Preparation method of Ru/C nano-assembly

A nano-assembly, solid matter technology, applied in chemical instruments and methods, electrolytic components, chemical/physical processes, etc., can solve the problems of low catalytic efficiency, low reserves and high cost of electrochemical reactions, and achieve excellent catalytic stability. Effect

Active Publication Date: 2019-03-08
HARBIN INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The present invention aims to solve the technical problems of low catalytic efficiency, low storage capacity and high cost of existing catalysts for electrochemical reactions, and provides a method for preparing Ru / C nano-assemblies

Method used

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  • Preparation method of Ru/C nano-assembly
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  • Preparation method of Ru/C nano-assembly

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specific Embodiment approach 1

[0070] Specific embodiment one: the preparation method of a kind of Ru / C nano assembly of this embodiment, carry out according to the following steps:

[0071] 1. RuCl 3 ·xH 2 O was dissolved in acetic acid aqueous solution and magnetically stirred to obtain a uniform brown solution A,

[0072] 2. Dissolve 1,3,5-trimesic acid in absolute ethanol and stir magnetically to obtain a clear and transparent solution B;

[0073] 3. Pour the solution B obtained in step 2 into the solution A obtained in step 1, stir evenly with magnetic force, then transfer it to a polytetrafluoroethylene reactor, control the temperature at 160°C-180°C, keep it for 24-72h, and the reaction is over Afterwards, the product was naturally cooled to room temperature, and centrifuged to obtain a solid substance;

[0074] 4. Use deionized water and ethanol to wash the solid matter obtained in step 3 multiple times, and then dry it to obtain a Ru / C nanoassembly with a sponge-like structure, and the chemical ...

specific Embodiment approach 2

[0075] Specific embodiment two: the difference between this embodiment and specific embodiment one is: in step one, RuCl 3 ·xH 2 The concentration of O is 0.1-0.5 mol / L. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0076] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: in step one, RuCl 3 ·xH 2 The concentration of O is 0.357mol / L. Others are the same as in the first or second embodiment.

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Abstract

The invention provides a preparation method of a Ru / C nano-assembly, relates to the field of preparation methods of noble metal modified carbon nanocomposites and aims to solve the technical problemsthat the conventional catalyst has lower catalytic efficiency on an electrochemical reaction, low storage amount and high cost. According to the method, in a manner of synthesizing Ru-MOF with a KUST-1-like structure, RuCl3.xH2O, 1,3,5-trimesic acid, acetic acid, ethanol and water are mixed and subjected to a high-temperature one-step hydrothermal process to directly obtain the Ru / C nano-assembly.The catalyst has good catalytic activity for hydrogen precipitation and oxidation. The method is used for preparing the Ru / C nano-assembly, and the prepared material is applied to hydrogen evolutionby water electrolysis and hydrogen oxidation of a fuel cell anode.

Description

technical field [0001] The invention relates to the field of preparation methods of noble metal modified carbon nanocomposite materials. Background technique [0002] In today's society, human development is closely related to energy. In the past two centuries, human energy supply has mainly relied on non-renewable fossil fuels such as oil and natural gas. However, with the depletion of consuming energy such as oil and coal and many environmental problems caused by burning fossil fuels, such as global warming, air and water pollution, etc., it is imminent to find a new green and recyclable energy source. Among the many energy sources, hydrogen energy stands out. It has the advantages of high combustion calorific value, non-polluting combustion, abundant raw materials, convenient storage and transportation, etc. It is a very competitive clean energy. Among various hydrogen production methods, hydrogen production by electrolysis of water is currently the most ideal hydrogen ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J31/02C25B1/04C25B11/06
CPCB01J31/0202C25B1/04C25B11/04Y02E60/36
Inventor 徐平李昱芝张彬杜耘辰韩喜江
Owner HARBIN INST OF TECH
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