Related Experiment Video
Updated: May 20, 2025
Synthesis and Performance Characterizations of Transition Metal Single Atom Catalyst for Electrochemical CO2 Reduction
Published on: April 10, 2018
Unlocking the Role of C Doping in a RuO2 Matrix in CO2 Methanation from a Combined Theoretical and Experimental
Alvaro Royo de Larios1, Carmen Tébar-Soler1, Daviel Gómez1
1Instituto de Tecnología Química, Universitat Politècnica de València - Consejo Superior de Investigaciones Científicas, Avenida de los Naranjos s/n, València 46022, Spain.
Abstract:
A new type of ruthenium-based catalyst, labeled RuO C @C, consisting of a combination of metallic ruthenium (Ru0), ruthenium oxide (RuO2), and a ruthenium oxycarbonate phase (RuO2C ) formed by interstitial carbon doped into RuO2, has been recently reported for low-temperature CO2 methanation. Its catalytic activity and long-term stability depend on two competing processes that take place under reaction conditions: RuO2 reduction with H2 to form inactive Ru0 nanoparticles, and C diffusion into RuO2 to form the active oxycarbonate phase. A combination of experimental and computational techniques is applied in this work to investigate the relative rate of both processes in order to identify possible modifications in the catalyst composition that might improve the overall catalytic performance.
