石英晶体微天平
化学
电化学
氧化还原
水溶液
无机化学
离子键合
盐酸
氯化物
离子强度
离子
电极
物理化学
有机化学
吸附
作者
Elaine Pavini Cintra,Roberto M. Torresi,Guy Louarn,Susana I. Córdoba de Torresi
标识
DOI:10.1016/j.electacta.2003.11.005
摘要
In this work, the strong influence of the anion on both electropolymerization and redox processes of poly(5-amino 1-naphthol) (poly(5-NH2 1-NAP)) is studied by using electrochemical quartz crystal microbalance (ECQM) and atomic force microscopy (AFM). Studies were carried out in the presence of different acid eletrolytic solutions: hydrochloric acid (HCl) and camphorsulphonic acid (HCSA) to investigated the role played by anions taking into account the very different characteristics of chloride and camphorsulfonate anions such as size, ionic mobility, charge/mass ratio, etc. The electropolymerization process of poly(5-amino 1-naphtol) leads to the formation of adherent and electroactive films but the electroactivity depends on the chemical nature of the counter anion used in the electropolymerization and electrochemical studies. Charge compensation during redox processes occurs by mainly the expulsion/insertion of protons from the polymeric matrix during oxidation/reduction but the participation of anions cannot be neglected and it plays a relevant role in film electroactivity.
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