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软模板法制备皂荚形貌银纳米粒子 尹荔松1,王忆1,张梅1,何鑫1,阳素玉2 (1.五邑大学功能材料研究所,江门,529020;2.中南大学物理科学与技术学院,长沙,410083) 摘要:利用软模板法制备了具有新颖皂荚形貌的Ag纳米粒子,其平均尺寸为60~70nm.钛酸丁酯和乙酰丙酮螯舍而成的网络结构可指导一维Ag纳米粒子的生长.实验结果表明,反应温度和反应时间会影响皂英形貌Ag纳米粒子的生长动力学过程. 关键词:银纳米粒子; 皂荚形貌; 软模板法; silver nanoparticles; gleditschia horrida morphology; soft template method; [全文内容正在添加中] ......
复杂形状SiC陶瓷的模板法成型研究进展 乔冠军1,徐顺建1 (1.西安交通大学金属材料强度国家重点实验室,西安,710049;2.新余高等专科学校太阳能科学与工程系,新余,338000) 摘要:SiC陶瓷具有良好的综合性能,广泛应用于众多工程领域.在现有制备工艺中模板法是一种有效的复杂形状SiC陶瓷的成型技术,其能力源于硅化前多孔碳质模板的易成型以及硅化前后模板的几何形状保持不变.主要综述了模板法制备复杂形状SiC陶瓷过程中所涉及的成型工艺,模板的类型,模板的孔结构要求以及硅化机理等相关问题,分析和评述了其存在的问题和发展趋势. 关键词:模板法; 碳化硅; 机理; 研究与制备; template methods; silicon carbide; mechanism; research and preparation; [全文内容正在添加中] ......
最小以防止模板更新过程中产生漂移.研究结果表明:该算法可以在跟踪中有效抑制模板漂移,实现对形变目标的长时间稳定跟踪,实时性好,便于在实时系统中实现.关键词:匹配跟踪;模板更新;相似性准则;模板漂移A template drift suppression algorithm based on distance weight MADWANG Lu-ping, MA Feng, HAN Jian-tao(School of Electronics Science and Engineering,National University of Defense Technology, Changsha 410073, China)Abstract:Aimed at the problem of losing target caused by template drift in tracking......
一步模板炭化法制备新型沥青基中孔炭材料 陈明鸣1,王成扬1,王艳素1 (1.天津大学化工学院,绿色合成与转化教育部重点实验室,天津,300072) 摘要:以乙酸镁和柠檬酸镁为模板(MgO)镁源,沥青为碳前驱体,在氮气氛中950℃一步炭化制得高表面积中孔炭材料.采用1 mol/L的HCl去模,并将炭材料洗涤至中性.采用低温N2吸附测得炭材料的比表面积和孔径分布,透射电镜观察炭材料的内部结构特征.结果表明:尽管未经活化,所得炭材料中的孔大多为中孔,BET比表而积达到1295 m2/g,当以柠檬酸镁为MgO前驱体时,所得炭材料的收率可高达50%. 关键词:沥青; MgO; 模板炭化法; 中孔炭; Pitch; MgO; Template carbonization; Mesoporous carbon; [全文内容正在添加中] ......
纳米CeO_2颗粒的晶化度,避免了高温焙烧过程时硬团聚体的生成,颗粒尺寸为2.5~3.8nm;纳米CeO_2颗粒具有良好的可见光透过和优异的紫外光吸收性能. 关键词:纳米CeO_2; 超声模板法; 共沸蒸馏; 水热处理; CeO_2nanoparticles; ultrasonic template method; azeotropic distillation; hydrothermal......
Synthesis, Characterization and Gas Sensing Properties of In(OH)3 and In2O3 Nanorods through Carbon Spheres Template MethodXifeng Lu 1) , Lei Zhang 2) , Hui Zhao 3) , Kai Yan 1) , Yan Cao 1) and Lumin Meng 1) 1) Lunan Institute of Coal Chemical Engineering, Jining 272000, China 2) College of Chemistry and Life Sciences, Zhejiang Normal University, Jinhua 321004, China 3) Jining Institute......
template method; gas sensing properties; [全文内容正在添加中] ......
of anodic voltage, anodizing time, size of aluminium foil and additives on the regularity of PAA membrane were also studied in the process of two-step anodization. The template method was combined... by the pore size and depth of the PAA template. Scanning electron microscopy (SEM) and X-ray diffraction (XRD) were used to characterize the morphology and phase structure of the PAA template and the titania......
of Li-ion battery was investigated. Tin-oxide nanotubes were prepared by combining sol-gel method with polycarbonate template. Scanning electron microscopy and X-ray diffractometry were applied...; tin-oxide; template 1 Introduction Tin-based materials have been of considerable interest because, in principle, they can store over twice as much Li as graphite. However, large volume changes occur......
Controlled synthesis of highly ordered CuO nanowire arrays by template-based sol-gel route SU Yi-kun(苏轶坤)1, 2, 3, SHEN Cheng-min(申承民)2, YANG Hai-tao(杨海涛)2, LI Hu-lin(力虎林)3, GAO Hong-jun(高鸿均... of composite-oxides were synthesized within a porous anodic aluminum oxide(AAO) template by a citrate-based sol-gel route. A vacuum system was applied to draw the gel into the template pores, which......