A kind of preparation method and application of porous platinum
A platinum powder and catalyst technology, which is applied in the field of platinum catalyst preparation, can solve the problems of dangerous chemical reagents, limit the application of porous platinum catalyst, and complicated preparation process, and achieve the effects of avoiding waste pollution, controllable size, and uniform pore size distribution
Active Publication Date: 2022-01-14
SHANDONG UNIV
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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.
Method used
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Embodiment 1
[0031] A preparation method of porous platinum, comprising the following steps: take 1g of platinum powder and 1g of copper powder, heat under vacuum at 1700°C for 2h, then heat at 2800°C for 0.5h, and cool to room temperature to obtain porous platinum.
Embodiment 2
[0033] A preparation method of porous platinum, comprising the following steps: take 1g of platinum powder and 5g of nickel powder, heat at 1900°C for 4h under vacuum, then heat at 2700°C for 2h, and cool to room temperature to obtain porous platinum.
Embodiment 3
[0035] A method for preparing porous platinum, comprising the following steps: take 1g of platinum powder and 0.5g of aluminum powder, heat under vacuum conditions at 1600°C for 10h, then heat at 2500°C for 0.6h, and cool to room temperature to obtain porous platinum .
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The invention specifically relates to a preparation method and application of porous platinum. The preparation method provided by the invention comprises the following steps: putting metal platinum and metals with low melting and boiling points into a vacuum furnace, maintaining vacuum conditions, heating at a low temperature for a certain period of time, and then raising the temperature and continuing the vacuum to obtain porous platinum. In the present invention, the smelting of platinum alloy and the preparation of porous platinum are integrated, without intermediate process, and can be completed on the same equipment, which can not only reduce the cost, but also avoid metal oxidation and improve the purity of platinum; The porosity of porous platinum can be changed by adjusting the temperature and time, and the prepared pore size distribution is uniform, the size is controllable, and the porosity is high, so as to meet the needs of different fields; the low melting and boiling point elements evaporated at high temperature can be recycled to avoid waste. pollution and improve material utilization.
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...
Claims
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IPC IPC(8): C22C3/00C22C1/08B01J23/42B01J35/10
CPCC22C3/005C22C1/08B01J23/42B01J35/60
Inventor 冯金奎安永灵田园
Owner SHANDONG UNIV