Method for synthesizing M(BH4)n and/or M2/nB12H12

Abstract

The invention belongs to the field of inorganic material synthesis processes, and discloses a method for synthesizing M(BH4)n and / or M2 / nB12H12. Specifically, M(BH4)n and the M2 / nB12H12 are obtained through reaction of M(NH2)n and B10H14, M is selected from Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba and Al and n is 1, 2 or 3. A precedent of preparing borohydride is initiated through reaction of metal amide and B10H14; a new way is provided for synthesis of a metal borohydride material; and the condition that a plasma strategy is effective means of synthesis of a metal dodecane compound is provided. The reaction conditions are simple, the security is high, a product can be obtained without dewatering treatment, a solvent does not need to be used and the environment is protected.

Description

technical field

[0001] The invention belongs to the field of inorganic material synthesis technology, in particular to a synthetic M(BH 4 ) n and / or M 2 / n B 12 h 12 Methods. Background technique

[0002] Metal borohydride M(BH 4 ) n As an important inorganic compound, it has been widely used in chemical reactions, hydrogen storage materials, and solid-state ion batteries, thus attracting great research interest. In numerous M(BH 4 ) n Compound, sodium borohydride NaBH 4 , is the most widely used and most important, and thousands of tons of sodium borohydride are produced and consumed every year, far exceeding the levels of any other borohydride. Because of its high hydrogen storage density (10.7wt%, 114.5kg / m 3 ), sodium borohydride is also considered as a promising hydrogen storage material. In the hydrogen absorption and desorption cycle of sodium borohydride, the formation of stable B 12 Skeleton Na 2 B 12 h 12 Reaction intermediates affect its hydrogen ab...

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