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Fe(CN)_6^(3-/4-)在铂电极上氧化还原过程的表面拉曼光谱研究(英文)

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苏州大学学报（自然科学版） 1997年第2期13卷 101-105页

作者：顾仁敖姚建林田中群任斌苏州大学化学化工学院苏州215006 厦门大学固体表面物理化学国家重点实验室化学系厦门361005

本文运用共聚焦显微拉曼仪结合特殊的电极表面粗糙方法首次获得了Fe(CN)_6^(3-/4-)在铂电极表面氧化还原过程的拉曼光谱图。研究结果表明Fe(CN)_6^(3-)在电极表面的吸附能力比Fe(CN)^(4-)强,它们都是通过CN上的N原子和电极表面成键而发... 详细信息

本文运用共聚焦显微拉曼仪结合特殊的电极表面粗糙方法首次获得了Fe(CN)_6^(3-/4-)在铂电极表面氧化还原过程的拉曼光谱图。研究结果表明Fe(CN)_6^(3-)在电极表面的吸附能力比Fe(CN)^(4-)强,它们都是通过CN上的N原子和电极表面成键而发生化学吸附的。

关键词：铂电极氧化还原吸附散射谱铁配合物

Crystal Growth of Strongly Correlated Electronic Materials:Triplet Mixed Valence and Atomic-Scale p-n Junction

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Crystal Growth of Strongly Correlated Electronic Materials:T...

中国化学会第五届全国结构化学学术会议

作者： Shouhua Feng state key laboratory of Inorganic Synthesis and Preparative chemistry,College of chemistry,Jilin university,Changchun 130012,P.R.china

＜正＞Perovskite oxides conventionally exhibited high Tc superconducting and colossal *** search for new physical phenomena in solid state chemistry and physics is basically dependent upon tuning valence states and defects of solids which are sometimes related to electronic strong *** work emphasizes on the hydrothermal crystallization for creating complicated mixed valence states and

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Structure and multiferroic properties of Y-doped BiFeO3 ceramics

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Science Bulletin 2010年第Z1期 452-456页

作者： FENG BaoLin, XUE Hao & XIONG ZhaoXian Department of Materials Science and Engineering, College of Materials, xiamen university, xiamen 361.05, china

Bismuth ferrite, BiFeO3, is an important multiferroic material, which simultaneously exhibits ferroelectric ordering and antiferromagnetic ordering in bulk form. Samples of Bi1-xYxFeO3 (x=0, 0.05, 0.10, 0.15 and 0.20) were prepared by conventional solid state reaction. By X-ray diffraction and Raman scattering spectra, the crystal structures of the samples were identified as rhombohedral with R3c space group, in addition to a second phase at x≥0.05. Multiferroic properties of the samples were also measured. With the increasing of Y content, the relative dielectric constants of the samples increased gradually, while the loss tangents firstly decreased and then began to increase. Meanwhile, the saturation magnetization values were significantly enhanced, namely 0.1440, 0.7468, 1.9217, 3.3309 and 6.2774 emu/g at 300 K for x=0, 0.05, 0.10, 0.15 and 0.20, respectively.

关键词： multiferroic BiFeO3 Y2O3 doped

改进型XC502低压甲醇合成催化剂的研究 Ⅱ.催化剂的活性位

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天然气化工—C1化学与化工 1998年第3期23卷 16-19页

作者：杨意泉林仁存戴深峻方钦和张藩贤张鸿斌厦门大学化学系固体表面物理化学国家重点实验室

采用ＸＰＳ－Ａｕｇｅｒ、ＸＲＤ和ＦＴＩＲ等方法，对５组分Ｃｕ－Ｚｎ－Ａｌ－Ｍ１－Ｍ２改进ＸＣ５０２铜基低压甲醇合成催化剂进行了表征。ＸＰＳ－Ａｕｇｅｒ结果表明，ＸＣ５０２催化剂出现主峰为３３６．４ｅＶ（Ｃｕ＋），而Ｃ... 详细信息

采用ＸＰＳ－Ａｕｇｅｒ、ＸＲＤ和ＦＴＩＲ等方法，对５组分Ｃｕ－Ｚｎ－Ａｌ－Ｍ１－Ｍ２改进ＸＣ５０２铜基低压甲醇合成催化剂进行了表征。ＸＰＳ－Ａｕｇｅｒ结果表明，ＸＣ５０２催化剂出现主峰为３３６．４ｅＶ（Ｃｕ＋），而Ｃｕ－Ｚｎ－Ａｌ催化剂主峰为３３４．９ｅＶ（Ｃｕ０）；ＸＲＤ结果表明，两种工作态催化剂比氧化态新增峰的２θ分别为３６．５°（Ｃｕ＋）和４３．３°（Ｃｕ０），ＸＣ５０２催化剂这两峰的强度比Ｉ３６．５／Ｉ４３．３是Ｃｕ－Ｚｎ－Ａｌ催化剂的２．１倍，说明工作态ＸＣ５０２催化剂单位Ｃｕ０中的Ｃｕ＋含量比Ｃｕ－Ｚｎ－Ａｌ催化剂多；ＦＴＩＲ谱显示，ＸＣ５０２和Ｃｕ－Ｚｎ－Ａｌ两种工作态催化剂新增波数分别为６２２ｃｍ－１和６２７ｃｍ－１的振动峰，此新增峰可能是Ｃｕ＋－Ｏ或Ｃｕ＋－Ｏ－Ｚｎ２＋的振动峰。改进型铜基甲醇合成催化剂的活性位可能是Ｃｕ０－Ｃｕ＋－Ｏ－Ｚｎ２＋／Ａｌ２Ｏ３－ＭＯｘ。

关键词：甲醇合成低压铜基催化剂改进

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SERS能否成为通用性很强的技术(英文)

SERS能否成为通用性很强的技术(英文)

第十五届全国光散射学术会议

作者： J.F.Li,Y.F.Huang,Z.L.Yang,D.Y.Wu,B.Ren,Z.L.Wang,Z.Q.Tian (state key laboratory of physical chemistry of solid surfaces and College of chemistry and Chemical Engineering, xiamen university,xiamen,361.05,china,

SERS is a nano-scale phenomenon since the metal particles or surface structures responsible for the much enhanced Raman signal,*** to the detection level of single molecules,depend critically on the size,shape and inter-particle ***,the applications of SERS are limited by its lacking of substrate *** a few ’free-electron-like’ metals(mainly Au,Ag and Cu) can provide a large

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铈及氟铈联用对CaHPO_4·2H_2O在水溶液中的转化产物的影响

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中国稀土学报 2001年第4期19卷 316-319页

作者：陈菲冯祖德林昌健厦门大学材料科学与工程系

以XRD和IR为表征手段 ,以恒pH法为溶解实验方法 ,研究了 37℃下以铈单独处理和氟铈联用处理对二水磷酸氢钙 (CaHPO4 ·2H2 O ,DCPD)的水化产物及其溶解性质的影响。Ce3+ 不能促进DCPD向磷灰石转化 ,氟铈联用可加快DCPD的转化。随着Ce3+... 详细信息

以XRD和IR为表征手段 ,以恒pH法为溶解实验方法 ,研究了 37℃下以铈单独处理和氟铈联用处理对二水磷酸氢钙 (CaHPO4 ·2H2 O ,DCPD)的水化产物及其溶解性质的影响。Ce3+ 不能促进DCPD向磷灰石转化 ,氟铈联用可加快DCPD的转化。随着Ce3+ 浓度的提高 ,DCPD经含Ce溶液单独处理后的产物主要为CaHPO4 (DCPA) +Ce(PO4 )和Ce(PO4 )。DCPD经氟铈联用处理后的产物主要为DCPA +(Ca2 + ,Ce3+ ) 1 0 -x(PO4 ) 6 -yF2 (F Ce HAP) +Ce(PO4 )和F Ce HAP +Ce(PO4 )。经 1%CeCl3溶液单独处理后的DCPD的抗酸能力已有显著提高。氟铈联用促进溶解度更低的F Ce HAP的形成 ,因此效果优于铈单独处理 ,有可能成为一种有效的防龋方法。

关键词：稀土二水磷酸氢钙氟铈恒定pH法防龋转化产物溶解度

Facile Synthesis of Hollow Ni Submicrometer Spheres

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Facile Synthesis of Hollow Ni Submicrometer Spheres

International Symposium on physical chemistry of Surface Nanostructures and Related Nanomaterials

作者： Yong-Ye Liang, Jian-Chun Bao. Yu-Ying Feng, Zheng Xu, Ling Si, lie Zhang state key laboratory of Coordination chemistry, laboratory of solid state Microstructures, Nanjing university, Nanjing210093, china Labiratory of Materials Science, chemistry Department, Nanjing Normal university, Nanjing210097, china

Hollow cobalt submicrometer spheres have been prepared by controlling the redox reactionof CoCl with NaBH within the interface between the water and oil incyclohexane/water/polyglycol emulsion system at 60℃. The diameter of the hollow cobaltspheres is mainly in rang of 300～400 nm and the wall thickness is about 70±10 nm. It is moreinteresting that the wall of the Co spheres is composed of needle particles. Furthermore, based

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锗/硅异质纳米结构中空穴存储特性研究

物理学报 2004年第4期53卷 1211-1216页

作者：杨红官施毅闾锦濮林张荣郑有炓南京大学物理系固体微结构物理国家重点实验室南京210093

对p沟道锗硅异质纳米结构存储器空穴隧穿的物理过程作了详细的分析 ,并对器件的擦写和保留时间特性进行了数值模拟 .研究结果表明 :由于异质纳米结构的台阶状隧穿势垒和较高价带带边差的影响 ,与传统的硅纳米结构存储器和n沟道锗硅... 详细信息

对p沟道锗硅异质纳米结构存储器空穴隧穿的物理过程作了详细的分析 ,并对器件的擦写和保留时间特性进行了数值模拟 .研究结果表明 :由于异质纳米结构的台阶状隧穿势垒和较高价带带边差的影响 ,与传统的硅纳米结构存储器和n沟道锗硅异质纳米结构存储器相比 ,当前器件的保留时间分别提高到 10 8和 10 5 s以上 ,同时器件的擦写时间特性基本保持不变 .这种存储器结构单元有效地解决了快速擦写编程和长久存储之间的矛盾。

关键词：锗/硅异质结纳米结构存储器空穴存储数值模拟隧穿势垒器件结构

Applications of CD to Structural Characterization of Chiral Compounds

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Applications of CD to Structural Characterization of Chiral ...

中国化学会第五届全国结构化学学术会议

作者： Hui Zhang Leiqi Chen Lei Ding Fang Wang Yufen Zhao Department of chemistry and key laboratory for Chemical Biology of Fujian Province,College of chemistry and Chemical Engineering,xiamen university,361.05,Fujian

＜正＞Circular dichroism（CD）spectroscopy as an especial technique of fingerprint has all along played an important role in structural characterization of chiral compounds,which can provide useful information on the absolute configuration and conformation of chiral molecules,enantiomeric excess of the chiral substances and something about reaction *** a major tool in chiral solid-state chemistry,solid-state CD is currently attracting a great deal attention since it should offer invaluable spectral information unobtainable from solution CD;for example,of particular interest is an unusual conformation of chiral molecules that is unstable in *** solution and solid-state CD with UV-Vis spectra and other structural analysis including X-ray crystallographic data may gain a comprehensive insight into the details of the structural features, electronic levels and electronic transitions of chiral compounds.

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