Preparation and Performance of Mesoporous Carbon-SnO₂-Sb Composite Electrode

Abstract:

The composite electrode, formed by SnO₂-Sb as catalyst agent, mesoporous carbon (MC) and polytetrafluoroethylene (PTFE), was prepared and characterized by scanning electron microscopy (SEM), X-ray diffraction (XRD) and N₂ adsorption-desorption analyses. It has a high BET surface area of 184 m² g^-1 with a narrow pore distribution centered at 6.2 nm. The phenol removal of 96.3 % was achieved with the composite electrode in the electrochemical oxidation of aqueous phenol wastes after 80 min electrolysis while it was only 84.1 % for the SnO₂-Sb electrode. The removal of chemical oxygen demand (COD) was 62.9 % on the composite electrode which was also higher than that on the SnO₂-Sb electrode (38.3 %).

• Periodical: Applied Mechanics and Materials (Volumes 651-653)
• Pages: 1361-1364
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.651-653.1361
• Online since: September 2014
• Authors: Ai Ping Li*, Hai Qing Xu, Liang Dong Feng, Yue Ming Sun
• Keywords: Composite Electrodes, Electrochemical Oxidation, Mesoporous Carbon, SnO₂

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