CN108906096A - A kind of ordered mesopore carbon for alcohol dehydrogenase encapsulates metal-carbide catalyst and preparation - Google Patents

A kind of ordered mesopore carbon for alcohol dehydrogenase encapsulates metal-carbide catalyst and preparation Download PDF

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CN108906096A
CN108906096A CN201810811544.4A CN201810811544A CN108906096A CN 108906096 A CN108906096 A CN 108906096A CN 201810811544 A CN201810811544 A CN 201810811544A CN 108906096 A CN108906096 A CN 108906096A
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metal
catalyst
ordered mesopore
preparation
carbide catalyst
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CN108906096B (en
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冷炎
姜宇晨
王大伟
蒋平平
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Jiangnan University
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J27/00Catalysts comprising the elements or compounds of halogens, sulfur, selenium, tellurium, phosphorus or nitrogen; Catalysts comprising carbon compounds
    • B01J27/20Carbon compounds
    • B01J27/22Carbides
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00Catalysts, in general, characterised by their form or physical properties
    • B01J35/60Catalysts, in general, characterised by their form or physical properties characterised by their surface properties or porosity
    • B01J35/64Pore diameter
    • B01J35/6472-50 nm
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01JCHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/0009Use of binding agents; Moulding; Pressing; Powdering; Granulating; Addition of materials ameliorating the mechanical properties of the product catalyst
    • B01J37/0027Powdering
    • B01J37/0036Grinding
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C45/00Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds
    • C07C45/002Preparation of compounds having >C = O groups bound only to carbon or hydrogen atoms; Preparation of chelates of such compounds by dehydrogenation
    • CCHEMISTRY; METALLURGY
    • C07ORGANIC CHEMISTRY
    • C07CACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C2601/00Systems containing only non-condensed rings
    • C07C2601/12Systems containing only non-condensed rings with a six-membered ring
    • C07C2601/14The ring being saturated
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02PCLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00Technologies relating to chemical industry
    • Y02P20/50Improvements relating to the production of bulk chemicals
    • Y02P20/584Recycling of catalysts

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Catalysts (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention discloses a kind of ordered mesopore carbons for alcohol dehydrogenase to encapsulate metal-carbide catalyst and preparation, belongs to Industrial Catalysis and fine field of chemical technology.The present invention independently fills template, tannic acid and source metal blending ball milling, and then high temperature cabonization is made ordered mesopore carbon and encapsulates metal-carbide catalyst.The catalyst prepares aldehyde for the alcohol dehydrogenase reaction of anaerobic agent, obtains excellent catalytic activity and selectivity, and catalyst simply can be recycled and be reused.The advantages of this hair, is, method for preparing catalyst simplicity is easily operated, solvent-free, speed is fast, can be mass, more importantly the unique order mesoporous confinement structure of catalyst can not only effectively accelerate the mass transfer of reaction substrate, the solution-off and reunion of active constituent can be also prevented, to impart its excellent catalytic performance.

Description

A kind of ordered mesopore carbon for alcohol dehydrogenase encapsulates metal-carbide catalyst and preparation
Technical field
The present invention relates to a kind of ordered mesopore carbons for alcohol dehydrogenase to encapsulate metal-carbide catalyst and preparation, using template Self assembly is blended in agent, tannic acid and source metal ball milling, and then high temperature cabonization is prepared ordered mesopore carbon encapsulation metal-carbide and urges Agent belongs to Industrial Catalysis and fine field of chemical technology.
Background technique
Aldehyde is a kind of important chemical intermediate, is widely used in Minute Organic Synthesis and organic chemical industry's process.Currently, often The synthetic method for the aldehyde seen is with hydrogen peroxide (H2O2) or oxygen (O2) it is oxidant, under conditions of noble metal is catalyst Oxidation alcohol obtains.In order to further save cost, energy consumption is reduced, in recent years, people have invested sight more with transition gold Belonging to (such as Mo, V, Ni, Cu, Co, Mn, Fe and Ti etc.) is catalyst, the alcohol direct dehydrogenation catalytic process of anaerobic agent.
For metal-carbide since its is cheap, stability is good, and has good electronic conduction ability, it is considered to be most has Desired multiphase non-precious metal catalyst.Although metal-carbide is in electrolysis aquatic products hydrogen, in numerous reactions such as organic matter dehydrogenation Show excellent catalytic performance, the application in the fine chemicals of synthesis high added value is also relatively fewer, is badly in need of expanding Application of the metal-carbide in Minute Organic Synthesis field.On the other hand, the catalytic activity of metal-carbide largely depends on In its structure composition, pattern and crystal structure.Constructing, there is the metal-carbide catalyst of nano pore structure to be conducive to accelerate instead It answers the mass transfer of substrate and sufficiently exposes active site, to improve catalytic activity.However, traditional preparation method is difficult to point The uniform good metal-carbide catalyst of lattice structure is dissipated, therefore, designing and develop a kind of simply and effectively construct has The preparation method of the metal-carbide catalyst of ordered meso-porous structure has important industrial application value.To solve the above-mentioned problems, Self assembly is blended in template, tannic acid and source metal ball milling by the present invention, and then high temperature cabonization prepares ordered mesopore carbon encapsulation carbon Change metallic catalyst, and be applied to alcohol dehydrogenase reaction, which has not been reported yet.
Summary of the invention
The present invention be directed to deficiency existing for tradition carbonization metal fabrication methods, a kind of simple process, easy to operate is provided Ordered mesopore carbon encapsulation metal-carbide catalyst preparation method, and by catalyst be applied to anaerobic agent alcohol dehydrogenase reaction, Achieve good catalytic effect.
Technical solution of the present invention:A kind of mechanical ball of the ordered mesopore carbon encapsulation metal-carbide catalyst for alcohol dehydrogenase Grind Preparation Method, it is characterised in that including following procedure:
It according to mass ratio is 1 by template and tannic acid:0.6~1:2 are added in the filling of 30mL stainless steel ball-milling, add simultaneously Enter the stainless steel ball that 2~6 diameters are 1.2cm, ball milling filling is placed in 10~60min of ball milling on three-dimensional concussion ball milling instrument, concussion Frequency is 20~40Hz, then addition source metal continuation 30~60min of ball milling, and the mass ratio of source metal and tannic acid is 1:5~ 1:2, obtained ball-milled mixtures are placed in tube furnace in 700~900 DEG C of nitrogen atmospheres 2~4h of calcining, heating rate is 2~ 10 DEG C/min, obtain ordered mesopore carbon encapsulation metal-carbide catalyst;
The application of above-mentioned ordered mesopore carbon encapsulation metal-carbide catalyst alcohol dehydrogenase reaction, it is characterised in that:By alcohol With organic solvent according to mass ratio 1:3~1:10 mixing add the ordered mesopore carbon that quality is alcohol quality 1%~8% and encapsulate Metal-carbide catalyst is 70~120 DEG C in reaction temperature, is stirred to react 4~10h, obtains the mixture containing aldehyde product;
The preparation method of above-mentioned ordered mesopore carbon encapsulation metal-carbide catalyst, which is characterized in that template be P123 or F127, source metal are one of ammonium molybdate, ammonium tungstate, ammonium metavanadate, molybdenum pentachloride, tungsten chloride, vanadium chloride.
Above-mentioned application, which is characterized in that alcohol is benzyl alcohol, benzyl carbinol, cyclohexanol, benzohydrol, n-butanol, just pungent One of alcohol, organic solvent are one of acetonitrile, DMF, toluene, DMSO.
Compared with prior art, it is an advantage of the invention that:Catalyst preparation process is simple, is not necessarily to solvent, speed fastly, gained Metal-carbide catalyst has good crystal structure and ordered mesopore structure, reacts for alcohol dehydrogenase, without oxidant, catalysis Activity and selectivity is high and catalyst can be recycled and be reused with simple filtration.
Detailed description of the invention
Fig. 1 ordered mesopore carbon encapsulation molybdenum carbide catalyst x-ray diffraction pattern (XRD) prepared by the present invention.
Fig. 2 ordered mesopore carbon prepared by the present invention encapsulates molybdenum carbide catalyst N2Absorption and graph of pore diameter distribution.
Specific embodiment
The present invention is further illustrated below by specific embodiment, but does not limit the present invention.
【Embodiment 1】
It according to mass ratio is 0.8 by F127 and tannic acid:1 is added in the filling of 30mL stainless steel ball-milling, while being added 3 directly Diameter is the stainless steel ball of 1.2cm, ball milling filling is placed in ball milling 30min, oscillation frequency 30Hz on three-dimensional concussion ball milling instrument, then The mass ratio of addition ammonium molybdate continuation ball milling 30min, ammonium molybdate and tannic acid is 1:3, obtained ball-milled mixtures are placed in pipe 2h is calcined in formula furnace in 800 DEG C of nitrogen atmospheres, heating rate is 5 DEG C/min, obtains ordered mesopore carbon encapsulation molybdenum carbide catalyst.
Fig. 1 is the XRD diagram that ordered mesopore carbon encapsulates molybdenum carbide catalyst.
Fig. 2 is the N that ordered mesopore carbon encapsulates molybdenum carbide catalyst2Absorption and graph of pore diameter distribution.
【Embodiment 2】
It according to mass ratio is 0.8 by F127 and tannic acid:1 is added in the filling of 30mL stainless steel ball-milling, while being added 3 directly Diameter is the stainless steel ball of 1.2cm, ball milling filling is placed in ball milling 30min, oscillation frequency 30Hz on three-dimensional concussion ball milling instrument, then The mass ratio of addition ammonium tungstate continuation ball milling 30min, ammonium molybdate and tannic acid is 1:3, obtained ball-milled mixtures are placed in pipe 3h is calcined in formula furnace in 900 DEG C of nitrogen atmospheres, heating rate is 5 DEG C/min, obtains ordered mesopore carbon encapsulation tungsten carbide catalyst.
【Embodiment 3】
By benzyl alcohol and DMSO according to mass ratio 1:5 mixing add the ordered mesopore carbon that quality is alcohol quality 5% and encapsulate Molybdenum carbide catalyst is 100 DEG C in reaction temperature, is stirred to react 4h, obtains the mixture containing benzaldehyde product, through gas phase color The conversion ratio and selectivity of spectrum detection reaction are respectively 98% and 100%.
【Embodiment 4】
By cyclohexanol and DMSO according to mass ratio 1:5 mixing add the ordered mesopore carbon that quality is alcohol quality 5% and encapsulate Molybdenum carbide catalyst is 100 DEG C in reaction temperature, is stirred to react 6h, obtains the mixture containing cyclohexanone products, through gas phase color The conversion ratio and selectivity of spectrum detection reaction are respectively 96% and 100%.
Although the present invention has been described by way of example and in terms of the preferred embodiments, it is not intended to limit the invention, any to be familiar with this skill The people of art can do various change and modification, therefore protection model of the invention without departing from the spirit and scope of the present invention Enclosing subject to the definition of the claims.

Claims (6)

1. a kind of mechanical ball mill preparation method of the ordered mesopore carbon encapsulation metal-carbide catalyst for alcohol dehydrogenase, feature exist In including following procedure:
It according to mass ratio is 1 by template and tannic acid:0.6~1:2 are added in the filling of 10~100mL stainless steel ball-milling, simultaneously The stainless steel ball that 2~6 diameters are 1.0~2.0cm is added, by ball milling filling be placed in ball milling 10 on three-dimensional concussion ball milling instrument~ 60min, oscillation frequency are 20~40Hz, and source metal is then added and continues 30~60min of ball milling, the quality of source metal and tannic acid Than being 1:5~1:2, obtained ball-milled mixtures are placed in tube furnace 2~4h of calcining in 700~900 DEG C of nitrogen atmospheres, heating Rate is 2~10 DEG C/min, obtains ordered mesopore carbon encapsulation metal-carbide catalyst.
2. preparation method according to claim 1, which is characterized in that template is P123 or F127.
3. preparation method according to claim 1, which is characterized in that source metal be ammonium molybdate, ammonium tungstate, ammonium metavanadate, One of molybdenum pentachloride, tungsten chloride, vanadium chloride.
4. being answered by what the ordered mesopore carbon encapsulation metal-carbide catalyst alcohol dehydrogenase of claim 1 the method preparation reacted With, it is characterised in that:By pure and mild organic solvent according to mass ratio 1:3~1:10 mixing, add quality be alcohol quality 1%~ 8% ordered mesopore carbon encapsulates metal-carbide catalyst, is 70~120 DEG C in reaction temperature, is stirred to react 4~10h, is contained There is the mixture of aldehyde product.
5. application according to claim 4, which is characterized in that alcohol be benzyl alcohol, benzyl carbinol, cyclohexanol, benzohydrol, One of n-butanol, n-octyl alcohol.
6. application according to claim 4, which is characterized in that organic solvent is acetonitrile, DMF, toluene, one in DMSO Kind.
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Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109364906A (en) * 2018-12-13 2019-02-22 浙江工业大学 A kind of boron doping gold/mesoporous carbon catalyst and its preparation method and application of ball-milling method preparation
CN109499592A (en) * 2018-12-25 2019-03-22 太原理工大学 Nanometer rods molybdenum carbide/molybdenum dioxide composite material preparation method
CN109806873A (en) * 2019-01-26 2019-05-28 华南理工大学 A method of preparing the meso-porous carbon material of load Ni using solid-state synthetic method
CN111545239A (en) * 2020-05-29 2020-08-18 江南大学 Solid catalyst for glycerol oxidation and preparation method thereof
CN113995837A (en) * 2021-11-05 2022-02-01 中国科学院长春应用化学研究所 Template-free hollow tannic acid-iron nano coordination sphere and preparation method and application thereof
CN115350721A (en) * 2022-10-21 2022-11-18 农业农村部环境保护科研监测所 Nickel-based double-active-domain catalyst and preparation method and application thereof

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CN107308970A (en) * 2017-07-07 2017-11-03 江南大学 It is a kind of to be used to synthesize porous silicon carbide metallic catalyst of organic imine and preparation method thereof

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Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109364906A (en) * 2018-12-13 2019-02-22 浙江工业大学 A kind of boron doping gold/mesoporous carbon catalyst and its preparation method and application of ball-milling method preparation
CN109364906B (en) * 2018-12-13 2021-07-27 浙江工业大学 Boron-doped mesoporous carbon catalyst prepared by ball milling method and preparation method and application thereof
CN109499592A (en) * 2018-12-25 2019-03-22 太原理工大学 Nanometer rods molybdenum carbide/molybdenum dioxide composite material preparation method
CN109499592B (en) * 2018-12-25 2020-10-27 太原理工大学 Preparation method of nanorod molybdenum carbide/molybdenum dioxide composite material
CN109806873A (en) * 2019-01-26 2019-05-28 华南理工大学 A method of preparing the meso-porous carbon material of load Ni using solid-state synthetic method
CN111545239A (en) * 2020-05-29 2020-08-18 江南大学 Solid catalyst for glycerol oxidation and preparation method thereof
CN111545239B (en) * 2020-05-29 2021-06-25 江南大学 Solid catalyst for glycerol oxidation and preparation method thereof
CN113995837A (en) * 2021-11-05 2022-02-01 中国科学院长春应用化学研究所 Template-free hollow tannic acid-iron nano coordination sphere and preparation method and application thereof
CN113995837B (en) * 2021-11-05 2023-06-06 中国科学院长春应用化学研究所 Template-free hollow tannic acid-iron nano coordination sphere and preparation method and application thereof
CN115350721A (en) * 2022-10-21 2022-11-18 农业农村部环境保护科研监测所 Nickel-based double-active-domain catalyst and preparation method and application thereof

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