A cauliflower-like metal-rich phase cu 3 The preparation method of p

Abstract

The invention discloses a preparation method for cauliflower-like metal-rich phase Cu3P. The preparation method comprises the following steps: adding red phosphorus into a Cu<2+> solution under stirring to obtain a solution A; then, adding a pyrrole monomer into the solution A, and carrying out ultrasonic treatment to obtain uniform suspension; pouring the suspension into a reaction kettle to react; after the reaction is finished and a product is washed by absolute ethyl alcohol, drying in a freezing drying box to obtain black blue powder, i.e., the cauliflower-like metal-rich phase Cu3P. Thepreparation method disclosed by the invention has the advantages of simple technology, easy control and operation, good safety and stability and easiness in realizing industrial mass production; the requirements of required equipment and instruments are simpler, cheap raw materials are used, and the cauliflower-like Cu3P material with relatively good crystallinity, high purity and single morphology can be prepared more effectively.

Description

technical field [0001] The invention relates to the fields of nanomaterials and electrochemistry, in particular to a cauliflower-like metal-rich phase Cu 3 The preparation method of P. Background technique [0002] Transition metal phosphides have a wide range of applications in the fields of magnetism, optics, and energy storage. The polyphosphide anions are formed by direct P-P bonding, and transition metal phosphides exist in phases with different phosphorus contents such as metal-rich and phosphorus-rich. Current research shows that, compared with oxides and sulfides, transition metal phosphides have the smallest polarization strength and are suitable as anode materials for lithium-ion batteries. Copper phosphide (Cu 3 P) As a metal-rich phosphide, the volume specific capacity is as high as 2778Ah / L, which is four times that of graphite electrodes. It has great application prospect. [0003] The method for preparing copper phosphide at present has ball milling metho...

AI Technical Summary

Problems solved by technology

However, when using the hydrothermal method to prepare copper phosphide with a specific shape, it is often necessary to add a surfactant as a template to control the shape of the product; the ball milling method is likely to cause product agglomeration, and the process conditions are difficult to control; the high-temperature solid-phase method consumes a lot of energy , and it is easy to cause abnormal growth of particles, and it is difficult to control the shape of the material

Images