Method for preparing co/al2o3/stainless steel monolithic catalyst by combining anodic oxidation and electroplating

Abstract

The invention relates to a method for preparing a Co / Al2O3 / stainless steel integral catalyst by combining anode oxidation with electroplating. The method comprises the following specific steps: I. carrying out stainless steel alumetizing; II. preparing a catalyst carrier by means of anode oxidation; and III. electroplating active components of the catalyst. According to the prepared catalyst carrier, the growth direction is controllable, and the amount of loaded active components is controllable. The prepared carrier has the advantages of high porosity, uniform pore canal structure, proper pore diameter, large specific surface area, high adhesion and the like; the loading amount of the loaded catalyst active components is large, and the bonding force between the catalyst and the catalyst active components is great; the method has wide application prospects on the aspects of Fischer-Tropsch synthesis, photocatalysis, automobile tail gas purification and the like.

Description

【Technical field】 [0001] The invention relates to the field of catalyst carrier preparation, in particular, it is a substrate rich in Al element, and the method of in-situ anodic oxidation prepares Al with high adhesion, high porosity and high specific surface area. 2 o 3 Catalyst carrier, and then electroplating to load active components to prepare a monolithic catalyst; specifically, it is a combination of anodic oxidation and electroplating to prepare Co / Al 2 o 3 / Stainless steel monolithic catalyst method. 【Background technique】 [0002] In industrial applications, the commonly used industrial catalysts are generally packed in granular form. Due to the uneven distribution of catalysts in this form, it is easy to have disadvantages such as large pressure drop and high heat transfer resistance of the catalyst bed. In order to overcome the defects of particulate catalyst supports, researchers have begun to pay attention to monolithic catalysts in recent years. Monolithi...

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