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Co-based catalyst and application thereof

A catalyst and sulfide technology, applied in the direction of electrodes, electrolysis process, electrolysis components, etc., can solve the problems of complicated treatment process and difficult removal, and achieve the effect of good cycle stability, good mechanical strength and low price

Active Publication Date: 2021-07-02
ZHEJIANG UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The focus of purification is to remove impurities and reduce the hydrogen isotope contained in deuterium gas, that is, impurity protium, but it is difficult to remove protium, and the treatment process is very complicated

Method used

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  • Co-based catalyst and application thereof
  • Co-based catalyst and application thereof
  • Co-based catalyst and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Example 1: The preparation method of a CO based catalyst (cobalt nitrate and sulfur feed ratio of 0.19: 1) is as follows:

[0027] Accurately weigh 0.095 nitrate cobalt in a mortar, adding 0.5 g of sulfur powder, then add 1 ml of anhydrous ethanol in a mortar, sufficiently polishing, until the grinding dry (absolute ethanol is volatilized during grinding) . The sample after grinding drying was placed in a vacuum oven at 60 ° C for 12h, and finally the completely dried powder was placed in a tube furnace, in N 2 Under the atmosphere, the temperature increased from the temperature of 5 ° C / min at a temperature of 5 ° C / min, then held at a constant temperature at 450 ° C, and finally cooled to room temperature, and the product in the mortar was uniform, that is, the CO group catalyst was obtained.

Embodiment 2

[0028] Example 2: The preparation method of a CO based catalyst (cobalt nitrate and sulfur feed ratio of 0.38: 1) is as follows:

[0029] Accurately weighed 0.190 g of cobalt nitrate in a mortar, and 0.5 g of sulfur was added thereto, then 1 ml of anhydrous ethanol was added to the mortar, and sufficiently polishing is carried out until the grinding dries (absolute ethanol during the grinding process. ). The sample after grinding drying was placed in a vacuum oven at 60 ° C for 12h, and finally the completely dried powder was placed in a tube furnace, in N 2 Under the atmosphere, the temperature increased from the temperature of 5 ° C / min at a temperature of 5 ° C / min, then held at a constant temperature at 450 ° C, and finally cooled to room temperature, and the product in the mortar was uniform, that is, the CO group catalyst was obtained. Example 2 SEM map of the CO base catalyst prepared figure 1 Indicated.

Embodiment 3

[0030] Example 3: The preparation method of a CO based catalyst (cobalt nitrate and sulfur feed ratio of 0.57: 1) is as follows:

[0031] Accurately weigh 0.285 g of cobalt nitrate in a mortar, then weigh 0.5 g of sulfur powder, then add 1 ml of anhydrous ethanol in a mortar, sufficiently polishing, until the grinding dry (absolute ethanol is volatilized during grinding) ). The sample after grinding drying was placed in a vacuum oven at 60 ° C for 12h, and finally the completely dried powder was placed in a tube furnace, in N 2 Under the atmosphere, the temperature increased from the temperature of 5 ° C / min at a temperature of 5 ° C / min, then held at a constant temperature at 450 ° C, and finally cooled to room temperature, and the product in the mortar was uniform, that is, the CO group catalyst was obtained.

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Abstract

The invention discloses a Co-based catalyst and application thereof. The Co-based catalyst takes cobalt sulfide as an active ingredient, and a preparation method of the Co-based catalyst comprises the steps that taking cobalt nitrate and powdered sulfur as raw material precursors, mixing the cobalt nitrate and the powdered sulfur, then adding a proper amount of absolute ethyl alcohol for infiltration, then carrying out sufficient grinding so that ethyl alcohol in the mixture is volatilized and dried, drying in a drying oven for a period of time to obtain completely dried mixed powder, placing the completely dried mixed powder in a tubular furnace, carrying out high-temperature calcination in an N2 atmosphere, cooling the calcined product, and fully grinding to obtain the Co-based catalyst. The Co-based catalyst is prepared in one step, the preparation method is simple and efficient, a composite electrode formed by coating the Co-based catalyst on an electrode can be applied to preparation of deuterium gas through electrolysis of heavy water, the electrolysis process is simple and efficient, pure deuterium gas can be rapidly generated, and the catalyst has good stability in the electrolysis process.

Description

Technical field [0001] The present invention belongs to the manufacture of material preparation and application, and in particular, the present invention relates to a CO based catalyst and its application thereof. Background technique [0002] Hydrium is the isotope of hydrogen, twice a total amount of normal hydrogen, the chemical properties of 氘 气, the same, all chemical reactions that can occur in ordinary hydrogen can occur, and the corresponding compound can be produced. [0003] At present, the preparation technology of deuterium is mainly liquid hydrogen rectification technology, electrolysis and heavy water technology, metal hydride technology, laser technology, gas chromatography, etc., wherein electrolytic re-water technology uses an electrolytic water device, which is electrolyte according to an alkali metal. Solid polymer electrolysis weight, although the purity of 气 is highly purified by this technique, but still requires further purification of the prepared qi. The ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B1/04C25B11/075
CPCC25B1/04Y02E60/36
Inventor 王建国季文凯包志康张世杰丁磊
Owner ZHEJIANG UNIV OF TECH
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