Chemical Industry and Engineering Progree ›› 2016, Vol. 35 ›› Issue (S2): 244-247.DOI: 10.16085/j.issn.1000-6613.2016.s2.041

• Material science and technology • Previous Articles     Next Articles

Preparation of Ti/MnO2 electrode for the catalytic oxidation of methanol

ZHU Xuejun, DENG Jun, ZHANG Yi   

  1. Panzhihua Key Laboratory of Chemical Resource Engineering, Panzhihua 617000, Sichuan, China
  • Received:2016-09-29 Revised:2016-10-08 Online:2016-12-22 Published:2016-12-31

Ti/MnO2电极制备及对甲醇催化氧化

朱学军, 邓俊, 张毅   

  1. 攀枝花市化工资源有效利用重点实验室, 四川 攀枝花 617000
  • 通讯作者: 朱学军(1974-),男,博士,教授,主要研究方向为化工新材料制备及应用。E-mail:zxjpzh@163.com。
  • 基金资助:
    攀枝花市科技计划项目(2011TX-1)。

Abstract: Ti-based manganese dioxide coated electrode(Ti/MnO2) is known as a promising anode material.Ti/MnO2 catalytic electrode was prepared through the method of electro-deposition and the electrode coating was represented with SEM.The performance of Ti/MnO2 electrode was tested by such electrochemical methods as cyclic voltammetry,anodic polarization and Tafel diagram.Methanol was subject to electro-catalytic oxidation with prepared Ti/MnO2 electrode where study was carried out regarding the influence of current intensity,methanol concentration and electrolysis time on methanol electrolytic rate.Results indicated that with evenly-distributed grain and less cracks,Ti/MnO2 catalytic electrode can cover Ti substrate well.In case the current intensity was controlled at 1.0mA,the electrolyte concentration at 0.4mg/mL and the electrolytic time at 50min,the maximum catalytic oxidation activity of electrode on methanol could be reached and the electrolytic rate was up to 85.16%.

Key words: Ti/MnO2electrode, electro-deposition, catalytic oxidation, cyclic voltamm

摘要: 钛基二氧化锰涂层电极(Ti/MnO2)被认为是一种有发展前途的阳极材料。本文采用电沉积方法制备了Ti/MnO2催化电极,并用SEM对电极涂层进行了表征,利用循环伏安、阳极极化和塔菲尔图等电化学方法测试Ti/MnO2电极的性能,以制备的Ti/MnO2电极对甲醇进行电催化氧化,探究了电流大小、甲醇浓度、电解时间对甲醇电解率的影响。结果表明:Ti/MnO2催化电极晶粒分布均匀,裂缝少,能够很好的覆盖钛基体,当电流强度控制在1mA,电解液浓度为0.4mg/mL,电解时间50min时,电极对甲醇的催化氧化活性最高,电解率达85.16%。

关键词: Ti/MnO2电极, 电沉积, 催化氧化, 循环伏安法

CLC Number: 

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