New laser-based method for the synthesis of stable and active Ti/SnO2–Sb anodes

Fabrication and Characterization of Pt doped Ti/Sb-SnO2 Electrode and its Efficient Electro-Catalytic Activity toward Phenol

“…In the corresponding equivalent circuit, Rs represents the solution resistance between the reference electrode and the prepared electrode; CPE is the constant phase element; Rct represents the charge transfer resistance between the oxide and the solution interface, which mainly reflects the electrocatalytic activity of the electrode to phenol. [3,17,57] According to the fitting results, the arc diameter corresponding to Rct of Ti/Pt-Sb-SnO2 electrode is smaller than that of Ti/Sb-SnO2 electrode, indicating that Ti/Pt-Sb-SnO2 electrode had the lowest charge transfer resistance and the superior conductivity, which facilitates the electro-catalytic reaction rate and phenol removal. And hence the energy loss and cell potential are also expected to be reduced which would be beneficial for economic rationality of water treatment process.…”

“…In recent years, titanium-based metal oxide anodes as promising materials have been widely used in many fields, such as organic electro-synthesis, water electrolysis, electronic device and electro-catalytic degradation of organic pollutants. [1][2][3][4][5][6][7][8] Up to date, a large number of metal oxide electrodes have been studied, including ruthenium oxide (RuO2), iridium oxide (IrO2), lead oxide (PbO2), tin oxide (SnO2) and so on. [9][10][11][12][13][14][15] It is well known that the performance of metal oxide active coatings, such as the chemical composition, the structure, the morphology and so on, which play vital role in the electro-catalytic properties.…”

“…Therefore, anode material with a high oxygen evolution potential (OEP) is especially desirable since high OEP is conducive to the oxidation of organic pollutants on the electrode surface, which can effectively inhibit the occurrence of OER, decrease the unwanted power loss and improve the overall current efficiency. [16][17][18] The Ti/Sb-SnO2 electrodes is considered to be one of the most attractive alternatives for the electro-catalytic of organic contaminants due to high OEP, easy preparation, high electrical conductivity, low cost, no secondary pollution and excellent electro-catalytic ability (good ability to generate OH•). [1,[16][17][18][19][20][21] Yao et al investigated the effects of Sb doping level on the properties of the Ti/Sb-SnO2 electrodes.…”

“…[16][17][18] The Ti/Sb-SnO2 electrodes is considered to be one of the most attractive alternatives for the electro-catalytic of organic contaminants due to high OEP, easy preparation, high electrical conductivity, low cost, no secondary pollution and excellent electro-catalytic ability (good ability to generate OH•). [1,[16][17][18][19][20][21] Yao et al investigated the effects of Sb doping level on the properties of the Ti/Sb-SnO2 electrodes. He also found that the crystal size, microstructure, resistivity, electrochemical behavior and electro-catalytic activity for pollutant oxidation were highly dependent on the doping level and 3% Sb-doped electrodes have the lowest resistivity and best electro-catalytic activity.…”

“…The effects of annealing temperatures on the physical and electrochemical properties of the electrodes were also studied. [17] Dongwook Lim et al examined the effect of the doping amount on the electrochemical activity and stability of the electrode. They found that the Ti/SnO2 electrode with 10% Sb dopant showed the highest catalytic activity and COD removal (87%).…”