A5060526552- Catalytic Processes in Materials Science
- Catalysis and Hydrodesulfurization Studies
- Electrocatalysts for Energy Conversion
- Catalysis for Biomass Conversion
- Catalysts for Methane Reforming
- Catalysis and Oxidation Reactions
- Organometallic Complex Synthesis and Catalysis
- Mesoporous Materials and Catalysis
- Machine Learning in Materials Science
- Nanomaterials for catalytic reactions
- Translation Studies and Practices
- Global Maritime and Colonial Histories
- Japanese History and Culture
- Semiconductor materials and devices
- Carbon dioxide utilization in catalysis
- Advanced Chemical Physics Studies
Columbia University
2021-2025
Due to their role in controlling global climate change, the selective conversion of C
The upgrading of heterocyclic biomass-derived oxygenates such as tetrahydrofurfuryl alcohol (THFA) via ring-opening is a promising pathway to produce value-added diol molecules using renewable carbon sources. This study combines model surface experiments, first-principles calculations, and powder catalyst characterization activity evaluation unravel the nature Pt WOx active sites reaction mechanism THFA on WOx/Pt inverse oxide catalyst. Temperature-programmed desorption (TPD) high-resolution...
Biomass valorization can be used to produce value-added chemicals and fuels from renewable biomass resources by upgrading them via selective bond scission while retaining certain functional groups. Specifically, through the dehydrogenation of alcohols carbonyl compounds has gained interest as a method utilizing biomass-derived additionally producing H2. In this work, isopropanol was probe molecule control selectivity over Fe- Pt-modified molybdenum nitride (Mo2N) model surfaces powder...
Designing efficient ligand-free heterogeneous catalysts for ethylene hydroformylation to produce C3 oxygenates is of importance both fundamental research and practical applications, but it often hindered by insufficient catalytic activity selectivity. This work designs isolated rhodium-cobalt (Rh-Co) sites confined within a ZSM-5 zeolite enhance rates selectivity while maintaining catalyst stability. By adjusting the Co/Al ratio in Co-ZSM-5, different sizes Co are formed; subsequent Rh...
The catalytic upgrading of biomass is an important step toward realizing renewable chemical production. Pt/WOx and the inverse catalyst, WOx/Pt, have been shown to be highly active selective for C–O bond scission various biomass-derived oxygenates. Yet, nature sites detailed reaction mechanisms not well understood. In this study, carbon monoxide isopropyl alcohol (IPA) used as probe molecules study WOx/Pt(111) model surfaces. Temperature-programmed desorption experiments identified two...
Transition metal nitrides are promising catalysts for a variety of reactions. This work outlines their use C 1 molecule upgrading, biomass valorization, and hydrogen evolution, presents challenges future opportunities these catalysts.
Propylene oxide (PO) and 1-epoxy-3-butene (EpB) were used as probe molecules to study the interaction between epoxide ring Pt(111) surface with temperature programmed desorption (TPD) high-resolution electron energy loss spectroscopy (HREELS). The effect of C=C bond on adsorption reaction was investigated by comparing PO EpB. For both molecules, pathways deoxygenation decomposition observed in TPD EpB being more reactive than due presence bond. This supported HREELS measurements, which...