题目：

Iron Polyphthalocyanine Sheathed Multiwalled Carbon Nanotubes: A High-Performance Electrocatalyst for Oxygen Reduction Reaction

作者：

Xinxia Wang, Bin Wang, Jun Zhong, Feipeng Zhao, Na Han, Wenjing Huang, Min Zeng, Jian Fan* and Yanguang Li*

单位：

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

摘要：

The past decade has witnessed a rapid surge of interest in the research and development of non-precious metal based electrocatalysts for oxygen reduction reaction (ORR). Till now, the best catalysts in acidic electrolytes are exclusively Fe-N-C type materials from high temperature pyrolysis. Even though the ORR activities of metal phthalocyanine or porphyrin macrocycles have long been known, their durability remains poor. In this work, we revisit these macrocycles, and based on them, develop a novel type of organic-carbon hybrid materials from in-situ polymerization of iron phthalocyanine on conductive multiwalled carbon nanotube scaffolds using a low-temperature microwave heating method. At an optimal polymer to carbon ratio, the hybrid electrocatalyst exhibits excellent ORR activity with positive half-wave potential of 0.80 V, a large mass activity up to 18.3 A/g at 0.80 V and a low peroxide yield of <3%. In addition, the strong electronic coupling between polymer and carbon nanotubes is believed to suppress the demetallization of the macrocycles, affording significantly improved cycling stability in acids. Our study represents one of few examples of non-precious metal based electrocatalysts prepared in the absence of high temperature pyrolysis while having an ORR activity in acidic media meaningful toward practical applications.

影响因子：

7.010

分区情况：

1区

链接：

http://link.springer.com/article/10.1007/s12274-016-1046-5

(责任编辑：杨阳，联系方式：yangyangcnst@suda.edu.cn)