个人信息Personal Information
教授
博士生导师
硕士生导师
主要任职:Director, State Key laboratory of Fine Chemicals
其他任职:精细化工国家重点实验室主任、国务院学科评议组成员
性别:男
毕业院校:大连理工大学
学位:博士
所在单位:化工学院
学科:应用化学. 精细化工. 化学生物学
办公地点:大连理工大学精细化工国家重点实验室
西部校区化工实验楼F-202#
http://peng-group.dlut.edu.cn/
联系方式:大连理工大学精细化工国家重点实验室 西部校区化工实验楼F-202 辽宁省大连市高新区凌工路2号,大连116024 Tel: 0411-84986306; Fax: 0411-84986292;课题组网址:http://peng-group.dlut.edu.cn/
电子邮箱:pengxj@dlut.edu.cn
ELECTROCHEMICAL-BEHAVIOR OF AZO DYES IN ACID ETHANOL MEDIA
点击次数:
论文类型:期刊论文
发表时间:1992-01-01
发表刊物:DYES AND PIGMENTS
收录刊物:SCIE、Scopus
卷号:20
期号:2
页面范围:73-81
ISSN号:0143-7208
摘要:The electrochemical reduction of four azo dyes in acid media was studied by differential-pulse polarography, cyclic voltammetry and constant-potential coulometric methods. All of the electro-reductions of the azo groups are irreversible one-step and 4-electron reduction at pH < 2. Ortho and para electron withdrawing substituents (e.g. -CO2Bu-n) cause the azo groups to be more easily reduced than meta analogues. In compounds containing both azo and nitro groups, the azo group is reduced prior to the nitro group. The dyes are very useful in silver dye bleach photographic materials.