1) three-way catalyst
三效催化剂
1.
Research and development of oxygen storage materials for three-way catalyst;
三效催化剂用储氧材料的研究进展
2.
Preparation and character of three-way catalyst by citric acid sol-gel method;
用柠檬酸溶胶-凝胶法制备三效催化剂
3.
This paper mainly introduces the operating principles of cerium oxide and cerium mixed oxide solid solution as oxygen storage materials in three-way catalysts of automobiles,and also demonstrates the effects of preparation methods on the structures and properties of the catalysts.
重点介绍了具有良好储氧能力的铈氧化物及其复合氧化物固溶体作为助剂在汽车尾气净化三效催化剂中的作用原理,阐述了制备方法对催化剂结构与性能的影响,综述了CeO2、CexZr1-xO2(CZ)和REyCexZr1-x-yO2(RECZ,RE=Rare Earths)等相关氧化物的研究进展,提出了该领域今后的研究重点和发展趋势。
2) three-way catalysts
三效催化剂
1.
Three specifications of the three-way catalysts(TWC)were prepared using an excellent Ceria-Zirconia solid solutions as oxygen storage materials to match the three vehicles made in China reaching the Eu III standard.
为配合3种国产车达到欧Ⅲ排放标准,以一种性能优异的铈锆固溶体作为储氧材料,制成3种规格的三效催化剂。
2.
4-x)Tb_(x)O_(2-y) of three-way catalysts(TWCs) were prepared by coprecipitation and sol-gel methods.
X射线衍射和拉曼光谱证实,形成的固溶体为萤石型立方相结构;X光电子能谱显示,固溶体表面Ce和Tb主要以Ce4+和Tb3+形式存在;粒度分布及透射电镜分析发现,制备的固溶体在液相中存在着严重的团聚现象;应用在含Pt、Rh和Pd(高比例Pd含量)的三效催化剂的制备。
3.
The three-way catalysts(TWCs) which were used widely in recent time are introduced;and the direction of development and problems to be solved in the future are also pointed out.
文章介绍了当今普遍使用的三效催化剂(TWCs-Three way Catalysts),提出了未来汽车尾气净化催化剂的发展趋势及需要解决的问题。
3) three way catalyst
三效催化剂
1.
95)+Al_2O_3 three way catalysts.
95)+Al_2O_3三效催化剂。
2.
The necessity and possibility to replace noble metal catalyst in the technology of automotive exhaust purification,and the role of composite oxide of rare earth and perovskite in the three way catalyst were reviewed.
阐述了汽车尾气净化工艺中替代贵金属催化剂的必要性和可能性，评述了稀土钙钛矿复合氧化物在三效催化剂中的作用，指出这类贱金属催化剂是研制、开发三效汽车排气催化剂的重要方向。
3.
Owing to shortage of noble metals, increasingly stringent regulations and disadvantages of conventional design methods of three way catalysts, a novel design method using artificial neural networks for three way catalysts containing Cex Zr1-x O2 was put forward.
提出一种含Cex Zr1-x O2的三效催化剂的设计方法,即利用人工神经网络来进行辅助设计。
4) three way catalysts
三效催化剂
1.
The present paper aims to introduce three way catalysts and its application in China.
三效催化剂是机外治理机动车尾气污染最常采用的有效方法,车用三效催化剂已发展到第4代。
2.
The three way catalysts promoters (Ce Zr)O 2, (Pr Ce Zr)O 2 and (Pr Zr)O 2 were prepared by sol gel method with some special procedures.
采用溶胶 凝胶法制备了三效催化剂助剂 (Ce Zr)O2 ,(Pr Ce Zr)O2 和 (Pr Zr)O2 ,并对它们进行了XRD ,EXAFS和BET比表面的测定。
3.
： In present paper, FTA was applied to analyze thermal de－ activation of Pd－ M1M2Ox/γ－ Al2O3 three way catalysts (TWC).
本文应用故障树分析原理，对钯－复合金属氧化物型三效催化剂的热失活原因进行了严密的逻辑分析，建立了相应的故障树。
5) TWC
三效催化剂
1.
1)O_2 were used to prepare the three-way catalyst(TWC)for the motorcycle exhaust gas and its influence on the performance of TWC was investigated.
将所制备的复合氧化物用于摩托车尾气净化三效催化剂,模拟摩托车尾气的组成,分别对Pt-Rh/Ce_(0。
2.
Three way catalyst(TWC) is the main method to purify the automobile exhaust,and has already been developed into its fourth generation by now.
三效催化剂是汽车尾气净化最主要的方法,目前已发展到第四代。
3.
This paper introduces the progress of catalysts for vehicle exhaust gas, the principle of three-way catalyst (TWC) and the components of catalysts for vehicle exhaust gas.
介绍了汽车尾气净化催化剂的发展过程、三效催化剂的净化原理以及催化剂的组成
6) Palladium three-way catalysts
钯三效催化剂
补充资料：三效催化器
三效催化器是同时可以降低CO、HC、NOX的催化转化器，主要由涂有贵金属铂（pt）、铑（Rh）、钯（pd）和其他一些催化剂的载体和壳体构成，另外还有垫层、隔热罩等部分。它只在发动机空燃比在理论空燃比附近时对CO、HC、NOX同时具有很高的转化效率，这需要对发动机的空燃比进行精确控制。三效催化器由于具有良好的转化性能，在汽车排气污染控制中得到广泛应用。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条