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Pradeep Kumar Sow

Associate Professor

Electrochemical engineering, Hydrogen energy, Surface science
Office Address
A301/18, A-wing
Department of Chemical Engineering
BITS Pilani, K. K. Birla Goa Campus
Zuarinagar, Goa, India

Lab address: AiMES Lab
Research Lab #12 (A-wing, Ground floor)
Room number: A-110/2 & A-110/3
Department of Chemical Engineering
BITS Pilani, K. K. Birla Goa Campus
Zuarinagar, Goa, India

Publications

Publications in peer reviewed international journals

  1. P. Sahoo, P. K. Sow, Controlling the electrochemically driven wettability alteration through microstructure design for superhydrophobic Cu–CuOx surfaces, Surfaces and Interfaces 86 (2026) 108716, https://doi.org/10.1016/j.surfin.2026.108716
  2.  J. Chopra, P. Sahoo, P. K. Sow, V. Rangarajanan, Investigating the wettability of neem oil nanoemulsion as a green pesticide on leaf surfaces – optimizing formulation, assessing stability, and enhancing wettability, RSC Advances, (2025), 2025,15, 8645-8656, https://doi.org/10.1039/d5ra00556f
  3. P. Sahoo, P. K. Sow, Unveiling the Influence of Ion-Specific Interactions on the Electrochemical Wettability Alteration of Cu-CuOx Surfaces, Colloids and Surfaces A: Physicochemical and Engineering Aspects, 711 (2025) 136350, https://doi.org/10.1016/j.colsurfa.2025.136350
  4. A.Y. Hegde, S. Chaudhary, P. Damaraju, P. K. Sow, Effect of Catholyte in a Single Step Electrochemical Hydroiodic Acid Decomposition for Hydrogen Production using the Iodine-Sulfur Thermochemical Cycle, RSC Advances, (2024), 14, 39937 – 39953, DOI: 10.1039/D4RA07522F
  5. P. Sahoo, A. A. Ramachandran, P. K. Sow, A comprehensive review of fundamentals and future trajectories in oil-water separation system designs with superwetting materials. Journal of Environmental Management (2024) 370, 122641. https://doi.org/10.1016/j.jenvman.2024.122641
  6. Ishita, S. Radhakanth, P. K. Sow, R. Singhal, Role of Pore Architecture on the Confinement of Electrogenerated Iodine in Iodide-Based Energy Storage Systems. (2024). The Journal of Physical Chemistry C. https://doi.org/10.1021/acs.jpcc.4c00610
  7. Kodancha, S. Tripathi, P. K. Sow, V. Hemadri, Investigation of droplet boiling on superhydrophilic CuO multiscale hierarchical structured surfaces. (2024) International Journal of Thermal Sciences, 201, 109057. https://doi.org/10.1016/j.ijthermalsci.2024.109057
  8. A. Y. Hegde, S. Chaudhary, P. Damaraju, P. K. Sow, Decoupling the anodic and cathodic behavior in asymmetric electrochemical hydroiodic acid decomposition cell for hydrogen production in the iodine–sulfur thermochemical cycle. (2023) Environ Science and Pollution Research. https://doi.org/10.1007/s11356-023-30154-y
  9. I Ishita ,P. Sahoo, P. K. Sow, R. Singhal Unlocking the Potential of KI as Redox Additive in Supercapacitor through Synergistic Enhancement with H2SO4 as a Co-electrolyte (2023) Electrochimica Acta, 142286, https://doi.org/10.1016/j.electacta.2023.142286,
  10. P. Sahoo, & P. K. Sow, Dynamic change in the shape of the droplet placed on superhydrophobic Cu-based surface through electrochemical reaction under negative bias potential. (2022) Materials Today: Proceedings. https://doi.org/10.1016/j.matpr.2022.11.236
  11. P. Sahoo, R. Singhal, and P. K. Sow, Dynamic Electrolyte Spreading during Meniscus-Confined Electrodeposition and Electrodissolution of Copper for Surface Patterning. ACS Applied Materials & Interfaces. (2022), 14, 42586−42601
  12. R. Pujari, S. Kumar, P. K. Sow, Fluid flow simulation on a Turritella-seashell-like geometry demonstrating its ability as static mixer for inline mixing, Chemical Engineering Science, (2022), 262, 118031
  13. P. K. Sow, R. Singhal, P. Sahoo, S. Radhakanth, Fabricating low-cost, robust superhydrophobic coatings with re-entrant topology for self-cleaning, corrosion inhibition, and oil-water separation. Journal of Colloid and Interface Science. (2021). 600, 358-372.
  14. P. K. Sow, Ashwin Y. A design framework for the fabrication of a low-cost goniometer apparatus for contact angle and surface tension measurements, Measurement Science and Technology, (2020),31: 125401
  15. P. K. Sow; Ishita; R. Singhal, Sustainable approach to recycle waste polystyrene to high-value submicron fibers using solution blow spinning and application towards oil-water separation. Journal of Environmental Chemical Engineering, (2020), 8, 102786
  16. C. H. Kung, P.K. Sow, B Zahiri, W Mérida, Assessment and Interpretation of Surface Wettability Based on Sessile Droplet Contact Angle Measurement: Challenges and Opportunities, Advanced Materials Interfaces, (2019), 6, 1900839. https://doi.org/10.1002/admi.201900839
  17. R. Singhal; Ishita; P.K. Sow. Integrated Polymer Dissolution and Solution Blow Spinning Coupled with Solvent Recovery for Expanded Polystyrene Recycling, Journal of Polymers and the Environment, (2019) 27:1240–1251
  18. C. H. Kung, B Zahiri, P.K. Sow, W Mérida, “On-demand oil-water separation via low-voltage wettability switching of core-shell structures on copper substrates” Applied Surface Science 444 (2018) 15–27, https://doi.org/10.1016/j.apsusc.2018.02.238
  19. C. H. Kung, B Zahiri, P.K. Sow, W Mérida, Electrochemical Wettability Control on Cu/CuxO Core-Shell Dendrites: In-Situ Droplet Modulation and On-Demand Oil-Water Separation, MRS Advances, (2018)1-7. doi:10.1557/adv.2018.335
  20. B Zahiri, P.K. Sow, C.H. Kung, W Mérida, “Understanding the wettability of rough surfaces using simultaneous optical and electrochemical analysis of sessile droplets”, Journal of Colloid and Interface Science, 501 (2017) 34–44 https://doi.org/10.1016/j.jcis.2017.04.043
  21. B Zahiri+, P.K. Sow+, C.H. Kung, W Mérida, “Active Control over the Wettability from Superhydrophobic to Superhydrophilic by Electrochemically Altering the Oxidation State in a Low Voltage Range”[+Equal Contributions], Advanced Materials Interfaces,(2017), 4(12), 1700121 . https://doi.org/10.1002/admi.201700121
  22. B Zahiri, P.K. Sow, C.H. Kung, W Mérida, “Electrochemical Approach to Evaluate the Wettability of Rough Surfaces” ECS Transaction  75 ,48 (2017), 49-57
  23. P. K. Sow, Z. Lu, H. Talebian, L. Damron, W. Mérida, “Double Layer Capacitance Measurements to Characterize the Water Intrusion into Porous Materials”, Journal of Physical Chemistry C, 120 (2016) 24794−24802,
  24. B. Zahiri, P. K. Sow, C. H. Kung, W. Mérida, “Validation of surface wettability theories via electrochemical analysis” Electrochemistry Communications, 68 (2016) 95–98 [Equal contributions]
  25. S. Prass, S. Hasanpour, P. K. Sow, A. Phillion, W. Mérida, “Microscale X-ray tomographic investigation of the interfacial morphology between the catalyst and micro porous layers in proton exchange membrane fuel cells”, Journal of Power Sources, 319 (2016) 82-89
  26. P. K. Sow, S. Prass, W. Merida, “An Alternative Approach to Evaluate the Wettability of Carbon Fibre Substrates”, ACS Appl. Mater. Interfaces7(39) (2015) 22029–22035, https://doi.org/10.1021/acsami.5b06952
  27. P. K. Sow, S. Prass, P. Kalisvaart, W. Merida, “Deconvolution of contact and bulk resistance of Gas diffusion layer for PEMFC application”, International Journal of Hydrogen Energy, 40 (2015) 2850 -2861
  28. P. K. Sow, A. Shukla, Electrochemical interaction of HIx solution at graphite electrode: an application towards EED process in IS thermochemical cycle. Ionics, 21 (2015) 175–184
  29. P. Misra, P. K. Sow, A. Shukla, "Energy consumption in iodine section of I-S: effect of operating parameters of electro-electrodialysis on overall efficiency of cycle” International Journal of Hydrogen Energy, 38(31), (2013) 13502-13510
  30. P. K. Sow, A. Shukla, "A chronopotentiometry based identification of time-varying different transport resistances of electro-electrodialysis cell used for concentration of HIx solution", International Journal of Hydrogen Energy, 38 (2013) 3154-3165
  31. P. K. Sow, D. Parvatalu, A. Bhardwaj, B. N. Prabhu, A. N. Bhaskarwar, A. Shukla, "Impedance spectroscopic determination of effect of temperature on the transport resistances of an electro-electrodialysis cell used for concentration of hydroiodic acid", Journal of Applied Electrochemistry, 43, (2013) 31-41
  32. P. K. Sow, A. Shukla, "Effect of asymmetric variation of operating parameters on EED cell for HI concentration in I-S cycle  for hydrogen production",  International Journal of Hydrogen Energy, 37, (2012) 13958-13970
  33. P. K. Sow, A. Shukla, "Electro-electrodialysis for concentration of hydroiodic acid", International Journal of Hydrogen Energy, 37 (2012) 3931-3937
  34. P. K. Sow, S. Sant, A. Shukla, “EIS studies on electro-electrodialysis cell for concentration of hydroiodic acid", International Journal of Hydrogen Energy, 35 (2010)8868–8875

Book Chapters

  1. I Ishita, S Radhakanth, PK Sow, R Singhal, Nanofibers and their composites for supercapacitor applications. Polymeric Nanofibers and their Composites, Elsevier Science Ltd, 2025, Pages 539-568, ISBN 9780443141287, https://doi.org/10.1016/B978-0-443-14128-7.00022-5.
  2. Dileep Maarisetty, P. K. Sow, S. S. Baral, Bioinspired nanomaterials for remediation of toxic metal ions from wastewater, Advances in Nano and Biochemistry, ISBN 978-0-323-95253-8. Publisher: Elsevier. https://doi.org/10.1016/B978-0-323-95253-8.00002-4
  3. Priyanka Sahoo, Richa Singhal, & P. K. Sow,. Superhydrophobic Surfaces for Anti‐scaling Applications. Industrial Scale Inhibition: Principles, Design, and Applications, Print ISBN:9781394191178 |Online ISBN:9781394191208, 458-482. (2024) John Wiley & Sons, Inc, https://doi.org/10.1002/9781394191208.ch21

Conference presentations/Publications

  1. S . Viegas, J S Rathore, P Damaraju, P K Sow, “Performance Analysis of a Lab-Scale System for Direct Electrochemical Decomposition of HIx Mixture for Hydrogen Production” International Conference on Sustainable Energy and Environment (ICSEE) 2025 8th - 10th March, 2025, BITS Pilani, K K Birla, Goa Campus
  2. P. Sahoo, P. K. Sow, “Elucidating the Connection Between Surface Microstructural Characteristics and Electrochemical Behavior of Superhydrophobic Cu-CuOx Surfaces for Responsive Wetting Applications”. International Conference on Sustainable Energy and Environment (ICSEE) 2025 8th - 10th March, 2025, BITS Pilani, K K Birla, Goa Campus
  3. T.S. Joshi, D. D’Souza, P. K. Sow, P. L. Dhobi and B. Basu, Influence of Alternating Current Parameters on Anode Passivation during copper Electrorefining, International Conference on Sustainable Energy and Environment (ICSEE) 2025 8th - 10th March, 2025, BITS Pilani, K K Birla, Goa Campus.
  4. P Sahoo, P.K. Sow, Unveiling the influence of anions on the dynamics of redox reaction-mediated wettability change in Cu-CuOx superhydrophobic surface, Advanced Functional Materials and Devices 2024 (AFMD-2024), SRM Institute of Science & Technology, Feb 26-29 2024.
  5. A. Y. Hegde, S. Chaudhary, P Damaraju,P. K. Sow “Unraveling the performance dependence of the electrochemical HI decomposition on the HIx composition from the Bunsen section in the iodine-sulfur thermochemical cycle for hydrogen production” IIChE-CHEMCON 2023, December 27th-30th 2023
  6. A. Y. Hegde, S. Chaudhary, P Damaraju,P. K. Sow “Enhancing Electrochemical HI Decomposition for hydrogen production using HI-H2O as catholyte in Iodine-Sulphur thermochemical cycle” ChEmference 2023, BITS Pilani Goa Campus 30th Sept-2nd Oct 2023.
  7. S. Viegas, S. Chaudhary, P Damaraju,P. K. Sow “A comparative study of the electrode material on iodine-iodide redox reaction for iodine-sulphur thermochemical cycle for hydrogen production” ChEmference 2023, BITS Pilani Goa Campus 30th Sept-2nd Oct 2023.
  8. P. Sahoo, P.K. Sow, “Investigating the microstructural and mesh-size effects on breakthrough pressure in superhydrophobic separator” ChEmference 2023, BITS Pilani Goa Campus 30th Sept-2nd Oct 2023.
  9. P. Sahoo, P.K. Sow, “Dynamic change in the shape of the droplet placed on superhydrophobic Cu surfaces through electrochemical reaction under negative bias potential” International Conference on Nanotechnology for Sustainable Living & Environment (ICON-NSLE) ICON-NSLE 2022, 14-16 April, 2022, BITS Pilani, Pilani Campus
  10. P. K Sow, Frugal designs for affordable science: design of low cost goniometer system for wettability studies, Advances in Chemical Engineering and Science (ACES - 2020), 28-29 February 2020, IISER Bhopal, M.P. India.
  11. P. K. Sow; Ishita; Singhal, R. Solution Blow Spinning for the Synthesis of Submicron Fibers from Waste Polystyrene and Application in Oil-Water Separation, The Fiber Society, 2019 Spring Conference May 20−23, Hong Kong, China
  12. C. H. Kung, B Zahiri, P.K. Sow, W Mérida, Electrochemical Wettability Control on Cu/CuxO Core-Shell Dendrites for In-Situ Droplet Modulation and On-Demand Oil-Water Separation. Material Research Society Spring Meeting.April 2-6, 2018, Pheonix, Arizona.
  13. C. H. Kung, B Zahiri, P.K. Sow, W Mérida, Low-Voltage Reversibly Switchable Wettability through Electrochemical Manipulation of Oxidation State, 233rd ECS Meeting, May 13-17, 2018, Seattle, Washington.
  14. C. K. Sow, S. Prass, B. Zahiri, W. Mérida, “Wettability of Gas Diffusion Layers for Proton Exchange Membrane (PEM) Fuel Cells” ECS Prime 2016, 2-7 October, 2016, Honolulu, Hawaii
  15. B. Zahiri, P. K. Sow, C. H. Kung, W. Mérida, “Electrochemical Approach to Evaluate the Wettability of Rough Surfaces”, ECS Prime 2016, 2-7 October, 2016, Honolulu, Hawaii
  16. P. K. Sow, A. Shukla, " Determination of transport resistances associated with iodine-iodide redox reaction at graphite electrode using under-limiting current chronopotentiometry”, International Conference on Advances in Chemical Engineering (ICACE-2013), 5-6 April 2013, Raipur, India
  17. P. K. Sow, A. Shukla, "MnO2-PVA composite for super-capacitor application", CHEMCON-2011, 27-29 December, 2011 Bangalore, India
  18. P. K. Sow, A. Shukla, "Electro-Electrodialysis for concentration of hydroiodic acid", International Conference on Renewable Energy (ICRE-2011), 17-18 January 2011, Jaipur, India
  19. P. K. Sow, A. Shukla, "Investigations   on   Electro-Electrodialysis   cell   for concentration of HIx   solution".   International Symposium on Advances in Electrochemical Science and Technology (iSAEST-9), 2-4 December 2010, Chennai, India