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Polymer supported Pd-Ni-B nano-catalyst, preparation method and application thereof

A nano-catalyst, polymer-supported technology, applied in chemical instruments and methods, physical/chemical process catalysts, organic compound/hydride/coordination complex catalysts, etc., can solve problems such as high price and limited Ru metal storage , to achieve the effect of easy separation and high hydrogen yield

Inactive Publication Date: 2013-01-02
SHAOXING UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Chinese patent 201010134982.5 reports a Ru / C catalyst using a porous carbon material as a carrier. This catalyst has a large surface area, high activity, and long life, but Ru metal storage is limited and expensive. Therefore, boron with lower price and excellent performance is researched. Sodium hydride hydrolysis catalyst is very necessary

Method used

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  • Polymer supported Pd-Ni-B nano-catalyst, preparation method and application thereof
  • Polymer supported Pd-Ni-B nano-catalyst, preparation method and application thereof
  • Polymer supported Pd-Ni-B nano-catalyst, preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Embodiment 1: the preparation mode of Pd-Ni-B nano-catalyst of the present invention, comprises the following steps:

[0042] 1. Preparation of PVP solution:

[0043] Weigh 2.5g of polyvinylpyrrolidone (PVP) into a beaker, add 20mL of distilled water to dissolve it, and then add 20mL of PdCl prepared in advance 2 -HCl (200 mg PdCl 2 +200mL 0.5 mol / L HCl solution) and 20 ml NiSO 4 solution (0.59 g NiSO 4 ·7H 2 O and 20mL distilled water), and slowly add NaBH dropwise with stirring 4 solution (0.172 g NaBH 4 + 20mL distilled water), the reaction was complete.

[0044] 2. Preparation of acrylamide solution:

[0045] Take 7.82 g of acrylamide, add 0.93 g of N,N'-methylenebisacrylamide (MBAM) as a cross-linking agent, 0.15 g of potassium persulfate as an initiator, and 20 mL of distilled water as a solvent, stir and let stand to dissolve the solid .

[0046] 3. Mixing:

[0047] Mix the two solutions prepared in step 1 and step 2 in a beaker, put the mixed solution ...

Embodiment 2

[0050] The preparation method is the same as in Example 1, the difference is that: increase the amount of Pd used, so that PdCl 2 The amount of substance and NiSO 4 The ratio of the amount of substances is 1:5.

[0051]

Embodiment 3

[0053] The preparation method is the same as in Example 1, the difference is that: increase the amount of Pd used, so that PdCl 2 The amount of substance and NiSO 4 The ratio of the amount of substances is 1:10.

[0054]

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Abstract

The invention discloses a polymer supported Pd-Ni-B nano-catalyst, a preparation method and application thereof, belonging to the field of polymer supported nano-catalyst. The catalyst is characterized by preparing by mixing polyvinylpyrrolidone (PVP), palladium chloride and nickel sulfate, reacting to form PVP-Pd-Ni metal complex, and reducing the PVP-Pd-Ni metal complex to obtain solution a; mixing acrylamide, acrylamide cross-linking agent, water and initiator to obtain solution b; and mixing solutions a and b, and reacting to obtain the polymer supported Pd-Ni-B nano-catalyst. The inventive catalyst has obvious effect in catalyzing hydrolysis of sodium borohydride in hydrogen preparation, and still has good catalytic effect after multiple times of usage.

Description

Technical field: [0001] The invention relates to a polymer composite material, in particular to a polymer-loaded Pd-Ni-B nanometer catalyst, a preparation method and its application in catalyzing the hydrolysis reaction of sodium borohydride to produce hydrogen. Background technique: [0002] Due to the limitations of traditional petroleum and coal energy sources and their environmental pollution, clean hydrogen energy has become the focus of new energy development in recent years. One of the key technologies for the production of high-purity hydrogen is the high-speed, efficient and controllable release from the solid or liquid phase, which can be industrialized on a large scale. [0003] Sodium borohydride is one of the important chemical hydrogen storage materials, with high hydrogen storage capacity, good stability, environmental friendliness, convenient transportation, and high purity hydrogen production. Sodium borohydride (NaBH 4 ) hydrolysis to produce hydrogen is ...

Claims

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Application Information

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IPC IPC(8): B01J31/06C01B3/06
CPCY02E60/36
Inventor 董坚刘文瑜钟傅亚峰
Owner SHAOXING UNIVERSITY
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