A promising Ti/SnO^sub 2^ anodes modified by Nb/Sb co-doping

Electrochemical properties of Ti/SnO2 anodes, such as oxygen evolution potential, current efficiency and service lifetime, have been enhanced significantly by Nb/Sb co-doping. Characterization of X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) indicated that Nb substituted Sn in S...

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Veröffentlicht in:	Journal of electroanalytical chemistry (Lausanne, Switzerland) Switzerland), 2018-09, Vol.824, p.169
Hauptverfasser:	Chen, Aqing, Xia, Shengjian, Pan, Haiyue, Xi, Junhua, Qin, Haiying, Lu, Hongwei, Ji, Zhenguo
Format:	Artikel
Sprache:	eng
Schlagworte:	Anodes Charge transfer Chemical compounds Chemical evolution Current efficiency Diffraction Doping Electrocatalysis Electrochemical analysis Electrochemical impedance spectroscopy Niobium Organic chemistry Protective coatings Service life Tin dioxide Wastewater treatment X ray photoelectron spectroscopy X-ray diffraction
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Zusammenfassung:	Electrochemical properties of Ti/SnO2 anodes, such as oxygen evolution potential, current efficiency and service lifetime, have been enhanced significantly by Nb/Sb co-doping. Characterization of X-ray diffraction (XRD) and X-ray photoelectron spectroscopy (XPS) indicated that Nb substituted Sn in SnO2 lattice with the chemical state of Nb5+. Electrochemical impedance spectroscopy (EIS) measurement showed that Ti/Nb-Sb-SnO2 anodes, compared to Ti/Sb-SnO2 anodes, have a lower charge transfer resistance, exhibiting more efficient electrocatalytic activity. These results suggest that Ti/Nb-Sb-SnO2 anodes are suitable for use in wastewater treatment.
ISSN:	1572-6657 1873-2569