求关于Pt/Co/MgO多层膜或者MgO薄膜的文献

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求关于Pt/Co/MgO多层膜或者MgO薄膜的文献
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Cu对Pt/Cu-Mg-Al-O催化剂上NO_x储存性能的影响
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【英文篇名】 Influence of Cu on NO_x Storage Performance of Pt/Cu-Mg-Al-O Catalysts Derived from Hydrotalcites
【作者】 康守方; 蒋政; 郝郑平;
【英文作者】 KANG; Shou Fang JIANG; Zheng HAO; Zheng Ping（ Research Center for Eco Environmental Science; Chinese Academy of Sciences; Beijing 100085）;
, t8 d5 {( C5 L& I! Z【作者单位】 中国科学院生态环境研究中心;
$ G- j5 \& I/ V2 I/ }0 o【刊名】 物理化学学报 , Acta Physico-chimica Sinica, 编辑部邮箱 2005年 03期  
期刊荣誉：中文核心期刊要目总览  ASPT来源刊  CJFD收录刊
, h& u& E3 \7 C# h【关键词】 氮氧化物; 水滑石; NO_x储存; 贫燃; Pt/Cu-Mg-Al-O;
【英文关键词】 Nitrogen oxide; Hydrotalcite; NOx storage; Lean burn; Pt/Cu Mg Al O;
【摘要】 固定二价与三价阳离子摩尔比为3∶1,采用共沉淀法合成系列Cu-Mg-Al水滑石,经500℃焙烧制成复合氧化物Cu-Mg-Al-O(wCuO(%)分别为0、5、10、20,简称w-CMAO,w=0、5、10、20).通过浸渍法制备Pt/Cu-Mg-Al-O负载型复合氧化物催化剂.XRD结果表明Cu在催化剂及其前驱体中高度分散.采用等温NOx储存实验研究催化剂对NOx的储存性能,NOx-TPD法考察储存的NOx脱附情况.实验结果表明,尽管Cu取代减少了催化剂中MgO含量,但增强了催化剂的NO氧化活性,有效提高了催化剂的NOx储存性能.同时TPD结果进一步表明当CuO掺杂量在w=(10～20)%时,可以明显降低催化剂上生成的硝酸盐的分解温度.
【英文摘要】 A series of Cu Mg Al hydrotalcite compounds with M (II) :Al(III) molar ratio of 3 :1 were prepared by co precipitation method.Corresponding mixed oxides were obtained after calcination 500 ℃ ( wCuO(% )= 0,5,10,20,denoted as w CMAO,w=0,5,10,20) .Pt/Cu Mg Al O catalysts were prepared by impregnation with H2PtCl6 solution.XRD results showed that Cu was well dispersed in the catalysts and their precursors.NOx storage performance was investigated using NOx adsorption experiment at constant te...

常压MOCVD制备MgO薄膜的研究
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: j( t" l# W  E' f【作者】 曾建明; 王弘; 尚淑霞;
5 `/ {  q( Y* u4 c2 L【作者单位】 山东大学晶体材料研究所;
【刊名】 功能材料 , JOURNAL OF FUNCTIONAL MATERIALS, 编辑部邮箱 1996年 04期  
$ y/ ~% e" Q1 P8 F2 G! @* }期刊荣誉：中文核心期刊要目总览  ASPT来源刊  中国期刊方阵  CJFD收录刊
2 C) b) |5 ^& u7 v. S【关键词】 MgO薄膜; 常压MOCVD; 铁电薄膜; NaCl型结构; 阻挡层; 快速退火;
【摘要】 本文首次报道用常压金属有机化学气相沉积（AP－MOCVD）在Si（100），SiO2／Si（100）和Pt／Si（100）衬底上外延高质量的MgO薄膜。研究了衬底温度与薄膜的取向性关系和MgO薄膜的潮解特性。高纯magnesiumacetylacetonate［bis（2，4－pentanetane－diono）magnesium］［Mg（CH2COCH2COCH3）2］作为金属有机源，扫描电镜（SEM），透射电镜（TEM）和X－RAY衍射实验显示，在较低的衬底温度（～480℃）下一次淀积成单晶膜。薄膜均匀，致密，结晶性和取向性很好，衬底温度（Ts）在400℃到680℃之间，在Si（100）衬底上生长的MgO薄膜都具有［100］取向，在Si（100）、SiO2／Si（100）和Pt／Si（100）衬底上生长的MgO薄膜也都具有［100］取向。

DFT Study of Metal Atoms Adsorbed at Low-coordinated Sites of MgO (001) Surface
9 ^- _  W2 C1 E0 z【英文作者】 XU Yi-Jun ZHANG Yong-Fan CHEN Wen-Kai LI Jun-Qian② （Department of Chemistry; Fuzhou University; Fuzhou; Fujian; State Key Laboratory of Structural Chemistry; China）;
6 ]. h! a7 L4 l( U3 ]% v【刊名】 结构化学 , Chinese Journal of Structural Chemistry, 编辑部邮箱 2003年 06期  
期刊荣誉：中文核心期刊要目总览  ASPT来源刊  中国期刊方阵  CJFD收录刊
7 ^  g& x3 r6 Q& z$ F+ d- ~' E【英文关键词】 DFT; metal atoms; low-coordinated sites; MgO （001） surface;
【英文摘要】 The adsorption of metal atoms, Ni, Pd, Pt, Cu, Ag and Au, at low-coordinated edge and corner oxygen sites of MgO (001) surface has been studied theoretically by using density functional method with cluster models embedded in a large array of point charges. For comparison, the interaction of metal atoms with perfect regular oxygen site of MgO (001) surface was also calculated. As regards these metal atoms adsorbed at perfect oxygen sites of MgO (001) surface, Cu, Ag and Au are very we...
【基金】 This research has been supported by the Foundation of State Key Laboratory of Structural Chemistry;; the National Natural Science Foundation of China (29973006) and Administration of Science and Technology of Fujian province (2001J018)
【DOI】 CNKI:ISSN:0254-5861.0.2003-06-013