Ruthenium sulfide composite material and preparation method and applications thereof

A composite material, ruthenium sulfide technology, applied in electrolytic components, electrodes, electrolytic process, etc., can solve the problems that cannot meet the requirements of industrial applications, large-scale application limitations, catalytic performance attenuation, etc., and achieve unique and ingenious preparation methods and low prices , the effect of improving stability

Active Publication Date: 2018-11-16
BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, platinum-based materials are currently the most widely used electrode catalyst materials in the electrolytic water hydrogen production industry. Due to the limited reserves and high price of platinum, its large-scale application is limited.
Non-precious metal materials are abundant and cheap. In the past ten years, researchers have made a lot of efforts to replace platinum-based materials with non-precious metal materials, but most of the non-precious metal materials can only be used under one condition (such as in work under one of the conditions of nature, acidity or alkalinity) and the stability is not good, the catalytic performance decays extremely fast, and the hydrogen evolution efficiency is low, so the current non-precious metal catalysts cannot meet the requirements of industrial applications.

Method used

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  • Ruthenium sulfide composite material and preparation method and applications thereof
  • Ruthenium sulfide composite material and preparation method and applications thereof
  • Ruthenium sulfide composite material and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Prepare 40 milliliters of an aqueous solution containing 0.5 mmol / L of ruthenium chloride and 10 mmol / L of thioacetamide, add it to the reaction kettle, then add 20 mg of graphene powder into the reaction kettle, and stir evenly. Then the reaction kettle was sealed, the temperature was raised to 150° C. and kept under autogenous pressure for 6 hours to carry out the solvothermal reaction. After the reaction is finished, it is naturally cooled, centrifuged, washed and dried to obtain a graphene-based ruthenium sulfide particle composite material.

[0037] The obtained ruthenium sulfide particle composite material transmission electron microscope picture sees attached figure 2 , and its electron diffraction pattern is shown in the appendix image 3 , and its elemental distribution diagram is shown in the appendix Figure 4 , and its XRD spectrum is shown in the attached Figure 5 . From figure 2 It can be seen that the ruthenium sulfide particles are evenly distrib...

Embodiment 2

[0039] Referring to the method in Example 1, the thioacetamide was replaced with thiourea, and the solvothermal reaction conditions were changed to: the temperature was 150° C., and the reaction time was 6 hours.

[0040] The transmission electron microscope photo of the obtained ruthenium sulfide particle composite material is referring to the attached Figure 6 .

Embodiment 3

[0042] Referring to the method in Example 1, the water was replaced with ethanol, and the solvothermal reaction conditions were changed to: the temperature was 150° C., and the reaction time was 6 hours.

[0043] The transmission electron microscope photo of the obtained ruthenium sulfide particle composite material is referring to the attached Figure 7 .

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PUM

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Abstract

The invention discloses a ruthenium sulfide composite material, which comprises a conductive substrate material and ruthenium sulfide particles growing on the conductive substrate material. The invention also discloses a preparation method and an application of the ruthenium sulfide composite material as a cathode material in water electrolysis to prepare hydrogen.

Description

technical field [0001] The invention belongs to the technical field of inorganic advanced materials, and in particular relates to a preparation method and application of a ruthenium sulfide particle composite material. Background technique [0002] The continuous development and utilization of fossil resources has accelerated the development of society, brought a lot of benefits to people, and also posed a huge challenge to the sustainable development of society. Energy crisis, environmental pollution and other problems are aggravating day by day, making people have to vigorously develop clean energy. As a new type of clean energy, hydrogen energy has attracted widespread attention due to its advantages of high storage energy density, zero carbon dioxide emissions, and large reserves on the earth. The process of hydrogen production by electrolysis of water is simple and the technical route is mature. It is a reliable method for mass production of hydrogen energy. However, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C25B11/08C25B1/04
CPCC25B1/04C25B11/043C25B11/081Y02E60/36
Inventor 孙晓明李鹏松邝允
Owner BEIJING UNIV OF CHEM TECH
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