Preparation and electrochemical properties of SnO2-Sb-Ni-Ce oxide anode for phenol oxidation

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• 作者：Zhirong Sun ; Huan Zhang ; Xuefeng Wei ; Xiaoyue Ma…
• 关键词：Electrocatalytic oxidation ; Co ; doping ; SnO2 ; Sb ; Ni ; Ce anode ; Phenol ; Reactive oxygen species
• 刊名：Journal of Solid State Electrochemistry
• 出版年：2015
• 出版时间：August 2015
• 年：2015
• 卷：19
• 期：8
• 页码：2445-2456
• 全文大小：3,051 KB
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• 作者单位：Zhirong Sun (1)
  Huan Zhang (1)
  Xuefeng Wei (1)
  Xiaoyue Ma (1)
  Xiang Hu (2)
  
  1. College of Environmental & Energy Engineering, Beijing University of Technology, Beijing, 100124, People’s Republic of China
  2. College of Chemical Engineering, Beijing University of Chemical Technology, Beijing, 100029, People’s Republic of China
  
• 刊物类别：Chemistry and Materials Science
• 刊物主题：Chemistry
  Physical Chemistry
  Analytical Chemistry
  Industrial Chemistry and Chemical Engineering
  Characterization and Evaluation Materials
  Condensed Matter
  Electronic and Computer Engineering
  
• 出版者：Springer Berlin / Heidelberg
• ISSN：1433-0768

文摘

A novel Ni-Ce co-doped SnO2-Sb anode with macroporous titanium sheet as substrate (mp-Ti/SnO2-Sb-Ni-Ce anode) was prepared by modified sol–gel method. The surface morphology, the crystal structure, and the valence of the dopants were characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS), respectively. In addition, cyclic voltammetry (CV), linear sweep voltammetry (LSV), electrochemical impedance spectroscopy (EIS), and accelerated life test were also carried out to study the electrochemical properties and stability of the anodes. The results indicated that mp-Ti/SnO2-Sb-Ni-Ce anode possessed a compact and uniform surface and a longer service life than other modified SnO2 anodes. Electrocatalytic oxidation of phenol was studied in a constant current density of 10?mA?cm? at 25?°C to evaluate the application potential of the electrode. Effects of current density and initial pH value on phenol degradation were studied. The co-doping of Ni-Ce significantly enhanced the degradation of phenol and the total organic carbon (TOC) removal on the anode, which might be attributed to the improved generation of reactive oxygen species (ROS) in the solution and the indirect oxidation.