is in terms of 100% by the weight of catalyst, and the mass fraction of Pd is 0.1% ~ 0.4%, the preparation method is as follows: 1) by TiO2Carrier carries out reduction treatment；2) appropriate TiO will then be added in palladium nitrate solution2；3) solution is adjusted into pH and restored；4) gained mixture is dried to obtain required Pd/TiO2Oxidation of formaldehyde catalyst.Preparation method of the invention is simple, Pd/TiO obtained2Catalyst is anatase (ATiO2) phase structure, formed Pd/TiO2Show excellent oxidation of formaldehyde catalytic performance.
Description
Technical field
The palladium-based catalyst and preparation method thereof that the present invention relates to a kind of for thermocatalytic Degradation Formaldehyde, belongs to thermocatalytic material
Material and environmental protection technical field.
Background technique
Formaldehyde is the maximum a kind of gas of harm to the human body in indoor environment, design and prepare the catalyst of efficient stable with
Realize that catalysis oxidation formaldehyde is always important one of the research contents in environmental catalysis field under temperate condition.But currently, heat is urged
To change in catalyst used in reacting, nonmetallic loaded catalyst catalytic effect is very poor, though and noble metal carrier catalyst
The problems such as right effect is preferable, higher but there are noble metal dosages, and noble metal dispersion is bad, and stability is poor.
TiO2As thermocatalytic carrier, extensive research has been obtained.It degrades, reports more for formaldehyde thermocatalytic
For Pt supported titanium2Catalyst, better catalytic activity, and Pd/TiO2It reports less.Huang et al. (Chem.Eng.J.,
Pd/TiO 2013,230,73-79.) is prepared for by infusion process and deposition-precipitation method2Catalyst, report are pointed out, heavy by depositing
Pd is successfully supported on TiO by shallow lake method2On, due to its can efficient chemisorption oxygen, and surface can be good at utilizing
Hydroxyl makes it have the activity of good catalysis oxidation formaldehyde.Zhang et al. (Environ.Sci.Technol., 2014,48,
5816-5822) use NaNO3With Pd (NO3)2Co-precipitation is supported on TiO2On, report display is by the co-precipitation of Na so that Na-Pd/
TiO2The efficiency of catalyst (30 DEG C) catalytic degradation formaldehyde at normal temperature is higher than Pd/TiO2Catalyst.Li et al. people
(Catal.Today, 2017,281,412-417) uses NaNO3With Pd (NO3)2Co-precipitation is supported on TiO2On, and investigate different Na
Influence of the additional amount to catalytic activity, report point out the high activity of catalyst mainly since there are surface hydroxyls abundant for catalyst
Base, so as to efficient degradation formaldehyde gas.
But Pd/TiO made above2There are certain limitations, and it is 1w.t.%'s that the amount such as Pd used is larger
Pd；In addition, being required to high-temperature calcination in preparation process.
Although having the performance of preferably catalysis explanation formaldehyde by Pd/TiO2 catalyst prepared by the above method, but still
Some problems are so faced, Pd content as used is higher, also needs to add other auxiliary agents, needs high-temperature calcination in preparation process
Deng these make the manufacturing cost of catalyst higher, this is limited in practical applications.
Summary of the invention
For the research field of catalytic degradation formaldehyde mentioned above, it is based particularly on Pd/TiO2This expensive gold of support type
The current problem encountered of metal catalyst, the present invention provides a kind of palladium-based catalysts for thermocatalytic Degradation Formaldehyde.
To achieve the goals above, the present invention adopts the following technical scheme:
A kind of palladium-based catalyst for thermocatalytic Degradation Formaldehyde, by TiO2It is formed with Pd, forms Pd/TiO2Catalyst, with
The weight of catalyst is 100% meter, and the mass fraction of Pd is 0.1-0.4%.
The preparation method of the above-mentioned palladium-based catalyst for thermocatalytic Degradation Formaldehyde, comprising the following steps:
(1) TiO is taken2It is placed in fixed bed reduction reaction pipe；
(2) room temperature rises to different temperatures under the conditions of 10 DEG C/min of heating rate, and carries out hydrogen also at different temperatures
Original continues thereafter with logical hydrogen cooled to room temperature；
(3) it draws palladium nitrate solution to be added in three-necked flask, adds pure water, and continue to stir；
(4) under stirring, the anatase after reduction is added in three-necked flask solution, is stirred to react；
(5) it is 10 that NaOH solution to pH value of solution, which is then added dropwise,；
(6) NaBH is weighed4Solid is added pure water, is configured to NaBH4Solution is added dropwise into previous solu dropwise, continues to stir
Mix lower reaction；
(7) after completing reaction, solution is centrifuged, deionized water water washing, last forced air drying.
In above-mentioned preparation method: different temperatures range described in step (1) is 300-500 DEG C；Nitric acid in step (3)
Palladium solution concentration is 10mg/ml；NaOH concentration is 1mol/L, NaBH in step (6) in step (5)4Amount be molar ratio NaBH4:
Pd=10；Parameter of noncentricity are as follows: 8000 turns/min, time 5min；Wash conditions are as follows: deionized water is washed 3-5 times；Drying temperature is
105 DEG C, time 6-10h.
Utilize the method for above-mentioned palladium-based catalyst catalytic degradation formaldehyde, catalytic condition are as follows: concentration of formaldehyde 50ppm, it is empty
Speed is 30000h-1, 30 DEG C of reaction temperature.
Pd/TiO2 catalyst provided by the present invention is applied to room temperature thermocatalytic field.The catalyst is to small point of monomer
Sub- organic matter all has certain catalysis efficiency, common are machine pollutant in the air that can be used for degrading.
Compared with prior art, the invention has the following beneficial effects:
(1) the minimum reachable 0.1w.t.% of the load capacity of Pd, substantially reduces Pd load capacity；
(2) TiO2 obtains surface Lacking oxygen abundant by pre-reduction treatment, so that the ability of its adsorption of oxygen is improved, and
And Lacking oxygen is conducive to the dispersion of precious metals pd.
(3) cost is relatively low for catalyst preparation, and preparation condition is mild, easy to operate, convenient for amplification production in the industry.
Detailed description of the invention
Fig. 1 is 0.2wt.%Pd/TiO prepared by embodiment 12TEM figure and element mapping figure.
Specific embodiment
In order to better illustrate the present invention, it is easy to understand technical solution of the present invention, of the invention is typical but non-limiting
Embodiment is as follows:
Embodiment 1:
A kind of palladium-based catalyst preparation method for thermocatalytic Degradation Formaldehyde: (1) 0.5gTiO is taken2It is placed in fixed bed also
Former reaction tube；(2) room temperature rises to 300 DEG C under the conditions of 10 DEG C/min of heating rate, and carries out hydrogen reducing at different temperatures
3h continues thereafter with logical hydrogen cooled to room temperature；(3) it draws 10mg/ml palladium nitrate solution 0.4ml and is added to three-necked flask
In, pure water is added, and continue to stir；(4) under stirring, the anatase (TiO after reduction is added in three-necked flask solution2) solid
Body is stirred to react 1h；(5) it is 10 that 1mol/LNaOH solution to pH value of solution, which is then added dropwise,；(6) 0.0071g NaBH is weighed4
Solid is added 10ml pure water, is configured to NaBH4Solution is added dropwise into previous solu dropwise, continues to stir lower reaction 2h；(7) complete
After reaction, 8000 turns/min of solution is centrifuged 5min, and is washed with deionized, repeated centrifugation and water-washing process 3 times, finally
Forced air drying.
Embodiment 2:
A kind of palladium-based catalyst preparation method for thermocatalytic Degradation Formaldehyde: (1) 0.5gTiO is taken2It is placed in fixed bed also
Former reaction tube；(2) room temperature rises to 400 DEG C under the conditions of 10 DEG C/min of heating rate, and carries out hydrogen reducing at different temperatures
3h continues thereafter with logical hydrogen cooled to room temperature；(3) it draws 10mg/ml palladium nitrate solution 0.4ml and is added to three-necked flask
In, pure water is added, and continue to stir；(4) under stirring, the anatase (TiO after reduction is added in three-necked flask solution2) solid
Body is stirred to react 1h；(5) it is 10 that 1mol/LNaOH solution to pH value of solution, which is then added dropwise,；(6) 0.0071g NaBH is weighed4
Solid is added 10ml pure water, is configured to NaBH4Solution is added dropwise into previous solu dropwise, continues to stir lower reaction 2h；(7) complete
After reaction, 8000 turns/min of solution is centrifuged 5min, and is washed with deionized, repeated centrifugation and water-washing process 3 times, finally
Forced air drying.
Embodiment 3:
A kind of palladium-based catalyst preparation method for thermocatalytic Degradation Formaldehyde: (1) 0.5gTiO is taken2It is placed in fixed bed also
Former reaction tube；(2) room temperature rises to 500 DEG C under the conditions of 10 DEG C/min of heating rate, and carries out hydrogen reducing at different temperatures
3h continues thereafter with logical hydrogen cooled to room temperature；(3) it draws 10mg/ml palladium nitrate solution 0.2ml and is added to three-necked flask
In, pure water is added, and continue to stir；(4) under stirring, the anatase (TiO after reduction is added in three-necked flask solution2) solid
Body is stirred to react 1h；(5) it is 10 that 1mol/LNaOH solution to pH value of solution, which is then added dropwise,；(6) 0.0071g NaBH is weighed4
Solid is added 10ml pure water, is configured to NaBH4Solution is added dropwise into previous solu dropwise, continues to stir lower reaction 2h；(7) complete
After reaction, 8000 turns/min of solution is centrifuged 5min, and is washed with deionized, repeated centrifugation and water-washing process 3 times, finally
Forced air drying.
Embodiment 4:
A kind of palladium-based catalyst preparation method for thermocatalytic Degradation Formaldehyde: (1) 0.5gTiO is taken2It is placed in fixed bed also
Former reaction tube；(2) room temperature rises to 300 DEG C under the conditions of 10 DEG C/min of heating rate, and carries out hydrogen reducing at different temperatures
3h continues thereafter with logical hydrogen cooled to room temperature；(3) it draws 10mg/ml palladium nitrate solution 0.2ml and is added to three-necked flask
In, pure water is added, and continue to stir；(4) under stirring, the anatase (TiO after reduction is added in three-necked flask solution2) solid
Body is stirred to react 1h；(5) it is 10 that 1mol/LNaOH solution to pH value of solution, which is then added dropwise,；(6) 0.0035g NaBH is weighed4
Solid is added 10ml pure water, is configured to NaBH4Solution is added dropwise into previous solu dropwise, continues to stir lower reaction 2h；(7) complete
After reaction, 8000 turns/min of solution is centrifuged 5min, and is washed with deionized, repeated centrifugation and water-washing process 3 times, finally
Forced air drying.
Embodiment 5:
A kind of palladium-based catalyst preparation method for thermocatalytic Degradation Formaldehyde: (1) 0.5gTiO is taken2It is placed in fixed bed also
Former reaction tube；(2) room temperature rises to 300 DEG C under the conditions of 10 DEG C/min of heating rate, and carries out hydrogen reducing at different temperatures
3h continues thereafter with logical hydrogen cooled to room temperature；(3) it draws 10mg/ml palladium nitrate solution 0.1ml and is added to three-necked flask
In, pure water is added, and continue to stir；(4) under stirring, the anatase (TiO after reduction is added in three-necked flask solution2) solid
Body is stirred to react 1h；(5) it is 10 that 1mol/LNaOH solution to pH value of solution, which is then added dropwise,；(6) 0.0018g NaBH is weighed4
Solid is added 10ml pure water, is configured to NaBH4Solution is added dropwise into previous solu dropwise, continues to stir lower reaction 2h；(7) complete
After reaction, 8000 turns/min of solution is centrifuged 5min, and is washed with deionized, repeated centrifugation and water-washing process 3 times, finally
Forced air drying.
Comparative example 1:
A kind of palladium-based catalyst preparation method (1) absorption 10mg/ml palladium nitrate solution for thermocatalytic Degradation Formaldehyde
0.2ml is added in three-necked flask, adds pure water, and continues to stir；(2) it under stirring, is added in three-necked flask solution sharp
Titanium ore (TiO2) solid, it is stirred to react 1h；(3) it is 10 that 1mol/LNaOH solution to pH value of solution, which is then added dropwise,；(4) it weighs
0.0071g NaBH4Solid is added 10ml pure water, is configured to NaBH4Solution is added dropwise into previous solu dropwise, continues under stirring
React 2h；(5) after completing reaction, 8000 turns/min of solution is centrifuged 5min, and be washed with deionized, repeated centrifugation and washing
Process 3 times, last forced air drying.
Table 1, Pd/TiO2The Activity evaluation of catalyst
Subordinate list explanation:
TiO is all made of in embodiment2The method of carrier prereduction prepares Pd/TiO2, and comparative example does not pass through TiO2Carrier
Prereduction.From table 1 it follows that the catalyst is same although the Pd content of comparative example is more than the Pd content of embodiment
The conversion ratio of formaldehyde is catalyzed Deng under the conditions of without embodiment height；This explanation, using TiO2The method preparation of carrier prereduction
Pd/TiO2The catalytic activity of energy fortifying catalytic agent.In addition, bullion content still can obtain good catalysis at 0.2wt.%
Activity.Therefore, the present invention is the thermocatalyst of a kind of good activity.
Claims (4)
1. a kind of palladium-based catalyst for thermocatalytic Degradation Formaldehyde, it is characterized in that by TiO2It is formed with Pd, forms Pd/TiO2It urges
Agent is in terms of 100% by the weight of catalyst, and the mass fraction of Pd is 0.1-0.4%.
2. described in claim 1 for thermocatalytic Degradation Formaldehyde palladium-based catalyst preparation method, it is characterised in that including with
Lower step:
(1) TiO is taken2It is placed in fixed bed reduction reaction pipe;
(2) room temperature rises to different temperatures under the conditions of 10 DEG C/min of heating rate, and carries out hydrogen reducing at different temperatures,
Continue thereafter with logical hydrogen cooled to room temperature；
(3) it draws palladium nitrate solution to be added in three-necked flask, adds pure water, and continue to stir；
(4) under stirring, the anatase after reduction is added in three-necked flask solution, is stirred to react；
(5) it is 10 that NaOH solution to pH value of solution, which is then added dropwise,；
(6) NaBH is weighed4Solid is added pure water, is configured to NaBH4Solution is added dropwise into previous solu dropwise, continues under stirring
Reaction；
(7) after completing reaction, solution is centrifuged, deionized water water washing, last forced air drying.
3. preparation method according to claim 2, it is characterised in that: different temperatures range described in step (2) is 300-
500℃；Palladium nitrate solution concentration is 10 mg/ml in step (3)；NaOH concentration is 1 mol/L in step (5)；In step (6)
NaBH4Amount be molar ratio NaBH4:Pd=10；Parameter of noncentricity are as follows: 8000 turns/min, 5 min of time；Wash conditions are as follows: deionization
Water washing 3-5 times；Drying temperature is 105 DEG C, and the time is 6-10 h.
4. utilizing the method for palladium-based catalyst catalytic degradation formaldehyde described in claim 1, it is characterised in that catalytic condition are as follows: formaldehyde
Concentration is 50 ppm, air speed 30000h-1, 30 DEG C of reaction temperature.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111517278A (en) * | 2020-03-24 | 2020-08-11 | 中南大学 | Ti3C2TxApplication of MXenes non-noble metal heterogeneous catalyst in formic acid dehydrogenation |
| CN113941327A (en) * | 2021-11-23 | 2022-01-18 | 江苏科技大学 | Palladium-based catalyst and preparation method and application thereof |
| CN114797845A (en) * | 2022-05-18 | 2022-07-29 | 北京化工大学 | Pd catalyst for carbon-carbon triple bond selective hydrogenation reaction and preparation method thereof |
| CN115212872A (en) * | 2022-08-03 | 2022-10-21 | 中山大学 | Monoatomic alloy catalyst for directly synthesizing high-concentration hydrogen peroxide from hydrogen and oxygen and preparation method thereof |
| CN115212874A (en) * | 2022-08-16 | 2022-10-21 | 深圳市康弘智能健康科技股份有限公司 | Preparation method of improved photocatalytic material for catalytic purification of formaldehyde by visible light |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111517278A (en) * | 2020-03-24 | 2020-08-11 | 中南大学 | Ti3C2TxApplication of MXenes non-noble metal heterogeneous catalyst in formic acid dehydrogenation |
| CN113941327A (en) * | 2021-11-23 | 2022-01-18 | 江苏科技大学 | Palladium-based catalyst and preparation method and application thereof |
| CN113941327B (en) * | 2021-11-23 | 2024-03-19 | 江苏科技大学 | Palladium-based catalyst and preparation method and application thereof |
| CN114797845A (en) * | 2022-05-18 | 2022-07-29 | 北京化工大学 | Pd catalyst for carbon-carbon triple bond selective hydrogenation reaction and preparation method thereof |
| CN115212872A (en) * | 2022-08-03 | 2022-10-21 | 中山大学 | Monoatomic alloy catalyst for directly synthesizing high-concentration hydrogen peroxide from hydrogen and oxygen and preparation method thereof |
| CN115212872B (en) * | 2022-08-03 | 2023-08-15 | 中山大学 | Monoatomic alloy catalyst for directly synthesizing high-concentration hydrogen peroxide by using hydrogen and oxygen and preparation method thereof |
| CN115212874A (en) * | 2022-08-16 | 2022-10-21 | 深圳市康弘智能健康科技股份有限公司 | Preparation method of improved photocatalytic material for catalytic purification of formaldehyde by visible light |
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