Method for rapidly preparing multi-element perovskite oxide nanocrystalline material

The invention belongs to the field of perovskite materials, and discloses a method for rapidly preparing a multi-element perovskite oxide nanocrystalline material. The method comprises the following steps: dissolving metal inorganic salt powder, adding a chelating agent, drying and calcining to obtain amorphous metal oxide precursor powder, and carrying out electromagnetic induction heating on the precursor powder to obtain the required multi-element perovskite oxide nanocrystalline material. The multi-element perovskite oxide nanocrystalline material produced by an electromagnetic induction heating method has the advantages of low raw material cost, extremely short reaction time, single product structure, small grain size, narrow grain size distribution, simple process, easiness in amplification and the like; and the prepared multi-element perovskite oxide nanocrystalline material has a good electro-catalytic property. 本发明属于钙钛矿材料领域，公开一种快速制备多元钙钛矿氧化物纳米晶材料的方法。本发明所述方法是将金属无机盐粉体溶解后，加入螯合剂，经干燥、煅烧得到非晶的金属氧化物前驱体粉，对前驱体粉