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Citation: CHEN Chen, LIU Hui-Yong. Oxidation of Ammonia Nitrogen on SnO₂-C/Ti Electrode[J]. Chinese Journal of Applied Chemistry, ;2008, 25(7): 838-842. shu

Oxidation of Ammonia Nitrogen on SnO₂-C/Ti Electrode

CHEN Chen ,
LIU Hui-Yong ^,

1.
Department of Applied Chemistry, Fuzhou University, Fuzhou 350002

Corresponding author: LIU Hui-Yong,
Received Date: 13 July 2007
Available Online: 8 October 2007

SnO₂ was synthesized by sol-gel method,and Vulcan XC-72 carbon was used as a carrier to form SnO₂-C(ω(SnO₂)=20%) electro-catalyst.X-ray diffraction (XRD) indicated that the phase of SnO₂ belonged to rutile,and the particle size was ca.100 nm by scanning electron microscopy (SEM).Cyclic voltammetric (CV) results indicated that the activity of the catalyst on Sb doped SnO₂-C/Ti electrode was higher than that on SnO₂-C/Ti electrode especially in alkali solution with the oxidation current rised from 8×10^-3 mA to 1.5×10^-2 mA.Electrochemical impedance spectroscopy (EIS) measurement indicated that a film was formed on the surface of electrode,and the composition of the film changed with different applied potentials.
- SnO₂-C,
- electrochemistry oxidation,
- ammonia
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Oxidation of Ammonia Nitrogen on SnO₂-C/Ti Electrode