FeOCl and Its Intercalation Compounds: Structures. Properties and Applications

Iron oxychloride( FeOCl) is a typical iron.based material with layered structure. It was discovered in the 1930s. and since the 1970s. has been extensively studied as a unique host in the field of supramolecular intercalation chemistry. The modification of FeOCl is much more flexible and easier than traditional iron (hydr) oxides due to the layered structure. In 2013. our group reported that FeOCl has excellent Fenton.like activity. which shows the promising potentialities for practical applications. Inspired by the properties of FeOCl and encouraged by our result. FeOCl and its intercalation compounds have recently attracted significant attention in catalysis and energy storage. In this review. the characteristics of pristine FeOCl and its intercalation compounds are summarized. especially intercalation.induced crystal and electronic structure changes. And then we focus on the contributions made by these materials toward advanced oxidation processes (AOPs). selective oxidation. electrode materials and other fields. Finally. challenges and future perspectives are reviewed in terms of structural design and the improvement of stability.