Macromolecule inorganic composite nanosphere supported Ni-B catalyst and preparation method and application thereof

Abstract

The invention provides a macromolecule inorganic composite nanosphere supported Ni-B catalyst and a preparation method and application thereof. The preparation method comprises the following steps: with N-isopropyl acrylamide, 2-acrylamide-2-methylacrylsulfonate, and N-tert-butylacrylamide as comonomers, an N,N'-methylene bisacrylamide as a crosslinking agent and potassium persulphate as an initiator, synthesizing a terpolymer by a soap-free emulsion polymerization method, centrifuging and drying; dispersing a defined amount of terpolymer in ethanol, pouring in a titanium tetrabutoxide ethanol solution, ultrasonically treating, centrifuging and drying; and dispersing composite nanospheres in a nickel-plated solution for chemical nickel-plating to obtain the macromolecule inorganic composite nanosphere supported Ni-B catalyst. According to the preparation method, a macromolecule material and an inorganic material are compounded and then supported to the metal catalyst, no agglomeration of the metal catalyst in a reaction process can be ensured, and the reaction activity can be effectively improved.

Description

technical field [0001] The invention belongs to the field of material science and technology, and in particular relates to a polymer composite material, in particular to a polymer-inorganic composite loaded Ni-B catalyst, a preparation method and its application in catalyzing the hydrolysis reaction of sodium borohydride to produce hydrogen. Background technique [0002] Hydrogen energy has the advantages of high energy, no pollution, safety, and sustainability. It is an ideal and one of the most potential new energy sources to replace traditional energy sources. However, in the practical application of hydrogen energy, the preparation and storage of hydrogen energy are still the bottlenecks restricting the development of its wide application. The hydrolysis of sodium borohydride to hydrogen has the advantages of high hydrogen storage capacity, mild hydrolysis conditions, and controllable reaction, so it can be used as an ideal hydrogen source. [0003] The hydrolysis react...

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Problems solved by technology

Commonly used catalysts include noble metals Ru, Pt, Pd and non-noble metals Ni, Co, etc. For example, Chinese patent 200710063233.6 reports a Pd / Co / Pd multilayer catalyst with diatomaceous earth or nickel foam as a carrier. Although its catalytic activity is high, the performance Stable, but its catalyst production process is complex, and contains a certain amount of noble metal Pd, the economic benefit is not high

[0004] Chinese patent application 201210388720.0 reports the use of TiO 2 The Co-B catalyst used as a carrier catalyzes the hydrolysis reaction of sodium borohydride to produce hydrogen. This catalyst has the characteristics of low cost, good stability in the air, and convenient use. Under the reaction, problems such as active metal falling off and support cracking occurred, resulting in a decrease in catalyst activity.

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