Metal boride catalyst with high activity to hydrogen and its preparing method

Abstract

The present invention belongs to the field of hydrogen preparation and energy source technology, and provides a kind of metal boride catalyst with dehydrogenation and hydrogenation characteristic. The metal boride catalyst has the general expression of MxB, where, M is Al, Zr, V, Cr, Co or other metal elements or their combination, and x is 1-4. Into the metal boride, O and / or H may be combined chemically or physically. The catalyst has low cost, excellent hydrogenation activity, and dehydrogenation efficiency up to 96 %. The preparation process of the metal boride catalyst is also provided, and the preparation process includes chemical reaction inside solution to prepare precursor and subsequent two stages of heat treatment. The preparation process is simple and suitable for large scale production.

Description

technical field

[0001] The invention belongs to the technical field of hydrogen preparation and energy, and provides a metal boride catalyst with high activity to hydrogen and a preparation method thereof. Background technique

[0002] As a renewable secondary energy source, hydrogen has a high calorific value and a fast reaction speed. It can be obtained through a variety of reaction pathways, can be stored in gaseous or liquid state, and can be stored in solid compounds. Therefore, various economic methods can be adopted. The way to effectively transport, adapt to various industrial needs. The by-product of hydrogen after releasing energy is water, which is an environmentally friendly process. At present, hydrogen energy is being researched and applied more and more, but its research and development is of great significance for solving the energy problems faced by human beings in sustainable development. Through the power generation method of fuel cells, hydrogen can be ...

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