• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Electrochemical Science >Electropolymerization of Nitrophenol Isomers in Various Aqueous Electrolytic Solutions
【24h】

Electropolymerization of Nitrophenol Isomers in Various Aqueous Electrolytic Solutions

机译：各种含水电解溶液中硝基苯酚异构体的电聚合

获取原文
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

This study focuses on the electrodeposition of 2-nitrophenol, 3-nitrophenol, and 4-nitrophenol in either acidic, alkaline or neutral aqueous solutions. All the isomers have been electropolymerized using cyclic voltammetry (CV). A notable feature in all CV measurements was that the insulating polymer films deposited on gold electrodes (A= 0.02 cm2) from solutions were revealed by the rapid drop in current measured, when compared to the original CV scans. Generally, the anodic oxidation potential for 3-nitrophenol was slightly lower than that for 2-nitrophenol and 4-nitrophenol electropolymerized from solutions of similar pH. Values of the molecular orbital energies of the HOMO and LUMO orbitals of the nitrophenol monomers in various ionization states were determined. Energy values were calculated and used to explain the electrochemistry of nitrophenol isomers. Electropolymerization of nitrophenol isomers was found to be most difficult in acid and easiest in basic medium. This was also confirmed by the calculated diffusion coefficients of the monmers. In conclusion, 3-nitrophenol showed the best electropolymerization performance, and 2-nitropehnol showed very poor coverage on the electrode surface.
机译：该研究侧重于酸性，碱性或中性水溶液中2-硝基苯酚，3-硝基苯酚和4-硝基苯酚的电沉积。所有异构体都使用循环伏安法（CV）电聚合。所有CV测量中的一个值得注意的特征是，与原始CV扫描相比，通过测量的电流的快速下降显示沉积在溶液上的绝缘聚合物薄膜。通常，3-硝基苯酚的阳极氧化电位略低于2-硝基苯酚和4-硝基苯酚从类似pH的溶液电聚合的4-硝基苯酚。确定了各种电离状态中硝基苯酚单体的同性恋和LuMO轨道的分子轨道能量的值。计算能量值并用于解释硝基苯酚异构体的电化学。发现硝基苯酚异构体的电聚合在酸中最难以在基础培养基中最困难。这也通过计算出的纺织物的扩散系数来证实。总之，3-硝基苯酚显示出最佳的电聚合性能，2-Nitropehnol在电极表面上显示出非常差的覆盖率。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号