Simple-substance amorphous palladium and preparing method and application thereof

Abstract

The invention discloses simple-substance amorphous palladium and a preparing method and application thereof. The preparing method comprises the steps that firstly, simple-substance palladium powder isloaded to a silicon nitride substrate; secondly, the silicon nitride to which the simple-substance palladium powder is loaded is heated to 800-1,100 DEG C, and heat preservation is conducted for at least 3 min, wherein the silicon nitride to which the simple-substance palladium powder is loaded is obtained in the first step; thirdly, a palladium and silicon nitride system obtained in the second step is cooled to the room temperature with the apparent cooling rate larger than 103 DEG C / s, and the simple-substance amorphous palladium is obtained. Accordingly, the simple-substance amorphous palladium can be prepared with the low cooling rate through the preparing method, due to singleness of components of the prepared simple-substance amorphous palladium, complexity of multi-component metalglass is avoided, guidance can be better provided for study on the metal glass rheological property, mechanical performance, electrical properties, heat performance and other physical characters, andhigh stability is achieved. Meanwhile, the amorphous palladium has good application prospects in the fields of hydrogen storage, hydrogen separation films and the like.

Description

technical field [0001] The invention belongs to the field of amorphous materials, in particular, the invention relates to elemental amorphous palladium and its preparation method and application. Background technique [0002] Solid amorphous material is a condensed material with short-range order, long-range disorder, and no defects inside. The traditional preparation methods of amorphous mainly include liquid phase quenching and condensation from dilute gaseous state. Among them, the liquid phase quenching method is to heat and melt the material mixture of the required components into a liquid state, and then rapidly cool them in a certain way, so that the disordered structure of the liquid state can be preserved to form an amorphous state. Condensation from the diluted state refers to the dissociation of atoms or ions in the material in gaseous form by different processes, and then they are quickly and irregularly deposited on the cooling base plate to form an amorphous m...

AI Technical Summary

Problems solved by technology

[0004] Although the corresponding amorphous states of body-centered cubic pure metals such as Ta, W, V, and Mo were successfully prepared by the rapid cooling method, this preparation method requires a high cooling rate and has certain requirements on the size of the material.

Images