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991.
S. Cebulak B. Smieja-Król S. Duber M. Misz A. W. Morawski 《Journal of Thermal Analysis and Calorimetry》2004,77(1):201-206
The paper presents the applicability of Oxyreactive Thermal Analysis (OTA) for the investigation of different kinds of carbon
matter. For comparative reasons and more precise interpretation, along with OTA some physico-chemical properties of analyzed
materials were used as the methods commonly applied for the investigations.
The carbon materials of both natural (anthracites, graphite and diamonds) and synthetic origin (active carbon, glass carbon,
expanded graphite, soot and synthetic diamonds) were investigated.
It was stated that there is close relationship between structure parameters and physico-chemical properties and the thermal
reactivity within the investigated groups of carbon matters. The results show that OTA can be accepted as a good investigative
way for such materials.
This revised version was published online in July 2006 with corrections to the Cover Date. 相似文献
992.
Joseph R. Sootsman Duck Young Chung Dr. Mercouri G. Kanatzidis Prof. 《Angewandte Chemie (International ed. in English)》2009,48(46):8616-8639
Herein we cover the key concepts in the field of thermoelectric materials research, present the current understanding, and show the latest developments. Current research is aimed at increasing the thermoelectric figure of merit (ZT) by maximizing the power factor and/or minimizing the thermal conductivity. Attempts at maximizing the power factor include the development of new materials, optimization of existing materials by doping, and the exploration of nanoscale materials. The minimization of the thermal conductivity can come through solid‐solution alloying, use of materials with intrinsically low thermal conductivity, and nanostructuring. Herein we describe the most promising bulk materials with emphasis on results from the last decade. Single‐phase bulk materials are discussed in terms of chemistry, crystal structure, physical properties, and optimization of thermoelectric performance. The new opportunities for enhanced performance bulk nanostructured composite materials are examined and a look into the not so distant future is attempted. 相似文献
993.
Juan‐José Cid Dr. Miguel García‐Iglesias Jun‐Ho Yum Dr. Amparo Forneli Josep Albero Eugenia Martínez‐Ferrero Dr. Purificación Vázquez Prof. Michael Grätzel Prof. Mohammad K. Nazeeruddin Prof. Emilio Palomares Prof. Tomás Torres Prof. 《Chemistry (Weinheim an der Bergstrasse, Germany)》2009,15(20):5130-5137
Let it shine! The impact of the anchoring group on photovoltaic performance by a series of phthalocyanine sensitisers (see figure) has been demonstrated.
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Vergara J Barberá J Serrano JL Ros MB Sebastián N de la Fuente R López DO Fernández G Sánchez L Martín N 《Angewandte Chemie (International ed. in English)》2011,50(52):12523-12528
What a core-ker! By the appropriate combination of promesogenic bent-core structures and the C(60) unit, lamellar polar liquid-crystal phases were induced. The supramolecular organization of the functional fullerene-based assemblies, the temperature range of the soft phase, the stabilization of the mesophase-like order at room temperature, and the molecular switching under an electric field can be tuned, depending on the molecular structure. 相似文献
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以共沉淀法制备出Fe3O4纳米粒子,通过聚乙烯亚胺(PEI)修饰Fe3O4纳米粒子,再原位复合上Au纳米粒子,制得Fe3O4/PEI/Au纳米颗粒微球。再将Fe3O4/PEI/Au纳米颗粒与巯基乙酸修饰的量子点CdSe/CdS连接,成功制备了Fe3O4/PEI/Au@CdSe/CdS多功能复合微球。经过傅里叶变换红外光谱仪(FTIR)、荧光分光光度计、荧光显微镜、X射线衍射(XRD)、透射电子显微镜(TEM)及振动样品磁强计(VSM)的表征。结果表明:多功能复合微球的粒径在40 nm左右,具有超顺磁性,剩磁,矫顽力近似等于零,饱和磁化强度为28.83 A·m2·kg-1,同时兼有优越的荧光性能和金纳米粒子的特性。 相似文献
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