三效催化剂是什么啊?

Three-way catalyst (TWC) is the control of vehicle exhaust pollution one of the most effective means.With the improvement of the quality of fuel,single-Pd three-way catalyst for its cheap and efficient catalytic activity of universal concern.Ce zirconium solid solution (CZ) because of the good performance of oxygen stored to be used in the three-way catalyst.In this paper,to 0.5 wt% Pd / Ce-Zr as catalyst,simulated automobile exhaust components,in response to different atmosphere (from the binary mixture to full-hybrid system,simulate the real situation of the automobile exhaust) that CO,HC and NOx conversion Rate data to study automobile exhaust components may arise between the response of the competition among the various responses and priorities,study Response Network.Evaluation of the three-way catalyst activity.This article is a catalyst for use by sol - gel method to cerium zirconium atoms than 0.67:0.33 for the preparation,such as volume impregnation load Pd,and fresh water samples were handled by the aging of the three samples.This was also inspected the samples stored oxygen performance and application XRD study sample surface crystalline structure and form,through the means of inspection BET analysis of samples of surface area.
Key words:Three-way catalyst; cerium zirconium solid solution; storage of oxygen; palladium; Response Network

2CO+2NO=催化剂=2CO2+N2

Three-way catalyst( TWC)s control one of the most valid meanses in the automobile tail spirit pollution currently.Along with the improvement of the fuel quantity,three effect catalysts of single Pd is cheap with it and efficiently of catalyst activity get the widespread concern.The Ce- Zr is solid to dissolve the body( CZ) because of it goodly keep to put the oxygen function to is made use of to three effect catalysts.This text with dissolve the gum- Gel gum legal system fully the CZ is solid to dissolve the body to carry the body,adoption etc.the physical volume immerses the legal system of Impregnation to have the Pd load to measure for 0.5% catalyst Pd/ Ce- Zr,and carry on the hot and aging processing of water to the fresh sample.Investigating the sample keeps to put the oxygen function,and apply the XRD research sample Crystalline structure mutually structure and the surface appearance,pass the ratio surface of the BET analysis means investigation sample,did the evaluation of the catalyst activity with the TWC.Do the catalyst with the Pd/ Ce- Zr,the usage TWC equipments imitates the automobile tail spirit to constitute,responding the atmosphere in the dissimilarity under( from two dollar mixture to whole hybrid system,imitate the true condition under of the automobile tail spirit) get a CO,HC and the NOx conversion rate data,analyze the competition relation between each reaction and have the initiative in proper order,study the reaction network.
Three-way catalyst三效催化剂
Ce zirconium solid solution铈锆固溶体
Storage of oxygen储放氧性能
Pd钯
Response Network反应网络