Dear Colleagues

Over the last few decades, numerous studies have been published on the use of structured catalysts for various applications, both in the environmental field (NO_x abatement, VOC removal, combustion, etc.) and in the intensification of syngas, hydrogen, and related production processes (reforming, WGS, methanation, etc.). Structured catalysts are typically obtained through the realization of a catalytically active coating on a structured support of the ceramic or metal type. The most studied structured supports are monoliths and foams. Several techniques for the preparation of structured supports have been described; monoliths are generally obtained by extrusion, rolling, and piling of crimped foils, while foams are obtained with the "replication method" or the "bubble generation method". More recently, additive manufacturing techniques have been proposed to obtain conventional structures such as monoliths, and also hybrid structures or more complex geometries, by depositing or sintering materials, based on coordinates derived from a digital model, through a computer-controlled positioning system. Several techniques are used to realize the catalytic coating, including impregnation, washcoating, deposition, and chemical conversion. The choice of the structured support is decisive for the transport phenomena, and the chemical formulation of the coating depends on the intended application. Moreover, the chemical and textural characteristics of the structured support are crucial to the choice of the technique of realization of the coating.

This Special Issue of Compounds covers a wide range of aspects of the realization of structured supports and catalytic coatings and applications in the environmental and catalytic fields. Original research papers, short communications, and review articles are welcome.

Dr. Marco Martino
Guest Editor

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• structured support
• structured catalyst
• coating
• heat transfer
• mass transfer
• additive manufacturing
• 3D printing
• catalysis
• modeling
• simulation