High‐Throughput Fabrication of Uniform and Homogenous MOF Coatings

We describe a novel method to produce monolithic, oriented, crystalline and highly porous coatings on solid substrates. By adopting the recently described liquid‐phase epitaxy (LPE) process developed to grow metal‐organic framework coatings (MOFs) on modified Au‐substrates to the spray method, we have prepared thick (μm) layers of several MOF types on modified Au‐substrates, including HKUST‐I and layer‐pillar MOFs. The spray method not only allows such SURMOFs to be grown much faster than with the LPE‐process but the dependence of layer thickness on the number of immersion cycles also provides valuable insights into the mechanism governing the layer‐by‐layer MOF formation process.