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ZnS包覆及其光致发光研究 杨国建1,史新宇1,孙元平1,李剑平1,徐宝龙1 (1.烟台大学光电信息学院功能材料研究中心,烟台,264005) 摘要:应用水热法制备了立方相ZnS,通过均匀沉淀法得到ZnO包覆的ZnS颗粒.简单介绍了包覆的原理,对样品进行了XRD,SEM和光致发光光谱PL表征.结果表明,应用不同的表面活性剂可得到形貌各异的样品. 关键词:硫化锌; 水热法; 均匀沉淀; ZnO包覆; 光致发光谱; ZnS; hydrothermal method; homogeneous precipitation method; ZnO-coated; PL spectra; [全文内容正在添加中] ......
by homogeneous precipitation method using cobalt chloride as source of cobalt, hexamethylenetetramine(HMT) as precipitating agent and sodium dodecyl sulfate (SDS) as surface active agent at the solvent ratio... 800 charge-discharge cycles. Key words: α-Co(OH)2; homogeneous precipitation method; specific capacitance; electrochemical capacitor ......
Fe2O3的影响,并得出了最佳工艺条件.产品分析表明,在反应物n(尿素):n(硝酸铁)=5:1,铁盐浓度为0.20mol/L,沉淀反应温度为115℃的最佳条件下制得的纳米Fe2O3粒子呈球形,分散性好,纯度较高,属立方晶系结构,平均粒径约为21nm. 关键词:氧化铁; 纳米颗粒; 均匀沉淀法; 正交实验; 生物质气化; iron oxide; nanoparticles; homogeneous precipitation method; orthogonal experiment; biomass gasification; [全文内容正在添加中] ......
; 文献标志码:A 文章编号:1672-7207(2013)06-2181-05 Preparation of Ca2Co2O5 powders by homogeneous precipitation WANG Haidong, CHEN Shuibo, WAN Wei (School of Minerals Processing and Bioengineering, Central South University, Changsha 410083, China) Abstract: Homogeneous precipitation method was applied to synthesize Ca2Co2O5 powders by using Ca......
luminescent materials by homogeneous precipitation method and its properties CHEN Guo-hua1, 2, LIU Xin-yu1, 2, CHEN Li-jie1 (1. Department of Information Material Science and Engineering, Guilin... aluminate long persistence phosphors were prepared through homogeneous precipitation method. The precursor and calcined samples were characterized by TG, IR, XRD, SEM and spectrophoto-fluorometer......
was obtained by homogeneous precipitation of yttrium and europium with oxalic acid when using EDTA, citric acid or starch as complexant. The structure and morphology of the phosphors were characterized by XRD...% higher than that of commercial Y2O3?Eu3+ red phosphor. Key words: Y2O3?Eu3+; molten salt; homogeneous precipitation; morphology; luminescent property ......
In vitro and in vivo Characterization of Homogeneous Chitosan-based Composite Scaffolds李红摘 要:With a homogeneous distribution of hydroxyapatite (HAP... homogenous distribution of HAP due to its higher ability to induce HAP precipitation. The results of in vitro cell culture showed that the composite’s biocompatibility was enhanced by the homogenous......
;the sequence of continuous precipitation is G.P.zone →γ″→γ′→γ.Furthermore,the precipitation transformation mechanism of softstate alloy is homogeneous nucleation,while hard-state alloy shows...Precipitation Behavior of Cu-1.9Be-0.3Ni-0.15Co Alloy During AgingYan-Chuan Tang1,Yong-Lin Kang1,Li-Juan Yue2,Xiao-Liang Jiao21. School of Materials Science and Engineering,University of Science......
Tendency of homogeneous radial deformation during electromagnetic compression of aluminium tube YU Hai-ping(于海平)1, LI Chun-feng(李春峰)1, LIU Da-hai(刘大海)1, MEI Xian(梅 险)2 1. School of Materials...: Electromagnetic forming is one of the high-rate forming methods that can be extensively used to form and join axisymmetric metal sheet and tube. Tendency of homogeneous radial deformation during......
Preparation of Fine Spherical Particle Sized Ceria by Precipitation Method with Ammonium Bicarbonate Cui Dali1,Zhang Guocheng1,Zhu Zhaowu1,Zhang Shunli1,Long Zhiqi1 (1.Advanced Materials Co. Ltd., Beijing General Research Institute of Nonferrous Metals, Beijing 100088, China) Abstract:Fine spherical particle sized ceria (CeO2) was prepared by homogeneous precipitation method with ammonium......
