The Experts below are selected from a list of 17904 Experts worldwide ranked by ideXlab platform
Shouheng Sun - One of the best experts on this subject based on the ideXlab platform.
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magnetic core shell fe3o4 au and fe3o4 au ag Nanoparticles with tunable plasmonic properties
Journal of the American Chemical Society, 2007Co-Authors: Zhichuan J Xu, Yanglong Hou, Shouheng SunAbstract:Core/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.
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Magnetic Core/Shell Fe 3 O 4 /Au and Fe 3 O 4 /Au/Ag Nanoparticles with Tunable Plasmonic Properties
Journal of the American Chemical Society, 2007Co-Authors: Zhichuan Xu, Yanglong Hou, Shouheng SunAbstract:Core/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.\nCore/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.
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Magnetic core/shell Fe3O4/Au and Fe3O 4/Au/Ag Nanoparticles with tunable plasmonic properties
Journal of the American Chemical Society, 2007Co-Authors: Zhichuan Xu, Yanglong Hou, Shouheng SunAbstract:Core/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.\nCore/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.
Yanglong Hou - One of the best experts on this subject based on the ideXlab platform.
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magnetic core shell fe3o4 au and fe3o4 au ag Nanoparticles with tunable plasmonic properties
Journal of the American Chemical Society, 2007Co-Authors: Zhichuan J Xu, Yanglong Hou, Shouheng SunAbstract:Core/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.
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Magnetic Core/Shell Fe 3 O 4 /Au and Fe 3 O 4 /Au/Ag Nanoparticles with Tunable Plasmonic Properties
Journal of the American Chemical Society, 2007Co-Authors: Zhichuan Xu, Yanglong Hou, Shouheng SunAbstract:Core/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.\nCore/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.
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Magnetic core/shell Fe3O4/Au and Fe3O 4/Au/Ag Nanoparticles with tunable plasmonic properties
Journal of the American Chemical Society, 2007Co-Authors: Zhichuan Xu, Yanglong Hou, Shouheng SunAbstract:Core/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.\nCore/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.
Xingyi Huang - One of the best experts on this subject based on the ideXlab platform.
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Influence of interface chemistry on dielectric properties of epoxy/alumina nanocomposites
2015 IEEE Electrical Insulation Conference (EIC), 2015Co-Authors: Pingkai Jiang, Jinhong Yu, Xingyi HuangAbstract:This work was aimed to investigate the influence of alumina (Al2O3) Nanoparticle Surface modification on the micro structure and dielectric properties of epoxy nanocomposites. Al2O3 Nanoparticles were first modified by two modifiers [i.e., γ-aminopropyl-tri-ethoxysilane (APS), hyperbranched aromatic polyamide (HBP)] and then their epoxy nanocomposites were fabricated. The nanocomposites with unmodified Al2O3 Nanoparticles were also prepared for comparative research. Scanning electron microscope (SEM) and impedance analyzer were used to investigate the Nanoparticle dispersion and frequency dependent dielectric properties of the nanocomposites, respectively. It was found that, compared with the epoxy nanocomposites filled with untreated Al2O3 Nanoparticles, the nanocomposites with APS and HBP modified Al2O3 exhibit significantly improved Nanoparticles dispersion in the epoxy matrix. It was also found that the dielectric constant of the nanocomposites was not dependent on the Nanoparticle Surface modification, whereas the dielectric loss of the nanocomposites can be influenced by the Nanoparticle Surface modification.
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Role of interface in highly filled epoxy/BaTiO3 nanocomposites. Part I-correlation between Nanoparticle Surface chemistry and nanocomposite dielectric property
IEEE Transactions on Dielectrics and Electrical Insulation, 2014Co-Authors: Xingyi Huang, Pingkai Jiang, Ke Yang, Chao Wu, Shengtao Li, Shuang Wu, Kohei Tatsumi, Toshikatsu TanakaAbstract:The interface is critical for the design of polymer nanocomposites with desirable properties. The effect of interface behavior on the properties of polymer nanocomposites with low Nanoparticle loading has been well documented. However, our understanding of the role of the interface in highly filled polymer nanocomposites is still limited because of the lack of comprehensive research work. In this contribution, by using BaTiO3 Nanoparticles with six kinds of Surface chemistry, we have prepared highly filled epoxy nanocomposites (50 vol% Nanoparticle loading). The role of Nanoparticle Surface chemistry on the dielectric properties of epoxy nanocomposites is investigated at a wide frequency and temperature range by using broadband dielectric spectroscopy. Combining the microstructure analysis of the highly filled nanocomposites with a comprehensive X-ray photoelectron spectroscopy characterization of the Surface chemistry of the BaTiO3 Nanoparticles, an understanding is formed of the correlation between the Nanoparticle Surface chemistry and the dielectric properties of the nanocomposites. The functional group density, functional group type, and electrical properties of the modifier-the three parameters that are inherent from the Nanoparticle Surface modification-have a strong impact on the temperature and frequency dependence of the dielectric constant and dielectric loss tangent. This work demonstrates the great importance of Surface chemistry in tuning the electrical properties of dielectric polymer nanocomposites.
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Role of interface in highly filled epoxy/BaTiO3 nanocomposites. Part II- effect of Nanoparticle Surface chemistry on processing, thermal expansion, energy storage and breakdown strength of the nanocomposites
IEEE Transactions on Dielectrics and Electrical Insulation, 2014Co-Authors: Xingyi Huang, Pingkai Jiang, Ke Yang, Chao Wu, Shengtao Li, Shuang Wu, Kohei Tatsumi, Toshikatsu TanakaAbstract:Highly filled dielectric polymer nanocomposites with high dielectric constant Nanoparticles (e.g., BaTiO3) have promising application in many fields such as energy storage. The effectiveness of these Nanoparticles to increase the dielectric constant and energy density of the resulting nanocomposites has already been demonstrated. However, the role of interface between the Nanoparticles and polymer matrix on thermal expansion, energy storage and breakdown strength-the three parameters that are important for practical application of the dielectric polymer nanocomposites, has not been systematically documented. In this contribution, we investigated the effect of six kinds of Nanoparticle Surface chemistry on the processing, coefficient of thermal expansion, energy storage and breakdown strength of highly filled epoxy/BaTiO3 nanocomposites. It was found that all these aspects, in particular the processability of the nanocomposites, are associated with the Nanoparticle Surface chemistry. Combining the processability, coefficient of thermal expansion, energy storage and breakdown strength of the nanocomposites, we conclude that the Nanoparticles functionalized by silane coupling agents with terminal groups capable of reacting with the epoxy matrix are more suitable for preparing highly filled dielectric polymer nanocomposites.
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Effect of Nanoparticle Surface treatment on morphology, electrical and water treeing behavior of LLDPE composites
IEEE Transactions on Dielectrics and Electrical Insulation, 2010Co-Authors: Xingyi Huang, Pingkai JiangAbstract:This paper reports on the role of silica Nanoparticle Surface treatment in affecting the morphology, charging current, frequency dependence of dielectric parameters, breakdown electric field and water treeing behaviors of linear low density polyethylene (LLDPE). Octyl-trimethoxysilane was used as a silane coupling agent for the Surface treatment of the silica Nanoparticles. The composite sample with silane-treated Nanoparticles shows improved dielectric properties when compared with the sample with unSurface-treated Nanoparticles. However, although both types of silica Nanoparticles show apparent water tree resistance in LLDPE, the sample with unSurface-treated Nanoparticles shows shorter water tree length.
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Influence of Nanoparticle Surface treatment on the electrical properties of cycloaliphatic epoxy nanocomposites
IEEE Transactions on Dielectrics and Electrical Insulation, 2010Co-Authors: Xingyi Huang, Pingkai Jiang, Yun Zheng, Yi YinAbstract:This experimental study reports the influence of the Surface treatment of silica Nanoparticles on the morphology and electrical properties of epoxy composites. (3-Glycidoxypropyl)methyldiethoxysilane was used as a silane coupling agent for the Surface treatment of the silica Nanoparticles. It was found that the incorporation of the silane onto the Surface of silica Nanoparticles not only improved the dispersion of the Nanoparticles in epoxy, but also improved the electrical properties as compared with the composites filled with unSurface-treated Nanoparticles. The Surface treatment makes it possible to increase volume resistivity, dielectric strength, and provides an excellent approach able to reduce the dielectric loss of the nanocomposites. It is concluded that the improved properties could be directly ascribed to the good dispersion and special physicochemical characteristics of the Surface-treated Nanoparticles in the polymer matrix.
Pingkai Jiang - One of the best experts on this subject based on the ideXlab platform.
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Influence of interface chemistry on dielectric properties of epoxy/alumina nanocomposites
2015 IEEE Electrical Insulation Conference (EIC), 2015Co-Authors: Pingkai Jiang, Jinhong Yu, Xingyi HuangAbstract:This work was aimed to investigate the influence of alumina (Al2O3) Nanoparticle Surface modification on the micro structure and dielectric properties of epoxy nanocomposites. Al2O3 Nanoparticles were first modified by two modifiers [i.e., γ-aminopropyl-tri-ethoxysilane (APS), hyperbranched aromatic polyamide (HBP)] and then their epoxy nanocomposites were fabricated. The nanocomposites with unmodified Al2O3 Nanoparticles were also prepared for comparative research. Scanning electron microscope (SEM) and impedance analyzer were used to investigate the Nanoparticle dispersion and frequency dependent dielectric properties of the nanocomposites, respectively. It was found that, compared with the epoxy nanocomposites filled with untreated Al2O3 Nanoparticles, the nanocomposites with APS and HBP modified Al2O3 exhibit significantly improved Nanoparticles dispersion in the epoxy matrix. It was also found that the dielectric constant of the nanocomposites was not dependent on the Nanoparticle Surface modification, whereas the dielectric loss of the nanocomposites can be influenced by the Nanoparticle Surface modification.
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Role of interface in highly filled epoxy/BaTiO3 nanocomposites. Part I-correlation between Nanoparticle Surface chemistry and nanocomposite dielectric property
IEEE Transactions on Dielectrics and Electrical Insulation, 2014Co-Authors: Xingyi Huang, Pingkai Jiang, Ke Yang, Chao Wu, Shengtao Li, Shuang Wu, Kohei Tatsumi, Toshikatsu TanakaAbstract:The interface is critical for the design of polymer nanocomposites with desirable properties. The effect of interface behavior on the properties of polymer nanocomposites with low Nanoparticle loading has been well documented. However, our understanding of the role of the interface in highly filled polymer nanocomposites is still limited because of the lack of comprehensive research work. In this contribution, by using BaTiO3 Nanoparticles with six kinds of Surface chemistry, we have prepared highly filled epoxy nanocomposites (50 vol% Nanoparticle loading). The role of Nanoparticle Surface chemistry on the dielectric properties of epoxy nanocomposites is investigated at a wide frequency and temperature range by using broadband dielectric spectroscopy. Combining the microstructure analysis of the highly filled nanocomposites with a comprehensive X-ray photoelectron spectroscopy characterization of the Surface chemistry of the BaTiO3 Nanoparticles, an understanding is formed of the correlation between the Nanoparticle Surface chemistry and the dielectric properties of the nanocomposites. The functional group density, functional group type, and electrical properties of the modifier-the three parameters that are inherent from the Nanoparticle Surface modification-have a strong impact on the temperature and frequency dependence of the dielectric constant and dielectric loss tangent. This work demonstrates the great importance of Surface chemistry in tuning the electrical properties of dielectric polymer nanocomposites.
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Role of interface in highly filled epoxy/BaTiO3 nanocomposites. Part II- effect of Nanoparticle Surface chemistry on processing, thermal expansion, energy storage and breakdown strength of the nanocomposites
IEEE Transactions on Dielectrics and Electrical Insulation, 2014Co-Authors: Xingyi Huang, Pingkai Jiang, Ke Yang, Chao Wu, Shengtao Li, Shuang Wu, Kohei Tatsumi, Toshikatsu TanakaAbstract:Highly filled dielectric polymer nanocomposites with high dielectric constant Nanoparticles (e.g., BaTiO3) have promising application in many fields such as energy storage. The effectiveness of these Nanoparticles to increase the dielectric constant and energy density of the resulting nanocomposites has already been demonstrated. However, the role of interface between the Nanoparticles and polymer matrix on thermal expansion, energy storage and breakdown strength-the three parameters that are important for practical application of the dielectric polymer nanocomposites, has not been systematically documented. In this contribution, we investigated the effect of six kinds of Nanoparticle Surface chemistry on the processing, coefficient of thermal expansion, energy storage and breakdown strength of highly filled epoxy/BaTiO3 nanocomposites. It was found that all these aspects, in particular the processability of the nanocomposites, are associated with the Nanoparticle Surface chemistry. Combining the processability, coefficient of thermal expansion, energy storage and breakdown strength of the nanocomposites, we conclude that the Nanoparticles functionalized by silane coupling agents with terminal groups capable of reacting with the epoxy matrix are more suitable for preparing highly filled dielectric polymer nanocomposites.
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Effect of Nanoparticle Surface treatment on morphology, electrical and water treeing behavior of LLDPE composites
IEEE Transactions on Dielectrics and Electrical Insulation, 2010Co-Authors: Xingyi Huang, Pingkai JiangAbstract:This paper reports on the role of silica Nanoparticle Surface treatment in affecting the morphology, charging current, frequency dependence of dielectric parameters, breakdown electric field and water treeing behaviors of linear low density polyethylene (LLDPE). Octyl-trimethoxysilane was used as a silane coupling agent for the Surface treatment of the silica Nanoparticles. The composite sample with silane-treated Nanoparticles shows improved dielectric properties when compared with the sample with unSurface-treated Nanoparticles. However, although both types of silica Nanoparticles show apparent water tree resistance in LLDPE, the sample with unSurface-treated Nanoparticles shows shorter water tree length.
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Influence of Nanoparticle Surface treatment on the electrical properties of cycloaliphatic epoxy nanocomposites
IEEE Transactions on Dielectrics and Electrical Insulation, 2010Co-Authors: Xingyi Huang, Pingkai Jiang, Yun Zheng, Yi YinAbstract:This experimental study reports the influence of the Surface treatment of silica Nanoparticles on the morphology and electrical properties of epoxy composites. (3-Glycidoxypropyl)methyldiethoxysilane was used as a silane coupling agent for the Surface treatment of the silica Nanoparticles. It was found that the incorporation of the silane onto the Surface of silica Nanoparticles not only improved the dispersion of the Nanoparticles in epoxy, but also improved the electrical properties as compared with the composites filled with unSurface-treated Nanoparticles. The Surface treatment makes it possible to increase volume resistivity, dielectric strength, and provides an excellent approach able to reduce the dielectric loss of the nanocomposites. It is concluded that the improved properties could be directly ascribed to the good dispersion and special physicochemical characteristics of the Surface-treated Nanoparticles in the polymer matrix.
Zhichuan Xu - One of the best experts on this subject based on the ideXlab platform.
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Magnetic Core/Shell Fe 3 O 4 /Au and Fe 3 O 4 /Au/Ag Nanoparticles with Tunable Plasmonic Properties
Journal of the American Chemical Society, 2007Co-Authors: Zhichuan Xu, Yanglong Hou, Shouheng SunAbstract:Core/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.\nCore/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.
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Magnetic core/shell Fe3O4/Au and Fe3O 4/Au/Ag Nanoparticles with tunable plasmonic properties
Journal of the American Chemical Society, 2007Co-Authors: Zhichuan Xu, Yanglong Hou, Shouheng SunAbstract:Core/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.\nCore/shell structured Fe3O4/Au and Fe3O4/Au/Ag Nanoparticles are synthesized by depositing Au and Ag on the Fe3O4 Nanoparticle Surface in aqueous solution at room temperature. The control on shell thickness allows the tuning of plasmonic properties of the core/shell structure to be either red-shifted (to 560 nm) or blue-shifted (to 501 nm). Such magneto-optical Nanoparticles should have great potentials for Nanoparticle-based diagnostic and therapeutic applications.
