CO2 methanation has gained traction for its potential in renewable energy storage, though the high cost of renewable hydrogen production remains a significant barrier to implementation. Herein we present the Ru‐Fe@NCNT catalyst, consisting of ruthenium and iron nanoparticles on nitrogen‐doped carbon nanotubes, as a highly selective, hydrogen efficient, iron‐driven alternative to typical nickel and ruthenium catalysts used for CO and CO2 methanation. Ru‐Fe@NCNTs offer competitive CO2 conversion, improved methane selectivity, 26% higher hydrogen utilisation and an up to 80% reduction in ruthenium loading versus similar literature and commercial catalysts. It is proposed that this desirable CO2 methanation performance is a result of effective cooperation between the iron‐catalysed reverse water gas shift and methane‐selective Fischer‐Tropsch, and ruthenium‐catalysed CO methanation reactions.
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- Centre for Advanced Separations Engineering (CASE)
- Centre for Sustainable and Circular Technologies (CSCT)
- Department of Chemical Engineering - Professor
- Water Innovation and Research Centre (WIRC)
- Centre for Nanoscience and Nanotechnology
- Faculty of Engineering and Design - Deputy Dean
Person: Research & Teaching