Titanium-based lead dioxide anode with intermediate layer made of modified TiO2 nanotube arrays, preparation method and applications thereof

• Main Authors: XU ZHENCHENG, ZHUO QIONGFANG, WANG LI, GUO QINGWEI, YI HAO, LUO MEIQING, WANG ZHENXING
• Format: Patent
• Language: English
• Published: 11.03.2015
• Subjects: APPARATUS THEREFOR; CHEMISTRY; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTIONOF COMPOUNDS OR NON-METALS; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; METALLURGY; NANOTECHNOLOGY; PERFORMING OPERATIONS; SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; TRANSPORTING; TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE

The invention belongs to the technical field of electrode materials, and specifically relates to a titanium-based lead dioxide anode with an intermediate layer made of modified TiO2 nanotube arrays, a preparation method and applications thereof. The anode preparation method comprises the following steps: pre-treating a titanium plate, performing anode oxidation and calcination to obtain a Ti/TiO2 nanotube array electrode, carrying out electric deposition in an AgNO3 solution to obtain a Ti/TiO2-NTs/Ag electrode, carrying out anode oxidation to obtain a Ti/TiO2-NTs/Ag2O electrode, and finally performing electrochemical deposition in an electrolyte solution containing Pb(NO3)2, HNO3, and NaF to obtain a Ti/TiO2-NTs/Ag2O/PbO2 anode. Through preparing an Ag2O layer between titanium dioxide nanotubes and PbO2, the oxygen evolution potential, service life, and electrochemical oxidizing performance of the electrode are all improved.