Porous platinum preparation method and application of porous platinum

Abstract

The invention relates to a porous platinum preparation method and application of porous platinum. The preparation method provided by the invention comprises the following steps that metal platinum andmetal low in melting and boiling point are put into a vacuum furnace, a vacuum condition is kept, after heating at the low temperature is conducted for a period of time, the temperature is increased,vacuum is kept, and then the porous platinum can be obtained. According to the method, platinum alloy smelting and porous platinum preparing are integrated, no pilot process is needed, the operationcan be completed on the same equipment, thus, the cost can be reduced, in addition, metal oxidization can be avoided, and the platinum purity is improved; the porosity of the porous platinum can be changed by adjusting and controlling the temperature and time, the prepared porous platinum is uniform in pore diameter distribution, controllable in size and high in porosity, and accordingly, requirements in different fields are met; and elements which are low in melting and boiling point and are obtained through high temperature evaporation can be recycled, accordingly, wasting and polluting areavoided, and the material utilization rate is increased.

Description

technical field [0001] The invention belongs to the field of platinum catalyst preparation, and in particular relates to a preparation method of porous platinum, a porous platinum material prepared by the method, and an application in the field of catalysts. Background technique [0002] The information disclosed in this background section is only intended to increase the understanding of the general background of the present invention, and is not necessarily taken as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to those skilled in the art. [0003] Platinum-based catalysts have beneficial catalytic properties and are widely used in energy, engineering, and industrial production. For example: catalysis of fuel cells, purification of automobile exhaust, hydrogen production by electrolysis of water, etc. [0004] In recent years, research on platinum-based catalysts has focused on improving their effective utilizatio...

AI Technical Summary

Problems solved by technology

However, due to the complicated preparation process, dangerous chemical reagents are often used in the preparation process, which limits the application of porous platinum catalysts. Therefore, it is particularly critical to develop a simple method for the preparation of porous platinum.

Images