电解解离氢键层层组装薄膜
发布时间：2018-08-21 12:17
【摘要】：利用电解解离的方法研究层层组装氢键复合薄膜(PEOX/PAA)的解离行为,将制备在导电ITO玻璃上的薄膜放置于电解池的正极进行解离,实验后得到均匀平坦而非粗糙的薄膜。通过衰减全反射(ATR)和循环伏安法(CV)分析可知,引起氢键薄膜解离的是正极附近形成的pH梯度区间,即靠近电极呈酸性、远离电极呈碱性。此外,对比薄膜在电解池正负极的解离行为,进一步证明正负极附近形成的不同pH梯度区间导致薄膜解离形貌和厚度差异的产生。电解液的pH以及电解电压均影响氢键薄膜在正极的解离行为,通过分析提出了一个较为适宜的电解解离条件。
[Abstract]:The dissociation behavior of layer upon layer assembled hydrogen-bonded composite film (PEOX/PAA) was studied by electrolysis method. The film deposited on conductive ITO glass was placed on the positive electrode of the electrolysis cell for dissociation, and the uniform flat film was obtained after the experiment. Through the analysis of attenuated total reflection (ATR) and cyclic voltammetry (CV), it is found that the dissociation of hydrogen bond films is caused by pH gradient near the positive electrode, that is, it is acidic near the electrode and alkalescent away from the electrode. In addition, by comparing the dissociation behavior of the film in the cathode and cathode in the electrolysis cell, it is further proved that the different pH gradient region near the positive and negative electrode leads to the difference in the morphology and thickness of the film. The pH of the electrolyte and the electrolytic voltage all affect the dissociation behavior of the hydrogen bonding film at the positive electrode.
【作者单位】： 东华大学材料科学与工程学院纤维材料改性国家重点实验室东华大学先进低维材料中心;
【分类号】：TB383.2
，
本文编号：2195708
[Abstract]:The dissociation behavior of layer upon layer assembled hydrogen-bonded composite film (PEOX/PAA) was studied by electrolysis method. The film deposited on conductive ITO glass was placed on the positive electrode of the electrolysis cell for dissociation, and the uniform flat film was obtained after the experiment. Through the analysis of attenuated total reflection (ATR) and cyclic voltammetry (CV), it is found that the dissociation of hydrogen bond films is caused by pH gradient near the positive electrode, that is, it is acidic near the electrode and alkalescent away from the electrode. In addition, by comparing the dissociation behavior of the film in the cathode and cathode in the electrolysis cell, it is further proved that the different pH gradient region near the positive and negative electrode leads to the difference in the morphology and thickness of the film. The pH of the electrolyte and the electrolytic voltage all affect the dissociation behavior of the hydrogen bonding film at the positive electrode.
【作者单位】： 东华大学材料科学与工程学院纤维材料改性国家重点实验室东华大学先进低维材料中心;
【分类号】：TB383.2
，
本文编号：2195708
本文链接：https://www.wllwen.com/guanlilunwen/gongchengguanli/2195708.html
