A5084631013- Catalytic Processes in Materials Science
- Catalysts for Methane Reforming
- Carbon Dioxide Capture Technologies
- Membrane Separation and Gas Transport
- Catalysis and Oxidation Reactions
- Ammonia Synthesis and Nitrogen Reduction
- Catalysis for Biomass Conversion
- Fuel Cells and Related Materials
- Hydrogen Storage and Materials
- Catalysis and Hydrodesulfurization Studies
- Surface Chemistry and Catalysis
- Plasma Applications and Diagnostics
- Advanced Chemical Physics Studies
- Green IT and Sustainability
- Combustion and flame dynamics
- Electrocatalysts for Energy Conversion
- CO2 Reduction Techniques and Catalysts
- nanoparticles nucleation surface interactions
- Iron oxide chemistry and applications
- Context-Aware Activity Recognition Systems
- Gas Sensing Nanomaterials and Sensors
- Advanced oxidation water treatment
- Advanced Polymer Synthesis and Characterization
- Carbon dioxide utilization in catalysis
- Ionic liquids properties and applications
University of Illinois Urbana-Champaign
2024-2025
University of Notre Dame
2019-2024
DEVCOM Army Research Laboratory
2015-2020
Notre Dame of Dadiangas University
2020
Prince George's Community College
2019
Marquette University
2009-2018
Sensors (United States)
2018
Adelphi Laboratory Center
2018
Fritz Haber Institute of the Max Planck Society
2013-2017
National Energy Technology Laboratory
2009-2012
The binding energy of oxygen on Pd nanoparticles was measured by a direct calorimetric method as function the particle size. reduced dimensionality substrate results in two counteracting trends: an increase PdO strength due to change local configuration adsorption site and strong decrease bonding reduction cluster
We present a mechanistic study on selective hydrogenation of acrolein over model Pd surfaces--both single crystal Pd(111) and nanoparticles supported oxide support. show for the first time that C═O bond in to form an unsaturated alcohol is possible with nearly 100% selectivity. However, this process requires very distinct modification surface overlayer oxopropyl spectator species are formed from during initial stages reaction turn metal toward propenol formation. By applying pulsed...
Abstract The ability to prepare high T g low shrinkage thiol–ene materials is attractive for applications such as coatings and dental restoratives. However, thiol nonacrylated vinyl typically consist of a flexible backbone, limiting the utility these polymers. Hence, it importance synthesize investigate varying backbone chemistry stiffness. Here, we effect functionality norbornene resins on polymerization kinetics glass transition temperature ( ) several thiol–norbornene materials. Results...
Abstract We present a mechanistic study on the interaction of water with well‐defined model Fe 3 O 4 (111) surface that was investigated by combination direct calorimetric measurements adsorption energies, infrared vibrational spectroscopy, and calculations bases density functional theory (DFT). show energy (101 kJ mol −1 ) is considerably higher than all previously reported values obtained indirect desorption‐based methods. By employing 18 O‐labeled molecules an substrate, we proved...
Atomistic-level understanding of the interaction α,β-unsaturated aldehydes and their derivatives with late transition metals is fundamental importance for rational design new catalytic materials desired selectivity towards C[double bond, length as m-dash]C vs. m-dash]O bond partial hydrogenation. In this study, we investigate acrolein, its hydrogenation products propanal allyl alcohol, Pd(111) a prototypical system. A combination infrared reflection-absorption spectroscopy (IRAS) temperature...
Cu-based catalysts are highly active and selective for several CO2 conversion reactions; however, traditional monometallic suffer poor thermal stability due to the aggregation of copper particles at high temperatures. In this work, we demonstrate a crystal engineering strategy controllably prepare copper/silica (CuOx/SiO2) reverse water gas shift reaction (RWGS) We show that CuOx/SiO2 derived from in situ reduction pure silicate nanotubes H2 atmosphere exhibit superior catalytic activity...
In this paper an adaptive solution to secure the authentication process of cellular phones has been proposed. Gait and location tracks owner are used as metrics for authentication. The phone is envisioned become a pet animal owner. learns various intrinsic attributes like his voice, face, hand fingerprint geometry interesting patterns in owner's daily life remembers those continually check against any anomalous behavior that may occur due stealing phone. checking done level wise. Higher more...
Broadening of inner molecular orbitals upon adsorption can predict chemoselectivity metal catalysts.
To understand how CO inhibits hydrogen transport across Pd membranes, a 25-μm-thick foil membrane was monitored by infrared-reflection absorption spectroscopy (IRAS) during exposure to H2/CO gas mixtures while the rate of permeation measured simultaneously in 373–533 K temperature range. As coverage on surface increases with increasing concentration and decreasing temperature, decreases. However, addition adsorbing surface, reacts H2 form surface-adsorbed methylene (CH2) species methane...
A volcano-shape propylene production rate trend as Ru loading on CrO<sub>x</sub> catalysts increases for CO<sub>2</sub>-assisted C<sub>3</sub>H<sub>8</sub> dehydrogenation reaction.
The agriculture industry relies on biogenic photosynthesis to meet world demands for carbohydrates that are used food and consumer products. However, this approach requires extensive land water resources, produces significant greenhouse gas (GHG) emissions, pollutes freshwater sources with excess nitrogen fertilizers. As the global population increases, demand will surpass what can supply negative environmental impacts be exacerbated. In principle, edible could synthesized artificially from...
Operando transmission FTIR spectroscopy of amine-functionalized polymer membranes reveals molecular level details CO 2 facilitated transport mechanisms, and the role water in mechanism.
PdCu alloy membranes are promising candidates for hydrogen separation from H2S-containing gas mixtures. Dissociative H2 adsorption and associative desorption important steps in the process of transport across membranes; however, kinetics on surfaces not well understood. In this work, energetics Pd, Cu, investigated by microkinetic analysis H2–D2 exchange (H2 + D2 → 2HD) over fixed beds Pd70Cu30, Pd47Cu53 foils at near-ambient pressure temperatures range 300–900 K. The rate which is least...
Abstract The need for active and stable oxidation catalysts is driven by the demands in production of valuable chemicals, remediation hydrocarbon pollutants energy sustainability. Traditional approaches focus on oxygen-activating oxides as support which provides oxygen activation at catalyst-support peripheral interface. Here we report a new approach to total hydrocarbons (e.g., propane) surface oxygenation platinum (Pt)-alloyed multicomponent nanoparticles platinum-nickel cobalt (Pt–NiCo))....
Identifying the surface processes governing selectivity in hydrogenation of α,β-unsaturated carbonyl compounds on late transition metals is crucial for rational design catalytic materials with desired toward C═C or C═O bond hydrogenation. The partial selective acrolein a Pd(111) single crystal and Fe3O4-supported Pd nanoparticles under well-defined UHV conditions was investigated present study as prototypical reaction. Molecular beam techniques were combined infrared reflection–absorption...
Magnesium-ion-conducting solid polymer electrolytes have been studied for rechargeable Mg metal batteries, one of the beyond-Li-ion systems. In this paper, magnesium with bis(trifluoromethane)sulfonimide (Mg(TFSI) 2 ) salt in poly( ε -caprolactone- co -trimethylene carbonate) (PCL-PTMC) were investigated and compared poly(ethylene oxide) (PEO) analogs. Both thermal properties vibrational spectroscopy indicated that total ion conduction PEO was dominated by anion due to strong coordination...
ADVERTISEMENT RETURN TO ISSUEEditorialNEXTRecent Advances in Plasma CatalysisChang YanChang YanDepartment of Chemical and Biomolecular Engineering, University Notre Dame, Indiana 46556, United StatesMore by Chang Yan, Craig WaittCraig WaittDepartment Chemistry Biochemistry, Waitthttps://orcid.org/0000-0003-4189-4103, Ibukunoluwa AkintolaIbukunoluwa AkintolaDepartment Aerospace Mechanical Akintola, Garam LeeGaram LeeDepartment Leehttps://orcid.org/0000-0002-1549-9321, Justin EasaJustin...