A5004063250- Catalytic Processes in Materials Science
- Zeolite Catalysis and Synthesis
- Metal-Organic Frameworks: Synthesis and Applications
- Electrocatalysts for Energy Conversion
- Catalysis and Oxidation Reactions
- Advanced battery technologies research
- Nanomaterials for catalytic reactions
- Advanced Chemical Physics Studies
- Graphene research and applications
- Superconductivity in MgB2 and Alloys
- Fuel Cells and Related Materials
- Catalysis and Hydrodesulfurization Studies
University of Houston
2017-2020
Carnegie Mellon University
2015-2018
The comparative catalytic activities of iron phosphides, FexP (x = 1–3), have been established with phase-pure material grown by chemical vapor deposition (CVD) from single-source organometallic precursors. This is the first report preparation thin films FeP and Fe2P, their identity was scanning-electron microscopy, X-ray photoelectron spectroscopy, powder diffraction. All materials were deposited on fluorine-doped tin oxide (FTO) for evaluation toward hydrogen evolution reaction (HER) water...
Abstract Bifunctional catalysis in zeolites possessing both Brønsted and Lewis acid sites offers unique opportunities to tailor shape selectivity enhance catalyst performance. Here, we examine the impact of framework extra‐framework gallium species on enriched aromatics production zeolite ZSM‐5. We compare three distinct methods preparing Ga‐ZSM‐5 reveal direct (single step) synthesis leads optimal catalysts compared post‐synthesis methods. Using a combination state‐of‐the‐art...
Abstract The shape selectivity of ZSM‐5 (MFI type) catalysts is ideal for the production C 6 –C 8 aromatics. Developing high‐performance zeolite with improved to aromatics, particularly from diversified (non‐petroleum) feedstocks, has broad commercial appeal. Non‐oxidative coupling (NOC) ethylene was examined over Ag‐ZSM‐5 at 400 °C and shows that Ag + sites promote dehydroaromatization enhanced toluene xylenes. Metal exchange H‐ZSM‐5 results in zoning wherein site density higher on exterior...
Abstract Metal‐exchanged zeolites are complex catalytic systems with great potential for applications in hydrocarbon conversion processes. The numerous combinations of zeotypes and metal‐based Lewis acid motifs create a vast material space that can only be effectively navigated robust structure‐function relationships. Exhaustive modeling extraframework metal sites all crystallographically distinct framework positions is not practical; thus, we quantified the uncertainties arising from use...
Abstract Bifunctional catalysis in zeolites possessing both Brønsted and Lewis acid sites offers unique opportunities to tailor shape selectivity enhance catalyst performance. Here, we examine the impact of framework extra‐framework gallium species on enriched aromatics production zeolite ZSM‐5. We compare three distinct methods preparing Ga‐ZSM‐5 reveal direct (single step) synthesis leads optimal catalysts compared post‐synthesis methods. Using a combination state‐of‐the‐art...