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Rare-earth oxide supported platinum and ruthenium bimetal hydrophobic catalyst and preparation method and application thereof

A technology of rare earth oxides and bimetals, applied in the field of hydrogen-water isotope exchange catalysts, can solve the problems of low catalytic performance and poor economic efficiency, and achieve the effects of good catalytic performance, good stability and outstanding economic efficiency

Inactive Publication Date: 2019-05-31
MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem solved by the present invention is to provide a rare earth oxide-supported platinum-ruthenium bimetallic hydrophobic catalyst to solve the problems of low catalytic performance and poor economic efficiency in the prior art

Method used

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  • Rare-earth oxide supported platinum and ruthenium bimetal hydrophobic catalyst and preparation method and application thereof
  • Rare-earth oxide supported platinum and ruthenium bimetal hydrophobic catalyst and preparation method and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] This example discloses the preparation method of the rare earth oxide-supported platinum-ruthenium bimetallic hydrophobic catalyst of the present invention, specifically:

[0037] Step 1. Preparation of rare earth oxides loaded with platinum-ruthenium bimetals: add chloroplatinic acid hydrate to deionized water to prepare an aqueous solution of chloroplatinic acid with a platinum ion concentration of 0.01mol / L, and add ruthenium chloride to deionized water to prepare Become the ruthenium chloride aqueous solution that ruthenium ion concentration is 0.01mol / L;

[0038] Measure the chloroplatinic acid aqueous solution and the ruthenium chloride aqueous solution according to the volume ratio of the chloroplatinic acid aqueous solution: the ruthenium chloride aqueous solution being 2:1, and mix them uniformly to obtain a mixed aqueous solution.

[0039] A certain amount of cerium oxide was weighed, and the mixed aqueous solution was added according to the loading amount of ...

Embodiment 2

[0044] This example discloses the preparation method of the rare earth oxide-supported platinum-ruthenium bimetallic hydrophobic catalyst of the present invention, specifically:

[0045] Step 1. Preparation of rare earth oxides loaded with platinum-ruthenium bimetals: add chloroplatinic acid hydrate to deionized water to prepare an aqueous solution of chloroplatinic acid with a platinum ion concentration of 0.1mol / L, and add ruthenium chloride to deionized water to prepare Become the ruthenium chloride aqueous solution that ruthenium ion concentration is 0.1mol / L;

[0046] Measure the chloroplatinic acid aqueous solution and the ruthenium chloride aqueous solution according to the volume ratio of chloroplatinic acid aqueous solution: ruthenium chloride aqueous solution is 1:1, and mix them uniformly to obtain a mixed aqueous solution.

[0047] A certain amount of ceria is weighed, and the mixed aqueous solution is added according to the loading amount of platinum being 0.1 wt%...

Embodiment 3

[0052] This example discloses the preparation method of the rare earth oxide-supported platinum-ruthenium bimetallic hydrophobic catalyst of the present invention, specifically:

[0053] Step 1. Preparation of rare earth oxides loaded with platinum-ruthenium bimetals: add chloroplatinic acid hydrate to deionized water to prepare an aqueous solution of chloroplatinic acid with a platinum ion concentration of 0.05mol / L, and add ruthenium chloride to deionized water to prepare Become the ruthenium chloride aqueous solution that ruthenium ion concentration is 0.05mol / L;

[0054] Measure the chloroplatinic acid aqueous solution and the ruthenium chloride aqueous solution at a volume ratio of chloroplatinic acid aqueous solution: ruthenium chloride aqueous solution of 10:1, and mix them uniformly to obtain a mixed aqueous solution.

[0055] A certain amount of ceria was weighed, and the mixed aqueous solution was added according to the loading amount of platinum being 10wt% of the m...

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Abstract

The invention discloses a rare-earth oxide supported platinum and ruthenium bimetal hydrophobic catalyst and a preparation method and application thereof and solves the problem that the prior art haslow catalytic performance and poor economic performance. The rare-earth oxide supported platinum-ruthenium bimetal hydrophobic catalyst is characterized in that a rare-earth oxide that supports platinum and ruthenium is used as an active component, polytetrafluoroethylene is used as a binder and hydrophobic medium, and a metal fiber felt is used as a supporter; in the rare-earth oxide that supports platinum and ruthenium, platinum supporting capacity is 0.1-10% by weight, and atom ratio of ruthenium to platinum is 1:(1-10); the weight ratio of the rare-earth oxide that supports platinum and ruthenium to the polytetrafluoroethylene is 1:(1-4); in the catalyst by 100% mass, the metal fiber felt accounts for 30-70%. The design herein is scientific, the preparation method is simple, and the catalyst of the invention has excellent catalytic performance and good economic performance.

Description

technical field [0001] The invention belongs to the technical field of hydrogen-water isotope exchange catalysts, and in particular relates to a rare earth oxide-supported platinum-ruthenium bimetallic hydrophobic catalyst and its preparation method and application. Background technique [0002] Vigorously developing nuclear power is a strategic choice made by my country to reduce dependence on fossil energy and ensure national energy security. However, the operation of nuclear facilities such as nuclear reactors (including various types of fission reactors and fusion reactors planned in the future) and spent fuel reprocessing plants will produce a large amount of tritiated wastewater (including HTO, DTO or T 2 O). Compared with gaseous tritium, the toxicity of tritiated water to living organisms will be significantly increased by about 25000 times. In view of the radioactive hazards of tritium-containing water, for tritium-containing light water (such as wastewater produc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/63G21F9/06
Inventor 罗军洪曾甯王劲川姚伟志喻彬安永涛陈闽郭莉
Owner MATERIAL INST OF CHINA ACADEMY OF ENG PHYSICS
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