三效催化剂
- 网络three-way catalyst;twc;TWCs
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稀土铈对三效催化剂的改性作用表现在:在富燃和贫燃条件下起储存和释放氧的作用;
The effects of Ceria on the properties of TWC are discussed : oxygen storage and release under respective , lean and rich conditions ;
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CeO2-ZrO2-Y2O3复合氧化物的制备及其在三效催化剂中的应用
Preparation and Application in TWC of CeO_2-ZrO_2-Y_2O_3 Complex Oxide
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全Pd三效催化剂研究&涂层材料的研究
Study on palladium only three-way catalyst & study on coating materials
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Pd/γ-Al2O3三效催化剂中CeO2助剂的作用
Effect of Ceria on Pd / γ - Al_2O_3 Three-Way Catalysts
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对一种含Pd的三效催化剂进行实验室评估,并模拟了此催化剂的起燃过程。
A three-way catalyst including Pd is evaluated using test method and its light-off course is simulated .
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汽车冷启动时催化剂床层温度低,尾气中的CO和烃类不能被传统三效催化剂有效消除。
The conventional threeway catalysts are not efficient enough to remove the CO and hydrocarbons during vehicle coldstart period due to the low temperature of catalyst bed .
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K修饰的CZA载体对全钯三效催化剂性能的影响
Impact of Ce-Zr-Al Mixed Oxide Modified by Potassium on Pd-Only Three-Way Catalysts
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三效催化剂广泛的应用于汽车尾气净化以减少汽车尾气中CO、HC和NOx的排放。
Catalytic converters are widely used to reduce the amounts of nitrogen oxides , carbon monoxide and unburned hydrocarbons in automotive emissions .
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在这些方法中,钙钛矿型复合氧化物和NOx储存还原型三效催化剂是目前该领域的研究热点。
Of many fields , the perovskite-type-oxide and the NO_ x storage-reduction triple effect catalyst are the focus of the research .
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CexZr(1-x)O2固溶体对三效催化剂性能的影响
Influence of Ce_xZr_ ( 1-x ) O_2 Solid Solutions on the performance of Three-way catalyst
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含少量Ru、Rh、Pt等贵金属的稀土钙钛矿型氧化物有可能发展成实用的净化汽车尾气三效催化剂。
Ra re-earth-based perovskite oxides with lower Ru , Rh , and Pt contents are potential of practical three-way catalysts of purifying automotive exhaust .
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含CexZr(1-x)O2固溶体三效催化剂的制备及性能研究
Study of Preparation and Performance of Three-way Catalysts Containing Ce_xZr_ ( 1-x ) O_2 Solid Solutions
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CeO2用途广泛,尤其是作为储氧材料用于机动车尾气三效催化剂中。
Ceria is used widely in many fields , especially as the oxygen storage material in three way catalysts .
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将FD三效催化剂与国外现有的商品催化剂进行了比较,结果表明FD催化剂具有良好的初活性和优异的高温耐老化性能。
The comparison of FD catalyst with the oversea commercial catalysts shows that FD catalyst has good initial activity and excellent thermal aging resistance .
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含CexZr(1-x)O2三效催化剂设计的神经网络仿真与优化
Simulation and Optimization of Design of Three-Way Catalysts Containing Ce_x Zr_ ( 1-x ) O_2 by Using Neural Networks
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三效催化剂用CexZr(1-x)O2固溶体合成技术与储放氧性能研究进展
Progress of Synthesis Techniques and Oxygen Storage / Release Capacity ( OSC ) Property of Ce_xZr_ ( 1-x ) O_2 Solid Solution Used in Three Way Catalysts
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Ce-Zr-Ln固溶体改性的三效催化剂的设计和研究
Design and Study of Three-Way Catalysts Modified by Ce-Zr-Ln Solid Solutions
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NO与CO在PtRhPd及载体组成的三效催化剂上的氧化还原反应是控制汽车尾气对空气污染的一个关键反应。
The reaction of the reduction of NO and the oxidation of CO on three way catalyst which has been compounded by Pt , Rh , Pd and their supporters is an important reaction in the removal of NO and CO from exhaust fumes .
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(Ce-Zr-Pr)O2在三效催化剂中的应用
Effect of ( Ce-Zr-Pr ) O_2 on Three-Way Catalyst
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由于柴油机尾气的富氧环境,传统三效催化剂(TWC)对其仅表现出较低的脱硝活性,达不到相关排放法规的要求。
But the traditional three-way catalysts ( 1only show a lower de-NOx activity in the oxygen-rich environment of ( vehicle exhausts , and thus can not achieve the requirements of the rel (?)
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和含Ce0.50Zr0.50O2的三效催化剂相比,含CeO2-ZrO2-Y2O3的三效催化剂经高温老化后,C3H8,CO,NO仍具有较高的转化率和较低的起燃温度。
After aging at 1000 ℃, the catalyst containing Ce_ 0.35Zr _ 0.55Y _ 0.10 still shows higher conversion of C_3H_8 , CO and NO and lower light-off temperature in comparison with Ce_ 0.50Zr _ 0.50O_2 TWC .
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三角孔堇菁石蜂窝陶瓷载体催化剂采用双层设计概念来提高Pd三效催化剂的性能,其中第一层含Pd,第二层含Pd和CeO2,每层都使用氧化铝为载体并加入碱土金属作稳定剂。
The catalyst adops two-layer design concept to improve the performance of Pd three-way catalyst . The first layer contains Pd and the second layer bears Pd and CeO2 , with each layer taking aluminum oxide as substance and adding alkaline-earth metal for the stabilizer .
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改性Cu-Mn-Ce-O三效催化剂的制备及其性能研究
Study on the Preparation of Modified Cu - Mn - Ce - O three - effect Catalysts and Their Properties
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日益严格的尾气排放标准对三效催化剂(TWCs)的设计提出了更高的要求。
To meet the increasingly strict regulations for automotive exhaust emissions , fundamental studies of the three-way catalysts ( TWCs ) are highly demanded .
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近年来,烃类选择还原(HC-SCR)氮氧化物被认为是继氨选择还原(NH3-SCR)过程及三效催化剂后最具发展前景的氮氧化物消除方法之一。
Recently , the selective catalytic reduction of nitrogen oxides with hydrocarbons is considered to be one of the most potential method to remove nitrogen oxides after the NH_3-SCR process and the three way catalysts .
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通过每老化25h后的性能测试,考察了催化剂性能随老化时间的变化特性。文中还提出了考察三效催化剂劣化强度的评价指标。
The aging process of catalyst was investigated by performance evaluations done every 25h in the course of aging test and the evaluation method of deactivation degree for three way catalyst was also presented .
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比较并详细分析了微波涂层(TC-B)与传统涂层(TC-A)在晶型、比表面积及三效催化剂活性上的差别。
Differences on specific area , crystal and catalytic activity between the microwave coating ( TC-B ) and the normal coating ( TC-A ) were tested and analyzed too .
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摩托车尾气净化三效催化剂的研究
Study on the Three-way Catalysts for Exhaust Gases Purification of Motorcycle
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用柠檬酸溶胶-凝胶法制备三效催化剂
Preparation and character of three-way catalyst by citric acid sol-gel method
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分光光度法测定三效催化剂浸渍液中的活性成分钯
Spectrophotometric Determination of Activated Palladium in the Soak Solution of Three-Efficacy Catalyst