The PCL5 transfer number ( t ion ) was determined to be 0.93, evidence of the ionic nature of the doped electrolyte. Further, the purity and electrochemical stability of SPEs were studied using cyclic voltammetry and chronocoulometry. The thermal analysis showed reduced crystallinity and changes in...
If a p-type polysilicon layer 107 is formed, silane (SiH4) and a phosphorus-containing compound, e.g., PCl5 or PH3 are used. If an n-type polysilicon layer 107 is formed, silane and a boron-containing compound, e.g., BCl3 or B2H6 are used. When an MEMS is a micro gas sensor,...
因价层电子对中无孤对电子,所以pcl5 为三角双锥构型。 实例分析:试判断h2o分子的空间构型。 解:o是h2o分子的中心原子,它有 6个价电子,与o化合的2个h原子各提供1个电子,所以o原子价层电子对数为(6+2)/2 = 4,其排布方式为 四面体,因价层电子对中有2对孤对电子,所以h2o分子的空间构型为v形。 表9-5 ...
Until 1988, the first example of this type of macromolecule was reported by Kim and Webster [12]. Since then, hyperbranched polymers have attracted much attention in polymer science owing their unique physical and chemical properties [13–15], such as less entanglement in the solid state, fast...