Nanocatalysts for Methanation Reaction

Dear Colleagues,

The CO₂ methanation reaction provides an opportunity to utilize CO₂ captured from air or flue gases, as well as H₂ produced from renewables to produce synthetic natural gas, i.e., methane. This provides the opportunity to store the energy generated from renewables via a high energy density carrier, as well as utilize the excess anthropogenic CO₂ and create a closed carbon cycle. The creation of low-cost, efficient, and highly selective catalysts able to convert the majority of CO₂ into CH₄ has received great research attention in recent years. Rh and especially Ru among noble metals, as well as Ni among transition metals, are the most popular active phases for CO₂ methanation. Furthermore, the support type also exerts a great influence, with redox active CeO₂-based supports being proven to boost low temperature catalytic activity and CH₄ selectivity. Many works also focus on the effect of active metal dispersion, the texture of the metal oxide support, the synergetic effect provided by adding two active metal phases, as well as the availability of active sites for CO₂ and H₂ dissociation, respectively.

This Special Issue of Nanomaterials will aim to cover recent advances made in the following fields: Synthesis of nanostructured catalysts with a different texture and morphology; preparation of bimetallic catalysts with a different mix of supported metals; enhancement of defect chemistry of redox-active supports toward boosting low-temperature catalytic activity and selectivity; influence of different preparation methods on active metal dispersion.

Prof. Dr. Maria Goula
Dr. Nikolaos D. Charisiou
Prof. Dr. Kyriaki Polychronopoulou
Guest Editors

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