Study on synthesis and explosion properties of<br /> porous silicon/NaClO4 composite<br />
Journal Title: Science Paper Online - Year 2008, Vol 3, Issue 3
Abstract
Porous silicon is prepared by electrochemical oxidization method. The porosity and thickness of porous silicon prepared by different conditions as well as the influence of prepared conditions, concentration of sodium perchlorate solution and storage method on the explosive phenomena are researched in this paper. The results show that the porosity of porous silicon increase at the earlier stage, and decrease at the latter stage with the increase of current density and etching time; when current density is 50 mA•cm-2 and etching time is 30 min, porosity reached the maximum; increasing the concentration of hydrofluoric acid, the porosity will decrease; longer etching time would lead to thicker film depth. SEM analysis shows that porous silicon cracks on surface and forms silicon column in its internal. Porous silicon composite cannot explode prepared by small current density and short etching time; when the mass concentration of sodium perchlorate solution is higher than 98 g•L-1, the explosion phenomena are the most obvious; the best storage method of porous silicon composite is dipping in the absolute ethanol.
Authors and Affiliations
LI Xueming CHEN Jianwen
Keywords
Related Articles
- EP ID EP134073
- DOI -
- Views 142
- Downloads 0
基于多功能航标的内河管理体系<br /> 关键技术与实施方案研究<br />
拓展了航标功能，集成各种传感器，探测航标附近航道的水文、天气、污染和航道信息以及航标维护等相关信息，丰富了数字化航道的内涵。利用AIS与无线传感网络构建多功能航标信息无线网络通讯系统，规避了公网的弊端，节省了通信费用，构建...
直接法合成二甲基二氯硅烷单体反应<br /> 体系的热力学计算<br />
为了确定直接法合成反应的控制步骤，对这一复杂反应体系进行了系统的热力学平衡计算。计算结果表明，从热力学的角度来看，主产物二甲基二氯硅烷（M2）并非优先生成，反应产物的分布情况实际上为主反应和各副反应的动力学所控制。在整个反...
Research on reliability analysis of component assembly for internetware
Internetware is a kind of significant emerging software systems in the open, dynamic and uncertain environment （like Internet）. It is built upon the coordination of the heterogeneous, autonomous software entities in th...
阴离子交换树脂固相萃取分离纯化DNA
以330阴离子交换树脂为吸附材料建立了固相萃取分离DNA的方法。利用血红蛋白和树脂之间的静电作用力将DNA吸附至树脂，以Na2HPO4溶液为洗脱剂回收DNA．考察了溶液pH值、吸附时间和温度、洗脱剂的种类及其浓度等对分离纯化的影响。在优化实...
真空紫外激发La(POB3B)B3B:TbP3+P的发光性质
本文研究了La1-x(POB3B)B3B:TbxP3+P (0<x≤0.6)的真空紫外荧光特性，发现La(POB3B)B3B的阴离子基团(POB3B)B3PB3-P可以有效地吸收163和174 nm处的激发能，而且，(POB3B)B3PB3-P (174 nm) 的吸收带与LaP3+P-OP2-P (200 nm)和TbP3+P (213...