高等学校化学学报2013，Vol.34Issue(8)：1959-1964,6.DOI:10.7503/cjcu20121045
2-羟基-1,4-萘醌的电化学氧化还原机理研究
Study on the Electrochemical Redox Mechanism of 2-Hydroxy-1,4-naphthoquinone
摘要
Abstract
In situ IR spectroelectrochemistry,cyclic voltabsorptometry (CVA) and derivative cyclic voltabsorptometry(DCVA) techniques were used to study the electron transfer mechanism of 2-hydroxy-1,4-naphthoquinone (2-HNQ) in acetonitrile.When the scan range is from 0.2 V to-1.8 V,the voltammogram of 2-HNQ in acetonitrile shows two couples of anodic and cathodic peaks.When the scan range is from 1.0 V to-2.0V,there is another anodic peak in cyclic voltammetry(CV) at more positive potential.Tracing the change of some IR absorption peaks during CV scan,there are two kinds of intermediates in the electrochemical process.Radical dianion formed by the reduction process of deprotonated quinine (Q-O-) continues to reduce,i.e.,Q-O-reduces by an electrochemical reaction-electrochemical reaction mechanism(EE pathway).In addition,it involves the formation of strong hydrogen bonding.关键词
现场红外光谱电化学法/循环伏吸法/导数循环伏吸法/2-羟基-1,4-萘醌/中间体/氢键Key words
In situ IR spectroelectrochemistry/ Cyclic voltabsorptometry (CVA) / Derivative cyclic voltabsorptometry (DCVA) / 2-Hydroxy-1,4-naphthoquinone / Intermediate / Hydrogen-bonding分类
化学化工引用本文复制引用
李丹,金葆康..2-羟基-1,4-萘醌的电化学氧化还原机理研究[J].高等学校化学学报,2013,34(8):1959-1964,6.基金项目
国家自然科学基金(批准号:21175001,20875001)、教育部博士学科点专项科研基金(批准号:20103401110001)和安徽大学"211计划"资助. （批准号:21175001,20875001）
