1) Trinuclear catalysts
三核催化剂
2) nucleic acid catalysts
核酸催化剂
1.
In recent years, great progress has been made through the development of novel chemically modified nucleotides with improved properties, such as enhanced serum stability, higher target affinity and low toxicity, in the research of antisense oligonucleotides and nucleic acid catalysts.
经恰当修饰的反义寡核苷酸和核酸催化剂可以提高其血浆稳定性和靶向亲和性,并且降低其细胞毒性。
3) binuclear catalysts
双核催化剂
4) nucleophilic catalyst
亲核催化剂
1.
Chiral 4-dimethylaminopyridine (DMAP) derivatives have been employed in catalytic asymmet- ric reactions as chiral nucleophilic catalysts with excellent activity and enantioselectivity.
手性4-二甲胺基吡啶(DMAP,4-Dimethylaminopyridine)衍生物作为具有较高催化活性和对映选择性的新型手性亲核催化剂,已经在多种不对称催化反应中得到应用,并取得了很好的研究成果。
5) 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。
6) 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。
补充资料：催化重整催化剂
分子式：
CAS号：
性质：使石油烃类分子结构重排所用的催化剂。由载体、金属组分和酸性组分构成。载体有氧化铝型、硅铝型和分子筛型(结晶型)，常用的是氧化铝型。按金属组分有单胶型和加有第二种金属的双金属型(如铂-铼、铂-锡型等)或多金属型(如铂-铼-铝型、铂-铼-钛型等)酸性组分有氟-氯型和全氯型。目前这种催化剂有单铂、铂-铱、铂-铼、铂-锡四大系列。他们都具有双功能，既具有脱氢、加氢活性，又具有异构化、加氢裂化活性。前一功能一般由铂来承担，后一功能由载体或加到载体上酸性组分来承担。由于具有这两种功能，在重整反应中才能使甲基环戊烷异构脱氢转化成苯。
CAS号：
性质：使石油烃类分子结构重排所用的催化剂。由载体、金属组分和酸性组分构成。载体有氧化铝型、硅铝型和分子筛型(结晶型)，常用的是氧化铝型。按金属组分有单胶型和加有第二种金属的双金属型(如铂-铼、铂-锡型等)或多金属型(如铂-铼-铝型、铂-铼-钛型等)酸性组分有氟-氯型和全氯型。目前这种催化剂有单铂、铂-铱、铂-铼、铂-锡四大系列。他们都具有双功能，既具有脱氢、加氢活性，又具有异构化、加氢裂化活性。前一功能一般由铂来承担，后一功能由载体或加到载体上酸性组分来承担。由于具有这两种功能，在重整反应中才能使甲基环戊烷异构脱氢转化成苯。
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