Numerical simulation of liquid flow in microchannel with electrical double layer overlaping 两种液体在微圆管道内流动特性的试验研究
2.
The capacitance in an electrochemical capacitor can arise from the charging or discharging of the electrical double layers or from faradaic redox reactions ( pseudocapacitance ) . the latter gives a larger capacitance value compared to the former and was called supercapacitors . many approaches have been pursued in the development and characterization of new electrode materials for the better capacitive performance 本论文共分为四章:第一章是电化学电容器的研究背景;第二章是ru1 - ycryo2 / tio2纳米管复合材料的电容行为;第三章是co ( oh ) 2 /活性炭复合材料的制备及其超电容行为;第四章是基于氧化镍的超级电容器的研究。
3.
The interactions between particles were discussed based on dlvo and edlvo theories . experiment results show the effect of the ph on the dispersion is due to the repulsion interactions of electrical double layer ; and addition suitable inorganic dispersant or organic macromolecule dispersant results in improvement the stabilization of the dispersion . the main action of the inorganic dispersants is to increase the repulsion interactions of electrical double layer and the main action of organic macromolecule dispersant is to increase hydration shell and steric hindrance 研究表明: ph对颗粒分散的影响主要体现在对颗粒间双电层静电排斥力的改变;添加合适分散剂可以改变颗粒在水中的分散性;无机电解质的分散机制主要是增加颗粒表面的双电层静电排斥作用能,而高分子分散剂的分散机制主要是增加颗粒的水化膜排斥能和位阻排斥能;复合分散剂的分散效果要优于单一分散剂;提出了用经时损失性来评价分散稳定性。