Preparation of one-dimensional nickel nanopowders
Journal Title: Science Paper Online - Year 2007, Vol 2, Issue 5
Abstract
Self-assembly one-dimensional nickel nanopowders with different diameters and ratio of length to diameter were prepared by soft templates in ethylene glycol solutions. The elements of nickel powders were analyzed by the X-ray diffraction and micro-morphology and size was characterized with scanning electron microscope and field emission scanning electron microscope. The effects of temperature, time and kinds of nickel compounds on preparation were studied. The results showed one-dimensional nickel nanopowders could be prepared in proper conditions at 80℃.
Authors and Affiliations
Zhigang Qiu, Hongying Yu , Dongbai Sun
三苯胺取代的联吡啶钌光诱导电子转移研究
本文将电子供体三苯胺通过大 共轭链引入到联吡啶上合成三苯胺取代的联吡啶钌金属配合物。在加酸和粘度实验中,三苯胺的构型发生改变,导致其发射光谱、循环伏安曲线改变;加入电子受体或者电子供体,其瞬态吸收光谱也发生改变。从而间...
Surface modification of Mg73Zn26Y quasicrystal alloy using a high current pulsed electron beam treatment
Mg73Zn26Y quasicrystal alloy was treated using the high current pulsed electron beam (HCPEB). Its surface microstructure features along with hardness and wear resistance were investigated by X-ray diffraction, scanning...
Study on Flood Simulation in Yi River based on TOPMODEL
The TOPMODEL, coupling with the infiltration excess mechanism, was used to simulate flood events in Dongwan basin in the upper stream of Yi River. The Green-Ampt model was used to calculate the infiltration excess runoff...
中医四诊数字化技术的应用前景
本文首次提出中医数字化诊断技术的概念及具体应用内容。根据现代科学技术的发展进程,设想中医诊断学在未来有可能引用的生物识别关键技术,包括面部识别技术、虹膜检测技术、指纹、掌纹识别技术、图像分析技术、声音识别技术、电子鼻气味...
基于蚁群正反馈的Agent联盟形成策略
联盟形成是多agent系统中的一个核心问题,由于系统的计算资源有限,因此设计一种能有效缓解计算瓶颈和信息拥塞的联盟形成策略是关键。基于蚁群算法的正反馈思想,以熟悉度表示agent之间的相互关系,提出了一种具有“正反馈”特性的联盟形成...