Process for preparing hydrogen storage sodalite composite material

Abstract

The invention discloses a method for preparing hydrogen storage sodalite composite material, belonging to the field of producing and preparing inorganic functional material. The method is characterized in that dried sodalite material is ground, is screened by 100-mesh sieve for separation and then added with transition metal ion water solution; after that, the material which is processed by ion exchange is obtained by ion exchange, suction filtration and drying at the constant temperature is obtained. The obtained material is deacidized under reducing atmosphere, and the sodalite composite material having higher adsorbance for hydrogen under the normal pressure can be obtain after procedure temperature reduction. The method has the advantages that the sodalite composite material having more hydrogen storage quantity under the normal pressure can be prepared; no detrimental impurity and waste emission can be caused in the whole preparation process; the method has remarkable advantages on preparation cost, production performance, process flow, environment-friendly property, economic profit and the like; the raw material is high in industrialization degree, low in cost, simple and convenient in synthesis, low in facility requirement, high in product performance and applicable to commercial process.

Description

technical field [0001] The invention belongs to the field of production and preparation of inorganic functional materials, and relates to a preparation method of a sodalite composite material with relatively large adsorption capacity for hydrogen under normal temperature and pressure. Background technique [0002] Existing hydrogen storage technologies can be roughly divided into five types: liquid hydrogen storage, high-pressure hydrogen storage, organic compound hydrogen storage, metal compound hydrogen storage and media adsorption hydrogen storage. [0003] Liquid hydrogen storage, due to the extremely low boiling point of hydrogen (20K), this method consumes a lot of energy, costs high, requires high equipment materials, and has harsh operating and service conditions. It is mostly used in high-tech fields such as rockets, spacecraft, and satellite launches; High-pressure hydrogen storage has high requirements on the material of hydrogen storage container, poor storage an...

AI Technical Summary

Problems solved by technology

However, due to the van der Waals force between the medium and hydrogen, the hydrogen storage capacity of such materials is relatively low, and the hydrogen storage capacity at room temperature is even lower.

At present, there is a lack of a new material preparation technology that can increase the force between zeolite and hydrogen, so as to increase the hydrogen storage capacity of zeolite materials