电化学合成重铬酸钾阳极的制备和电催化性能

摘要：

针对电化学合成重铬酸钾绿色新技术,采用涂层自组装方法制备了钛基铱氧化物中间层钌铱钛氧化物复合电极(Ti/IrO_2/RuO_2-IrO_2-TiO_2).利用扫描电镜、X射线衍射分析了电极的微观结构和表面形貌,并采用循环伏安法研究了电极的电催化性能.结果表明,电极表面RuO_2-IrO_2-TiO_2柱状结晶规则均匀,并有明显空隙.电极在阳极液中析氧过电位较低,并具有稳定的较高的电催化活性.

Aiming at the new green technology of producing potassium dichromate with an electrochemical synthesis method？ a titanium matrix composite electrode of Ru-Ir-Ti oxide with Ir0 2 mesosphere （Ti/IrO2/RuO2 - IrO2 -TiO2） was pre-pared by the coating self-assembly method. The microstructure and surface morphology of the electrode were analyzed by scan-ning electron microscopy （SEM） and X ray diffraction （XRD） , and the electrocatalytic properties of the electrode were studied by cyclic voltammetry. The results showed that the RuO2 - IrO2 -TiO2 columnar crystal on the surface of the electrode was u-niform and had obvious interspace. Ti/Ir02/Ru02 - Ir02 - T i02 electrode exhibited lower overpotential for oxygen evolution in anolyte, with much stabler and higher electrocatalytic activity.

作者：

李成未 常香玲 李琛

Li Chen gwei Chang Xiangling Li Ch en(School of Chemistry and Environments Henan Inst itute of Educationg Zhengzhou 450046？ China School of Energy and Chemical Engineerings Puyang Vocational and Technical College, Puyang 457000, China Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, China)

机构地区：

河南教育学院化学与环境学院 濮阳职业技术学院能源与化学工程学院 中国烟草总公司郑州烟草研究院

出处:

《betway官方app 学报：自然科学版》 CAS 北大核心 2017年第4期53-56,共4页

基金:

河南省科技攻关重点项目(122102310330)

关键词:

钛基复合电极 铬酸钾 重铬酸钾 电催化

titanium matrix composite electrode potassium chromate potassium dichromate electro-catalysis

分类号:

O646.5 [理学—物理化学]

电化学合成重铬酸钾阳极的制备和电催化性能.pdf