基于超分子有机凝胶的纳米复合材料

基于超分子有机凝胶的纳米复合材料是集有机和纳米材料优异性能于一体的新型智能材料, 已成为近年来功能复合材料的研究热点之一。本文综述了该类复合材料的研究现状, 包括超分子有机凝胶分别与无机纳米粒子、金属纳米粒子以及碳纳米管等材料的复合, 分别从其模板效应、制备方法等方面进行介绍。纳米复合材料丰富的结构受控于超分子丰富的簇集体形貌, 这种模板效应主要依赖于超分子有机凝胶特有的三维网络结构, 其为纳米粒子成核、生长、排列等提供了优良的载体环境, 可以有效避免纳米粒子的团聚, 从而提高纳米粒子的稳定性, 并展望了该类材料在催化、传感、生物以及医学等领域的发展前景。     

偶联剂对制备环氧-低熔点金属复合材料的影响

通过相反转法制备环氧-低熔点金属复合材料。采用偶联剂改善了低熔点金属在基体中的分散性,利用扫描电子显微镜和数字电桥研究了金属粒子分散性对复合材料结构和性能的影响。结果表明,采用相反转法和合适的偶联剂能使低熔点金属均匀地分散在环氧树脂基体中,有效地增加复合材料的介电性能。     

碳纤维的制造方法及其应用、以及催化剂制造用印墨

提供一种碳纤维的制造方法及其应用、以及催化剂制造用印墨。该催化剂制造用印墨在衬底上涂敷后可稳定地形成金属粒子，该金属粒子用作适于使碳纤维生长的催化剂。该催化剂制造用印墨以水或有机溶剂为主溶剂，是包含有机金属化合物和水溶性高分子化合物的溶液，该有机金属化合物包含选自Pd、Fe、Co和Ni中的任一种金属。     

氢气刻蚀法制备Pt/CNTs复合材料及其热稳定性

采用碳化硅高温热分解法制备整齐排列的直立碳纳米管阵列,并对其进行Pt金属粒子修饰,通过氢气刻蚀法可以将闭口碳纳米管阵列开口,并将Pt纳米粒子嵌入到碳纳米管中。这种新型Pt/CNTs复合材料具有独特的电子限域效应,有助于抑制金属催化剂的烧结,对提高其后续催化活性和应用性能有着重要意义。     

纳米材料改性酚醛树脂研究进展

综述了近年来纳米材料改性酚醛树脂(PF)的研究现状。介绍了不同纳米材料(包括碳纳米管、纳米炭黑、纳米碳纤维、纳米金属粒子、纳米弹性粒子、纳米黏土、纳米SiO2和纳米TiO2等)对PF复合材料性能的影响。探讨了纳米材料在改性PF过程中存在的问题,并对纳米材料改性PF的发展趋势作出了展望。     

磁性金属有机框架材料制备及吸附性能研究

利用简单的溶剂热法合成了MIL-101（Fe）/CoFe₂O₄和MIL-101（Fe）/NiFe₂O₄磁性金属有机框架纳米复合材料。通过X射线衍射仪（XRD）、扫描电子显微镜（SEM）、振动磁强计（VSM）、热重分析仪（TGA）和紫外可见分光光度计（UV）等对复合材料的相结构、形貌、磁性能和吸附性能进行了研究。将磁性金属有机框架材料用于吸附污水中罗丹明B（RhB）,研究了罗丹明B初始质量浓度对复合材料吸附能力的影响。结果表明,制备的磁性金属有机框架复合材料的形貌均匀、结晶度高,具有高的饱和磁化强度。复合物具有金属有机框架材料和磁性材料的双重优点。MIL-101（Fe）/CoFe₂O₄对罗丹明B有较高的吸附能力（97.3 mg/g）。热力学研究发现吸附等温方程符合Langmuir模型,吸附动力学研究表明吸附机制与吸附质和吸附剂有关。磁性金属有机框架纳米复合材料作为污水处理剂将具有广阔的应用前景。     

硅烷偶联剂在有机——无机杂化纳米复合材料中的应用

复合化是现代材料发展的趋势。有机一无机杂化纳米材料是复合材料家族中最耀眼的新星。有机一无机杂化纳米复合材料并不是有机相与无机相的简单加合．而是有机相和无机相在纳米至亚微米级范围内结合形成的。其中。有机相可以是塑料、橡胶等高分子材料；无机相可以是金属、氧化物、陶瓷、半导体等。     

核壳型石墨烯金属纳米复合材料的研究进展

介绍了石墨烯、石墨烯复合材料及核壳型石墨烯金属纳米复合材料的性质及用途,分析了核壳型石墨烯金属纳米复合材料在小分子生物、电化学、催化、防腐、吸附、导热材料等领域的应用前景,综述了核壳结构的石墨烯金属纳米复合材料的研究进展、合成方法及应用机理,展望了核壳型石墨烯金属纳米复合材料在处理水体污染和电化学传感器检测领域的发展前景。     

有机聚合物／无机化合物纳米复合阻燃材料研究进展

综述了有机聚合物／无机化合物纳米复合阻燃材料的研究和应用现状。阐述的纳米复合阻燃材料包括有机聚合物／层状硅酸盐纳米复合材料、有机聚合物／碳纳米管纳米复合材料、有机聚合物／二氧化硅纳米复合材料、有机聚合物／石墨纳米复合材料等。与传统无机阻燃剂填充阻燃材料相比,这类新型纳米复合阻燃材料的填料与基体的亲合性、基体的物理力学性能和阻燃性能等均得到改善。     

Progress of metallic nanoparticles catalysts in Ullmann reaction

因纳米金属粒子具有大的表面积和高的反应活性,因此作为新型的催化剂在有机合成领域得到了越来越多的应用.主要从C-C键、C-N键、C-O键和C-S键的形成角度,概括了各种金属纳米粒子催化乌尔曼反应的研究进展     

含磺酸金属-有机配合物的研究

金属—有机配合物是目前功能配合物研究的热点。本文简述了磺酸的配位化学及含磺酸的金属有机配合物的研究概况,介绍了目前研究最多的几种含磺酸的金属—有机配合物,并对含磺酸的金属有机配合物的研究前景作了展望。     

金属有机化合物的制备技术

金属有机化合物对水和空气敏感,因此对于有金属有机化合物参与的反应,从仪器、反应物、溶剂都要进行无水无氧处理,而且反应和产物的后处理也必须在无水无氧条件下进行,掌握金属有机化合物制备的方法 -Schlenk技术是制备金属有机化合物的重点。     

含磺酸金属一有机配合物的研究

金属一有机配合物是目前功能配合物研究的热点。本文简述了磺酸的配位化学及含磺酸的金属有机配合物的研究概况，介绍了目前研究最多的几种含磺酸的金属一有机配合物，并对含磺酸的金属有机配合物的研究前景作了展望。     

Supported Catalysts Obtained by Interaction of Organometallic Compounds of Transition Elements with Oxide Supports

Rapid development of organometallic chemistry of transition elements in recent years has greatly influenced homogeneous catalysis. Many organometallic compounds of transition metals have been directly used as effective catalysts; e.g., π-ally1 complexes of transition elements for diene reactions [1–3], carbonyl complexes for hydroformilation [4], and cyclopentadienyl and arene complexes for hydrogenation [5]. The study of stoichiometric reactions of organometallic compounds was also of great importance for homogeneous catalysis as individual organometallic compounds of various classes represent the analogs of intermediate species formed in the process of catalytic reactions (e.g., π-complexes and σ-organometallic compounds [6–8] in various reactions where the original catalyst is not an organometallic compound).     

Organometallic chemistry in non-classical environments

A summary of our on-going research on organometallic chemistry is provided with an emphasis on the function, reactivity and mechanisms of organometallic compounds in water, ionic liquids and in living systems. The role of organometallic compounds in both catalysis and medicinal chemistry are briefly described.     

Supported Catalysts Obtained by Interaction of Organometallic Compounds of Transition Elements with Oxide Supports

Rapid development of organometallic chemistry of transition elements in recent years has greatly influenced homogeneous catalysis. Many organometallic compounds of transition metals have been directly used as effective catalysts; e.g., π-ally1 complexes of transition elements for diene reactions [1-3], carbonyl complexes for hydroformilation [4], and cyclopentadienyl and arene complexes for hydrogenation [5]. The study of stoichiometric reactions of organometallic compounds was also of great importance for homogeneous catalysis as individual organometallic compounds of various classes represent the analogs of intermediate species formed in the process of catalytic reactions (e.g., π-complexes and σ-organometallic compounds [6-8] in various reactions where the original catalyst is not an organometallic compound).     

高纯金属有机化合物研究新进展

本文介绍了制备化合物半导体材料用的金属有机化合物的合成、提纯、分析及其应用新进展。     

Organometallic Compounds: An Opportunity for Chemical Biology?

Organometallic compounds are renowned for their remarkable applications in the field of catalysis, but much less is known about their potential in chemical biology. Indeed, such compounds have long been considered to be either unstable under physiological conditions or cytotoxic. As a consequence, little attention has been paid to their possible utilisation for biological purposes. Because of their outstanding physicochemical properties, which include chemical stability, structural diversity and unique photo- and electrochemical properties, however, organometallic compounds have the ability to play a leading role in the field of chemical biology. Indeed, remarkable examples of the use of such compounds-notably as enzyme inhibitors and as luminescent agents-have recently been reported. Here we summarise recent advances in the use of organometallic compounds for chemical biology purposes, an area that we define as "organometallic chemical biology". We also demonstrate that these recent discoveries are only a beginning and that many other organometallic complexes are likely to be found useful in this field of research in the near future.     

有机多核杂环化合物研究进展

综述有机硼、有机硅、有机锡及有机金属环状化合物的合成和性质。     

Tailored production of nanostructured metal/carbon foam by laser ablation of selected organometallic precursors

Aromatic, triphenylphosphine-containing organometallic compounds, as well as non-aromatic organometallic targets, were irradiated with a Nd:YAG laser to study the role of the metals and ligands used on the structure of the resulting materials. Characterization shows that the composition, metal nanoparticle dilution and crystallite size, and structure of the carbon foams (CFs) produced can be tailored by choosing the metals and ligands of the irradiated targets. The results indicate that precursors containing triphenylphosphine ligands tend to yield larger amounts of ablation products in which graphitic structures are observed in appreciably larger quantities. Electron microscopy reveals that these CFs are multi-component materials that consist of metal nanoparticles embedded in amorphous carbon aggregates, amorphous carbon nanoparticles, and graphitic nanostructures, which can be eventually observed as independent, separate components in the produced soots. The graphitic structures observed can also be produced by laser ablation of triphenylphosphine, indicating that their growth is not promoted by the metals of the chosen aromatic organometallic compounds.