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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 a Chief Scientist and Team Lead of the Separations Materials team under the Advanced Energy Systems Group in the Energy Processes and Materials 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 focuses on applying the principles of Green Chemistry to improve atom and energy efficiency and reduce toxicity of chemical processes and to make energy-related process more environmentally benign. Focus areas are on developing materials that can perform multiple tasks to reduce waste and improve energy efficiency in the fields of chemical separations and chemical conversions, applying these principles in areas of industrial gas separations, liquid/liquid separations and catalysis. The work focuses on the development of organic gas-separating liquids that can chemical remove CO2, SOx, and H2S from combustion, gasification or natural gas streams through applied and fundamental studies of gas absorption kinetics, thermodynamics and mechanistic studies.

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

  • Member of the American Chemical Society (ACS), 2005 – present.
  • Chair of the Richland, WA ACS Local Section, 2012.
  • Alternate Councilor of the Richland, WA ACS Local Section, 2017-present.
  • Chair of the ACS Energy and Fuels Division, to be served in 2019

Awards and Recognitions

  • Pacific Northwest National Laboratory’s Ronald L. Brodzinski Award for Early Career Exceptional Achievement (2011).
  • Undergraduate of the year (2001) by the American Association of Textile Colorists & Chemists
  • Innovation Magazine: "The Best and Brightest Innovators in The Energy Labs," April/May 2010.

PNNL Patents

PNNL Publications

2021

  • Jiang Y., P.M. Mathias, C.J. Freeman, R.F. Zheng, G.A. Whyatt, D.J. Heldebrant, and J. Swisher. 2021. "Techno-Economic Comparison of Various Process Configurations for Post-Combustion Carbon Capture Using a Single-Component Water-Lean Solvent." International Journal of Greenhouse Gas Control 106. PNNL-SA-156565. doi:10.1016/j.ijggc.2021.103279

2020

  • Banuelos J.L., M. Lee, M. Nguyen, D. Zhang, D. Malhotra, D. Cantu Cantu, and V. Glezakou, et al. 2020. "Subtle Changes in Hydrogen Bond Orientation Result in Glassification of Carbon Capture Solvents." Physical Chemistry Chemical Physics. PCCP 22, no. 34:19009-19021. PNNL-SA-153262. doi:10.1039/D0CP03503C
  • Heldebrant D.J., and J. Kothandaraman. 2020. "Solvent-Based Absorption." In Carbon Capture and Storage: RSC Energy and Environment Series, edited by M. Bui and N MacDowell. 36-68. Cambridge:Royal Society of Chemistry. PNNL-SA-137049. doi:10.1039/9781788012744-00036
  • Kothandaraman J., and D.J. Heldebrant. 2020. "Catalytic coproduction of methanol and glycol in one pot from epoxide, CO2, and H2." RSC Advances 10, no. 69:42557-42563. PNNL-SA-153614. doi:10.1039/D0RA09459E
  • Kothandaraman J., and D.J. Heldebrant. 2020. "Towards environmentally benign capture and conversion: Heterogeneous metal catalyzed CO2 hydrogenation in CO2 capture solvents." Green Chemistry 22, no. 3:828-834. PNNL-SA-148329. doi:10.1039/C9GC03449H
  • Zheng R.F., D. Barpaga, P.M. Mathias, D. Malhotra, P.K. Koech, Y. Jiang, and M. Bhakta, et al. 2020. "A Single-Component Water-Lean Post-Combustion CO2 Capture Solvent with Exceptionally Low Operational Heat and Total Costs of Capture - Comprehensive Experimental and Theoretical Evaluation." Energy & Environmental Science 13, no. 11:4106-4113. PNNL-SA-153508. doi:10.1039/D0EE02585B

2019

  • Cabral R.P., D.J. Heldebrant, and N. Mac Dowell. 2019. "A techno-economic analysis of a novel solvent-based oxycombustion CO2 capture process." Industrial Engineering Chemistry Research 58, no. 16:6604-6612. PNNL-SA-148334. doi:10.1021/acs.iecr.9b00305
  • Grubel K., W. Chouyyok, D.J. Heldebrant, J.C. Linehan, and J.T. Bays. 2019. "Octane-On-Demand: Onboard Separation of Oxygenates from Gasoline." Energy and Fuels 33, no. 3:1869-1881. PNNL-SA-138442. doi:10.1021/acs.energyfuels.8b03781
  • Kothandaraman J., J. Zhang, V. Glezakou, M.T. Mock, and D.J. Heldebrant. 2019. "Chemical Transformations of Captured CO2 into Cyclic and Polymeric Carbonates." Journal of CO2 utilization 32. PNNL-SA-139496. doi:10.1016/j.jcou.2019.04.020
  • Malhotra D., D. Cantu Cantu, P.K. Koech, D.J. Heldebrant, A.J. Karkamkar, F. Zheng, and M.D. Bearden, et al. 2019. "Directed Hydrogen Bond Placement: Low Viscosity Amine Solvents for CO2 Capture." ACS Sustainable Chemistry & Engineering 7, no. 8:7535-7542. PNNL-SA-139613. doi:10.1021/acssuschemeng.8b05481
  • Mehta H.S., Y. Chen, J.A. Sears, E.D. Walter, M. Campos, J. Kothandaraman, and D.J. Heldebrant, et al. 2019. "A Novel High-Temperature MAS Probe with Optimized Temperature Gradient across Sample Rotor for In-situ Monitoring of High-Temperature High-Pressure Chemical Reactions." Solid State Nuclear Magnetic Resonance 102. PNNL-SA-143153. doi:10.1016/j.ssnmr.2019.06.003
  • Zheng J., X. Yu, M. Nguyen, D.B. Lao, Y. Zhu, F. Wang, and D.J. Heldebrant. 2019. "Assessing the Impacts of Dynamic Soft-Template Innate to Switchable Ionic Liquids on Nanoparticulate Green Rust Crystalline Structures." Chemical Communications 55, no. 75:11239-11242. PNNL-SA-144215. doi:10.1039/C9CC04581C

2018

  • Kothandaraman J., R.A. Dagle, V. Dagle, S.D. Davidson, E.D. Walter, S.D. Burton, and D.W. Hoyt, et al. 2018. "Condensed-Phase Low Temperature Heterogeneous Hydrogenation of CO2 to Methanol." Catalysis Science & Technology 8, no. 19:5098-5103. PNNL-SA-133245. doi:10.1039/C8CY00997J
  • Leclaire J., and D.J. Heldebrant. 2018. "A Call to (Green) Arms: A Rallying Cry for Green Chemistry and Engineering for CO2 Capture, Utilisation and Storage." Green Chemistry 20, no. 22:5058-5081. PNNL-SA-136095. doi:10.1039/C8GC01962B
  • Shao H., S. Kabilan, M.I. Childers, S.A. Stephens, N. Suresh, A.N. Beck, and T. Varga, et al. 2018. "Corrigendum to "Environmentally friendly, rheoreversible, hydraulic fracturing fluids for enhanced geothermal systems" [Geothermics 58 (2015) 22-31]." Geothermics 72. PNNL-SA-134510. doi:10.1016/j.geothermics.2017.12.002
  • Yu X., J. Yao, D.B. Lao, D.J. Heldebrant, Z. Zhu, D. Malhotra, and M. Nguyen, et al. 2018. "Mesoscopic Structure Facilitates Rapid CO2 Transport and Reactivity in CO2 Capture Solvents." The Journal of Physical Chemistry Letters 9, no. 19:5765-5771. PNNL-SA-129707. doi:10.1021/acs.jpclett.8b02231

2017

  • Cantu Cantu D., D. Malhotra, P.K. Koech, D.J. Heldebrant, F. Zheng, C.J. Freeman, and R.J. Rousseau, et al. 2017. "Integrated Solvent Design for CO2 Capture and Viscosity Tuning." Energy Procedia 114. PNNL-SA-121494. doi:10.1016/j.egypro.2017.03.1215
  • Davidson C.L., D.J. Heldebrant, M.D. Bearden, J.A. Horner, and C.J. Freeman. 2017. "Enabling CCS via low-temperature geothermal energy integration for fossil-fired power generation." Energy Procedia 114. PNNL-SA-126701. doi:10.1016/j.egypro.2017.03.1781
  • Heldebrant D.J., P.K. Koech, R.J. Rousseau, V. Glezakou, D. Cantu Cantu, D. Malhotra, and F. Zheng, et al. 2017. "Are Water-Lean Solvent Systems Viable for Post-Combustion CO2 Capture?." Energy Procedia 114. PNNL-SA-121489. doi:10.1016/j.egypro.2017.03.1218
  • Heldebrant D.J., P.K. Koech, V. Glezakou, R.J. Rousseau, D. Malhotra, and D. Cantu Cantu. 2017. "Water-Lean Solvents for Post-Combustion CO2 Capture: Fundamentals, Uncertainties, Opportunities and Outlook." Chemical Reviews 117, no. 14:9594-9624. PNNL-SA-122499. doi:10.1021/acs.chemrev.6b00768
  • Malhotra D., J.P. Page, M.E. Bowden, A.J. Karkamkar, D.J. Heldebrant, V. Glezakou, and R.J. Rousseau, et al. 2017. "Phase-Change Aminopyridines as Carbon Dioxide Capture Solvents." Industrial and Engineering Chemistry Research 56, no. 26:7534-7540. PNNL-SA-124645. doi:10.1021/acs.iecr.7b00874
  • Malhotra D., P.K. Koech, D.J. Heldebrant, D. Cantu Cantu, F. Zheng, V. Glezakou, and R.J. Rousseau. 2017. "Reinventing design principles for developing low-viscosity carbon dioxide-binding organic liquids for flue gas clean up." ChemSusChem 10, no. 3:636-642. PNNL-SA-121959. doi:10.1002/cssc.201601622
  • Whyatt G.A., A. Zwoster, F. Zheng, R.J. Perry, B.R. Wood, I. Spiry, and C.J. Freeman, et al. 2017. "Measuring CO2 and N2O Mass Transfer into GAP-1 CO2-Capture Solvents at Varied Water Loadings." Industrial Engineering Chemistry Research 56, no. 16:4830-4836. PNNL-SA-123483. doi:10.1021/acs.iecr.7b00193
  • Yao J., D. Lao, X. Sui, Y. Zhou, S.K. Nune, X. Ma, and T. Troy, et al. 2017. "Two Coexisting Liquid Phases in Switchable Ionic Liquids." Physical Chemistry Chemical Physics. PCCP 19, no. 34:22627-22623. PNNL-SA-122167. doi:10.1039/C7CP03754F
  • Yao J., Y. Zhou, X. Sui, D. Lao, D.J. Heldebrant, Z. Zhu, and X. Yu. 2017. "Errata: Switchable 1, 8-diazabicycloundec-7-ene and 1-hexanol ionic liquid analyzed by liquid ToF-SIM." Surface Science Spectra 24, no. 1:018001. PNNL-SA-124584. doi:10.1116/1.4978877

2016

  • Bearden M.D., C.L. Davidson, J.A. Horner, D.J. Heldebrant, and C.J. Freeman. 2016. Techno-Economic Analysis of Integration of Low-Temperature Geothermal Resources for Coal-Fired Power Plants. PNNL-24879. Richland, WA: Pacific Northwest National Laboratory. Techno-Economic Analysis of Integration of Low-Temperature Geothermal Resources for Coal-Fired Power Plants
  • Cantu Cantu D., D. Malhotra, P.K. Koech, D.J. Heldebrant, F. Zheng, C.J. Freeman, and R.J. Rousseau, et al. 2016. "Structure-Property Reduced Order Model for Viscosity Prediction in Single-Component CO2- Binding Organic Liquids." Green Chemistry 18, no. 22:10.1039/C6GC02203K. PNNL-SA-119405. doi:10.1039/c6gc02203k
  • Cantu Cantu D., J. Lee, M. Lee, D.J. Heldebrant, P.K. Koech, C.J. Freeman, and R.J. Rousseau, et al. 2016. "Dynamic Acid/Base Equilibrium in Single Component Switchable Ionic Liquids and Consequences on Viscosity." Journal of Physical Chemistry Letters 7, no. 9:1646-1652. PNNL-SA-114453. doi:10.1021/acs.jpclett.6b00395
  • Heldebrant D.J. 2016. Geothermal Power Generation and CO2 Capture Co-Production, Q1 FY15 Report. PNNL-24084. Richland, WA: Pacific Northwest National Laboratory. Geothermal Power Generation and CO2 Capture Co-Production, Q1 FY15 Report
  • Heldebrant D.J. 2016. Geothermal Power Generation and CO2 Capture Co-Production. PNNL-24279. Richland, WA: Pacific Northwest National Laboratory. Geothermal Power Generation and CO2 Capture Co-Production
  • Heldebrant D.J., P.K. Koech, R.J. Rousseau, and V.A. Glezakou. 2016. Accelerating the Development of “Transformational” Solvents for CO2 Separations, Quarterly Progress Report, Budget Period 1, Q3, 2014. PNNL-24285. Richland, WA: Pacific Northwest National Laboratory. Accelerating the Development of “Transformational” Solvents for CO2 Separations, Quarterly Progress Report, Budget Period 1, Q3, 2014
  • Heldebrant D.J., P.K. Koech, R.J. Rousseau, and V.A. Glezakou. 2016. Accelerating the Development of “Transformational” Solvents for CO2 Separations, Quarterly Progress Report, Budget Period 2, Q5, 2015. PNNL-24860. Richland, WA: Pacific Northwest National Laboratory. Accelerating the Development of “Transformational” Solvents for CO2 Separations, Quarterly Progress Report, Budget Period 2, Q5, 2015
  • Heldebrant D.J., P.K. Koech, R.J. Rousseau, and V.A. Glezakou. 2016. Accelerating the Development of “Transformational” Solvents for CO2 Separations. PNNL-24032. Richland, WA: Pacific Northwest National Laboratory. Accelerating the Development of “Transformational” Solvents for CO2 Separations
  • Heldebrant D.J., R.J. Rousseau, and V.A. Glezakou. 2016. Accelerating the Development of “Transformational” Solvents for CO2 Separations Quarterly Progress Report, Budget Period 1, Q4, 2015. PNNL-24530. Richland, WA: Pacific Northwest National Laboratory. Accelerating the Development of “Transformational” Solvents for CO2 Separations Quarterly Progress Report, Budget Period 1, Q4, 2015
  • Lao D., B.R. Galan, J.C. Linehan, and D.J. Heldebrant. 2016. "The steps of activating a prospective CO2 hydrogenation catalyst with combined CO2 capture and reduction." Green Chemistry 18, no. 18:4871-4874. PNNL-SA-119105. doi:10.1039/C6GC01800A
  • Lao D., R.K. Kukkadapu, L. Kovarik, B.W. Arey, D.J. Heldebrant, and S.K. Nune. 2016. "Switchable Ionic Liquids: An Environmentally-friendly Medium to Synthesize Nanoparticulate Green Rust." Current Inorganic Chemistry 6, no. 2:92-99. PNNL-SA-110524. doi:10.2174/1877944106999160317160621
  • Nune S.K., D. Lao, D.J. Heldebrant, J. Liu, M.J. Olszta, R.K. Kukkadapu, and L.M. Gordon, et al. 2016. "Anomalous Water Expulsion from Carbon-Based Rods at High Humidity." Nature Nanotechnology 11, no. 9:791-797. PNNL-SA-112991. doi:10.1038/nnano.2016.91
  • Whyatt G.A., C.J. Freeman, A. Zwoster, and D.J. Heldebrant. 2016. "Measuring Nitrous Oxide Mass Transfer into Non-Aqueous CO2BOL CO2 Capture Solvents." Industrial and Engineering Chemistry Research 55, no. 16:4720-4725. PNNL-SA-115599. doi:10.1021/acs.iecr.6b00390
  • Yao J., Y. Zhou, X. Sui, D. Lao, D.J. Heldebrant, Z. Zhu, and X. Yu. 2016. "Switchable 1,8-diazabicycloundec-7-ene and 1-hexanol ionic liquid analyzed by liquid ToF-SIMS." Surface Science Spectra 23, no. 1:9-28. PNNL-SA-114576. doi:10.1116/1.4948526
  • Zheng F., D.J. Heldebrant, P.M. Mathias, P.K. Koech, M. Bhakta, C.J. Freeman, and M.D. Bearden, et al. 2016. "Bench-Scale Testing and Process Performance Projections of CO2 Capture by CO2-Binding Organic Liquids (CO2BOLs) With and Without Polarity-Swing-Assisted Regeneration." Energy and Fuels 30, no. 2:1192-1203. PNNL-SA-113072. doi:10.1021/acs.energyfuels.5b02437
  • Zhou Y., J. Yao, Y. Ding, J. Yu, X. Hua, J.E. Evans, and X. Yu, et al. 2016. "Improving the Molecular Ion Signal Intensity for In Situ Liquid SIMS Analysis." Journal of the American Society for Mass Spectrometry 27, no. 12:2006-2013. PNNL-SA-118036. doi:10.1007/s13361-016-1478-x

2015

  • Jung H., K. Carroll, S. Kabilan, D.J. Heldebrant, D.W. Hoyt, L. Zhong, and T. Varga, et al. 2015. "Stimuli-Responsive/Rheoreversible Hydraulic Fracturing Fluids as a Greener Alternative to Support Geothermal and Fossil Energy Production." Green Chemistry 17, no. 5:2799-2812. PNNL-SA-106027. doi:10.1039/c4gc01917b
  • Koech P.K., D. Malhotra, D.J. Heldebrant, D. Cantu Cantu, V.A. Glezakou, and R.J. Rousseau. 2015. "Synthesis and characterization of low viscosity carbon dioxide binding organic liquids for flue gas clean up." In Energy & Fuels Preprints Presented at the 249th ACS National Meeting & Exposition, March 22-26, 2015, Denver, Colorado, 60, 628-630. Washington, District Of Columbia:American Chemical Society. PNNL-SA-106437.
  • Mathias P.M., F. Zheng, D.J. Heldebrant, A. Zwoster, G.A. Whyatt, C.J. Freeman, and M.D. Bearden, et al. 2015. "Measuring the Absorption Rate of CO2 in Nonaqueous CO2-Binding Organic Liquid Solvents with a Wetted-Wall Apparatus." ChemSusChem 8, no. 21:3617-3625. PNNL-SA-107295. doi:10.1002/cssc.201500288
  • Shao H., S. Kabilan, S.A. Stephens, N. Suresh, A. Beck, T. Varga, and P.F. Martin, et al. 2015. "Environmentally Friendly, Rheoreversible, Hydraulic-fracturing Fluids for Enhanced Geothermal Systems." Geothermics 58. PNNL-SA-105984. doi:10.1016/j.geothermics.2015.07.010

2014

  • Heldebrant D.J., V.A. Glezakou, P.K. Koech, P.M. Mathias, D. Cantu Cantu, R.J. Rousseau, and D. Malhotra, et al. 2014. "Evaluating transformational solvent systems for post-combustion CO2 separations." Energy Procedia 63. PNNL-SA-115535. doi:10.1016/j.egypro.2015.12.336
  • Powell M.R., P.A. Gauglitz, K.M. Denslow, C.M. Fischer, D.J. Heldebrant, M.S. Prowant, and S. Sande, et al. 2014. Evaluation of Gas Retention in Waste Simulants: Intermediate-Scale Column and Open-Channel-Depth Tests. PNNL-23136; DSGREP-RPT-003. Richland, WA: Pacific Northwest National Laboratory. Evaluation of Gas Retention in Waste Simulants: Intermediate-Scale Column and Open-Channel-Depth Tests
  • Schonewill P.P., P.A. Gauglitz, R.W. Shimskey, K.M. Denslow, M.R. Powell, G.K. Boeringa, and J.R. Bontha, et al. 2014. Evaluation of Gas Retention in Waste Simulants: Tall Column Experiments. PNNL-23340; DSGREP-RPT-005, Rev.0. Richland, WA: Pacific Northwest National Laboratory. Evaluation of Gas Retention in Waste Simulants: Tall Column Experiments
  • Yadav M., J.C. Linehan, A.J. Karkamkar, E.F. Van Der Eide, and D.J. Heldebrant. 2014. "Homogeneous Hydrogenation of CO2 to Methyl Formate Utilizing Switchable Ionic Liquids." Inorganic Chemistry 53, no. 18:9849-9854. PNNL-SA-99647. doi:10.1021/ic501378w

2013

  • Koech P.K., J. Zhang, I.V. Kutnyakov, L. Cosimbescu, S. Lee, M.E. Bowden, and T.D. Smurthwaite, et al. 2013. "Low viscosity alkanolguanidine and alkanolamidine liquids for CO2 capture." RSC Advances 3, no. 2:556 - 572. PNWD-SA-10043. doi:10.1039/C2RA22801G
  • Mathias P.M., K. Afshar, F. Zheng, M.D. Bearden, C.J. Freeman, T. Andrea, and P.K. Koech, et al. 2013. "Improving the Regeneration of CO2-Binding Organic Liquids with a Polarity Change." Energy and Environmental Science 6, no. 7:2233-2242. PNNL-SA-94359. doi:10.1039/C3EE41016A
  • Mathias P.M., L.V. Jasperson, D. VonNiederhausern, M.D. Bearden, P.K. Koech, C.J. Freeman, and D.J. Heldebrant. 2013. "Assessing Anhydrous Tertiary Alkanolamines for High-Pressure Gas Purifications." Industrial and Engineering Chemistry Research 52, no. 49:17562-17572. PNWD-SA-10164. doi:10.1021/ie4020974
  • Zhang J., I.V. Kutnyakov, P.K. Koech, A. Zwoster, C.J. Howard, F. Zheng, and C.J. Freeman, et al. 2013. "CO2-Binding-Organic-Liquids-Enhanced CO2 Capture using Polarity-Swing-Assisted Regeneration." Energy Procedia 37. PNNL-SA-91349. doi:10.1016/j.egypro.2013.05.113

2012

  • Jessop P.G., S. Mercer, and D.J. Heldebrant. 2012. "CO2-Triggered Switchable Solvents, Surfactants, and Other Materials." Energy & Environmental Science 5, no. 6:7240-7253. PNNL-SA-83537. doi:10.1039/C2EE02912J

2011

  • Heldebrant D.J., P.K. Koech, J.E. Rainbolt, and F. Zheng. 2011. "CO2-Binding Organic Liquids, an Integrated Acid Gas Capture System." Energy Procedia 4. PNNL-SA-74727. doi:10.1016/j.egypro.2011.01.044
  • Heldebrant D.J., P.K. Koech, J.E. Rainbolt, F. Zheng, T.D. Smurthwaite, C.J. Freeman, and M. Oss, et al. 2011. "Performance of Single-Component CO2-Binding Organic Liquids (CO2BOLs) For Post Combustion CO2 Capture." Chemical Engineering Journal 171, no. 3:794-800. PNNL-SA-73185. doi:10.1016/j.cej.2011.02.012
  • Koech P.K., D.J. Heldebrant, S. Lee, J.E. Rainbolt, and T.D. 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, 241, 48-FUEL. Washington, Dc:American Chemical Society. PNNL-SA-76040.
  • Koech P.K., J.E. Rainbolt, M.D. Bearden, F. Zheng, and D.J. Heldebrant. 2011. "Chemically Selective Gas Sweetening Without Thermal-Swing Regeneration." Energy & Environmental Science 4, no. 4:1385-1390. PNWD-SA-9236. doi:10.1039/c0ee00839g

2010

  • Bowden M.E., D.J. Heldebrant, A.J. Karkamkar, T.E. Proffen, G.K. Schenter, and T. Autrey. 2010. "The diammoniate of diborane: Crystal structure and hydrogen release." Chemical Communications 46, no. 45:8564-8566. PNNL-SA-74582. doi:10.1039/C0CC03249B
  • Heldebrant D.J., P.K. Koech, and C.R. Yonker. 2010. "A reversible zwitterionic SO2-binding organic liquid." Energy & Environmental Science 3, no. 1:111-113. PNNL-SA-65189. doi:10.1039/B916550A
  • Heldebrant D.J., P.K. Koech, and C.R. Yonker. 2010. "A reversible zwitterionic SO2-binding organic liquid." Energy & Environmental Science 3, no. 1:111-113. PNNL-SA-65940. doi:10.1039/b916550a
  • Heldebrant D.J., P.K. Koech, C.R. Yonker, J.E. Rainbolt, and F. Zheng. 2010. "Reversible Acid Gas Capture Using CO2-Binding Organic Liquids." In Preprints of Symposia - American Chemical Society Fuel Chemistry Division, 55, 81-82. Washington Dc:American Chemical Society. PNNL-SA-69452.
  • Heldebrant D.J., P.K. Koech, J.E. 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, Paper No. 334d. New York:American Institute of Chemical Engineers. PNNL-SA-65561.
  • Heldebrant D.J., P.K. Koech, T. Ang, C. Liang, J.E. Rainbolt, C.R. Yonker, and P.G. Jessop. 2010. "Reversible zwitterionic liquids, the reaction of alkanol guanidines, alkanol amidines, and diamines with CO2." Green Chemistry 12, no. 4:713-721. PNNL-SA-69761. doi:10.1039/b924790d
  • King D.L., L. Zhang, G. Xia, A.M. Karim, D.J. Heldebrant, X. Wang, and T.H. Peterson, et al. 2010. "Aqueous Phase Reforming of Glycerol for Hydrogen Production Over Pt-Re Supported on Carbon." Applied Catalysis. B, Environmental 99, no. 1-2:206-213. PNNL-SA-71141. doi:10.1016/j.apcatb.2010.06.021
  • Koech P.K., D.J. Heldebrant, J.E. Rainbolt, F. Zheng, and T.D. 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, 55, 553-554. Washington Dc:American Chemical Society. PNNL-SA-71880.
  • Rainbolt J.E., P.K. Koech, C.R. Yonker, F. Zheng, D. Main, M.L. Weaver, and J.C. Linehan, et al. 2010. "Anhydrous Tertiary Alkanolamines as Hybrid Chemical and Physical CO2 Capture Reagents with Pressure-Swing Regeneration." Energy & Environmental Science 4, no. 2:480-484. PNWD-SA-9112. doi:10.1039/C0EE00506A
  • Shaw W.J., M.E. Bowden, A.J. Karkamkar, C.J. Howard, D.J. Heldebrant, N.J. Hess, and J.C. Linehan, et al. 2010. "Characterization of a New Phase of Ammonia Borane." Energy & Environmental Science 3, no. 6:796-804. PNNL-SA-66903.

2009

  • Heldebrant D.J., C.R. Yonker, P.G. 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), 1, 1187-1195. Oxford:Elsevier. PNNL-SA-62806. doi:10.1016/j.egypro.2009.01.156
  • Heldebrant D.J., C.R. Yonker, P.G. 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, no. 31:7619-7627. PNNL-SA-62088.
  • Hess N.J., G.K. Schenter, M.R. Hartman, L.L. Daemen, T.E. Proffen, S.M. Kathmann, and C.J. Mundy, et al. 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, no. 9:5723-5735. PNNL-SA-63995. doi:10.1021/jp900839c
  • Karkamkar A.J., S.M. Kathmann, G.K. Schenter, D.J. Heldebrant, N.J. Hess, M.S. 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, no. 19:4356-4358. PNNL-SA-62087. doi:10.1021/cm902385c
  • Pons V., V. Pons, R. Baker, N.K. Szymczak, D.J. Heldebrant, J.C. Linehan, and M.H. Matus, et al. 2009. "Coordination of aminoborane, NH2BH2, dictates selectivity and extent of H2 release in metal-catalysed ammonia borane dehydrogenation." Chemical Communications 48. PNNL-SA-64217. doi:10.1039/b809190k

2008

  • Heldebrant D.J., A.J. Karkamkar, J.C. Linehan, and T. Autrey. 2008. "Synthesis of Ammonia Borane for Hydrogen Storage Applications." Energy & Environmental Science 1, no. 1:156-160. PNNL-SA-60960. doi:10.1039/b808865a
  • Heldebrant D.J., A.J. Karkamkar, J.C. Linehan, and T. Autrey. 2008. "Synthesis of Ammonia Borane for Hydrogen Storage Applications." Energy & Environmental Science 1, no. 1:156-160. PNNL-SA-61234.
  • Heldebrant D.J., A.J. Karkamkar, N.J. Hess, M.E. Bowden, S.D. Rassat, F. Zheng, and K.G. Rappe, et al. 2008. "The Effects of Chemical Additives on the Induction Phase in Solid-State Thermal Decomposition of Ammonia Borane." Chemistry of Materials 20, no. 16:5332-5336. PNNL-SA-60433. doi:10.1021/cm801253u
  • Heldebrant D.J., C.R. Yonker, P.G. Jessop, and L. Phan. 2008. "Organic Liquid CO2 Capture Agents With High Gravimetric CO2 Capacity." Energy & Environmental Science 1, no. 4:487-493. PNNL-SA-60661.
  • Hess N.J., M.R. Hartman, C. Brown, E. Mamontov, A.J. Karkamkar, D.J. Heldebrant, and L.L. Daemen, et al. 2008. "Quasielastic neutron scattering of -NH3 and -BH3 rotational dynamics in orthorhombic ammonia borane." Chemical Physics Letters 459, no. 1-6:85-88. PNNL-SA-58774. doi:10.1016/j.cplett.2008.04.130
  • Shaw W.J., J.C. Linehan, N.K. Szymczak, D.J. Heldebrant, C.R. Yonker, D.M. Camaioni, and R. Baker, et al. 2008. "In Situ Multinuclear NMR Spectroscopic Studies of the Thermal Decomposition of Ammonia Borane in Solution." Angewandte Chemie International Edition 47, no. 39:7493-7496. PNNL-SA-60317. doi:10.1002/anie.200802100
  • Zheng F., S.D. Rassat, D.J. Heldebrant, D.D. Caldwell, C.L. Aardahl, T. Autrey, and J.C. Linehan, et al. 2008. "Automated gas burette system for evolved hydrogen measurements." Review of Scientific Instruments 79, no. 8:Article no: 084103. PNNL-SA-60596. doi:10.1063/1.2968715

2007

  • Heldebrant D.J., J.C. Linehan, D.M. Camaioni, S.D. 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., 52, 563-564. Washington Dc:American Chemical Society. PNNL-SA-55182.

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