常见元素掺杂的钛基体PbO2电极制备与表征

稀有金属材料与工程, 2013, 42(5): 887-892.

常见元素掺杂的钛基体PbO2电极制备与表征

1.西安交通大学,陕西西安710049;香港理工大学,香港九龙

2.西安交通大学,陕西西安710049

3.西安交通大学,陕西西安710049;西安交通大学苏州研究院,江苏苏州215012

4.香港理工大学,香港九龙

基金项目: (SBK201022919) Ph.D.Programs Foundation of Ministry of Education of China(20090201110005) the Joint supervision scheme of Hong Kong Polytechnic University(GU-784) Natural Science Foundation of Jiangsu Province

关键词： PbO2电极 , 掺杂 , 强化寿命 , 析氧电位 , 苯酚降解

Preparation and Characterization of Titanium Based Pbo2 Electrodes Doped with Some Common Elements

Xu Hao ^1, , Li Jingjing ^2, , Yan Wei ^3, , Chu W ^4,

1.西安交通大学,陕西西安710049;香港理工大学,香港九龙

2.西安交通大学,陕西西安710049

3.西安交通大学,陕西西安710049;西安交通大学苏州研究院,江苏苏州215012

4.香港理工大学,香港九龙

Keywords： PbO2 electrode , doping , accelerated life , oxygen evolution potential , phenol wastewater degradation

采用电沉积法制备了4种钛基体PbO2电极,其中3种分别采用Fe、Ni和Ag进行掺杂.利用SEM、XRD、强化寿命测试及线性伏安扫描对所制备4种电极性质进行表征,结果表明:4种电极表面均为四方体形PbO2颗粒；非掺杂电极及Ni掺杂电极的平均颗粒直径非常接近,且要小于Fe掺杂及Ag掺杂电极;Fe掺杂电极的强化测试寿命最长(116 h),这可能是由其致密的表面所导致；Ni掺杂电极的析氧电位为4种电极中最高,并在苯酚降解实验中拥有最高的COD去除效率及平均电流效率,以及最低的能耗值.

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