Semi‐Automatic Deposition of Oriented Cu(OH)₂ Nanobelts for the Heteroepitaxial Growth of Metal–Organic Framework Films (Adv. Mater. Interfaces 21/2021)

Water sensitivity of heteroepitaxial Cu-MOF films: dissolution and re-crystallization of 3D-oriented MOF superstructures

“…2 (a) PXRD patterns of pristine oriented MOF films; (b-e) integrated areas of the dominant MOF reflections: peak areas were set to 100% for the as-synthesized films, then the average peak areas (in %) were calculated from the three replicate samples after exposure to 50% RH, 80% RH, and liquid H 2 O for 1, 3 and 7 days. spectra 23,24,42 to determine the coordination and protonation state of the carboxylic ligands. For the as-synthesized Cu 2 (BDC) 2 lms, the asymmetric and symmetric carboxylate stretching modes were observed at 1579 cm −1 and 1398 cm −1 , respectively.…”

“…Biphenyl-4,4-dicarboxylic acid (H 2 BPDC) was bought from Tokyo Chemical Industry Co. Ltd. Cu(OH) 2 nanobelts (NBs) were prepared and deposited on Si pieces (1.5 × 1.5 cm 2 ) according to previously reported procedures. 19,23 All reagents were used without further purication.…”

“…[19][20][21] In this process, prealigned Cu(OH) 2 nanobelts (NBs) are deposited on a solid support; in the presence of alcoholic solutions with suitable dicarboxylic linkers, 22 the NBs act as source of Cu(II) and sacricial substrate for the epitaxial growth of the MOF coating. 23 The resulting 3D-oriented MOF lms, and more recently 3D-oriented micropatterns, exhibit anisotropy-derived properties, such as guest molecule alignment, polarized uorescence, or polarizationdependent plasmon-resonance, among others. 19,21,[24][25][26] An aspect of MOF devices that requires further study is how the material structure changes under typical working conditions, e.g.…”

Fabrication of Oriented Polycrystalline MOF Superstructures

“…In order to overcome the limitations of the originally reported manual deposition procedure of Cu(OH) 2 nanobelts, Linares et al recently implemented a semi-automatic deposition procedure. [220] By using a dip-coater setup, deposition conditions are described for the consistent fabrication of highquality oriented Cu(OH) 2 films (Figure 10b). For this, different deposition parameters were studied: the film homogeneity and orientation of the resulting samples were optimized.…”

Fully Automated Optimization of Robot‐Based MOF Thin Film Growth via Machine Learning Approaches

“…[ 15–19 ] The growth of oriented MOF thin films on functionalized interfaces is of pronounced interest, as the orientation of these crystalline highly anisotropic compounds strongly influence their performance in several applications. [ 20 ] Also, the integration of MOFs in electronic devices requires the fabrication of well‐defined interfaces between MOFs and electrical conductors. [ 21,22 ] To meet these requirements, a wide variety of synthesis schemes have been developed, including vapor assisted conversion or chemical vapor deposition.…”