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David Heldebrant

David Heldebrant

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352
(509) 372-6359

Biography

Dr. David J. Heldebrant is currently a Senior Research Scientist in the Materials Chemistry and Surface Research Group in the Energy and Efficiency Division at Pacific Northwest National Laboratory. Dr. Heldebrant joined PNNL as a post-doctoral research scientist in 2005.

Research Interests

  • Dr. Heldebrant’s current research involves the design and development of switchable ionic liquids that chemically capture acid gases such as carbon dioxide and sulfur dioxide from power plant gas emissions. Dr. Heldebrant’s CO2-Binding Organic Liquids (CO2BOLs) have shown potential to capture CO2 and SO2 using up to 50% less energy compared to existing gas capture technologies.
  • Dr. Heldebrant also investigates the physical and chemical properties of amine boranes as potential high energy density fuels for hydrogen fuel cells. Dr. Heldebrant currently works on the synthesis, characterization and performance of amine boranes such as ammonia borane and ammonium borohydride for hydrogen storage applications.

Education and Credentials

  • Ph.D., Organic Chemistry, University of California at Davis, 2005
  • B.S., Fiber and Polymer Science, University of California at Davis, 2001

Affiliations and Professional Service

  • 2001 - current, Member American Chemical Society

PNNL Publications

2014

2013

  • Zhang J, IV Kutnyakov, PK Koech, A Zwoster, CJ Howard, F Zheng, CJ Freeman, and DJ Heldebrant. 2013. "CO2-Binding-Organic-Liquids-Enhanced CO2 Capture using Polarity-Swing-Assisted Regeneration." Energy Procedia 37:285-291.  doi:10.1016/j.egypro.2013.05.113
  • Koech PK, J Zhang, IV Kutnyakov, L Cosimbescu, SJ Lee, ME Bowden, TD Smurthwaite, and DJ Heldebrant. 2013. "Low viscosity alkanolguanidine and alkanolamidine liquids for CO2 capture." RSC Advances 3(2):556 - 572.  doi:10.1039/C2RA22801G

2012

  • Jessop PG, S Mercer, and DJ Heldebrant. 2012. "CO2-Triggered Switchable Solvents, Surfactants, and Other Materials." Energy & Environmental Science 5(6):7240-7253.  doi:10.1039/C2EE02912J

2011

  • Heldebrant DJ, PK Koech, JE Rainbolt, and F Zheng. 2011. "CO2-Binding Organic Liquids, an Integrated Acid Gas Capture System." Energy Procedia 4:216-223.  doi:10.1016/j.egypro.2011.01.044
  • Heldebrant DJ, PK Koech, JE Rainbolt, F Zheng, TD Smurthwaite, CJ Freeman, M Oss, and I Leito. 2011. "Performance of Single-Component CO2-Binding Organic Liquids (CO2BOLs) For Post Combustion CO2 Capture." Chemical Engineering Journal 171(3):794-800.  doi:10.1016/j.cej.2011.02.012
  • Koech PK, DJ Heldebrant, SJ Lee, JE Rainbolt, and TD Smurthwaite. 2011. "Synthesis, characterization and application of alkanolamidines and alkanolguanidines in CO(2) capture." In 241st National Meeting and Exposition of the American Chemical Society, March 27-31, 2011, Anaheim, California, vol. 241, pp. 48-FUEL.  American Chemical Society, Washington, DC. 
  • Koech PK, JE Rainbolt, MD Bearden, F Zheng, and DJ Heldebrant. 2011. "Chemically Selective Gas Sweetening Without Thermal-Swing Regeneration ." Energy & Environmental Science 4(4):1385-1390.  doi:10.1039/c0ee00839g

2010

  • Heldebrant DJ, PK Koech, and CR Yonker. 2010. "A reversible zwitterionic SO2-binding organic liquid." Energy & Environmental Science 3(1):111-113.  doi:10.1039/B916550A
  • Heldebrant DJ, PK Koech, and CR Yonker. 2010. "A reversible zwitterionic SO2-binding organic liquid." Energy & Environmental Science 3(1):111-113.  doi:10.1039/b916550a
  • Heldebrant DJ, PK Koech, CR Yonker, JE Rainbolt, and F Zheng. 2010. "Reversible Acid Gas Capture Using CO2-Binding Organic Liquids." In Preprints of Symposia - American Chemical Society Fuel Chemistry Division, vol. 55, no. 1, pp. 81-82.  American Chemical Society, Washington DC. 
  • Heldebrant DJ, PK Koech, JE Rainbolt, and F Zheng. 2010. "Acid Gas Capture Using CO2-Binding Organic Liquids." In Proceedings of the 2010 Annual Meeting of the AIChE, November 7-12, 2010, Salt Lake City, Utah, p. Paper No. 334d.  American Institute of Chemical Engineers, New York. 
  • Heldebrant DJ, PK Koech, T Ang, C Liang, JE Rainbolt, CR Yonker, and PG Jessop. 2010. "Reversible zwitterionic liquids, the reaction of alkanol guanidines, alkanol amidines, and diamines with CO2 ." Green Chemistry 12(4):713-721.  doi:10.1039/b924790d
  • Bowden ME, DJ Heldebrant, AJ Karkamkar, TE Proffen, GK Schenter, and T Autrey. 2010. "The diammoniate of diborane: Crystal structure and hydrogen release." Chemical Communications 46(45):8564-8566.  doi:10.1039/C0CC03249B
  • King DL, L Zhang, G Xia, AM Karim, DJ Heldebrant, X Wang, TH Peterson, and Y Wang. 2010. "Aqueous Phase Reforming of Glycerol for Hydrogen Production Over Pt-Re Supported on Carbon." Applied Catalysis. B, Environmental 99(1-2):206-213 .  doi:10.1016/j.apcatb.2010.06.021
  • Koech PK, DJ Heldebrant, JE Rainbolt, F Zheng, and TD Smurthwaite. 2010. "Synthesis, characterization and performance of single-component CO2-binding organic liquids (CO2BOL) for post combustion CO2 capture." In Preprints of Symposia, American Chemical Society. Division of Fuel Chemistry, August 22-26, 2010, Boston, MA, vol. 55, no. 2, pp. 553-554.  American Chemical Society, Washington DC. 
  • Rainbolt JE, PK Koech, CR Yonker, F Zheng, D Main, ML Weaver, JC Linehan, and DJ Heldebrant. 2010. "Anhydrous Tertiary Alkanolamines as Hybrid Chemical and Physical CO2 Capture Reagents with Pressure-Swing Regeneration." Energy & Environmental Science 4(2):480-484.  doi:10.1039/C0EE00506A
  • Shaw WJ, ME Bowden, AJ Karkamkar, CJ Howard, DJ Heldebrant, NJ Hess, JC Linehan, and T Autrey. 2010. "Characterization of a New Phase of Ammonia Borane." Energy & Environmental Science 3(6):796-804. 

2009

  • Heldebrant DJ, CR Yonker, PG Jessop, and L Phan. 2009. "CO2-binding organic liquids (CO2BOLs) for post-combustion CO2 capture." In Energy Procedia - Proceedings of the 9th International Conference on Greenhouse Gas Control Technologies (GHGT-9), vol. 1, no. 1, ed. , pp. 1187-1195.  Elsevier, Oxford, United Kingdom.  doi:10.1016/j.egypro.2009.01.156
  • Heldebrant DJ, CR Yonker, PG Jessop, and L Phan. 2009. "Reversible uptake of COS, CS2 and SO2; Ionic liquids with O-alkylxanthate, O-alkylthiocarbonate, and O-alkylsulfite anions." Chemistry - a European Journal 15(31):7619-7627. 
  • Hess NJ, GK Schenter, MR Hartman, LL Daemen, TE Proffen, SM Kathmann, CJ Mundy, MA Hartl, DJ Heldebrant, AC Stowe, and T Autrey. 2009. "Neutron Powder Diffraction and Molecular Simulation Study of the Structural Evolution of Ammonia Borane from 15 to 340 K." Journal of Physical Chemistry A 113(9):5723-5735.  doi:10.1021/jp900839c
  • Karkamkar AJ, SM Kathmann, GK Schenter, DJ Heldebrant, NJ Hess, MS Gutowski, and T Autrey. 2009. "Thermodynamic and Structural Investigations of Ammonium Borohydride, a Solid with a Highest Content of Thermodynamically and Kinetically Accessible Hydrogen." Chemistry of Materials 21(19):4356-4358.  doi:10.1021/cm902385c
  • Pons V, RT Baker, NK Szymczak, DJ Heldebrant, JC Linehan, MH Matus, DJ Grant, and DA Dixon. 2009. "Coordination of aminoborane, NH2BH2, dictates selectivity and extent of H2 release in metal-catalysed ammonia borane dehydrogenation." Chemical Communications 48: 6597-6599.  doi:10.1039/b809190k

2008

  • Heldebrant DJ, AJ Karkamkar, JC Linehan, and T Autrey. 2008. "Synthesis of Ammonia Borane for Hydrogen Storage Applications." Energy & Environmental Science 1(1):156-160. 
  • Heldebrant DJ, AJ Karkamkar, JC Linehan, and T Autrey. 2008. "Synthesis of Ammonia Borane for Hydrogen Storage Applications." Energy & Environmental Science 1(1):156-160.  doi:10.1039/b808865a
  • Heldebrant DJ, AJ Karkamkar, NJ Hess, ME Bowden, SD Rassat, F Zheng, KG Rappe, and T Autrey. 2008. "The Effects of Chemical Additives on the Induction Phase in Solid-State Thermal Decomposition of Ammonia Borane." Chemistry of Materials 20(16):5332-5336.  doi:10.1021/cm801253u
  • Heldebrant DJ, CR Yonker, PG Jessop, and L Phan. 2008. "Organic Liquid CO2 Capture Agents With High Gravimetric CO2 Capacity ." Energy & Environmental Science 1(4):487-493. 
  • Hess NJ, MR Hartman, C Brown, E Mamontov, AJ Karkamkar, DJ Heldebrant, LL Daemen, and T Autrey. 2008. "Quasielastic neutron scattering of -NH3 and -BH3 rotational dynamics in orthorhombic ammonia borane." Chemical Physics Letters 459(1-6):85-88.  doi:10.1016/j.cplett.2008.04.130
  • Shaw WJ, JC Linehan, NK Szymczak, DJ Heldebrant, CR Yonker, DM Camaioni, RT Baker, and T Autrey. 2008. "In Situ Multinuclear NMR Spectroscopic Studies of the Thermal Decomposition of Ammonia Borane in Solution." Angewandte Chemie International Edition 47(39):7493-7496.  doi:10.1002/anie.200802100
  • Zheng F, SD Rassat, DJ Heldebrant, DD Caldwell, CL Aardahl, T Autrey, JC Linehan, and KG Rappe. 2008. "Automated gas burette system for evolved hydrogen measurements." Review of Scientific Instruments 79(8):Article no: 084103.  doi:10.1063/1.2968715

2007

  • Heldebrant DJ, JC Linehan, DM Camaioni, SD Rassat, F Zheng, and T Autrey. 2007. "EFFECT OF ADDITIVES ON THE THERMOLYSIS OF AMMONIA BORANE." In 234th American Chemical Society Conference Proceedings - Reprints of Symposia - Division of Fuel Chemistry., vol. 52, no. 2, pp. 563-564.  American Chemical Society, Washington DC. 

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