IrO2-Ta2O5 Anode for Oxygen Evolution with TaOx Interlayer Prepared by Thermal Decomposition in Inert Atmosphere

被引：10

作者：

Liu, Yueren ^{[1
]}

Xu, Likun ^{[1
]}

Xin, Yonglei ^{[1
]}

Liu, Feng ^{[1
]}

Xuan, Junji ^{[1
]}

Guo, Mingshuai ^{[1
]}

Duan, Tigang ^{[1
]}

机构：

[1] Luoyang Ship Mat Res Inst, State Key Lab Marine Corros & Protect, Qingdao 266237, Peoples R China

来源：

JOURNAL OF THE ELECTROCHEMICAL SOCIETY | 2022年 / 169卷 / 04期

关键词：

Oxide anode; Iridium oxide; Tantalum oxide; Interlayer; Thermal decomposition; LONG SERVICE LIFE; ELECTROCHEMICAL PROPERTIES; EVOLVING ELECTRODES; TANTALUM OXIDE; COATED ANODES; SURFACE CHARACTERIZATION; CORROSION MECHANISM; SULFURIC-ACID; TA2O5; TITANIUM;

D O I：

10.1149/1945-7111/ac65bd

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 ;

摘要：

A novel IrO2-Ta2O5 coated titanium anode with TaOx interlayer was prepared using a facile method of thermal decomposition. The interlayer and the composite anodes of Ti/TaOx/IrO2-Ta2O5 were characterized with surface analytical techniques of XPS, XRD, SEM and EDS. The electrochemical properties of the composite anodes with different coats of the interlayer were measured using anodic polarization, CV, EIS and accelerated life testing. The results showed that the TaOx interlayer was amorphous consisting of multivalent Ta oxides. The electrocatalytic activity for oxygen evolution reaction and the stability of the composite anodes were improved obviously with adding the TaOx interlayer of appropriate thickness, which can be attributed to the increase of electrochemically active sites and the extra protection for Ti substrate by the non-stoichiometric TaOx interlayer.

引用

页数：11

共 69 条

[1] An investigation of the effect of RuO2 on the deactivation and corrosion mechanism of a Ti/IrO2 + Ta2O5 coating in an OER application [J].