Nanocomposites of Graphene Oxide and Metal-Organic Frameworks

Abstract

The state of the art in the field of preparing nanocomposites of graphene oxide with metal-organic frameworks and of studying their structure and properties is discussed. The most efficient method for preparing such nanocomposites is in situ reaction of graphene oxide with precursors of metal-organic frameworks. Electrochemical, mechanochemical, and sonochemical synthesis methods for preparing the nanocomposites were also developed. The post-synthetic method involving preparation of the material from the graphene oxide and metal-organic frameworks prepared in advance is less widely used. The composites are characterized by a sandwich-like structure in which the crystal structure of the initial metal-organic framework is preserved. The composites show promise because of possible synergistic effects between the porous solid (controlled surface area, selectivity, catalytic activity, etc.) and graphene oxide (conductivity, light absorption, mechanical stability, etc.).