CN104437500A - Montmorillonite-based metal nickel nanosheet catalyst as well as preparation method and application thereof - Google Patents

Montmorillonite-based metal nickel nanosheet catalyst as well as preparation method and application thereof Download PDF

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CN104437500A
CN104437500A CN201410632565.1A CN201410632565A CN104437500A CN 104437500 A CN104437500 A CN 104437500A CN 201410632565 A CN201410632565 A CN 201410632565A CN 104437500 A CN104437500 A CN 104437500A
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montmorillonite
catalyst
nickel
nano sheet
metal nickel
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CN104437500B (en
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任世彪
李号召
赵荣
水恒福
王知彩
雷智平
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Anhui University of Technology AHUT
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Abstract

The invention discloses a montmorillonite-based metal nickel nanosheet catalyst as well as a preparation method and application thereof, and belongs to the technical field of chemical industry. A catalyst carrier is montmorillonite, an active ingredient is metal nickel, the mass of the nickel accounts for 5-30wt% of the total mass of the catalyst. The preparation method comprises the following steps: fully stirring and mixing the montmorillonite, urea and water, dispersing with the assistance of ultrasonic waves to obtain an aqueous solution of a completely peel-off single-layer montmorillonite nanosheet, guiding a uniformly distributed nickel material on the surface of the single-layer montmorillonite nanosheet dispersed in the aqueous solution by utilizing a chemical liquid phase deposition-precipitation method, and performing high-temperature reduction to prepare the montmorillonite-based metal nickel nanosheet catalyst. The montmorillonite-based metal nickel nanosheet catalyst has excellent catalytic activity to the hydrogenation reaction of aromatic hydrocarbon compounds; meanwhile, the catalyst preparation method is simple, is low in cost and is suitable for industrial production.

Description

A kind of montmorillonite-base metal nickel nano sheet Catalysts and its preparation method and application
Technical field
The invention belongs to chemical technology field, be specifically related to a kind of montmorillonite-base metal nickel nano sheet catalyst, the chemical liquid deposition-precipitation method of its ultrasonic wave added dispersion and the application in aromatic compound catalytic hydrogenation thereof.
Background technology
The two-dimensional structure catalysis material being representative with molecular sieve nanometer sheet, because significantly shortening the mass transfer diffusion path of reactant-product, shows excellent catalytic performance in numerous especially relating in bulky molecular catalysis reaction.Therefore, the Synthesis and applications research of New Two Dimensional structured catalysis material gets more and more people's extensive concerning.Two dimension catalysis material has two building modes generally: one is the synthetic route of " bottom upwards " (" Bottom-up "), from the primary structure units of ZSM-5 molecular sieve, the ZSM-5 nanometer sheet of directly synthesizing by the guide effect of specific dual function surface activating agent the most typically represents (Nature, 2009,461:246-249.).This route exists that cost is higher, the complicated especially specific dual function surface activating agent of preparation process needs the deficiencies such as laboratory self-control, is difficult to realize batch production, is subject to certain restrictions in actual applications.Article 2 is the structure route of " top is downward " (" Top-down "), i.e. post treatment method, as lamellar zeolite, layered double hydroxide (LDHs) etc. carry out the process such as Delamination, ultra-thin molecular sieve (Chem.Rev. is formed to the precursor with layer structure, 2014,114 (9): 4807-4837.) or LDHs nanometer sheet (catalysis journal, 2013,34 (1): 225-234.) two-dimentional catalysis material.It is low, simple to operate and can realize the advantages such as large-scale production that post treatment method has cost, but the extent of exfoliation of lamellar zeolite is often difficult to control (J.Am.Chem.Soc., 2011,133:3288-3291.Chem.Mater., 2011,23:5404-5408.), and usually there is (Angew.Chem.Int.Ed. with the form of colloidal solution in the LDHs nanometer sheet peeled off, 2011,50:9171-9176.), limit its range of application.
Montmorillonite (MMT) is layer structure clay mineral, its crystal structure is at 2 layers of silicon-oxy tetrahedron sandwich, 1 layer of alumina octahedral, the phyllosilicate crystalline texture of composition 2:1, tetrahedron relies on common oxygen atom to be connected with octahedron, form thick about 1nm, length and width are about 100nm, the accurate Three-dimensional wafer of high-sequential, it is the natural process factory of nano particle, when smectite content is very low, its layer structure even can be fully exfoliated as single crystal nanoplate is scattered in water, is to prepare the ideal precursor of New Two Dimensional catalysis material.
Summary of the invention
The object of this invention is to provide a kind of montmorillonite-base metal nickel nano sheet catalyst.
Another object of the present invention is to provide that a kind of cost is lower, the simple method of technique to be to prepare above-mentioned catalyst.
Another object of the present invention is to provide the application of above-mentioned catalyst in aromatic compound hydrogenation reaction.
For achieving the above object, montmorillonite-base metal nickel nano sheet catalyst provided by the invention, its carrier is montmorillonite, and active component is metallic nickel, wherein: the quality of metallic nickel is the 5-30% of catalyst gross mass.
The method of preparation provided by the invention above-mentioned montmorillonite-base metal nickel nano sheet catalyst, the steps include:
A) montmorillonite is mixed 1:20 ~ 100 in mass ratio with water, the montmorillonite aqueous solution of abundant aquation is obtained after stirring at room temperature 2 ~ 4h, add nickel salt and urea respectively according to being 3 ~ 8:1 and 2 ~ 5:1 to the above-mentioned montmorillonite aqueous solution with montmorillonite mass ratio and stirring 0.5 ~ 1 hour, then under the ultrasonic power shattered 40% in instrument in supersonic cell ultrasonic 0.5 ~ 1 hour, the aqueous solution into individual layer montmorillonite nano sheet is peeled off completely;
B) aqueous solution peeled off as individual layer montmorillonite nano sheet completely steps A obtained is placed in Hydrothermal Synthesis still, chemical liquid deposition-precipitation reaction is carried out 1 ~ 8 hour at 90 DEG C, to be cooled to after room temperature centrifuge washing 3 times, at 100 ~ 120 DEG C, to obtain montmorillonite-base nickel hydroxide nano sheet catalyst precarsor after dry 8 ~ 16 hours;
C) the montmorillonite-base nickel hydroxide nano sheet catalyst precarsor obtained by step B leads to hydrogen in 450 ~ 650 DEG C of reduction 3 ~ 6 hours, is cooled to room temperature under an atmosphere of hydrogen, passes into O 2/ N 2volume ratio is the gaseous mixture passivation 2 ~ 4 hours of 0.5 ~ 1.0%, obtains the montmorillonite-base metal nickel nano sheet catalyst that can directly preserve in atmosphere.
Described preparation method, wherein, described in steps A, montmorillonite is preferably na-montmorillonite, and nickel salt used is any one in nickel nitrate, nickel chloride, nickelous sulfate, nickel acetate and nickel formate, preferred nickel nitrate.
Montmorillonite-base metal nickel nano sheet catalyst of the present invention can be applied in aromatic compound (naphthalene or naphthane) catalytic hydrogenation.Aromatic hydrogenation reaction carries out in 40mL stainless steel autoclave.Concrete steps and condition as follows: in autoclave, add 0.125g montmorillonite-base metal nickel nano sheet catalyst successively, 10g mass concentration be 10.0wt% naphthalene n-dodecane solution or 3g naphthane, after sealing, first use H 2replace 3 times to remove air in still, then by H in still 2adjust to required pressure, 300 DEG C, react 2.0h under 5.0MPa, after product is cooled to room temperature, taking-up gas-chromatography is analyzed.
Montmorillonite-base metal nickel nano sheet catalyst provided by the invention, the aqueous solution peeled off completely as individual layer montmorillonite nano sheet is disperseed by ultrasonic wave added, by chemical liquid deposition-precipitation method being scattered in the homogeneous nickel species of the surface of the individual layer montmorillonite nano sheet in aqueous solution introducing distribution, obtain montmorillonite-base metal nickel nano sheet catalyst through high temperature reduction.
Compared with prior art, the present invention has following technique effect:
1) for matrix is obtained, there is two-dimensional structure load type metal Raney nickel with natural clay montmorillonite cheap and easy to get;
2) method for preparing catalyst operating process is simple, is well suited for suitability for industrialized production;
3) do not use noble metal just can prepare to have active high and there is the aromatic hydrocarbon hydrogenation catalyst of certain anti-sulfur poisonous performance.
Accompanying drawing explanation
Fig. 1 is the transmission electron microscope photo of montmorillonite-base metal nickel nano sheet catalyst of the present invention.
Fig. 2 is the transmission electron microscope photo of montmorillonite-loaded Raney nickel prepared by infusion process.
Detailed description of the invention
In order to further illustrate the present invention, exemplify following examples, but it does not limit the invention scope that each claim defines.
One, the preparation of montmorillonite-base metal nickel nano sheet catalyst
Embodiment 1
Take 2g na-montmorillonite and be placed in 200ml beaker, add the montmorillonite aqueous solution that 100ml water stirring at room temperature acquires abundant aquation for 3 hours, get 7g nickel nitrate (Ni (NO respectively 3) 26H 2o), 4g urea is added to the above-mentioned montmorillonite aqueous solution and stirs 1 hour, and then shattering in instrument at ultrasonic power in supersonic cell is the aqueous solution being peeled off as individual layer montmorillonite nano sheet completely in 40% time ultrasonic 0.5 hour.The aqueous solution that stripping is individual layer montmorillonite nano sheet is completely placed in 100ml Hydrothermal Synthesis still, chemical liquid deposition-precipitation reaction is carried out 4 hours at 90 DEG C, to be cooled to after room temperature centrifuge washing 3 times, at 100 DEG C after dry 12 hours in 550 DEG C of logical hydrogen reducings 4 hours, be cooled to room temperature under an atmosphere of hydrogen, pass into O 2/ N 2volume ratio is the gaseous mixture passivation 3 hours of 1.0%, obtains the montmorillonite-base metal nickel nano sheet catalyst that can directly preserve in atmosphere.Represent with Ni/MMT-nanometer sheet 4.
Use transmission electron microscope (Jeol Ltd., JEM-1200EX (120KV)), montmorillonite-base metal nickel nano sheet Ni/MMT-nanometer sheet 4 catalyst is characterized, sees Fig. 1.In order to contrast, be prepared by montmorillonite-loaded metallic nickel Ni/MMT catalyst to conventional infusion process simultaneously and having carried out transmission electron microscope sign, seeing Fig. 2.The very homogeneous whole surface being distributed in montmorillonite of metallic Ni particles in Ni/MMT-nanometer sheet 4 catalyst is can be observed by Fig. 1, also clearly can see from the photo of partial enlargement the montmorillonite single-layer wafers peeled off completely, and single-layer wafers be certain curling shape, metallic nickel is uniformly distributed in single-layer wafers two sides.And in Fig. 2 the upper metal nickel particles of Ni/MMT catalyst do not scatter, reunite more serious; The metallic nickel load at middle part is less, and nickel particles size and difference very heterogeneity; Bottom montmorillonite is stacked layer by layer, and surface texture is irregular, almost non-carried metal nickel.This to illustrate in Ni/MMT catalyst the few and size and size distribution all very heterogeneity of nickel particles number, does not also observe the existence of montmorillonite single-layer wafers.
Embodiment 2
Take 1g na-montmorillonite and be placed in 200ml beaker, add the montmorillonite aqueous solution that 100ml water stirring at room temperature acquires abundant aquation for 2 hours, get 7g nickel formate (Ni (HCO respectively 2) 22H 2o), 4g urea is added to the above-mentioned montmorillonite aqueous solution and stirs 1 hour, and then shattering in instrument at ultrasonic power in supersonic cell is the aqueous solution being peeled off as individual layer montmorillonite nano sheet completely in 40% time ultrasonic 0.5 hour.The aqueous solution that stripping is individual layer montmorillonite nano sheet is completely placed in 100ml Hydrothermal Synthesis still, chemical liquid deposition-precipitation reaction is carried out 2 hours at 90 DEG C, to be cooled to after room temperature centrifuge washing 3 times, at 100 DEG C after dry 12 hours in 450 DEG C of logical hydrogen reducings 3 hours, be cooled to room temperature under an atmosphere of hydrogen, pass into O 2/ N 2volume ratio is the gaseous mixture passivation 3 hours of 1.0%, obtains the montmorillonite-base metal nickel nano sheet catalyst that can directly preserve in atmosphere.Represent with Ni/MMT-nanometer sheet 2.
Embodiment 3
Take 3g na-montmorillonite and be placed in 200ml beaker, add the montmorillonite aqueous solution that 100ml water stirring at room temperature acquires abundant aquation for 3 hours, get 7g nickel chloride (NiCl respectively 26H 2o), 4g urea is added to the above-mentioned montmorillonite aqueous solution and stirs 1 hour, and then shattering in instrument at ultrasonic power in supersonic cell is the aqueous solution being peeled off as individual layer montmorillonite nano sheet completely in 40% time ultrasonic 0.5 hour.The aqueous solution that stripping is individual layer montmorillonite nano sheet is completely placed in 100ml Hydrothermal Synthesis still, chemical liquid deposition-precipitation reaction is carried out 6 hours at 90 DEG C, to be cooled to after room temperature centrifuge washing 3 times, at 100 DEG C after dry 12 hours in 550 DEG C of logical hydrogen reducings 4 hours, be cooled to room temperature under an atmosphere of hydrogen, pass into O 2/ N 2volume ratio is the gaseous mixture passivation 3 hours of 1.0%, obtains the montmorillonite-base metal nickel nano sheet catalyst that can directly preserve in atmosphere.Represent with Ni/MMT-nanometer sheet 6.
Embodiment 4
Take 5g na-montmorillonite and be placed in 200ml beaker, add the montmorillonite aqueous solution that 100ml water stirring at room temperature acquires abundant aquation for 3 hours, get 14g nickelous sulfate (NiSO respectively 46H 2o), 7g urea is added to the above-mentioned montmorillonite aqueous solution and stirs 1 hour, and then shattering in instrument at ultrasonic power in supersonic cell is the aqueous solution being peeled off as individual layer montmorillonite nano sheet completely in 40% time ultrasonic 0.5 hour.The aqueous solution that stripping is individual layer montmorillonite nano sheet is completely placed in 100ml Hydrothermal Synthesis still, chemical liquid deposition-precipitation reaction is carried out 8 hours at 90 DEG C, to be cooled to after room temperature centrifuge washing 3 times, at 100 DEG C after dry 12 hours in 600 DEG C of logical hydrogen reducings 6 hours, be cooled to room temperature under an atmosphere of hydrogen, pass into O 2/ N 2volume ratio is the gaseous mixture passivation 3 hours of 1.0%, obtains the montmorillonite-base metal nickel nano sheet catalyst that can directly preserve in atmosphere.Represent with Ni/MMT-nanometer sheet 8.
Comparative example 1
Conventional infusion process prepares montmorillonite-loaded metalNicatalyst.Taking 2g montmorillonite, is that 10.0wt% gets Ni (NO by metal nickel loading 3) 26H 2o is dissolved in 60m water, is slowly added wherein by montmorillonite, and stirring at room temperature 1 hour, then stirs evaporate to dryness at 85 DEG C, gained sample 100 DEG C of dryings after 12 hours in 550 DEG C of logical hydrogen reducings 4 hours, be cooled to room temperature under an atmosphere of hydrogen, pass into O 2/ N 2volume ratio is the gaseous mixture passivation 3 hours of 1.0%, obtains the montmorillonite-loaded Raney nickel that can directly preserve in atmosphere.Represent with Ni/MMT.
Comparative example 2
Ultrasonic wave added dispersion infusion process prepares montmorillonite-loaded metalNicatalyst.Taking 2g na-montmorillonite and be placed in 200ml beaker, add the montmorillonite aqueous solution that 100ml water stirring at room temperature acquires abundant aquation for 3 hours, is that 10.0wt% gets Ni (NO by metal nickel loading 3) 26H 2o is added to the above-mentioned montmorillonite aqueous solution and stirs 1 hour, shattering in instrument at ultrasonic power in supersonic cell is the aqueous solution being peeled off as individual layer montmorillonite nano sheet completely in 40% time ultrasonic 0.5 hour again, then at 85 DEG C, evaporate to dryness is stirred, gained sample 100 DEG C of dryings after 12 hours in 550 DEG C of logical hydrogen reducings 4 hours, be cooled to room temperature under an atmosphere of hydrogen, pass into O 2/ N 2volume ratio is the gaseous mixture passivation 3 hours of 1.0%, obtains the montmorillonite-loaded Raney nickel that can directly preserve in atmosphere.It is ultrasonic that catalyst is expressed as Ni/MMT-.
Two, montmorillonite-base metal nickel nano sheet catalyst of the present invention is to the catalytic hydrogenation of aromatic hydrocarbons
Embodiment 5
The naphthalene hydrogenation activity of Ni/MMT-nanometer sheet 4 catalyst is evaluated: the naphthalene Hydrogenation evaluation of Ni/MMT-4 catalyst carries out in 40mL stainless steel autoclave.Concrete steps and condition as follows: in autoclave, add 0.125g Ni/MMT-4 catalyst successively, 10g mass concentration be 10.0wt% naphthalene n-dodecane solution, after sealing, first use H 2replace 3 times to remove air in still, then by H in still 2adjust to required pressure, 300 DEG C, react 2.0h under 5.0MPa, after product is cooled to room temperature, taking-up gas-chromatography is analyzed.
The Ni/MMT of Ni/MMT-nanometer sheet 2 and comparative example 1 is the same with Ni/MMT-nanometer sheet 4 with the aromatic hydrogenation activity evaluation of the Ni/MMT-ultrasonically catalyzing agent of comparative example 2.
Reaction result is in table 1.
The naphthalene Hydrogenation of table 1 different montmorillonite-base metal nickel nano sheet catalyst compares
In a catalyst, nickel loading measures according to hydrogen temperature programmed reduction.
Reaction condition: 10.0g naphthalene n-dodecane solution (10.0wt%), 0.125g catalyst, 300 DEG C, 5.0MPa H 2, 2.0h.
Table 1 result shows, montmorillonite-base metal nickel nano sheet catalyst prepared by the present invention, the agent of infusion process made Ni/MMT-ultrasonically catalyzing is disperseed to compare with the made Ni/MMT of conventional infusion process with ultrasonic wave added, naphthalene hydrogenation activity significantly improves, the naphthalene conversion ratio of Ni/MMT and Ni/MMT-ultrasonically catalyzing agent is respectively 26.3% and 36.6%, the naphthalene conversion ratio of Ni/MMT-nanometer sheet 2 catalyst is increased to 87.7%, and Ni/MMT-nanometer sheet 4 catalyst is especially up to 100%, and decahydronaphthalene is selective also up to 85.4%.
Embodiment 6
The naphthane hydrogen activity of Ni/MMT-nanometer sheet 4 catalyst is evaluated: the naphthane Hydrogenation evaluation of Ni/MMT-4 catalyst carries out in 40mL stainless steel autoclave.Concrete steps and condition as follows: in autoclave, add 0.125g Ni/MMT-4 catalyst, 3g naphthane successively, after sealing, first use H 2replace 3 times to remove air in still, then by H in still 2adjust to required pressure, 300 DEG C, react 2.0h under 5.0MPa, after product is cooled to room temperature, taking-up gas-chromatography is analyzed.
Ni/MMT-nanometer sheet 2, Ni/MMT-nanometer sheet 6 are evaluated the same with Ni/MMT-nanometer sheet 4 with Ni/MMT-nanometer sheet 8 and the Ni/MMT of comparative example 1 with the naphthane hydrogenation activity of the Ni/MMT-ultrasonically catalyzing agent of comparative example 2.
Reaction result is in table 2.
The naphthane Hydrogenation of table 2 different montmorillonite-base metal nickel nano sheet catalyst compares
In a catalyst, nickel loading measures according to hydrogen temperature programmed reduction.
B TON is that the naphthane quality transformed based on unit mass metallic nickel in catalyst calculates.
Reaction condition: 3g naphthane, 0.125g catalyst, 300 DEG C, 5.0MPa H 2, 2.0h.
Table 2 result shows, montmorillonite-base metal nickel nano sheet catalyst prepared by the present invention, the agent of infusion process made Ni/MMT-ultrasonically catalyzing is disperseed to compare with the made Ni/MMT of conventional infusion process with ultrasonic wave added, naphthane hydrogenation activity significantly improves, different nickel loading is different to catalyst activity increase rate, wherein, what increase rate was minimum is Ni/MMT-nanometer sheet 2 and Ni/MMT-nanometer sheet 8 catalyst, TON reaches 119.5 and 119.6 respectively, compares the agent of Ni/MMT and Ni/MMT-ultrasonically catalyzing and improves 7.6 and 4.3 times respectively; Nickel loading is that the naphthane hydrogenation activity of Ni/MMT-nanometer sheet 6 catalyst of 18.5% is the highest, and TON, up to 251.1, compares the agent of Ni/MMT and Ni/MMT-ultrasonically catalyzing and improves 17 and 9.3 times respectively.
Three, the active contrast test of aromatic hydrocarbon hydrogenation catalyst
With the method for preparing catalyst identical with comparative example 1, respectively with mesostructured material and commercial oxidation aluminium for carrier prepares Ni/MCM-41 and the Ni/ γ-Al that metallic nickel load capacity is 10.0wt% 2o 3catalyst, and the Ni/MMT of comparative example 1, comparative example 2 Ni/MMT-ultrasonically catalyzing agent catalyst as a comparison.
Embodiment 7
Except catalyst Ni/MMT, all the other are identical with embodiment 5, and reaction result is in table 3.
Embodiment 8
Except catalyst Ni/MMT-is ultrasonic, all the other are identical with embodiment 5, and reaction result is in table 3.
Embodiment 9
Except catalyst Ni/MCM-41, all the other are identical with embodiment 5, and reaction result is in table 3.
Embodiment 10
Except catalyst Ni/ γ-Al 2o 3outward, all the other are identical with embodiment 5, and reaction result is in table 3.
Several catalyst naphthalene of table 3 Hydrogenation comparing result
A TON is that the quality of the naphthalene+naphthane transformed based on unit mass metallic nickel in catalyst calculates
Reaction condition: 10.0g naphthalene n-dodecane solution (10.0wt%), 0.125g catalyst, 300 DEG C, 5.0MPa H 2, 2.0h.
Table 3 result shows, under identical reaction conditions, the montmorillonite-base metal nickel nano sheet catalyst prepared by the present invention, compared with the made Ni/MMT of conventional infusion process, aromatic hydrogenation activity improves 4.2 times; Compared with disperseing the agent of infusion process made Ni/MMT-ultrasonically catalyzing with ultrasonic wave added, aromatic hydrogenation activity improves 2.3 times; Compared with commercial oxidation aluminium supported nickel catalyst, aromatic hydrogenation activity improves 2.1 times; Compared with mesostructured material supported nickel catalyst, aromatic hydrogenation activity improves 32%.Experiment shows: this type of catalyst is that aromatic hydrogenation is saturated with the ideal catalyst reducing the made oil product arene content of coal tar, coal liquefaction oil product, light cycle and living beings.

Claims (7)

1. a preparation method for montmorillonite-base metal nickel nano sheet catalyst, its step is as follows:
A) montmorillonite is mixed 1:20 ~ 100 in mass ratio with water, the montmorillonite aqueous solution of abundant aquation is obtained after stirring at room temperature 2 ~ 4h, add nickel salt and urea respectively according to being 3 ~ 8:1 and 2 ~ 5:1 to the above-mentioned montmorillonite aqueous solution with montmorillonite mass ratio and stirring 0.5 ~ 1 hour, then under the ultrasonic power shattered 40% in instrument in supersonic cell ultrasonic 0.5 ~ 1 hour, the aqueous solution into individual layer montmorillonite nano sheet is peeled off completely;
B) aqueous solution peeled off as individual layer montmorillonite nano sheet completely steps A obtained is placed in Hydrothermal Synthesis still, chemical liquid deposition-precipitation reaction is carried out 1 ~ 8 hour at 90 DEG C, to be cooled to after room temperature centrifuge washing 3 times, at 100 ~ 120 DEG C, to obtain montmorillonite-base nickel hydroxide nano sheet catalyst precarsor after dry 8 ~ 16 hours;
C) the montmorillonite-base nickel hydroxide nano sheet catalyst precarsor obtained by step B leads to hydrogen in 450 ~ 650 DEG C of reduction 3 ~ 6 hours, is cooled to room temperature under an atmosphere of hydrogen, passes into O 2/ N 2volume ratio is the gaseous mixture passivation 2 ~ 4 hours of 0.5 ~ 1.0%, obtains the montmorillonite-base metal nickel nano sheet catalyst that can directly preserve in atmosphere.
2. the preparation method of montmorillonite-base metal nickel nano sheet catalyst as claimed in claim 1, it is characterized in that, the montmorillonite in described steps A is na-montmorillonite.
3. the preparation method of montmorillonite-base metal nickel nano sheet catalyst as claimed in claim 1, it is characterized in that, the nickel salt in described steps A is any one in nickel nitrate, nickel chloride, nickelous sulfate, nickel acetate and nickel formate.
4. the preparation method of montmorillonite-base metal nickel nano sheet catalyst as claimed in claim 3, it is characterized in that, the nickel salt in described steps A is nickel nitrate.
5. the montmorillonite-base metal nickel nano sheet catalyst prepared by method described in claim 1.
6. the application of montmorillonite-base metal nickel nano sheet catalyst in aromatic compound hydrogenation reaction as claimed in claim 5.
7. the application of montmorillonite-base metal nickel nano sheet catalyst in aromatic compound hydrogenation reaction as claimed in claim 6, it is characterized in that, described aromatic compound is naphthalene or naphthane.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108144615A (en) * 2017-12-22 2018-06-12 安徽工业大学 A kind of high degree of dispersion montmorillonite-base metalNicatalyst and its preparation method and application
CN111659378A (en) * 2020-05-22 2020-09-15 安徽师范大学 Montmorillonite-supported palladium-based catalyst, preparation method and application thereof
CN114100615A (en) * 2020-08-31 2022-03-01 中国石油化工股份有限公司 Selective hydrogenation catalyst for four carbon fractions and preparation method thereof
CN114507534A (en) * 2022-04-02 2022-05-17 陕西科技大学 Preparation method of nickel hydroxide modified magnesium aluminum hydrotalcite/montmorillonite nano material

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7476639B2 (en) * 2002-09-30 2009-01-13 Iko Minerals Gmbh Method for the production of catalytically active layer silicates
CN101916865A (en) * 2010-08-30 2010-12-15 重庆大学 Method for preparing montmorillonite-loaded platinum catalyst
CN103191745A (en) * 2013-04-23 2013-07-10 安徽工业大学 Aromatic hydrocarbon hydrogenation catalyst and preparation method thereof

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7476639B2 (en) * 2002-09-30 2009-01-13 Iko Minerals Gmbh Method for the production of catalytically active layer silicates
CN101916865A (en) * 2010-08-30 2010-12-15 重庆大学 Method for preparing montmorillonite-loaded platinum catalyst
CN103191745A (en) * 2013-04-23 2013-07-10 安徽工业大学 Aromatic hydrocarbon hydrogenation catalyst and preparation method thereof

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
宫宝安等: "Ni2+-交换蒙脱石中的镍物种及焙烧温度影响研究", 《化学研究与应用》 *
张玉清: "《插层复合材料》", 30 June 2008 *

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108144615A (en) * 2017-12-22 2018-06-12 安徽工业大学 A kind of high degree of dispersion montmorillonite-base metalNicatalyst and its preparation method and application
CN111659378A (en) * 2020-05-22 2020-09-15 安徽师范大学 Montmorillonite-supported palladium-based catalyst, preparation method and application thereof
CN114100615A (en) * 2020-08-31 2022-03-01 中国石油化工股份有限公司 Selective hydrogenation catalyst for four carbon fractions and preparation method thereof
CN114100615B (en) * 2020-08-31 2023-08-11 中国石油化工股份有限公司 Catalyst for selective hydrogenation of carbon four fraction and preparation method thereof
CN114507534A (en) * 2022-04-02 2022-05-17 陕西科技大学 Preparation method of nickel hydroxide modified magnesium aluminum hydrotalcite/montmorillonite nano material

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