Preparation method of porous ruthenium dioxide-cerium dioxide microsphere composite material
A technology of ruthenium dioxide and ceria, which is applied in the field of preparation of porous ruthenium dioxide-ceria microsphere composite materials, can solve the problems of low yield and low product quality, achieve simple preparation methods and improve catalytic activity , the effect of improving transfer efficiency
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0028] This embodiment includes the following steps:
[0029] Step 1. Put RuCl 3 , RuCl 3 and NH 4 Cl is dissolved in deionized water to obtain a mixed salt solution; the solute RuCl in the mixed salt solution 3 , RuCl 3 and NH 4The total mass concentration of Cl is 10 g / L, and NH 4 The mass of Cl is 20% of the total mass of the solute, and the molar ratio of ruthenium to cerium is 3:10;
[0030] Step 2, adding the mixed salt solution obtained in step 1 into a spray dryer at a constant feeding rate for atomization drying to obtain mixed salt powder; the feeding rate of the mixed salt solution is 150 mL / h, and the atomization drying The temperature is 250℃;
[0031] Step 3: Put the mixed salt powder obtained in Step 2 into a tube furnace for calcination and oxidation treatment to obtain a porous ruthenium dioxide-ceria microsphere composite material; the process of the calcination and oxidation treatment is as follows: in an air atmosphere , heated to 650°C at a rate of...
Embodiment 2
[0036] This embodiment includes the following steps:
[0037] Step 1. Put RuCl 3 , Ce(NO 3 ) 3 and NH 4 Cl is dissolved in deionized water to obtain a mixed salt solution; the solute RuCl in the mixed salt solution 3 , Ce(NO 3 ) 3 and NH 4 The total mass concentration of Cl is 5 g / L, and NH 4 The mass of Cl is 20% of the total mass of the solute, and the molar ratio of ruthenium to cerium is 1:1;
[0038] Step 2, adding the mixed salt solution obtained in step 1 into a spray dryer at a constant feed rate for atomization drying to obtain mixed salt powder; the feed rate of the mixed salt solution is 250 mL / h, and the atomization drying The temperature is 300℃;
[0039] Step 3: Put the mixed salt powder obtained in Step 2 into a tube furnace for calcination and oxidation treatment to obtain a porous ruthenium dioxide-ceria microsphere composite material; the process of the calcination and oxidation treatment is as follows: in an air atmosphere , heated to 650°C at a ra...
Embodiment 3
[0041] This embodiment includes the following steps:
[0042] Step 1. Put RuCl 3 , Ce(NO 3 ) 3 and NH 4 Cl is dissolved in deionized water to obtain a mixed salt solution; the solute RuCl in the mixed salt solution 3 , Ce(NO 3 ) 3 and NH 4 The total mass concentration of Cl is 40 g / L, and NH 4 The mass of Cl is 20% of the total mass of the solute, and the molar ratio of ruthenium to cerium is 1:7;
[0043] Step 2, adding the mixed salt solution obtained in step 1 into a spray dryer at a constant feeding rate for atomization drying to obtain mixed salt powder; the feeding rate of the mixed salt solution is 50 mL / h, and the atomization drying The temperature is 200℃;
[0044] Step 3: Put the mixed salt powder obtained in Step 2 into a tube furnace for calcination and oxidation treatment to obtain a porous ruthenium dioxide-ceria microsphere composite material; the process of the calcination and oxidation treatment is as follows: in an air atmosphere , heated to 650°C a...
PUM
Property | Measurement | Unit |
---|---|---|
Particle size | aaaaa | aaaaa |
Specific surface area | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com