摘要
采用电沉积和热分解方法制备了Ti/SnO_2+Sb_2O_1/PbO_2电极,用循环伏安法(CV)对该电极在酸性溶液中氧化2,2-二羟甲基丙醛的电极过程进行了理论探讨。重点考察了扫描速率和2,2-二羟甲基丙醛浓度等因素对2,2-二羟甲基丙醛氧化为2,2-二羟甲基丙酸的影响。结果表明:在酸性溶液中,Ti/SnO_2+Sb_2O_1/PbO_2电极可将2,2-二羟甲基丙醛氧化为2,2-二羟甲基丙酸,此电极具有较好的电催化作用。根据Delahay理论,该电氧化过程为扩散步骤所控制,此结果为2,2-二羟甲基丙醛氧化反应的研究提供了理论依据。
Ti/SnO_2 + Sb_2O_4/PbO_2 electrode was prepared by thermal decomposition and electrodeposition.The electro-oxidation of 2,2-dimethylolpropionaldehyde on Ti/SnO_2 + Sb_2O_4/PbO_2 electrode in acid was investigated by cyclic voltammetry.Effects of scanning rate and 2,2-dimethylolpropionaldehyde concentration on the electro-oxidation of 2,2-dimethylolpropionaldehyde were discussed.The results showed that 2,2-dimethylolpropion acid was formed by oxidation on Ti/SnO_2 + Sb_2O_4/PbO_2 electrode and the reaction controlled step was the diffusion process according to Delahay theory.The Ti/SnO_2 +Sb_2 O_4/PbO_2 electrode showed good electrochemical catalytic activity to the oxidation of 2,2-dimethylolpropionaldehyde in sulfuric acid.
出处
《化工学报》
EI
CAS
CSCD
北大核心
2008年第S1期20-24,共5页
CIESC Journal
基金
国家自然科学基金项目(20771080)。~~
