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Browsing SoAS - Scholarly Publications by Author "Romanos, J."

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Browsing SoAS - Scholarly Publications by Author "Romanos, J."

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  • Adsorption in nanopores with finite pore walls from truncated graphene 
    Firlej, Lucyna; Jagiello, J.; Kuchta, B.; Romanos, J.; Beckner, M.; Pfeifer, P. (2019-10-14)
    Adsorption mechanism depends on adsorbent geometry. The most important factors defined by geometry are: the surface accessible for adsorption and the distribution of energy of adsorption. In a particular type of pores with ...
  • Analysis of hydrogen sorption characteristics of boron-doped activated carbons 
    Beckner, M.; Romanos, J.; Stalla, D.; Dohnke, E.; Singh, A.; LEe, M.; Suppes, G.; Hawthorne, M.F.; Yu, P.; Wexler, C.; Pfeifer, P. (American Physical Society, 2019-10-14)
    There is significant interest in the properties of boron-doped activated carbons for their potential to improve hydrogen storage. Boron-doped activated carbons have been produced using a novel process involving the pyrolysis ...
  • Different approach to estimation of hydrogen-binding energy in nanospace-engineered activated carbons 
    Firlej, L.; Beckner, M.; Romanos, J.; Pfeifer, P.; Kuchta, B. (2019-10-10)
    Binding energy between adsorbent and adsorbate strongly affects the mechanism of adsorption. Porous systems are usually characterized by a distribution of this energy, which is not easy to determine experimentally. A coupled ...
  • Engineered porous carbon for high volumetric methane storage 
    Romanos, J.; Sweany, S.; Rash, T.; Frilej, L.; Kuchta, B.; Idrobo, J.C.; Pfeifer, P. (2019-10-10)
    This paper covers the optimization of methane volumetric storage capacity by controlling the sub-nanometre (<1 nm) and supra-nanometre (1–5 nm) pore volumes. Nanospace engineering of KOH activated carbon generates an ideal ...
  • Evaluation of the isosteric heat of adsorption at zero coverage for hydrogen on activated carbons 
    Dohnke, E.; Beckner, M.; Romanos, J.; Olsen, R.; Wexler, C.; Pfeifer, P. (2019-10-14)
    Activated carbons made from corn cob show promise as materials for high-capacity hydrogen storage. As part of our characterization of these materials, we are interested in learning how different production methods affect ...
  • A high volume, high throughput volumetric sorption analyzer 
    Soo, Y.C.; Beckner, M.; Romanos, J.; Wexler, C.; Pfeifer, P.; Buckley, P.; Clement, J. (American Physical Society, 2019-10-11)
    In this talk we will present an overview of our new Hydrogen Test Fixture (HTF) constructed by the Midwest Research Institute for The Alliance for Collaborative Research in Alternative Fuel Technology to test activated ...
  • Infrared study of boron–carbon chemical bonds in boron-doped activated carbon 
    Romanos, J.; Beckner, M.; Stalla, D.; Tekeei, A.; Suppes, G.; Jalisagi, S.; Lee, M.; Hawthorne, F.; Robertson, J.D.; Firlej, L.; Kuchta, B.; Wexler, C.; Yu, P.; Pfeifer, P. (2019-10-10)
    We report Fourier transform infrared spectroscopy (FTIR) studies of boron-doped activated carbons. The functional groups for hydrogen adsorption in these materials, the boron-related chemical bonds, are studied by comparing ...
  • Isosteric heats of adsorption for activated carbons made from corn cob 
    Beckner, M.; Oslen, R.; Romanos, J.; Burress, J.; Dohnke, E.; Carter, S.; Casteel, G.; Wexler, C.; Pfeifer, P. (American Physical Society, 2019-10-14)
    Activated carbons made from corn cob show promise as materials for high-capacity hydrogen storage. As part of our characterization of these materials, we are interested in learning how different production methods affect ...
  • Measured enthalpies of adsorption of boron-doped activated carbons 
    Beckner, M.; Romanos, J.; Dohnke, E.; Singh, A.; Schaeperkoetter, J.; Stalla, D.; Burress, J.; Jalisatgi, S.; Suppes, G.; Hawthorne, M.E.; Yu, P.; Wexler, C. (American Physical Society, 2019-10-11)
    There is significant interest in the properties of boron-doped activated carbons for their potential to improve hydrogen storage. ootnotetextMultiply Surface-Functionalized Nanoporous Carbon for Vehicular Hydrogen Storage, ...
  • Microporous carbon monolith synthesis and production for methane storage 
    Tash, T.A.; Gillespie, A.; Holbrook, B.P.; Hiltzik, L.H.; Romanos, J.; Soo, Y.C.; Swearry, S.; Pfeifer, P. (2019-10-10)
    The synthesis, characterization, and performance of a new low pressure, monolithic, activated carbon adsorbent developed for methane storage is discussed and compared to other adsorbents. The effect of particle packing ...
  • Nanoporous graphene monolith for hydrogen storage 
    Romanos, J.; Barakat, F.; Abou Dargham, S. (2019-10-10)
    An overview is given of the development of nanoporous graphene monolith as storage materials for molecular hydrogen for next-generation low-pressure tanks. Compacting activated carbon powder into monolith is an efficient ...
  • Nanospace engineering of KOH activated car 
    Romanos, J.; Beckner, M.; Rash, T.; Firlej, L.; Kuchta, B.; Yu, P.; Suppes, G.; Wexler, C.; Pfeifer, P. (2019-10-11)
    This paper demonstrates that nanospace engineering of KOH activated carbon is possible by controlling the degree of carbon consumption and metallic potassium intercalation into the carbon lattice during the activation ...
  • Nanospace-engineered carbons for reversible storage of natural gas and hydrogen 
    Romanos, J.; Beckner, M.; Rash, T.; Firlej, Lucyna; Kuchta, B.; Yu, P.; Suppes, G.; Pfeifer, P. (2019-10-14)
    Early results on optimization of gravim. excess adsorption for undoped carbons, with KOH activation: 1.Excess adsorption and gravimetric storage capacity both increase with increasing KOH:C ratio and activation temperature. ...
  • Performance of carbon hydrogen storage materials as a function of post-production thermal treatment 
    Dohnke, E.; Romanos, J.; Beckner, M.; Burress, J.W.; Yu, P.; Pfeifer, P. (American Physical Society, 2019-10-11)
    High-surface-area activated carbons for hydrogen storage were investigated as a function of post-synthesis surface treatment. Thermal treatment of the initial carbon in high vacuum at temperatures 200-1000 C leads to ...
  • Record hydrogen storage capacities in advanced carbon storage materials 
    Wexler, C.; Beckner, M.; Romanos, J.; Burress, J.; Kraus, J.; Oslen, R.; Dohnke, E.; Carter, S.; Casteel, G.; Kuchta, B.; Firle, L.; Leimkuehler, E.; Tekeei, A.; Suppes, G.; Pfeifer, P. (American Physical Society, 2019-10-14)
    Carbons can be engineered to achieve exceptional storage capacities: the ALL-CRAFT (www.all-craft.missouri.edu) nanoporous carbon achieves gravimetric excess adsorption of 0.073 kg H2/kg C, gravimetric storage capacity of ...
  • Record methane storage in monolithic and powdered activated carbons 
    Yuchoong, Soo; Nordwald, E.; Hester, B.; Romanos, J.; Isaacson, B.; Stalla, D.; Moore, D.; Kraus, M.; Burress, J.; Dohnke, E.; Pfeifer, P. (American Physical Society, 2019-10-14)
    The Alliance for Collaborative Research in Alternative Fuel Technology (ALL-CRAFT) has developed activated carbons from corn cob as adsorbent materials for methane gas storage by physisorption at low pressures. KOH activated ...
  • Ultrananopores in carbons by boron-neutron capture and their effect on hydrogen storage 
    Romanos, J.; Robertson, D.; Beckner, M.; Kraus, M.; Kuchta, B.; Firlej, L.; Pfeifer, P. (American Physical Society, 2019-10-14)
    The Alliance for Collaborative Research in Alternative Fuel Technology (ALL-CRAFT) has been optimizing high surface area activated carbon nanospaces for high capacity hydrogen storage. Boron doped samples have been prepared ...

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