Temperature-dependent electromagnetic characterisation of materials for CO₂ capture and utilization

CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> capture and H<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> generation are part of global strategies to mitigate global warming. The use of microwaves for CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> capture and H<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> generation via DRM (Dry Reforming of Methane) is one of the most promising methods for utilizing green energy. To design CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> monolithic sorbents heated by microwaves, careful selection of materials is required to ensure they are chemically active for the expected reaction (DRM or CO<inf xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">2</inf> adsorption) and have suitable electromagnetic properties for efficient heating. This article demonstrates how the electromagnetic properties of various commercial and non-commercial materials have been measured for use in constructing monoliths for microwave power applicators.