Terpolymer nanosphere loaded Ni-B catalyst

A ternary copolymer and nanosphere technology, applied in the field of material science, can solve the problems of catalyst agglomeration, low catalytic activity, and not widely used in practical applications, and achieve the effect of high hydrogen yield and high reaction activity.

Inactive Publication Date: 2016-08-03
SHAOXING UNIVERSITY
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] Chinese patent application 201010134982.5 reported a Ru / C catalyst using a porous carbon material as a carrier. This catalyst has a large surface area, high activity, and long life. However, the precious metal Ru has limited reserves and is expensive, so it is not widely used in practice.
However, this unsupported catalyst is prone to agglomeration, resulting in a sharp drop in catalytic activity and poor reusability.
[0007] At present, sodium borohydride hydrolysis catalysts have defects such as high price or low catalytic activity, poor performance, poor catalyst reuse and regeneration performance, etc.

Method used

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  • Terpolymer nanosphere loaded Ni-B catalyst
  • Terpolymer nanosphere loaded Ni-B catalyst
  • Terpolymer nanosphere loaded Ni-B catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Preparation of Ni-B nanocatalyst

[0037] (1) Preparation of terpolymer nanospheres:

[0038] Weigh 1.13g of N-isopropylacrylamide, 0.104g of 2-acrylamide-2-methylpropanesulfonic acid, 0.254g of N-tert-butylacrylamide, 0.046g of N, N'-methylenebisacrylamide in a 100mL three-necked flask Add 45mL of distilled water, stir and dissolve at 70°C under a nitrogen atmosphere, then add 5mL aqueous solution containing 0.053g of potassium persulfate, continue to pass nitrogen for 10min, then close, seal and react for 5h.

[0039] (2) Pretreatment of terpolymer nanospheres:

[0040] Take 15mL of the terpolymer emulsion obtained in the above steps and disperse it in 35mL of a solution containing 1.39g of nickel sulfate, stir for 15h, centrifuge, and repeatedly centrifuge with water, then disperse the solid in 40mL of water, add 10mL of an aqueous solution containing 0.1g of sodium borohydride, Stir the reaction as a stock solution.

[0041] (3) Preparation of Ni-B catalyst:

[...

Embodiment 2

[0044] The preparation method is the same as in Example 1, except that in the preparation of the Ni-B catalyst, the amount of sodium borohydride used in the nickel plating solution is 0.1 g.

Embodiment 3

[0046] The preparation method is the same as in Example 1, except that in the preparation of the Ni-B catalyst, the amount of sodium borohydride used in the nickel plating solution is 0.2 g.

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Abstract

The invention provides a terpolymer nanosphere loaded Ni-B catalyst. The catalyst adopts N-isopropyl acrylamide, 2-acrylamide-2-methyl propanesulfonic acid and n-tert-butyl acrylamide as copolymerized monomers, adopts N,N'-methylene bisacrylamide as a cross-linking agent, and adopts potassium peroxodisulfate as an initiator, and terpolymer nanospheres are synthesized through a soap-free emulsion polymerization method; the nanospheres are dispersed into a nickel sulfate solution for absorbing nickel ions, and adsorbed nickel ions are reduced into nickel metal after centrifuging is performed; the terpolymer nanospheres containing a small amount of nickel metal are dispersed into a nickel plating solution for chemical nickel plating, and the terpolymer nanosphere loaded Ni-B catalyst is obtained. According to the catalyst, raw materials are easy to obtain, the synthesis method is simple, the catalysis efficiency is high, the reaction operation is simple, repeated usage can be achieved, and the terpolymer nanosphere loaded Ni-B catalyst is suitable for catalyzing a sodium borohydride hydrolysis hydrogen production reaction.

Description

[0001] The patent application of the present invention is a divisional application of a Chinese patent application with the filing date of May 30, 2014, the application number of 201410240494.0, and the name of Ni-B catalyst supported by terpolymer nanospheres, its preparation method and application. technical field [0002] The invention belongs to the technical field of material science, and in particular relates to a polymer composite material, in particular to a Ni-B catalyst supported by a terpolymer, a preparation method and its application in catalyzing the hydrolysis reaction of sodium borohydride to produce hydrogen. Background technique [0003] In order to overcome the problems of future energy shortage and environmental pollution, the search for renewable green energy is an important issue that needs to be solved urgently in the world. At present, hydrogen energy is considered to be one of the most ideal clean energy sources in the future energy structure. Hydroge...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/28C01B3/06
CPCY02E60/36B01J31/28B01J2231/62C01B3/06
Inventor 董坚蔡豪坤林琳鹿萍何宁德
Owner SHAOXING UNIVERSITY
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