邵名望教授、康振辉教授、刘阳教授、纪玉金副教授、廖凡老师合作在 Adv. Funct. Mater.上发表论文

题目：

1D Monoclinic Ir_xRu_1-xO₂ Solid Solution with Ru-Enhanced Electrocatalytic Activity for Acidic Oxygen Evolution Reaction

作者：

Keyang Qin¹, Hao Yu¹, Wenxiang Zhu¹, Yunjie Zhou¹, Zhiyong Guo², Qi Shao³, Yangbo Wu⁴, Xuepeng Wang⁴, Youyong Li¹, Yujin Ji¹*, Fan Liao¹*, Yang Liu¹*, Zhenhui Kang^1,5* and Mingwang Shao¹*

单位：

¹Institute of Functional Nano & Soft Materials (FUNSOM) Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China

²State Key Laboratory for Managing Bioticand Chemical Threats to the Quality and Safety of Agro-Products, School of Material Science and Chemical Engineering Ningbo University, Ningbo 315211, PR China

³College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China

⁴Faculty of Electrical Engineering and Computer Science, Ningbo University, Ningbo 315211, PR China

⁵Macao Institute of Materials Science and Engineering (MIMSE), MUST−SUDA Joint Research Center for Advanced Functional Materials, Macau University of Science and Technology, Taipa 999078, Macao, China

摘要：

The rutile phase IrO₂, as a promising catalyst for oxygen evolution reaction (OER), still falls short of satisfactory activity. Here, a novel 1D monoclinic phase iridium-ruthenium oxide solid solution (m-Ir_xRu_1-xO₂) is reported. For m-Ir_xRu_1-xO₂ with different metal proportions, the optimal m-Ir_0.91Ru_0.09O_2-δ catalyst exhibits excellent OER activity under acidic conditions with an overpotential of 180 mV at 10 mA cm⁻². As an anode catalyst in a proton exchange membrane electrolyzer, m-Ir_0.91Ru_0.09O_2-δ with a low catalyst loading (0.1 mg cm⁻²) can operate ≈256 h at 1.8 V with a high current density over 900 mA cm⁻² at room temperature. Such a satisfied stability may have originated from the specific morphology and crystal structure, which is confirmed by the transient potential scanning test. Density functional theory calculations show that the Ru in the m-Ir_xRu_1-xO₂ facilitates decreasing the OER overpotentials due to the electron transfer from Ru to Ir.

影响因子：

19.924

分区情况：

一区

链接：

https://onlinelibrary.wiley.com/doi/10.1002/adfm.202402226