1) settling area
沉淀面积
2) deposition-precipitation
沉积-沉淀
1.
It had been found that gold that highly dispersed over a series of Ti-containing supports by the deposition-precipitation method could catalyze vapor phase propylene epoxidation in H_2-O_2 mixture.
近来发现采用沉积-沉淀法将金高度分散在一些含钛物质表面上时,能够催化 H_2-O_2-丙烯气相体系直接合成 PO。
2.
The pure mesoporous TiO_2 and doped mesoporous TiO_2 by La~(3+) or Ce~(3+) were synthesized by using poly(alkylene oxide)triblock copolymer (designated EO20PO70EO20; P123) as the organic template, which were used as supports to prepare the corresponding supported catalysts by the deposition-precipitation method.
采用三嵌段共聚物聚乙醚-聚丙醚-聚乙醚(EO20PO70EO20,P123)为有机模板剂合成了介孔TiO_2及原位掺杂La~(3+)和Ce~(3+)的介孔TiO_2载体,用沉积-沉淀法制备出一系列负载型Au/TiO_2及掺杂La~(3+)和Ce~(3+)的Au/TiO_2催化剂。
3.
1、The support TiO_2 was synthesized by sol-gel method, and a series of Au/TiO_2 catalysts were prepared by the deposition-precipitation method.
1、以溶胶-凝胶法制备的TiO_2为载体,用沉积-沉淀法制备出一系列Au/TiO_2,考察了焙烧温度、金的负载量、反应液pH值及沉淀剂等制备因素对催化剂活性的影响。
3) lodge
[英][lɔdʒ] [美][lɑdʒ]
沉淀，积聚
4) settling matter
沉淀[积]物
5) fouling
[英][faul] [美][faʊl]
积垢沉淀
1.
Roughness growing resulted from compressor blade fouling causing performance deterioration was investigated quantitatively by simulation method.
基于等价雷诺数修正原理,通过仿真方法定量研究了压气机叶片由于积垢沉淀等因素引起粗糙度增大,从而导致其性能的衰退情况。
2.
There are many factors leading to the aero-engine performance declination,especially roughness increase caused by the lamina fouling is a typical reason.
导致航空发动机性能衰退的形式有很多种,其中由积垢沉淀因素造成的叶片粗糙度增大是具有代表性的原因。
6) deposition-precipitation
沉积-沉淀法
1.
5% Au/Fe2O3 was prepared by co-precipitation,deposition-precipitation and impregnation separately.
采用共沉淀法、沉积-沉淀法和浸渍法制备了1。
2.
ZrO2 support and Au/ZrO2 catalyst were prepared by aqueous solution precipitation and deposition-precipitation method, respectively.
采用水溶液沉淀和沉积-沉淀法分别制备了ZrO2载体及相应的Au/ZrO2催化剂,通过CO氧化反应考察了载体的制备条件、催化剂的焙烧温度和预处理温度对催化剂活性的影响;通过X射线衍射、氢程序升温还原(H2-TPR)、X射线光电子能谱(XPS)表征,分析了影响催化剂活性的原因。
3.
Some oxides(Al2O3,SiO2,TiO2,MgO)and H-ZSM-5 zeolite were used as supports to prepare Au catalysts by deposition-precipitation(DP)with urea as a precipitator.
选择不同氧化物(Al2O3,SiO2,TiO2,MgO)和H-ZSM-5分子筛作为载体,以尿素为沉淀剂,采用沉积-沉淀法制备了一系列负载型金催化剂。
补充资料：比表面积
分子式：
CAS号：
性质：单位体积或单位质量固体的表面积，通常用1g固体的总表面积表示。由于制备条件的不同，固体与气相接触的表面大小可有很大差异。多孔性和细碎性固体的表面积包括内表面和外表面，内表面由其内部孔隙和裂缝缝隙面积构成，外表面是固体外部的几何面积，二者之和为总表面积。比表面通常用物理吸附法测定，如BET容量法、重量法、流动色谱法等。有时也可用液相吸附法测定。对比表面大于1m2/g的样品常用低温氮吸附容量法或流动法，而小表面则用低温氪吸附法。对于非孔性固体，也可根据测出的粒子大小计算比表面。
CAS号：
性质：单位体积或单位质量固体的表面积，通常用1g固体的总表面积表示。由于制备条件的不同，固体与气相接触的表面大小可有很大差异。多孔性和细碎性固体的表面积包括内表面和外表面，内表面由其内部孔隙和裂缝缝隙面积构成，外表面是固体外部的几何面积，二者之和为总表面积。比表面通常用物理吸附法测定，如BET容量法、重量法、流动色谱法等。有时也可用液相吸附法测定。对比表面大于1m2/g的样品常用低温氮吸附容量法或流动法，而小表面则用低温氪吸附法。对于非孔性固体，也可根据测出的粒子大小计算比表面。
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