Search Results - "Pfromm, Peter H"

An Ionicity Rationale to Design Solid phase Metal Nitride Reactants for Solar Ammonia Production by Michalsky, Ronald, Pfromm, Peter H

“…Ammonia provides the basis of nutrition for a large portion of the human population on earth and could be used additionally as a convenient hydrogen carrier…”
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Chromium as reactant for solar thermochemical synthesis of ammonia from steam, nitrogen, and biomass at atmospheric pressure by Michalsky, Ronald, Pfromm, Peter H.

“…► Conceptual reactant and process improvements of solar-driven NH 3 synthesis at 1 bar. ► Cr readily fixes N 2 forming nitrides. ► Corrosion kinetics limits Cr…”
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Rational design of metal nitride redox materials for solar-driven ammonia synthesis by Michalsky, Ronald, Pfromm, Peter H., Steinfeld, Aldo

“…Fixed nitrogen is an essential chemical building block for plant and animal protein, which makes ammonia (NH3) a central component of synthetic fertilizer for…”
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Thermodynamics of metal reactants for ammonia synthesis from steam, nitrogen and biomass at atmospheric pressure by Michalsky, Ronald, Pfromm, Peter H.

“…Catalytic ammonia synthesis at approximately 30 MPa and 800 K consumes about 5% of the global annual natural gas production causing significant CO2 emissions…”
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Sustainability of algae derived biodiesel: A mass balance approach by Pfromm, Peter H., Amanor-Boadu, Vincent, Nelson, Richard

“…A rigorous chemical engineering mass balance/unit operations approach is applied here to bio-diesel from algae mass culture. An equivalent of 50,000,000…”
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Bio-butanol vs. bio-ethanol: A technical and economic assessment for corn and switchgrass fermented by yeast or Clostridium acetobutylicum by Pfromm, Peter H., Amanor-Boadu, Vincent, Nelson, Richard, Vadlani, Praveen, Madl, Ronald

“…Fermentation-derived butanol is a possible alternative to ethanol as a fungible biomass-based liquid transportation fuel. We compare the fermentation-based…”
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Effect of water activity on the lipase catalyzed esterification of geraniol in ionic liquid [bmim]PF6 by Barahona, Donifan, Pfromm, Peter H., Rezac, Mary E.

“…Enzymatic reactions in non‐aqueous media have been shown to be effective in carrying out chemical transformation where the reactants are insoluble in water or…”
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Activating dinitrogen for chemical looping ammonia synthesis: nitridation of manganese by Mohammadi Aframehr, Wrya, Pfromm, Peter H.

“…The earth-abundant transition metal manganese (Mn) has been shown to be useful to activate dinitrogen at atmospheric pressure and elevated temperature by…”
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Accelerated Physical Aging of Thin Poly[1-(trimethylsilyl)-1-propyne] Films by Dorkenoo, Kokou D, Pfromm, Peter H

“…We present results for physical aging of films made from a high free volume polymer (poly[1-(trimethylsilyl)-1-propyne], PTMSP). Aging was tracked by gas…”
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Chemical Looping of Manganese to Synthesize Ammonia at Atmospheric Pressure: Sodium as Promoter by Aframehr, Wrya Mohammadi, Huang, Chaoran, Pfromm, Peter H.

“…Affordable synthetic ammonia (NH3) enables the production of nearly half of the food we eat and is emerging as a renewable energy carrier. Sodium‐promoted…”
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Solar thermochemical production of ammonia from water, air and sunlight: Thermodynamic and economic analyses by Michalsky, Ronald, Parman, Bryon J., Amanor-Boadu, Vincent, Pfromm, Peter H.

“…Ammonia is an important input into agriculture and is used widely as base chemical for the chemical industry. It has recently been proposed as a sustainable…”
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Thermochemical Synthesis of Ammonia and Syngas from Natural Gas at Atmospheric Pressure by Heidlage, Michael G, Kezar, Elizabeth A, Snow, Kyle C, Pfromm, Peter H

“…Ammonia is a vital agricultural input and could be a carbon-free energy vector. An experimental proof-of-concept of a novel thermochemical cycle to produce NH3…”
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Purification of the baculovirus Autographa californica M nucleopolyhedrovirus by tangential flow ultrafiltration by Michalsky, Ronald, Passarelli, A. Lorena, Pfromm, Peter H., Czermak, Peter

“…Membrane-based virus filtration is used in biotechnological processes due to advantages such as easy scale-up but is currently lacking standardized validation…”
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Economic feasibility of algal biodiesel under alternative public policies by AMANOR-BOADU, Vincent, PFROMM, Peter H, NELSON, Richard

“…The motivation for this research was to determine the influence of public policies on economic feasibility of producing algal biodiesel in a system that…”
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Aqueous phase hydrogenation of levulinic acid using a porous catalytic membrane reactor by Stanford, John P., Soto, Michelle C., Pfromm, Peter H., Rezac, Mary E.

“…[Display omitted] •PTFE membrane reactor was used for aqueous phase hydrogenation of levulinic acid.•Porous PTFE acted as gas/liquid phase contacting…”
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Effect of vapor phase ethylenediamine crosslinking of matrimid on alcohol vapor sorption and diffusion by Stanford, John P., Pfromm, Peter H., Rezac, Mary E.

“…ABSTRACT This work examines the sorption, diffusion, and polymer relaxation behavior for water and C1‐C7 alcohol vapors at 30  °C in ethylenediamine…”
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Hydrolases on silica surfaces: Coverage-activity–molecular property relationships revealed by Cruz, Juan C., Pfromm, Peter H., Szoszkiewicz, Robert, Rezac, Mary E.

“…•A novel surface–protein and protein–protein interaction model is confirmed.•The model correlates surface coverage and changes in conformation and…”
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Conformational changes and catalytic competency of hydrolases adsorbing on fumed silica nanoparticles: I. Tertiary structure by Cruz, Juan C., Pfromm, Peter H., Tomich, John M., Rezac, Mary E.

“…We have recently introduced an immobilization protocol for preparations of enzymes on fumed silica for catalysis in organic solvents. The observation of a…”
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Kinetic and equilibrium sorption of organic liquids and vapors in Matrimid by Stanford, John P., Maier, Anne L., McDonald, Lauren A., Pfromm, Peter H., Rezac, Mary E.

“…This work examines the kinetic and equilibrium sorption characteristics of a variety of chemical penetrants in the polyimide polymer Matrimid. Liquid…”
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Rapid synthesis of nanocrystalline magnesium chromite and ferrite ceramics with concentrated sunlight by Michalsky, Ronald, Peterson, Brian A., Pfromm, Peter H.

“…•Refractory ceramics are produced via rapid solar-thermal processing.•The formed chromite and ferrite spinels have a high specific surface area.•The presence…”
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