The Experts below are selected from a list of 228 Experts worldwide ranked by ideXlab platform

Shao-hua Zhang - One of the best experts on this subject based on the ideXlab platform.

  • Effect of MicroStructure on Electrorheological Property for Pure TiO2 Particle Material
    Journal of Materials Science & Technology, 2006
    Co-Authors: Yan-li Shang, Juan Wang, Shao-hua Zhang
    Abstract:

    Pure titanium dioxide (TiO2) particle materials were prepared by hydrolyzing titanium tetrachloride (TiCl4). The microStructures of these materials were determined by X-ray diffraction (XRD), accelerated surface area and porosimetry apparatus (BET), and transmission electron microscopy (TEM). The TiO2 materials obtained by calcinations under different temperatures distinctly revealed different microStructures in Crystal Structure Type, surface area, pore size, pore volume and grain size. The relationship between the microStructure of the TiO2 materials and their electrorheological (ER) activity was investigated. Anatase titania particles have better ER performance than rutile titania particles. Amorphous TiO2 materials display higher ER activity than the Crystalline titania materials. A large pore volume can be more advantageous in improving the ER effect of a particle material.

  • MICROStructure AND ELECTRORHEOLOGICAL PROPERTY OF PURE TiO2 PARTICLE MATERIAL
    Electrorheological Fluids and Magnetorheological Suspensions (ERMR 2004), 2005
    Co-Authors: Yan-li Shang, Juan Wang, Shao-hua Zhang
    Abstract:

    JUAN WANG AND SHAO-HUA ZHANG School of Vehicle and Transmission Engineering, Beijing Institute of Technology, Beijing, 100081, China Pure titanium dioxide (Ti02) particle materials were prepared by hydrolyzing titanium tetrachloride (TiC14). The microStructures of these materials were determined by X-ray difiactometer (XRD) and accelerated surface area & porosimetry apparatus (BET) etc. The Ti02 materials obtained by calcinations under different temperatures revealed distinctly different microStructures in terms of Crystal Structure Type, surface area, pore size, pore volume and grain size. The relationship between the microStructure of the Ti02 materials and their electrorheolagical (ER) activity was investigated.

  • Preparation, Crystal Structure and electrorheological performance of nano-sized particle materials containing ZrO2
    Journal of Solid State Chemistry, 2003
    Co-Authors: Fuhui Liao, Shao-hua Zhang, Le Zhang, Song Gao
    Abstract:

    A series of nano-sized particle materials containing ZrO2 was prepared and their compositions were determined by elemental analysis and thermogravimetric analysis (TGA). The effect of particle size and Crystal Structure Type (lattice and space group) on the ER performance of these materials was investigated by X-ray diffraction (XRD) analysis, Raman spectra, the particle size analysis and rheological measurement. Their electrorheological (ER) effects show that the ER activities of the ZrO2 materials doped with rare earth (RE=Y, La, Ce, Gd, Tb), whose grain sizes were less than that of pure ZrO2, were lower than that of pure ZrO2, which belongs to the tetragonal Crystal system. The ER activity of Y2O3–ZrO2 is the strongest among all the RE-doped ZrO2 materials. The ER activity of the tetragonal phase ZrO2 is higher than that of the monoclinic phase ZrO2.

Yan-li Shang - One of the best experts on this subject based on the ideXlab platform.

  • Effect of MicroStructure on Electrorheological Property for Pure TiO2 Particle Material
    Journal of Materials Science & Technology, 2006
    Co-Authors: Yan-li Shang, Juan Wang, Shao-hua Zhang
    Abstract:

    Pure titanium dioxide (TiO2) particle materials were prepared by hydrolyzing titanium tetrachloride (TiCl4). The microStructures of these materials were determined by X-ray diffraction (XRD), accelerated surface area and porosimetry apparatus (BET), and transmission electron microscopy (TEM). The TiO2 materials obtained by calcinations under different temperatures distinctly revealed different microStructures in Crystal Structure Type, surface area, pore size, pore volume and grain size. The relationship between the microStructure of the TiO2 materials and their electrorheological (ER) activity was investigated. Anatase titania particles have better ER performance than rutile titania particles. Amorphous TiO2 materials display higher ER activity than the Crystalline titania materials. A large pore volume can be more advantageous in improving the ER effect of a particle material.

  • MICROStructure AND ELECTRORHEOLOGICAL PROPERTY OF PURE TiO2 PARTICLE MATERIAL
    Electrorheological Fluids and Magnetorheological Suspensions (ERMR 2004), 2005
    Co-Authors: Yan-li Shang, Juan Wang, Shao-hua Zhang
    Abstract:

    JUAN WANG AND SHAO-HUA ZHANG School of Vehicle and Transmission Engineering, Beijing Institute of Technology, Beijing, 100081, China Pure titanium dioxide (Ti02) particle materials were prepared by hydrolyzing titanium tetrachloride (TiC14). The microStructures of these materials were determined by X-ray difiactometer (XRD) and accelerated surface area & porosimetry apparatus (BET) etc. The Ti02 materials obtained by calcinations under different temperatures revealed distinctly different microStructures in terms of Crystal Structure Type, surface area, pore size, pore volume and grain size. The relationship between the microStructure of the Ti02 materials and their electrorheolagical (ER) activity was investigated.

Ivana Radosavljevic Evans - One of the best experts on this subject based on the ideXlab platform.

  • Bismuth Zinc Vanadate, BiZn2VO6: New Crystal Structure Type and Electronic Structure.
    ChemInform, 2015
    Co-Authors: Sayonara Eliziario Nunes, Chun-hai Wang, John S. O. Evans, Ivana Radosavljevic Evans
    Abstract:

    BiZn2VO6 is prepared by firing stoichiometric amounts of Bi2O3, ZnO, CuO, and NH4VO3 (Al2O3 crucible, 1.

  • Bismuth zinc vanadate, BiZn2VO6 : new Crystal Structure Type and electronic Structure.
    Journal of Solid State Chemistry, 2015
    Co-Authors: Sayonara Eliziario Nunes, Chun-hai Wang, John S. O. Evans, Ivana Radosavljevic Evans
    Abstract:

    We report a combined experimental and computational study of the Crystal Structure and electronic properties of bismuth zinc vanadate, BiZn2VO6, known for its visible light photocatalytic activity. The Crystal Structure has been solved from laboratory powder X-ray diffraction data using the repeated minimisations from random starting values method. BiZn2VO6 adopts a new Structure Type, based on the following building blocks: corner- and edge-sharing ZnO4 tetrahedra, ZnO6 octahedra and VO4 tetrahedra, and Bi2O12 dimers. It is the only known member of the BiM2AO6 (M=Pb, Ca, Cd, Mn, Zn, Mg, Cu; A=V, P, As) family which does not appear to be structurally closely related to others. The electronic Structure of BiZn2VO6, calculated by DFT methods, shows that it is an indirect gap semiconductor with a calculated band gap of 1.6 eV, which compares favourably to the experimentally measured value of 2.4 eV.

Juan Wang - One of the best experts on this subject based on the ideXlab platform.

  • Effect of MicroStructure on Electrorheological Property for Pure TiO2 Particle Material
    Journal of Materials Science & Technology, 2006
    Co-Authors: Yan-li Shang, Juan Wang, Shao-hua Zhang
    Abstract:

    Pure titanium dioxide (TiO2) particle materials were prepared by hydrolyzing titanium tetrachloride (TiCl4). The microStructures of these materials were determined by X-ray diffraction (XRD), accelerated surface area and porosimetry apparatus (BET), and transmission electron microscopy (TEM). The TiO2 materials obtained by calcinations under different temperatures distinctly revealed different microStructures in Crystal Structure Type, surface area, pore size, pore volume and grain size. The relationship between the microStructure of the TiO2 materials and their electrorheological (ER) activity was investigated. Anatase titania particles have better ER performance than rutile titania particles. Amorphous TiO2 materials display higher ER activity than the Crystalline titania materials. A large pore volume can be more advantageous in improving the ER effect of a particle material.

  • MICROStructure AND ELECTRORHEOLOGICAL PROPERTY OF PURE TiO2 PARTICLE MATERIAL
    Electrorheological Fluids and Magnetorheological Suspensions (ERMR 2004), 2005
    Co-Authors: Yan-li Shang, Juan Wang, Shao-hua Zhang
    Abstract:

    JUAN WANG AND SHAO-HUA ZHANG School of Vehicle and Transmission Engineering, Beijing Institute of Technology, Beijing, 100081, China Pure titanium dioxide (Ti02) particle materials were prepared by hydrolyzing titanium tetrachloride (TiC14). The microStructures of these materials were determined by X-ray difiactometer (XRD) and accelerated surface area & porosimetry apparatus (BET) etc. The Ti02 materials obtained by calcinations under different temperatures revealed distinctly different microStructures in terms of Crystal Structure Type, surface area, pore size, pore volume and grain size. The relationship between the microStructure of the Ti02 materials and their electrorheolagical (ER) activity was investigated.

Sayonara Eliziario Nunes - One of the best experts on this subject based on the ideXlab platform.

  • Bismuth Zinc Vanadate, BiZn2VO6: New Crystal Structure Type and Electronic Structure.
    ChemInform, 2015
    Co-Authors: Sayonara Eliziario Nunes, Chun-hai Wang, John S. O. Evans, Ivana Radosavljevic Evans
    Abstract:

    BiZn2VO6 is prepared by firing stoichiometric amounts of Bi2O3, ZnO, CuO, and NH4VO3 (Al2O3 crucible, 1.

  • Bismuth zinc vanadate, BiZn2VO6 : new Crystal Structure Type and electronic Structure.
    Journal of Solid State Chemistry, 2015
    Co-Authors: Sayonara Eliziario Nunes, Chun-hai Wang, John S. O. Evans, Ivana Radosavljevic Evans
    Abstract:

    We report a combined experimental and computational study of the Crystal Structure and electronic properties of bismuth zinc vanadate, BiZn2VO6, known for its visible light photocatalytic activity. The Crystal Structure has been solved from laboratory powder X-ray diffraction data using the repeated minimisations from random starting values method. BiZn2VO6 adopts a new Structure Type, based on the following building blocks: corner- and edge-sharing ZnO4 tetrahedra, ZnO6 octahedra and VO4 tetrahedra, and Bi2O12 dimers. It is the only known member of the BiM2AO6 (M=Pb, Ca, Cd, Mn, Zn, Mg, Cu; A=V, P, As) family which does not appear to be structurally closely related to others. The electronic Structure of BiZn2VO6, calculated by DFT methods, shows that it is an indirect gap semiconductor with a calculated band gap of 1.6 eV, which compares favourably to the experimentally measured value of 2.4 eV.