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Prof. Nagappan Ramaswamy

Education

    Ph.D. (Chemistry/Electrochemistry), Northeastern University, Boston, MA, USA (2011)
    B.Tech (Chemical and Electrochemical Engineering), Central Electrochemical Research Institute, Karaikudi, TN, India (2005)

Research

Water Electrolyzers

Electrolyzer and Fuel Cells

Hydrogen is expected to play a key role in the decarbonization of the energy-intensive industrial and automotive sectors. In energy-intensive chemical industries such as ammonia synthesis, cement and steel manufacturing, hydrogen is utilized as a major feedstock material. Hydrogen is also considered as a cleaner alternative fuel to the diesel-based internal combustion engines in heavy-duty trucks. Currently, hydrogen is generated via steam-methane reforming of natural gas that involves the evolution of carbon dioxide. Electrolysis of water provides an avenue to produce clean hydrogen that is free of fossil fuels whereas fuel cells offer an energy efficient pathway to convert the chemical energy stored in hydrogen directly to electrical energy.

Redox-flow and Desalination Batteries

Redox-flow batteries provide an opportunity to store electrical energy in chemical species over various time scales ranging from days to months. The development of redox-flow battery systems is key to enable the penetration of renewable energy sources such as solar and wind power. Further, the increased desertification due to climate change effects, rapid urbanization with poor planning, land-use changes and water mis-management has led to acute water scarcity in many parts of the world. Desalination batteries offer an alternative to the energy-intensive reverse osmosis process to generate potable water along with energy storage.


Selected Publications

    'Meeting Fuel Cell Catalyst Requirements for Heavy-Duty Vehicle Applications', N. Ramaswamy, A. Kongkanand, J. Wortman and W. Gu, J. Electrochem. Soc., (2025), 172 024501
    'Durable Fuel Cell Electrode Design via Efficient Distribution of the Acidic Ionomer', N. Ramaswamy, and J. Wortman, ACS Energy Letters, (2024), 9, 6170-6177
    'Surface Decoration of Platinum Catalysts by ZrO2–x Nanoclusters for Durable Fuel Cell Applications', N. Ramaswamy, Z. Shi, B. Zulevi, G. McCool, N. Mellot, A. Kongkanand, S. Kumaraguru, M. Ostraat, D. Muller, N. Kariuki, D. Myers, J. Kropf, ACS Catalysis, (2024), 14, 4441-4452
    'Proton Transport Functionality-Enabled Carbon Support for Improved Fuel Cell Performance and Durability', V. Yarlagadda, N. Mellott, S. Kumaraguru, N. Ramaswamy, ACS Appl. Mater. Interfaces (2023), 15, 48, 55669–55678
    'Alkaline anion exchange membrane fuel cells: challenges in electrocatalysis and interfacial charge transfer', N. Ramaswamy, and S. Mukerjee, Chemical Reviews, (2019), 119 (23), 11945-11979.