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a ruo 2 Foamed nickel composite electrode and its preparation method and application

A composite electrode, nickel foam technology, applied in electrodes, electrolysis components, electrolysis process, etc., can solve the problems of complex treatment process and difficult removal, and achieve the effect of good cycle stability, less precious metal consumption and low price.

Active Publication Date: 2022-07-08
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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  • a ruo <sub>2</sub> Foamed nickel composite electrode and its preparation method and application
  • a ruo <sub>2</sub> Foamed nickel composite electrode and its preparation method and application
  • a ruo <sub>2</sub> Foamed nickel composite electrode and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A RuO 2 The preparation of foamed nickel composite electrode (ruthenium oxide content 0.19mg) includes the following steps:

[0029] 1) Accurately weigh 30 mg of ruthenium chloride and add it to 1 ml of n-butanol, then ultrasonically dissolve it for 10 minutes to obtain a ruthenium chloride-n-butanol solution for later use; after soaking the foamed nickel in dilute hydrochloric acid with a concentration of 0.5% for 10 min, the foam The nickel is taken out and the residual hydrochloric acid on its surface is rinsed with water and dried to obtain a clean foamed nickel for later use;

[0030] 2) Use a pipette to take 10 μL of the ruthenium chloride-n-butanol solution obtained in step 1) and apply it to a clean 1*1 cm2 nickel foam, and then calcine it in a muffle furnace at high temperature in an air environment. The process is as follows: in an air environment, the temperature is uniformly heated from room temperature to 450 °C at a rate of 5 °C / min, the constant temperat...

Embodiment 2

[0032] A RuO 2 The preparation of foamed nickel composite electrode (ruthenium oxide content 0.38mg) includes the following steps:

[0033] 1) Accurately weigh 30 mg of ruthenium chloride and add it to 1 ml of n-butanol, then ultrasonically dissolve it for 10 minutes to obtain a ruthenium chloride-n-butanol solution for later use; after soaking the foamed nickel in dilute hydrochloric acid with a concentration of 0.5% for 10 min, the foam The nickel is taken out and the residual hydrochloric acid on its surface is rinsed with water and dried to obtain a clean foamed nickel for later use;

[0034] 2) Use a pipette to take 20 μL of the ruthenium chloride-n-butanol solution obtained in step 1) and apply it to the cleaned 1*1 cm2 nickel foam, and then calcine it in a muffle furnace at high temperature in an air environment. The process is as follows: in an air environment, the temperature is uniformly heated from room temperature to 450 °C at a rate of 5 °C / min, the constant temp...

Embodiment 3

[0037] A RuO 2 The preparation of foamed nickel composite electrode (ruthenium oxide content 0.57mg) includes the following steps:

[0038]1) Accurately weigh 30 mg of ruthenium chloride and add it to 1 ml of n-butanol, and then ultrasonically dissolve it for 10 minutes to obtain a ruthenium chloride-n-butanol solution for later use; after soaking the foamed nickel in dilute hydrochloric acid with a concentration of 0.5% for 10 minutes, the foam The nickel is taken out, and the residual hydrochloric acid on its surface is rinsed with water and dried to obtain a clean foamed nickel for later use;

[0039] 2) Use a pipette to take 30 μL of the ruthenium chloride-n-butanol solution obtained in step 1) and apply it to a clean 1*1 cm2 nickel foam, and then calcine it in a muffle furnace at high temperature in an air environment. The process is as follows: in the air environment, the temperature is uniformly heated from room temperature to 450 °C at a rate of 5 °C / min, the constant...

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Abstract

The invention discloses a RuO 2 Foamed nickel composite electrode and its preparation method and application, the composite electrode of the present invention is made of RuO 2 is the active component, RuO 2 Supported on nickel foam carrier, RuO supported on nickel foam per square centimeter 2 The content is between 0.19mg-0.57mg. The composite electrode of the present invention is used as a working electrode for electrolysis of heavy water to produce deuterium gas, and the electrolysis process is mainly a process of electrolysis of heavy water in a typical three-electrode system. The electrolysis process of the invention is streamlined and efficient, pure deuterium gas can be rapidly generated, the preparation of the composite electrode is completed in one step, and the prepared composite electrode has good stability.

Description

technical field [0001] The invention belongs to the technical field of material preparation and application, in particular to a RuO 2 Foamed nickel composite electrode and preparation method and application thereof. Background technique [0002] Deuterium is an isotope of hydrogen with the chemical symbol D or 2H. Deuterium gas is a colorless and odorless flammable gas at room temperature. Its abundance on the earth is 0.015%. Its content in common hydrogen is very small, and mostly heavy water D 2 O, the form of deuterium oxide, exists in seawater and ordinary water. Deuterium is an isotope of hydrogen, also known as heavy hydrogen, which consists of one proton, one neutron and one electron. Deuterium was discovered in liquid hydrogen by American H.C. Yuri and F.G. Brickveld in 1931. The mass concentration of deuterium in seawater is about 30 mg / L. As an isotope of hydrogen, deuterium has a wide range of applications in military, nuclear energy and optical fiber manufac...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C25B1/01C25B11/031C25B11/052C25B11/061C25B11/075C23C18/12
CPCC25B1/00C23C18/1216Y02E60/36
Inventor 王建国季文凯包志康张世杰丁磊
Owner ZHEJIANG UNIV OF TECH
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