Focus: Hydrogen Storage/Carriers and Purification Materials
Lab PI: Godwin Severa
The Novel Energy Materials Laboratory's main areas of research are:
- Novel, reversible hydrogen storage materials for onboard fuel cell vehicle application,
- Advanced hydrogen carrier materials for hydrogen transport and delivery,
- Reversible acid gas capture, sorbent materials for gas purification applications,
- Regenerable inorganic draw solute materials for forward osmosis water purification.
- Fritsch Planetary Micro Mill PULVERISETTE 7 premium line
- Sieverts-type gas sorption analyzer PCT-Pro E&E
- Custom design low flow acid gas sorption analyzer
- Inert Inc. argon glove box, with ppm level oxygen and water analyzers and –35 °C freezer
- High pressure Parr Inc. reactor systems
- MTI inert atmosphere mini tube furnace
- Chemglass Schlenk Line Manifold
- ThermoFisher Nicolet iS 10 FTIR spectrometer with a Diamond ATR crystal attachment
- TA Instruments SDT Q600, simultaneous TGA-DSC
- High Pressure DSC • Buchi R-300 rotovapor system
- Inert Atmosphere operated Ultra-sonicator
- Vacuum drying oven
- U.S. Department of Energy HYMARC National Laboratories Consortium (SNL, NREL, LLNL and PNNL)
- Hagemann Lab, University of Geneva, Switzerland
- Merlin Lab, University of New South Wales, Australia
- University of Hawaii Labs: Dera (HIGP), Jensen (Dept. Chemistry), Brown (ME) and Ishii (HIGP)
Current Projects and Funding
- Development of magnesium boride etherates as hydrogen storage materials (DOE-EERE, Hydrogen Storage)
The objective of the project is to synthesize and characterize novel modified MgB2 materials with improved hydrogen cycling kinetics and hydrogen storage capacities and demonstrate their capability to meet the Department of Energy (DOE) hydrogen storage targets. If successful, the solid-state modified MgB2 materials would be safer and cheaper than the high pressure compressed H2 (700 bar) or liquid H2 alternative onboard vehicle hydrogen storage systems on the market.
- Fostering a Guiding Multiscale Model for the Development of Advanced MgB2 Hydrogen Storage Materials (DOE-BES, EPSCoR)
The project seeks to obtain key information that can be used for the development of a comprehensive, multi-scale computational model of reversible hydrogenation of MgB2 to Mg(BH4)2 inorder to accelerate materials discoveries. The project provides excellent training on state-of-the-art instrumentation to the participating UH graduate students, postdoc fellows, and early career scientists, and enhances research competitiveness at UH by strengthening ties with national labs and establishing new research capabilities.
- Development of Magnesium Borane Containing Solutions of Furans and Pyrroles as Reversible Liquid Hydrogen Carriers (DOE-EERE, H2 @ Scale)
The project targets the generation of two-way LOHCs by charging selected furans and pyrroles with Mg(BH4)2. The resulting LOHC solutions have adequate hydrogen storage densities to enable practically viable bulk storage and transport of hydrogen, with potential for greater energy efficiency and lower delivery costs than conventional compressed H2 gas transport technology. The development of energy efficient, low cost hydrogen carriers is essential for the continued rapid expansion of fuel cell based technologies.
- Filtration Technology: Development of Novel Energy Materials. (DOD-ONR, APRISES)
The objective of the project is the design, synthesis and characterization of novel, reversible high-performance acid gas (SOx, NOx and H2S) contaminant sorbent materials. The materials under development will enable fuel cell vehicles to be efficiently operated under harsh atmospheric air environments, and assist the fuel cell filter industry in reducing environmental contamination from hazardous absorbent waste.
- 2019, G. Severa, C. Jensen, C. Sugai, S. Kim, S. Kang, B. Wood, J. White, T. Gennett, N. Leick, V. Stavila, M. Martinez, Modified MgB2 for Moderate Temperature and Pressure Hydrogenation to Mg(BH4)2, Presented at the 13th International Symposium Hydrogen & Energy, Incheon, South Korea, Jan 20-25.
- 2019, G. Severa, Advances in Gas Filtration Materials Research: Fuel Cell Air Purification Challenge?, Presented at the American Filtration & Separations Society FiltCon Conference, Cherry Hill, New Jersey, April 1-3.
- 2019, C. Sugai, S. Kim, G. Severa, J. L. White, N. Leick, M. B. Martinez, T. Gennett, V. Stavila, and C. Jensen, Kinetic Enhancement of Direct Hydrogenation of MgB2 to Mg(BH4)2 upon Mechanical Milling with THF, MgH2, and/or Mg, ChemPhysChem, Vol. 20, pp. 1-5.
- 2018, G. Severa, C.M. Jensen, Development of Magnesium Boride Etherates as Hydrogen Storage Materials, DOE Annual Merit Review, June 13-15.
- 2018, G. Severa, J. Head, K. Bethune, S. Higgins, A. Fujise, Comparative studies of low concentration SO2 and NO2 sorption by activated carbon supported [C2mim][Ac] and KOH sorbents, Journal of Environmental Chemical Engineering, Vol. 6, Issue 1, pp. 718-727.
- 2017, R.C. Ordonez, C.K. Hayashi, C.M. Torres, J.L. Melcher, N. Kamin, G. Severa, D. Garmire, Rapid Fabrication of Graphene Field-Effect Transistors with Liquid-metal Interconnects and Electrolytic Gate Dielectric Made of Honey, Nature: Scientific Reports, Vol. 7, Article 10171.
- 2015, G. Severa, K. Bethune, R. Rocheleau, S. Higgins, SO2 sorption by activated carbon supported ionic liquids under simulated atmospheric conditions, Chemical Engineering Journal, Vol. 265, pp. 249-258.