Catalyst and coating material for automobile tail gas purification and preparation methods therefor and application therefor
A catalyst coating, automobile exhaust technology, applied in physical/chemical process catalysts, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc., can solve the problem of high cost of coating manufacturing and achieve manufacturing costs Low, excellent effect, high load effect
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment 1
[0031] The coating material (catalyst) that is used for automobile exhaust purification is prepared according to the following steps:
[0032] (1) Preparation of oxygen storage layer material: Weigh 20g of cerium nitrate hexahydrate and 20g of lanthanum nitrate hexahydrate respectively in a beaker, dissolve it with 500ml of deionized water, stir evenly with a glass rod, and add 10ml of ethyl nitrate to it successively. Glycol and 15g citric acid, ultrasonically oscillate until a sol is formed; then weigh 60g of kaolin, pour it into the above sol, stir it evenly with a glass rod, put it in an oven for drying at 80°C, and place the obtained product in a crucible, 500 Calcined at ℃ for 2 hours to obtain the oxygen storage layer material;
[0033] (2) Preparation of catalytically active layer material: Weigh 26g of cobalt nitrate hexahydrate and place it in a beaker, dissolve it with 500ml of deionized water, stir evenly with a glass rod, add 10ml of ethylene glycol and 15g of cit...
Embodiment 2
[0036] The coating material (catalyst) that is used for automobile exhaust purification is prepared according to the following steps:
[0037] (1) Preparation of oxygen storage layer material: Weigh 40 g of cerium nitrate hexahydrate and place it in a beaker, dissolve it with 500 ml of deionized water, stir it evenly with a glass rod, add 6 ml of ethylene glycol and 17 g of citric acid successively, and ultrasonically Shake until a sol is formed; then weigh 30g of kaolin, pour it into the above sol, stir it evenly with a glass rod, put it in an oven to dry at 80°C, put the obtained product in a crucible, and calcinate at 400°C for 3 hours to obtain Oxygen storage layer material;
[0038] (2) Preparation of catalytically active layer material: take by weighing manganese nitrate tetrahydrate 11.25g and place it in a beaker, dissolve it with 500ml deionized water, after the glass rod is stirred evenly, add 5ml ethylene glycol and 8g citric acid therein successively, Ultrasonic v...
Embodiment 3
[0041] A catalyst coating material for automobile exhaust purification, consisting of an oxygen storage layer at the lower layer and a catalytically active layer at the upper layer; the oxygen storage layer is made of CeO 2 and La 2 o 3 Uniformly supported on kaolin, CeO 2 and La 2 o 3 The mass ratio of the sum of the two to kaolin is 2:1; the catalytically active layer is made of Co 2 o 3 Uniformly supported on kaolin, the Co 2 o 3 The mass ratio to kaolin is 1:1; the thickness ratio of the oxygen storage layer to the catalytic active layer is 1:1.
PUM
Property | Measurement | Unit |
---|---|---|
particle diameter | 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