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Energy and Environment Directorate

Chinmayee Subban

Chinmayee Subban

(206) 528-3127


Chinmayee Subban is a Research Scientist in the Coastal Sciences Division and an Affiliate Professor of Materials Science and Engineering at the University of Washington. She is interested in addressing materials challenges related to energy and water, and her efforts span both fundamental and applied research. Chinmayee received her Ph.D. in Chemistry from Cornell University. Following post-doctoral work on Li-ion battery materials at Collège de France, she joined Lawrence Berkeley National Laboratory as an ITRI-Rosenfeld Postdoctoral Fellow and later transitioned to a Research Scientist. At Berkeley Lab she led the development of novel electrode materials for desalination. In 2020 she joined PNNL, where she works on nanoscale ion-water transport, recovery of critical materials from seawater, development of advanced ceramics, materials for desalination and water treatment, ocean CO2 capture, and coastal resilience.

Google Scholar: Chinmayee V. Subban

Research Interests

  • Nanoscale ion-water transport
  • Desalination and water treatment
  • Energy-water nexus
  • Resource recovery from waste streams
  • Advanced ceramics
  • H2 and critical materials recovery from seawater
  • Ocean carbon dioxide removal
  • Coastal resilience

Education and Credentials

  • PhD, Cornell University, 2012
  • MS, Cornell University, 2009
  • BS, Linfield College, 2007

Affiliations and Professional Service

  • Materials Research Society
  • American Chemical Society

Awards and Recognitions

  • ITRI-Rosenfeld Postdoctoral Fellowship, LBNL, 2014
  • Cornell Center for Materials Research Outreach Award, 2009
  • Bayer Teaching Excellence Award- Cornell University, 2008
  • Murdock Scholar Research Grant, 2006

Selected Patents


    Subban, C. V.; Gadgil, A. J.; Kostecki, R.; Chen, G. Devices and Methods for Removing Dissolved Ions from Water Using Composite Resin Electrodes. US10544052B2, January 28, 2020


    Jr, F. J. DiSalvo.; Subban, C. V. Conducting Metal Oxide and Metal Nitride Nanoparticles. US9850140B2, December 26, 2017.


    Ati, M; Subban, C.V.; Janot, R.; Tarascon, J.-M. Hydroxysulfate de lithium et de fer. WO2014064392A1, May 1, 2014.

PNNL Publications


  • Wang Q., J. Chun, and C. Venkata Subban. 2024. "Influence of concentration gradients on electroconvection at a cation-exchange membrane surface." Langmuir 40, no. 3:1613-1622. PNNL-SA-181601. doi:10.1021/acs.langmuir.3c02453



  • Jung H., C. Venkata Subban, J. Mctigue, J.J. Martinez, A.E. Copping, J. Osorio, and J. Liu, et al. 2022. "Extracting Energy from Ocean Thermal and Salinity Gradients to Power Unmanned Underwater Vehicles: State of the Art, Current Limitations, and Future Outlook." Renewable & Sustainable Energy Reviews 160. PNNL-SA-163771. doi:10.1016/j.rser.2022.112283
  • Myers C.R., and C. Venkata Subban. 2022. "Ocean Deacidification Technologies For Marine Aquaculture." Journal of Marine Science and Engineering 10, no. 4:Art. No. 523. PNNL-SA-170723. doi:10.3390/jmse10040523
  • Myers C.R., C.F. Hibbeln, S.J. Edmundson, and C. Venkata Subban. 2022. Optimizing biological carbon uptake by regulating carbonate-bicarbonate equilibrium. PNNL-33407. Richland, WA: Pacific Northwest National Laboratory. Optimizing biological carbon uptake by regulating carbonate-bicarbonate equilibrium
  • Wang Q., E. Nakouzi, E.A. Ryan, and C. Venkata Subban. 2022. "Flow-Assisted Selective Mineral Extraction from Seawater." Environmental Science & Technology Letters 9, no. 7:645-649. PNNL-SA-170825. doi:10.1021/acs.estlett.2c00229

Selected Publications


  • Metzger, M.; Besli, M. M.; Kuppan, S.; Hellstrom, S.; Kim, S.; Sebti, E.; Subban, C. V.; Christensen, J. Techno-Economic Analysis of Capacitive and Intercalative Water Deionization. Energy Environ. Sci. 2020, 13 (6), 1544–1560.
  • Sebti, E.; Besli, M. M.; Metzger, M.; Hellstrom, S.; Schultz-Neu, M. J.; Alvarado, J.; Christensen, J.; Doeff, M.; Kuppan, S.; Subban, C. Removal of Na+ and Ca2+ with Prussian Blue Analogue Electrodes for Brackish Water Desalination. Desalination 2020, 487, 114479.


  • Subban, C. V.; Gadgil, A. J. Electrically Regenerated Ion-Exchange Technology for Desalination of Low-Salinity Water Sources. Desalination 2019, 465, 38–43.


  • Boden, K.; Subban, C. A Road Map for Small-Scale Desalination: An Overview of Existing and Emerging Technology Solutions for Cost-Efficient and Low-Energy Desalination in South and Southeast Asia; Oxfam, 2018.


  • Subban, C. V.; Rousse, G.; Vannier, R.-N.; Laberty-Robert, C.; Barboux, P.; Tarascon, J.-M. Search for Li-Electrochemical Activity and Li-Ion Conductivity among Lithium Bismuth Oxides. Solid State Ion. 2015, 283, 68–74.


  • Radha, A. V.; Subban, C. V.; Sun, M. L.; Tarascon, J. M.; Navrotsky, A. Possible Correlation between Enthalpies of Formation and Redox Potentials in LiMSO4OH (M = Co, Fe, Mn), Li-Ion Polyanionic Battery Cathode Materials. J. Mater. Chem. A 2014, 2 (19), 6887–6894.
  • Subban, C. V.; Rousse, G.; Courty, M.; Barboux, P.; Tarascon, J.-M. Polymorphism in Bi2(SO4)3. Solid State Sci. 2014, 38, 25–29.


  • Subban, C. V.; Ati, M.; Rousse, G.; Abakumov, A. M.; Van Tendeloo, G.; Janot, R.; Tarascon, J.-M. Preparation, Structure, and Electrochemistry of Layered Polyanionic Hydroxysulfates: LiMSO4OH (M = Fe, Co, Mn) Electrodes for Li-Ion Batteries. J. Am. Chem. Soc. 2013, 135 (9), 3653–3661.


  • Subban, C. V.; Smith, I. C.; DiSalvo, F. J. Interconversion of Inverse Opals of Electrically Conducting Doped Titanium Oxides and Nitrides. Small 2012, 8 (18), 2824–2832.


  • Miura, A.; Lowe, M.; Leonard, B. M.; Subban, C. V.; Masubuchi, Y.; Kikkawa, S.; Dronskowski, R.; Hennig, R. G.; Abruna, H. D.; DiSalvo, F. J. Silver Delafossite Nitride, AgTaN2? J. Solid State Chem. 2011, 184 (1), 7–11.


  • Subban, C. V.; Zhou, Q.; Hu, A.; Moylan, T. E.; Wagner, F. T.; DiSalvo, F. J. Sol-Gel Synthesis, Electrochemical Characterization, and Stability Testing of Ti0.7W0.3O2 Nanoparticles for Catalyst Support Applications in Proton-Exchange Membrane Fuel Cells. J. Am. Chem. Soc. 2010, 132 (49), 17531–17536.
  • Subban, C.; Zhou, Q.; Leonard, B.; Ranjan, C.; Edvenson, H. M.; DiSalvo, F. J.; Munie, S.; Hunting, J. Catalyst Supports for Polymer Electrolyte Fuel Cells. Philos. Trans. R. Soc. Math. Phys. Eng. Sci. 2010, 368 (1923), 3243–3253.
  • Wallisch, M.; Subban, C. V.; Nettleton, R. T.; Olsen, G. D. Chronic in Utero Buprenorphine Exposure Causes Prolonged Respiratory Effects in the Guinea Pig Neonate. Neurotoxicol. Teratol. 2010, 32 (3), 398–405.
  • Wang, D.; Subban, C. V.; Wang, H.; Rus, E.; DiSalvo, F. J.; Abruna, H. D. Highly Stable and CO-Tolerant Pt/Ti0.7W0.3O2 Electrocatalyst for Proton-Exchange Membrane Fuel Cells. J. Am. Chem. Soc. 2010, 132 (30), 10218–10220.

Energy and Environment

Core Research Areas