FeSx based catalysts for liquid phase hydrogenation of CO2
Abstract
The mineral greigite (Fe3S4) presents similar surface structures to the active sites found in many modern-day enzymes. This inspired researchers to propose FeSx based materials for CO2 conversion. In this presentation, I will present our work on the development of oxidized FeS based catalyst for the liquid phase conversion of CO2 to formates. Surface oxygen in the catalyst play an important role and this will be discussed in this presentation. Inspired by the active sites present in nature, we developed Fe-Ni-S based heterogeneous catalysts for the liquid phase conversion of CO2 to formates. The results from combined theoretical and experimental studies will also be presented.
Bio
Sankar received his undergraduate and postgraduate degrees in chemistry from India and then he moved to the National Chemical Laboratory in Pune (India) for his PhD in Heterogeneous Catalysis. After PhD he moved to Cardiff University to work as a Postdoctoral Research Associate with Prof Graham J. Hutchings FRS. In 2011, he was awarded the prestigious Marie-Curie Intra-European Research Fellow to work at Utrecht University, The Netherlands with Prof. B. M. Weckhuysen. In 2014, he was awarded a University Research Fellowship at Cardiff University to start an independent group. In 2019, he got tenured as a Lecturer in Physical Chemistry at Cardiff University. His research interest is to develop catalytic technologies for a green and sustainable future. He has published more than 75 articles and a co-inventor in two international patents.
Key publications
Mitchell, C. E.et al. 2021. A surface oxidised Fe-S catalyst for the liquid phase hydrogenation of CO2. Catalysis Science and Technology 11, pp. 779-784.
Mitchell, C.et al. 2021. The role of surface oxidation and Fe-Ni synergy in Fe-Ni-S catalysts for CO2 hydrogenation. Faraday Discussions (In Press)
Sankar,M.et al. 2020. Role of the support in gold-containing nanoparticles as heterogeneous catalysts. Chemical Reviews 120(8), pp. 3890-3938.
Macino, M.et al. 2019. Tuning of catalytic sites in Pt/TiO2 catalysts for chemoselective hydrogenation of 3-nitrostyrene. Nature Catalysis 2, pp. 873-881.
Luo, W.et al. 2015. High performing and stable supported nano-alloys for the catalytic hydrogenation of levulinic acid to γ-valerolactone. Nature Communications 6, article number: 6540.
Sankar, M.et al. 2014. The benzaldehyde oxidation paradox explained by the interception of peroxy radical by benzyl alcohol. Nature Communications 5, article number: 3332.
Sankar, M.et al. 2012. Designing bimetallic catalysts for a green and sustainable future. Chemical Society Reviews 41(24), pp. 8099-8139.