Microstructure evolution of room-temperature-sputtered ITO films suitable for silicon heterojunction solar cells

Thickness influence on structural, optical and electrical properties of sputtered indium tin oxide (ITO) with thickness ranging from 60 up to 430 nm films has been studied. At the increase of the film thickness crystallinity degree and grain size increased, whereas tensile structural distortion as well as resistivity decreased. It was observed that a microstructure evolution takes place: the initial amorphous layer evolved in polycrystalline phase, with a grain–subgrain surface morphology. Carrier concentration increased at the increase of the film thickness and a general relationship between electrical characteristics and structural distortion has been found. In thinner films larger tensile distortion allowed to include larger amount of interstitial O and/or Sn atoms in the lattice. An appreciable impact of the thickness was also observed on electro-optical properties in terms of changes in energy gap, resistivity and optical absorption. Silicon heterojunction solar cells have been produced and J_sc as high as 33.0 mA/cm² has been obtained.     

炭担载的Mo和CoMo加氢脱硫催化剂

用仲钼酸铵和酸钴水溶液浸渍方法将ＭｏＯ３和ＣｏＯ担载在少在性炭担体上，制成Ｍｏ／Ｃ和ＣｏＭｏ／Ｃ催化剂。运用ＤＴＡ，ＸＰＳ，ＦＴ－ＬＲＳ等手段考察了ＭｎＯ３在活性炭担体表面的分散状态及Ｈ２还原能力随ＭｏＯ３含量的变化，并在中压固定床反应装置上测定了催化剂的噻吩加氢脱硫和环己烯加氢反应活性。     

甲苯气相选择性氧化制苯甲醛 Ⅰ．V_2O_5／TiO_2－Al_2O_3催化剂研究

制备了一系列负载型Ｖ－Ｔｉ－Ａｌ－Ｏ催化剂并用于甲苯的气相选择性氧化制苯甲醛，考察了接触时间、氧浓度、Ｖ２Ｏ５负载量以及催化剂焙烧温度对反应性能的影响。用ＴＰＲ、ＸＲＤ和ＢＥＴ等测试手段，对催化剂进行了表征。研究发现，催化剂在７７３Ｋ时活化，接触时间１．２秒，氧浓度２１％时，可获得较好的反应结果，Ｖ２Ｏ５负载量为６（ｗｔ）％的催化剂，在５９３Ｋ时反应，得到了转化率２０．５％，苯甲醛产率８．３％的最好结果。     

环己酮肟在改性氧化锆催化剂上的Beckmann重排反应Ⅱ．影响重排反应的若干因素

环己酮肟在改性氧化锆催化剂上的Ｂｅｃｋｍａｎｎ重排反应Ⅱ．影响重排反应的若干因素程时标徐柏庆唐守平蒋山蔡天锡王祥生（大连理工大学化工学院化学系，大连１１６０１２）关键词氧化硼，氧化锆，负载型催化剂，环己酮肟，Ｂｅｃｋｍａｎｎ重排反应，己内酰胺前文［１...     

6，6＇－二（二苯基氧化膦甲基）－1，1＇－氮氧化－2，2＇－联吡啶与硝酸铒配合物的合成与结构

合成了硝酸铒与四功能团含磷萃取剂６，６＇－二（二苯基氧化膦甲基）－１，１＇－氮氧化－２，２＇－联吡啶的配合物。用四圆衍射仪测定了配合物的晶体结构。晶体属单斜晶系，空间群Ｃ２／ｃ，晶体学参数，ａ＝１．９８３０（４）ｎｍ，ｂ＝２．３１３５（４）ｎｍ，ｃ＝１．８６００（３）ｎｍ；β＝９６．１８（２）°，ｚ＝４。配合物中有机配体以四齿形式与中心离子铒配位，金属离子的配位数为８。配位几何构形为稍变形的四方反棱柱。金属离子周围的配位水分子已全部被取代。     

MoO_3（MOVS）系列催化剂上喹啉的加氯脱氮

将金属氧化物蒸汽合成法（ＭｅｔａｌＯｘｉｄｅＶａｐｏｕｒＳｙｎｔｈｅｓｉｓＭＯＶＳ）制各的Ｎｉ－Ｍｏ（ＭＯＶＳ）－Ｐ／Ａｌ２Ｏ３催化剂用于喹啉的加氧脱氮（ＨＤＮ）。结果表明，与常规方法制备的同类催化剂相比，ＭＯＶＳ催化剂具有较高的ＨＤＮ活性，主要表现在Ｃ－Ｎ键断裂和苯环加氢催化活性的提高。在负载高含量ＭｏＯ３方面，ＭＯＶＳ方法还有待进一步完善。文章还讨论了制备条件（酸度，载体种类等）对催化活性的影响。     

ICP－MS用于Eu_2O_3标准物质中铝和锌的定值分析

报道了用电感耦合等离子体质谱法测定氧比铕标准物质中Ａｌ_２Ｏ_３和ＺｎＯ的方法。考察了谱干扰和基体影响，采用Ｒｈ为内标较好地补偿了基体铕的影响。方法简便、快速，定值准确、可靠。     

Cr－Ag／γ－Al_2O_3催化剂在CO氧化反应中Ag的助催化作用

Ｃｒ－Ａｇ／γ－Ａｌ_２Ｏ_３催化剂在ＣＯ氧化反应中Ａｇ的助催化作用陈平，朱波，钟依均，罗孟飞，李少华，吴红丽（杭州大学催化研究所杭州３１００２８）（杭州大学中心实验室杭州）关键词氧化铬，氧化银，氧化铝，负载催化剂，还原特性，一氧化碳，氧化活性催化燃烧...     

A chromatographic comparison of the pore structure of zirconia high performance liquid chromatographic materials made by the polymerization induced colloidal aggregation and the Oil Emulsion methods

Summary The pore structures of zirconium oxide particles prepared by two different methods (PICA and Oil Emulsion processes) are compared. Nitrogen sorptometry and size exclusion chromatography are used to characterize the two different types of particles. Significant and unexpected differences were found in the accessible pore volumes and the bed packing densities of the two materials. The PICA material was found to have a higher totally included and totally excluded volume than would be normally expected. The chromatographic method provides results which are more useful for the application of these materials to separation sciences.