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Al2 O3 (TiO2 ) insituparticlecomposite [J].JMaterProcTech , 1 995, 53:857-870 . [3] CarsonSandMasounaveJ .Aliteraturereviewonfabri cationtechniquesofparticulatesreinforcedmetalmatrixcomposites......
O,Healy T W J. Adsorption of hydrolyzable metal ions at the oxide-water interface.Ⅰ: Co(Ⅱ) adsorption on SiO2 and TiO2 as model systems[J]. Journal of Colloid and Interface Science, 1972, 40(1......
文章编号:1004-0609(2009)05-0910-09 S与金属共掺杂TiO2催化剂的制备及其光催化性能 顾凌燕1,王玉萍1,2,彭盘英1,王连军2 (1. 南京师范大学 化学与环境科学学院,南京 210097； 2. 南京理工大学 化工学院,南京 210094) 摘 要:采用溶胶-凝胶法制备S,Mo,Pt,Fe掺杂以及S/Mo,S/Fe,S/Ag共掺杂的TiO2粉末,利用XRD,XPS和UV-Vis等技术对样品进行表征；以1-萘酚-5-硫酸(L-酸)为目标物,考查紫外和可见光源下各催化剂的光催化活性.结果表明:除S/Ag-TiO2外,其余掺杂TiO2均为单一的锐钛矿相,掺杂后催化剂的吸收带边发生明显红移；对10 mg/L的L-酸进行降解,在可见光下,S-TiO2光催化活性较好,而在紫外光下,S/Ag-TiO2的光催化活性较好；经XPS分析发现,掺杂元素掺入到......
Effect of substrate temperature on structural properties and photocatalytic activity of TiO2 thin films ZHAO Lei(赵 磊), LIAN Jian-she(连建设) Key Lab of Automobile Materials, Ministry of Education...; Abstract: Titanium dioxide (TiO2) films with anatase structure were prepared......
Effect of particle size and agglomeration of TiO2 on synthesis and electrochemical properties of Li4Ti5O12 WU Le(伍乐), KAN Su-rong(阚素荣)?, LU Shi-gang(卢世刚), ZHANG Xiang-jun(张向军), JIN Wei-hua(金维华.... The influence of the solvents for mixing the starting material on the products was investigated. The results show that nano-sized Li4Ti5O12 powder obtained by nano-sized TiO2 with ethanolamine......
Trans. Nonferrous Met. Soc. China 22(2012) 1232-1238 TiO2 nanoparticles prepared by hydrochloric acid leaching of mechanically activated and carbothermic reduced ilmenite TAO Tao1, CHEN Qi-yuan1, HU... process, namely the leaching time, temperature, and acid concentration, were studied. After leaching and calcining the milled and annealed mixture of FeTiO3/C under the optimal conditions, the TiO2......
, AMIN S S, XU T T. Substrate effect on the Young's modulus measurement of TiO2 nanoribbons by nanoindentation [J]. J Materials Research, 2010, 25(5): 935-942. [30] HUANG H, WINCHESTER K, LIU Y, HU X Z......
eV/atom远大于在石墨烯上的吸附能,同时强吸附作用是由于形成了金属碳键(Wδ+–Cδ-和Tiδ+–Cδ-).研究者也引入氮化物的复合硫正极,导电性良好的VN/与Li2S6结合能为3.75 eV,显著增强对多硫化锂的吸附作用[48]；将TiN与硫正极复合,计算出TiN与S8的结合能为6.60 eV远大于石墨的结合能(0.76 eV),TiO2的结合能(1.78 eV),Ti4O7的结合能(1.28 eV),发现添加TiN有利于稳定短链多硫化物,而且协助长链多硫化物碎化为短链多硫化物,有利于放电过程中第二电压平台的出现[49].二维层状材料中的金属氧化物,硫化物,碳化物,氮化物均表现出对多硫化锂的强吸附作用. 1.2.2 三维材料 体相的三维(3D)金属化合物与多硫化锂的形成能或吸附能一般采用GGA-PBE方法计算,同时考虑vdW修正方法.计算TiO2与Ti4O7与多硫化锂相互作......
; (4) 即时效过程中SnAgCu-TiO2复合钎料的平均扩散系数为0.0374 μm2/s,低于SnAgCu的0.0447 μm2/s,说明纳米TiO2可以阻碍元素扩散,抑制IMC的形成.但是TiO2含量不宜过高,否则会"团聚"而导致组织粗化[28],如图4所示. 图4 TiO2颗粒含量对SnAgCu钎料的树枝晶尺寸的影响 Fig. 4 Effect of TiO2 content on dendrite-arm spacing of SnAgCu solders 石墨烯纳米片(Graphenenanosheets,简称GNSs)具备超强的力学,热学和电学性能[29],是现在最为热门的新型材料.GNSs具有二维纳米结构和极大的比表面积,添加进钎料后不仅能够改善钎料的润湿性能和力学性能[30],而且对钎......
Jia-ping, JIANG Kai-li, LI Qun-qing, FAN Shou-shan. Binder-free LiCoO2/carbon nanotube cathodes for high-performance lithium ion batteries[J]. Advanced Materials, 2012, 24(17): 2294-2298. [10] 郑贞苗, 唐新村...]. Chemistry-A European Journal, 2013, 19(2): 493-499. [71] YU Jia-guo, ZHANG Jun. A simple template-free approach to TiO2 hollow spheres with enhanced photocatalytic activity[J]. Dalton Transactions......
