AN ESR STUDY OF ELECTROCHEMICAL REDUCTION OF NITROBENZENE

• 作 者: 汪正浩 胡志彬
• 机 构: Department of Chemistry, Beijing Normal University,Department of Chemistry, Beijing Normal Universit
• 出 处: Science in China,Ser.B
• 发表日期: 1988年05期
• 关键词: nitrobenzene electrolysis electrolytic installed concerned gated vent alkaline s

By means of a highly sensitive electrolytic cell installed in the ESR cavity, the authors investi-gated in situ the kinetic behavior of the primary electroreduction product (a radical anion) in a sol-vent mixture of water and ethanol over a wide range of pH. For the first time they observed somefurther complex kinetic behaviors of the electroreduction process of nitrobenzene. Through a study ofthe behavior of the radical anion (φ-NO_2~-.) with variations of pH, concentration of nitrobenzene(φ-NO_2) and electroreduction potential, they advanced a reaction scheme of the electroreduction ofnitrobenzene and simulated the experimental curves in order to evaluate the kinetic parameters of thereaction steps concerned.

The means of a highly sensitive electrolytic cell installed in the ESR cavity, the authors investi-gated in situ the kinetic behavior of the primary electroreduction product (a radical anion) in a sol-vent mixture of water and ethanol over a wide range of pH . For the first time they observed somefurther complex kinetic behaviors of the electroreduction process of nitrobenzene. Through a study of the behavior of the radical anion (φ-NO_2 ~ -.) With variations of pH, concentration of nitrobenzene (φ-NO_2) and electroreduction potential, they advanced a reaction scheme of the electroreduction of nitrobenzene and simulated the experimental curves in order to evaluate the kinetic parameters of thereaction steps concerned.