Paper?Like Writable Nanoparticle Network Sheets for Mask?Less MOF Patterning

Geometrical structuring of monolithic metal-organic frameworks (MOFs) components is required for their practical implementation in many areas, including electronic devices, gas storage/separation, catalysis, energy storage as well bio-medical applications. Despite progress MOFs, an approach the precise patterning MOF functional geometries millimeter- to micro-meter depth lacking. Here, a facile and flexible concept microfabrication complex patterns on large surfaces reported. The method relies engineering easily-writable sheets precursor metal oxide nanoparticles. gas-phase conversion these patterned ceramic nanoparticle results objects with arbitrarily shaped thicknesses up hundreds micrometers. writing zeolitic imidazolate framework-8 (ZIF-8) demonstrated by variety approaches ion beam, laser, hand writing. Nanometer-scale are achieved focused beam (FIB). Artless handwritings obtained using pen similar fashion paper. pure ZIF-8 composition resulting confirmed series physical chemical characterization. This precursor-writing provides novel opportunities design MOF-based devices applications ranging from micro-fluidics renewable systems.