Preparing method of non-crystal alloy catalyst

Abstract

The invention discloses amorphous alloy catalyst with controllable grain size being smaller than 50 nm and uniform grain size distribution, and adds a new variety for the prior amorphous alloy catalyst field. The activity ratio surface area of the amorphous alloy catalyst is 10 to 50 m<2> / g, the particle diameter can be controlled in the range of 2 to 50 nm, and the grain size distribution is uniform. The invention realizes the amorphous alloy catalyst with the grain size being smaller than 50 nm and achieves the controllable grain size and the uniform grain size distribution through the preparation method for controlling the reduction reaction rate by oil in water microemulsion. The amorphous alloy catalyst of the invention can be taken as hydrogenation catalyst containing unsaturated functional group compounds such as alkene, alkyne, arene, nitrile, nitro compound, carbonyl compound, etc., not only the catalytic performance is superior to the catalytic performance of the ordinary amorphous alloy catalyst, but also the catalytic performance can be controlled; the life of the catalyst is longer than the life of the ordinary amorphous alloy catalyst, and the catalyst can be recovered and reused time after time.

Description

A kind of preparation method of amorphous alloy catalyst technical field The invention relates to the field of catalysts, in particular to a method for preparing an amorphous alloy catalyst with a particle size less than 50nm, controllable particle size and uniform distribution. Background technique Amorphous alloys are a new class of long-range disordered and short-range ordered materials. Their unique structural characteristics endow them with high corrosion resistance, high mechanical toughness, and excellent magnetic, electrical, and catalytic properties, and they are also environmentally friendly. . As a catalyst application, amorphous alloys are required to have a higher specific surface area. In order to increase the specific surface area, the chemical reduction method is generally used to prepare amorphous alloy catalysts. In JournalofCatalysis150, 434-438, 1994, it was reported that 2.5M KBH4 aqueous solution was added dropwise to 0.1M nickel acetate ethanol sol...

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Problems solved by technology

It is a commonly used technology to prepare nanoparticles with uniform and controllable particle size by water-in-oil microemulsion, but the content of nanoparticles obtained by this method is less, which is not suitable for practical application; moreover, this method needs to use a large amount of organic solvents, which not only causes Environmental pollution, also makes product separation difficult

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