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RuO2 foamed nickel composite electrode, and preparation method and application thereof

A composite electrode and nickel foam technology, which is applied in the direction of electrodes, electrolytic components, electrolytic process, etc., can solve the problems of complicated processing technology and difficult removal, and achieve the effects of good cycle stability, less precious metal consumption, and low price

Active Publication Date: 2021-07-06
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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  • RuO2 foamed nickel composite electrode, and preparation method and application thereof
  • RuO2 foamed nickel composite electrode, and preparation method and application thereof
  • RuO2 foamed nickel composite electrode, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] a RuO 2 The preparation of foam nickel composite electrode (ruthenium oxide content 0.19mg) comprises the following steps:

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

[0030] 2) Use a pipette gun to take 10 μL of the ruthenium chloride-n-butanol solution obtained in step 1) and drop-coat it on the cleaned 1*1 cm2 nickel foam, and then calcinate it in a muffle furnace at a high temperature in an air environment. The process is: in the air environment, the temperature is raised from room temperature to 450 °C at a rate of 5 °C / min at a constant r...

Embodiment 2

[0032] a RuO 2 The preparation of foam nickel composite electrode (ruthenium oxide content 0.38mg) comprises the following steps:

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

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

Embodiment 3

[0037] a RuO 2 The preparation of foam nickel composite electrode (ruthenium oxide content 0.57mg) comprises the following steps:

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

[0039] 2) Use a pipette gun to take 30 μL of the ruthenium chloride-n-butanol solution obtained in step 1) and drop-coat it on the cleaned 1*1 cm2 nickel foam, and then calcinate it in a muffle furnace at a high temperature in an air environment. The process is: in the air environment, the temperature is raised from room temperature to 450 °C at a rate of 5 °C / min at a constant ra...

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Abstract

The invention discloses a RuO2 foamed nickel composite electrode, and a preparation method and application thereof. RuO2 is used as an active component of the composite electrode, RuO2 is loaded on a foamed nickel carrier, and the content of RuO2 loaded on foamed nickel per square centimeter ranges from 0.19 mg to 0.57 mg. The composite electrode serves as a working electrode to be used for electrolyzing heavy water to prepare deuterium gas, and the electrolysis process is mainly a typical heavy water electrolysis process of a three-electrode system. The electrolysis process is simple and efficient, pure deuterium gas can be rapidly generated, preparation of the composite electrode is completed in one step, and meanwhile 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 Foam nickel composite electrode and its preparation method and application. Background technique [0002] Deuterium is an isotope of hydrogen, and its chemical symbol is D or 2H. At room temperature, deuterium is a colorless, odorless, flammable gas. The abundance on the earth is 0.015%. Its content in ordinary hydrogen is very small, and 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 a proton, a neutron and an electron. In 1931, H.C. Urie and F.G. Brickveld in the United States discovered deuterium in liquid hydrogen. The mass concentration of deuterium in seawater is about 30mg / L. As an isotope of hydrogen, deuterium has a wide range of applications in military, nuclear energy and optical fiber manufacturing. [0003] At pres...

Claims

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Application Information

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Patent Type & Authority Applications(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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