Progress on iron-series metal-organic frameworks materials towards electrocatalytic hydrogen evolution reaction

Hydrogen energy is an efficient and environmentally friendly secondary energy source, and electrolysis of water splitting holds great promise as a hydrogen production technology. Developing the high-effective hydrogen evolution electrocatalysts with abundant source is crucial for improving efficiency for electrocatalytic technology. In recent years, Iron-series metal-organic frameworks (MOFs) have attracted significant interest because of their unique design, excellent electrical conductivity, and uniform distribution of functional sites. Therefore, this minireview focuses on the synthesis, mechanism, and application of iron-series MOFs prepared by coupling organic ligands and iron-series metals. Initially, various techniques for iron-series MOF synthesis are presented, followed by an explanation of the morphology and composition of MOFs. After that, the application of H2 evolution based on it is summarized in detail. Lastly, the challenges facing electrocatalytic materials for hydrogen evolution are discussed, alongside the prospects for other MOF materials. We sincerely hope the minireview may have the certain reference value for the great developments of iron-series MOFs in the future research.