合理设计
材料科学
电池(电)
介孔材料
催化作用
甲醇
多孔性
制作
化学工程
锌
氧还原反应
纳米技术
功率密度
电极
化学
电化学
冶金
有机化学
复合材料
功率(物理)
物理化学
医学
物理
替代医学
病理
量子力学
工程类
作者
Sensen Li,Yan Lv,Sawida Elam,Xiuli Zhang,Yang Zhang,Xueyan Wu,Jixi Guo
出处
期刊:Molecules
[MDPI AG]
日期:2023-03-23
卷期号:28 (7): 2879-2879
被引量:2
标识
DOI:10.3390/molecules28072879
摘要
The rational design of morphology and structure for oxygen reduction reaction (ORR) catalysts still remains a critical challenge. Herein, we successfully construct defect-rich and hierarchically porous Fe-N-C nanosheets (Fe-N-CNSs), by taking advantage of metal-organic complexation and a mesoporous template. Benefiting from the advantages of high density of active sites, fast mass transfer channels, and sufficient reaction area, the optimal Fe-N-CNSs demonstrate satisfactory ORR activity with an excellent half-wave potential of up to 0.87 V, desirable durability, and robust methanol tolerance. Noteworthy, the Fe-N-CNSs based zinc-air battery shows significant performance with a peak power density of 128.20 mW cm-2 and open circuit voltage of 1.53 V, which reveals that the Fe-N-CNSs catalysts present promising practical application prospects. Therefore, we believe that this research will provide guidance for the optimization of Fe-N-C materials.
科研通智能强力驱动
Strongly Powered by AbleSci AI