Preparation method of catalyst-loaded alloy steel electrode plate

Abstract

The invention relates to a preparation method of a catalyst-loaded alloy steel electrode plate. The method comprises the following steps of: weighing alloy steel powder, nickel powder and ammonium molybdate, adding the alloy steel powder, the nickel powder and the ammonium molybdate into a beaker containing distilled water one by one, stirring, heating the beaker, continuously stirring until the water is completely evaporated to obtain dry solid powder, carrying out heat treatment on the solid powder under vacuum, cooling, pouring into a graphite mold, sintering, and then putting into a tubular furnace filled with hydrogen sulfide gas for heat treatment to obtain the catalyst-loaded alloy steel electrode plate. According to the invention, through temperature control, flow control, concentration control, high-temperature sintering and the like, the obtained alloy steel matrix is of a porous and loose microstructure, more catalyst reaction places can be provided, and therefore the catalytic efficiency of the material is optimized; and the method is simple in step, low in raw material cost and controllable in process, the obtained finished electrode has stable catalytic activity and good conductivity, machining can be completed to be made into various shapes to a certain extent, and large-scale production is expected to be achieved.

Description

technical field [0001] The invention relates to the technical field of preparation of catalytic materials, in particular to a preparation method of a catalyst-loaded alloy steel electrode plate, which belongs to a technical application of powder metallurgy preparation of catalytic materials. Background technique [0002] Today, with the vigorous development of the world economy, industry has promoted the progress of human civilization, but it has also led to a sharp increase in energy consumption. Among them, fossil energy is still the most important energy used at present. On the one hand, fossil energy reserves are limited and non-renewable; on the other hand, the consumption of fossil energy has brought ecological environmental pollution. With the gradual scarcity of oil resources and the increasingly serious environmental pollution, the healthy life of human beings has begun to be threatened. Therefore, it is imminent to seek clean and sustainable energy to reduce envir...

AI Technical Summary

Problems solved by technology

Hydrogen production by catalytic water splitting is an old and mature technology, but the current high-efficiency catalysts are mainly noble metal materials, which seriously restricts their large-scale industrial applications. It is of great significance to develop low-cost non-precious metal catalysts

[0003] The main problems of the research on non-precious metal catalysts at home and abroad can be summarized as follows: 1. Poor electrical conductivity

The catalysts prepared in the laboratory are mainly powders, lacking electric current collectors, and it is difficult to give full play to the catalytic performance of the materials

And the performance obtained is only small-scale performance, but if it is applied to engineering, its large-scale catalytic effect cannot be quantified purely based on small-scale calculations; 2. Small-scale

The catalysts prepared in the laboratory are mainly in small batches, the process is fine and complex, and the dominant phase such as 1T phase is less disturbed by external conditions, but its stability is difficult to guarantee in engineering production; 3. Poor mechanical strength

Although there are currently researches on self-supporting electrodes, the carriers used are carbon materials or flexible conductive materials, which have poor mechanical strength, are not conducive to handling and processing, and are not suitable for engineering production.

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