Metal-metalloporphyrin MOF-derived core-shell Ni3Fe@FeNi-NC towards high-performance bifunctional oxygen
Kairen Cheng1, Guoxin Zhang1, Xingxing Li1
1Wenzhou Key Lab of Advanced Energy Storage and Conversion, College of Chemistry and Materials Engineering, Wenzhou University, Wenzhou, Zhejiang 325035, China. kaichen@wzu.edu.cn.
Abstract:
A core-shell Ni3Fe@FeNi-NC composite catalyst, characterized by robust interactions, was prepared by the direct pyrolysis of a 2D metal-metalloporphyrin framework. The graphitized carbon coating enhanced electron transfer and stability, resulting in superior bifunctional catalytic activity in the ORR/OER and excellent performance in rechargeable aqueous zinc-air batteries.
Related Concept Videos
Thermal and Photochemical Electrocyclic Reactions: Overview
2.9K
Electrocyclic reactions are reversible reactions. They involve an intramolecular cyclization or ring-opening of a conjugated polyene. Shown below are two examples of electrocyclic reactions. In the first reaction, the formation of the cyclic product is favored. In contrast, in the second reaction, ring-opening is favored due to the high ring strain associated with cyclobutene formation.
2.9K
Metal-Ligand Bonds
23.8K
The hemoglobin in the blood, the chlorophyll in green plants, vitamin B-12, and the catalyst used in the manufacture of polyethylene all contain coordination compounds. Ions of the metals, especially the transition metals, are likely to form complexes.
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
In these complexes, transition metals form coordinate covalent bonds, a kind of Lewis acid-base interaction in which both of the electrons in the bond are contributed by a donor (Lewis base) to an electron acceptor (Lewis acid). The Lewis acid in...
23.8K


