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Mesoporous-structure metal nickel catalyst and its preparing method and use

A technology of mesoporous structure and metal nickel, which is applied in the field of mesoporous structure metal nickel catalyst and its preparation, and achieves excellent results

Inactive Publication Date: 2007-11-14
SHANGHAI NORMAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Electroless plating is a widely used and relatively mature technology, and the equipment is simple, easy to operate, and the obtained coating has good continuity and uniformity. However, the research on the preparation of mesoporous metal materials by electroless plating technology has not been reported yet.

Method used

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  • Mesoporous-structure metal nickel catalyst and its preparing method and use
  • Mesoporous-structure metal nickel catalyst and its preparing method and use
  • Mesoporous-structure metal nickel catalyst and its preparing method and use

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] 1) Preparation of amine functionalized SBA-15 template

[0025] At 40°C, add 2g of P123 and 62.5mL of 2M hydrochloric acid, stir until the surfactant is completely dissolved; then add 4.2mL of tetraethyl orthosilicate (TEOS) and continue stirring for 3h; add 0.47mL of 3-aminopropyl-trimethoxy base silane, continue to stir at the same temperature for 24 hours; transfer the resulting mixed solution to a polytetrafluoroethylene water thermos bottle, and hydrothermally react in an oven at 100 ° C for 24 hours; cool, filter, wash, and vacuum dry. Obtain a white powder; reflux 1.0 g of the above white powder with 500 mL of absolute ethanol for 24 h; suction filter, wash, and dry to obtain the amine-functionalized SBA-15 template, which is denoted as NH 2 -SBA-15.

[0026] 2) Preparation of chemical plating solution

[0027] Prepare 50mL electroless plating solution, its composition is: 0.1mol / L NiSO 4 ·6H 2 O, 0.25mol / LNiCl 2 ·6H 2 O, 0.085mol / L Na 3 C 6 h 5 o 7 2H ...

Embodiment 2

[0038] 1) Preparation of amine functionalized SBA-15 template

[0039] At 40°C, add 2g of P123 and 62.5mL of 2M hydrochloric acid, stir until the surfactant is completely dissolved; then add 4.2mL of tetraethyl orthosilicate (TEOS) and continue stirring for 3h; add 1.1mL of 3-aminopropyl-trimethoxy base silane, continue to stir at the same temperature for 24 hours; transfer the resulting mixed solution to a polytetrafluoroethylene water thermos bottle, and hydrothermally react in an oven at 100 ° C for 24 hours; cool, filter, wash, and vacuum dry. Obtain a white powder; reflux 1.0 g of the above white powder with 500 mL of absolute ethanol for 24 h; suction filter, wash, and dry to obtain the amine-functionalized SBA-15 template, which is denoted as NH 2 -SBA-15.

[0040] All the other steps are the same as in Example 1.

[0041] After BET detection, the specific surface area of ​​the obtained sample is 152m 2 / g.

Embodiment 3

[0043] 1) Preparation of amine functionalized SBA-15 template

[0044] At 40°C, add 2g of P123 and 62.5mL of 2M hydrochloric acid, stir until the surfactant is completely dissolved; then add 4.2mL of tetraethyl orthosilicate (TEOS) and continue stirring for 3h; add 0.21mL of 3-aminopropyl-trimethoxy base silane, continue to stir at the same temperature for 24 hours; transfer the resulting mixed solution to a polytetrafluoroethylene water thermos bottle, and hydrothermally react in an oven at 100 ° C for 24 hours; cool, filter, wash, and vacuum dry. Obtain a white powder; reflux 1.0 g of the above white powder with 500 mL of absolute ethanol for 24 h; suction filter, wash, and dry to obtain the amine-functionalized SBA-15 template, which is denoted as NH 2 -SBA-15.

[0045] All the other steps are the same as in Example 1.

[0046] After BET detection, the specific surface area of ​​the obtained sample is 96m 2 / g.

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Abstract

The present invention discloses a metal nickel catalyst with mesohole structure. It is characterized by that its surface area is 50-250 sq.m / g, pore size is 2-5nm and pore volume is 0.2-0.8 cu.cm / g. Its preparation method includes the following steps: (1), preparing SBA-15 template; (2), preparing chemical plating solution; (3), implanting palladium crystal seed into the pore of template; (4), adopting chemical nickel-plating process to inject metal nickel into the pore of template; (5), using hot alkali liquor to remove template; and (6), filtering, washing and vacuum drying. The invented catalyst can be used for making hydrogenation reaction of the compounds containing unsaturated functional group, such as olefin, alkine, aromatic hydrocarbon, nitrile, nitro compound and carbonyl compound, etc.

Description

technical field [0001] The invention relates to the field of catalysts, in particular to a mesoporous metal nickel catalyst and its preparation method and application. Background technique [0002] Metal materials with mesoporous structures combine the characteristics of one-dimensional nanomaterials and metals themselves, and have excellent physical and chemical properties. In particular, mesoporous metals have shown attractive application prospects in the fields of selective adsorption and separation, space materials, optoelectronic devices, and electrode materials due to their special pore structure, quantum effects, and interface coupling effects. In fact, mesoporous metals have far-reaching practical application value in the field of catalysis, because the pore size of mesoporous metals just falls on the molecular size, and can be used as molecular "microreactors"; at the same time, due to their rich topology and large The specific surface area can better control the s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/755C07B35/02C07C209/32C23C18/32
Inventor 李辉李和兴林宏
Owner SHANGHAI NORMAL UNIVERSITY
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