Entity

Time filter

Source Type


Li M.,Xinjiang University | Li M.,Xinjiang Supervision and Inspection Institute for Product Quality | Lu Y.,Xinjiang University | Lu Y.,Xinjiang Supervision and Inspection Institute for Product Quality | And 4 more authors.
Optoelectronics and Advanced Materials, Rapid Communications | Year: 2014

Zinc acetylacetonate and thiourea are reacted in a 30:10 mixed water: glycerin solvent for 12 hours at 130°C to synthesize “core-shell” ZnS microspheres. The ZnS microspheres are characterized by scanning electron microscopy (SEM), transmission electron microscopy(TEM), x-ray diffraction (XRD), x-ray photoelectron spectroscopy (XPS), energy dispersive x-ray (EDX), high-resolution transmission electron microscopy (HRTEM); and selected area electron diffraction (SEAD). Ultraviolet-visible spectra (UV-vis) and photoluminescence spectroscopy (PL) were used in an optical study of the product. The results show that the synthesized ZnS microspheres have a diameter of 3–5 micrometers, a smooth shell surface, and an inner core structure. The existence of glycerin is crucialto the formation of spherical ZnS. no spherical particles are obtained in reaction systems without glycerin, and a decrease in glycerin content of the system reduces the yield of spherical products. ©2014 National Institute of Optoelectronics. All rights reserved. Source


Li M.,Xinjiang University | Li M.,Xinjiang Supervision and Inspection Institute for Product Quality | Yang B.,Xinjiang Supervision and Inspection Institute for Product Quality | Hao J.,Chinese Academy of Sciences | And 4 more authors.
Journal of Nanoscience and Nanotechnology | Year: 2016

Molybdenum disulfide (MoS2) was prepared successfully via hydrothermal reaction at 200 °C in water/ethanol (1:1) solvent system using the ammonium molybdate and sodium thiosulfate as the molybdenum sources and sulfur sources, 1-butyl-3-methylimidazolium chloride salt [BMIM][Cl] as the additive agent. The scanning electron microscopy (SEM) and transmission electron microscopy (TEM) were used to examine the morphology and structure of flower-like products. X-ray photoelectron spectroscopy (XPS) and Raman spectroscopy spectrum analysis results show that the asprepared product is a pure phase of MoS2 . The prepared products are used as electrode materials for Li-ion batteries and showed excellent cycle stability and high Coulombic efficiency at a current density of 200 mA • g-1 in the voltage range of 0.01∼3.00 V (vs. 2016 Li/Li +). In addition, this paper also examined the influence of the reaction time and the amount of template agent on morphology, and discussed the reaction mechanism of the formation of flower-like morphology. © 2016 American Scientific Publishers. Source


Li M.,Xinjiang University | Li M.,Xinjiang Supervision and Inspection Institute for Product Quality | Li M.,CAS Lanzhou Institute of Chemical Physics | Hao J.,CAS Lanzhou Institute of Chemical Physics | And 5 more authors.
Synthesis and Reactivity in Inorganic, Metal-Organic and Nano-Metal Chemistry | Year: 2016

CuS, with a flower-like morphology, has been prepared using a facile solvothermal treatment, with copper chloride (CuCl2.2H2O) and thiourea (CH4N2S) in water and dilute ethanol (water/ethanol = 1/1), at 150°C for 15 h without the assistance of a surfactant. The products were characterized by X-ray diffraction, field-emission scanning electron microscopy, transmission electron microscopy, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, Raman spectroscopy, and UV-vis optical absorption spectroscopy. The resultant CuS flowers, with diameters 5 μm, were assembled by sheets. The influences of different solvent systems and varying copper sources on the CuS morphology were also investigated. The results reveal that the hydrophilicity, polarity, and viscosity of the solvent have great influences on the morphology and size of the CuS products. The possible growth mechanisms of flower-like CuS were discussed. The optical properties of the products were also recorded by means of UV-vis absorption spectroscopy. © 2016 Taylor & Francis Group, LLC. Source


Shen J.,Xinjiang Medical University | Xue H.-Y.,Xinjiang Supervision and Inspection Institute for Product Quality | Li G.-R.,Xinjiang Medical University | Lu Y.,Xinjiang Supervision and Inspection Institute for Product Quality | And 2 more authors.
Guang Pu Xue Yu Guang Pu Fen Xi/Spectroscopy and Spectral Analysis | Year: 2014

The present study compared the contents of inorganic elements in the pulp of purple, red, and yellow Prunus cerasifera with its cultivars. A method was established for the analysis of 17 kinds of trace elements (K, Ca, Mg, Na, Fe, M n, Cu, Zn, Be, Li, Se, Sr, Cr, Pb, Cd, As and Hg) in the flesh of Prunus cerasifera by microwave digestion- ICP-MS. The detection method is simple and quick, yet shoes high precision and high sensitivity. The recovery rate of 17 elements ranged from 93.5% to 110.4%. The analysis results showed that the contents of 17 elements in the flesh of purple, red, and yellow Prunus cerasifera and its cultivars are similar, containing extremely rich K elements (as high as 1‰) and higher contents of Ca, Mg, Na, Fe and Mn. The contents of Cu, Zn, Li, Se, Sr and Cr are also present. The contents of Pb, Cd, As, Hg and other harmful element are either very low or not detectable. The experimental results for the study of trace elements in pulp of Prunus cerasifera and its cultivars provide empirical data for future research in this area. Source

Discover hidden collaborations