研究型综合化学新实验——反式-2，3-二氢呋喃的立体选择性合成及其表征

介绍了一个综合化学新实验--反式-2-噻吩基-α-甲酰基-3-(4-硝基苯基)-4-乙酰基-5-甲基-2,3-二氢呋喃的立体选择性合成及其表征.整个实验将立体合成方法与现代仪器分析技术巧妙结合,由红外光谱、质谱、核磁共振氢谱、元素分析等多种仪器分析方法来确定产物的最终结构,由1 H-1H NOESY和单晶X-射线衍射确定产物构型.     

电化学双层电容器中碳纳米管电极的化学法处理

Multi-walled carbon nanombes with homogeneous diameters （40 - 60 nm）, produced by chemical vapor deposition of hydrocarbon gas, are purified by nitric acids. Infrared and Raman studies indicate that oxygen containing surface groups, which are predominately carboxylic, phenolic and lactonic groups, are introduced into purified carbon nanotubes. Then three kinds of block-form porous tablets of carbon nanotubes are fabricated as electrodes in electrochemical double-layer capacitors. Using mounded mixture comprising carbon nanotubes and binder powders provides these tablets. Comparison of the effect of different processing on the structural performance of the capacitors is specifically investigated. Using chemically treated electrodes, electrochemical double-layer capacitors with a specific capacitance of about 33 F/g are obtained with 38 wt % H2SO4 as the electrolyte.     

聚电解质复合纳滤膜的设计性实验

为进一步深化实验教学改革,培养学生的综合能力、实践能力、创新能力和科研探索精神,开设了由教师科研项目转化而来的设计性实验.介绍了聚电解质复合纳滤膜的制备及性能测试的原理和方法.学生可根据自己的思路选择不同的聚电解质,制备出不同的聚电解质复合纳滤膜.通过对膜性能的测试,初步了解聚电解质种类、聚电解质层数、组装顺序等对膜性能的影响.