M. Alexander Ardagh
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View article: Catalytic Resonance Theory: Negative Dynamic Surfaces for Programmable Catalysts
Catalytic Resonance Theory: Negative Dynamic Surfaces for Programmable Catalysts Open
Catalysts that change with time via programmed variation of their electronic occupation to accelerate surface reactions were evaluated in the case of negative adsorption energy scaling relations. Defined as the relative change in adsorptio…
View article: Catalytic Resonance Theory: Negative Dynamic Surfaces for Programmable Catalysts
Catalytic Resonance Theory: Negative Dynamic Surfaces for Programmable Catalysts Open
Catalysts that change with time via programmed variation of their electronic occupation to accelerate surface reactions were evaluated in the case of negative adsorption energy scaling relations. Defined as the relative change in adsorptio…
View article: On the Spatial Design of Co-Fed Amines for Selective Dehydration of Methyl Lactate to Acrylates
On the Spatial Design of Co-Fed Amines for Selective Dehydration of Methyl Lactate to Acrylates Open
Co-feeding an inert and site-selective chemical titrant provides desirable selectivity tuning when titrant adsorption is favored over side reaction pathways on a solid acid catalyst. Here, a selectivity enhancement from 61 to 84 C % was de…
View article: On the Spatial Design of Co-Fed Amines for Selective Dehydration of Methyl Lactate to Acrylates
On the Spatial Design of Co-Fed Amines for Selective Dehydration of Methyl Lactate to Acrylates Open
Co-feeding an inert and site-selective chemical titrant provides desirable selectivity tuning when titrant adsorption is favored over side reaction pathways on a solid acid catalyst. Here, a selectivity enhancement from 61 to 84 C % was de…
View article: Kinetics of 2-Methylfuran Acylation with Fatty Acid Anhydrides for Biorenewable Surfactants
Kinetics of 2-Methylfuran Acylation with Fatty Acid Anhydrides for Biorenewable Surfactants Open
Friedel–Crafts acylation using long-chain fatty acid derivatives and biomass-derived furans is the key reaction to produce “alkyl furan ketones”, an important precursor for biorenewable oleo-furan surfactants. In this work, the steady-stat…
View article: Controlled Deposition of Silica on Titania-Silica to Alter the Active Site Surroundings on Epoxidation Catalysts
Controlled Deposition of Silica on Titania-Silica to Alter the Active Site Surroundings on Epoxidation Catalysts Open
Lewis acidic Ti-SiO2 materials are workhorse oxidation catalysts, and they range from microporous substituted zeolites to meso/macroporous materials, often with tradeoffs between steric accessibility and activity. In this study, SiO2 is de…
View article: Electric-Field-Assisted Modulation of Surface Thermochemistry
Electric-Field-Assisted Modulation of Surface Thermochemistry Open
Conventional catalyst design has\nenhanced reactivity and product\nselectivity through the control of surface thermochemistry by tunable\nsurface composition and the surrounding environment (e.g., pore structure).\nIn this work, the prospe…
View article: The Catalytic Mechanics of Dynamic Surfaces: Stimulating Methods for Promoting Catalytic Resonance
The Catalytic Mechanics of Dynamic Surfaces: Stimulating Methods for Promoting Catalytic Resonance Open
Transformational catalytic performance\nin rate and selectivity\nis obtainable through catalysts that change on the time scale of catalytic\nturnover frequency. In this work, dynamic catalysts are defined in\nthe context and history of for…
View article: The Catalytic Mechanics of Dynamic Surfaces: Stimulating Methods for Promoting Catalytic Resonance
The Catalytic Mechanics of Dynamic Surfaces: Stimulating Methods for Promoting Catalytic Resonance Open
Transformational catalytic performance in rate and selectivity is obtainable through catalysts that change on the time scale of catalytic turnover frequency. In this work, dynamic catalysts are defined in the context and history of forced …
View article: The Catalytic Mechanics of Dynamic Surfaces: Stimulating Methods for Promoting Catalytic Resonance
The Catalytic Mechanics of Dynamic Surfaces: Stimulating Methods for Promoting Catalytic Resonance Open
Transformational catalytic performance in rate and selectivity is obtainable through catalysts that change on the time scale of catalytic turnover frequency. In this work, dynamic catalysts are defined in the context and history of forced …
View article: Resonance-Promoted Formic Acid Oxidation via Dynamic Electrocatalytic Modulation
Resonance-Promoted Formic Acid Oxidation via Dynamic Electrocatalytic Modulation Open
It is a truth universally acknowledged that faster catalysts enable more efficient transformation of molecules to useful products and enhance the utilization of natural resources. However, the limit of static catalyst performance defined b…
View article: Catalysis-in-a-Box: Robotic Screening of Catalytic Materials in the Time of COVID-19
Catalysis-in-a-Box: Robotic Screening of Catalytic Materials in the Time of COVID-19 Open
The emergence of a viral pandemic has motivated the transition away from traditional, labor-intensive materials testing techniques to new automated approaches without compromising on data quality and at costs viable for academic laboratori…
View article: Data for: Catalytic Resonance Theory: Negative Dynamic Surfaces for Programmable Catalysts
Data for: Catalytic Resonance Theory: Negative Dynamic Surfaces for Programmable Catalysts Open
Catalysts that change with time via programmed variation of their electronic occupation to accelerate surface reactions were evaluated in the case of negative adsorption energy scaling relations. Defined as the relative change in adsorptio…
View article: Electric-Field Assisted Modulation of Surface Thermochemistry
Electric-Field Assisted Modulation of Surface Thermochemistry Open
Conventional catalyst design has enhanced reactivity and product selectivity through control of surface thermochemistry by tunable surface composition and the surrounding environment (e.g., pore structure). In this work, the prospect for e…
View article: Electric-Field Assisted Modulation of Surface Thermochemistry
Electric-Field Assisted Modulation of Surface Thermochemistry Open
Conventional catalyst design has enhanced reactivity and product selectivity through control of surface thermochemistry by tunable surface composition and the surrounding environment (e.g., pore structure). In this work, the prospect for e…
View article: Resonance-Promoted Formic Acid Oxidation via Dynamic Electrocatalytic Modulation
Resonance-Promoted Formic Acid Oxidation via Dynamic Electrocatalytic Modulation Open
It is a truth universally acknowledged that faster catalysts enable the more efficient transformation of molecules to useful products and enhance the sustainable utilization of natural resources. However, the limit of static catalyst perfo…
View article: Resonance-Promoted Formic Acid Oxidation via Dynamic Electrocatalytic Modulation
Resonance-Promoted Formic Acid Oxidation via Dynamic Electrocatalytic Modulation Open
It is a truth universally acknowledged that faster catalysts enable the more efficient transformation of molecules to useful products and enhance the sustainable utilization of natural resources. However, the limit of static catalyst perfo…
View article: Demonstrating the Critical Role of Solvation in Supported Ti and Nb Epoxidation Catalysts via Vapor-Phase Kinetics
Demonstrating the Critical Role of Solvation in Supported Ti and Nb Epoxidation Catalysts via Vapor-Phase Kinetics Open
Catalytic oxidation of hydrocarbons with hydrogen peroxide (H2O2) has been of the utmost importance for several decades. The vast majority of studies have been performed in the condensed phase, even though condensed phases introduce comple…
View article: Catalytic resonance theory: parallel reaction pathway control
Catalytic resonance theory: parallel reaction pathway control Open
Branched catalytic reaction networks with oscillating chemical pathways perfectly select for reaction products at varying frequency.
View article: Catalysis-in-a-Box: A Micro-flow Catalytic Reactor Integrated within a Gas Chromatograph for Automated Kinetic Measurements
Catalysis-in-a-Box: A Micro-flow Catalytic Reactor Integrated within a Gas Chromatograph for Automated Kinetic Measurements Open
The design and implementation of an autonomous micro-flow-reactor condensing conventional laboratory-scale analogues within a single gas chromatograph (GC) is reported, enabling the control of relevant parameters including reactor temperat…
View article: Catalysis-in-a-Box: Robotic Screening of Catalytic Materials in the Time of COVID-19
Catalysis-in-a-Box: Robotic Screening of Catalytic Materials in the Time of COVID-19 Open
The emergence of a viral pandemic has motivated the transition away from traditional, labor-intensive materials testing techniques to new automated approaches without compromising on data quality and at costs viable for academic laboratori…
View article: Strong electrostatic adsorption of Pt onto SiO2 partially overcoated Al2O3—Towards single atom catalysts
Strong electrostatic adsorption of Pt onto SiO2 partially overcoated Al2O3—Towards single atom catalysts Open
It is frequently desired to synthesize supported metal catalysts that consist of very small clusters or single atoms. In this work, we combine strong electrostatic adsorption (SEA) of H2PtCl6 and engineered oxide supports to ultimately pro…
View article: Catalytic Resonance Theory: Parallel Reaction Pathway Control
Catalytic Resonance Theory: Parallel Reaction Pathway Control Open
Catalytic enhancement of chemical reactions via heterogeneous materials occurs through stabilization of transition states at designed active sites, but dramatically greater rate acceleration on that same active site is achieved when the su…
View article: Catalytic Resonance Theory: Parallel Reaction Pathway Control
Catalytic Resonance Theory: Parallel Reaction Pathway Control Open
Catalytic enhancement of chemical reactions via heterogeneous materials occurs through stabilization of transition states at designed active sites, but dramatically greater rate acceleration on that same active site is achieved when the su…
View article: Catalytic Resonance Theory: SuperVolcanoes, Catalytic Molecular Pumps, and Oscillatory Steady State
Catalytic Resonance Theory: SuperVolcanoes, Catalytic Molecular Pumps, and Oscillatory Steady State Open
Catalytic reactions on surfaces with forced oscillations in physical or electronic properties undergo controlled acceleration consistent with the selected parameters of frequency, amplitude, and external stimulus waveform. In this work, th…
View article: Catalytic Resonance Theory: SuperVolcanoes, Catalytic Molecular Pumps, and Oscillatory Steady State
Catalytic Resonance Theory: SuperVolcanoes, Catalytic Molecular Pumps, and Oscillatory Steady State Open
Catalytic reactions on surfaces with forced oscillations in physical or electronic properties undergo controlled acceleration consistent with the selected parameters of frequency, amplitude, and external stimulus waveform. In this work, th…
View article: Principles of Dynamic Heterogeneous Catalysis: Surface Resonance and Turnover Frequency Response
Principles of Dynamic Heterogeneous Catalysis: Surface Resonance and Turnover Frequency Response Open
Acceleration\nof the catalytic transformation of molecules via heterogeneous\nmaterials occurs through design of active binding sites to optimally\nbalance the requirements of all steps in a catalytic cycle. In accordance\nwith the Sabatie…