The uniform NiFe2O4 powders with different particle size and morphologies (octahedral, cubic and spherical) have been prepared from different precursors via hydrothermal process. The nanocrystallines derived from pre...The uniform NiFe2O4 powders with different particle size and morphologies (octahedral, cubic and spherical) have been prepared from different precursors via hydrothermal process. The nanocrystallines derived from precursor B in the weak alkali solution (pH≤10) are superparamagnetic.展开更多
A new heteronuclear complex, dimer [(2-OH2)2Ba2(H2O)4][VO2(tpa)]24H2O (tpa: 2,4,6-tripicolinate trianion), was synthesized and structurally determined by X-ray diffraction technique where all hydrogen atoms have been ...A new heteronuclear complex, dimer [(2-OH2)2Ba2(H2O)4][VO2(tpa)]24H2O (tpa: 2,4,6-tripicolinate trianion), was synthesized and structurally determined by X-ray diffraction technique where all hydrogen atoms have been located directly. The coordination geometry of V(V) ion is a distorted trigonal bipyrimid and that of Ba(II) ion is a capped square antiprism. One 2-O bridging bond and two hydrogen bonds act between the coordination geometries. A 1-D extended porous construction containing 20-member cavities is observed in the crystal.展开更多
Nanocrystalline Pb1-1.5xLaZr0.5Ti0.5O3 (x = 0.01-0.06, PLZT) powders with particle size from 30 to 150 nm were hydrothermally synthesized from the gets under mild conditions. The reaction conditions such as La content...Nanocrystalline Pb1-1.5xLaZr0.5Ti0.5O3 (x = 0.01-0.06, PLZT) powders with particle size from 30 to 150 nm were hydrothermally synthesized from the gets under mild conditions. The reaction conditions such as La content, reaction temperature and time were studied in detail and optimal conditions were established for synthesizing PLZT powders with different La contents. The effects of La content, alkali concentration, reaction temperature and time on the particle size were studied.展开更多
Monodisperse a-Fe2O3 particles with different particle size (ca. 62010 nm or 604 nm) have been successfully prepared by hydrothermal method in short periods. In this process, the crystal-growing inhibitor (DBS) favor...Monodisperse a-Fe2O3 particles with different particle size (ca. 62010 nm or 604 nm) have been successfully prepared by hydrothermal method in short periods. In this process, the crystal-growing inhibitor (DBS) favored the formation of monodisperse nanoparticles.展开更多
文摘The uniform NiFe2O4 powders with different particle size and morphologies (octahedral, cubic and spherical) have been prepared from different precursors via hydrothermal process. The nanocrystallines derived from precursor B in the weak alkali solution (pH≤10) are superparamagnetic.
基金This project is supported by NNSF of China(60172003)Specialized Research Foundations of Shandong Province(11120106).
文摘A new heteronuclear complex, dimer [(2-OH2)2Ba2(H2O)4][VO2(tpa)]24H2O (tpa: 2,4,6-tripicolinate trianion), was synthesized and structurally determined by X-ray diffraction technique where all hydrogen atoms have been located directly. The coordination geometry of V(V) ion is a distorted trigonal bipyrimid and that of Ba(II) ion is a capped square antiprism. One 2-O bridging bond and two hydrogen bonds act between the coordination geometries. A 1-D extended porous construction containing 20-member cavities is observed in the crystal.
文摘Nanocrystalline Pb1-1.5xLaZr0.5Ti0.5O3 (x = 0.01-0.06, PLZT) powders with particle size from 30 to 150 nm were hydrothermally synthesized from the gets under mild conditions. The reaction conditions such as La content, reaction temperature and time were studied in detail and optimal conditions were established for synthesizing PLZT powders with different La contents. The effects of La content, alkali concentration, reaction temperature and time on the particle size were studied.
文摘Monodisperse a-Fe2O3 particles with different particle size (ca. 62010 nm or 604 nm) have been successfully prepared by hydrothermal method in short periods. In this process, the crystal-growing inhibitor (DBS) favored the formation of monodisperse nanoparticles.
