IIT Guwahati Develops Material for Hydrogen, Desalination
- 18 Mar 2026
In March 2026, researchers at the Indian Institute of Technology (IIT) Guwahati developed a novel material capable of producing hydrogen fuel through water electrolysis while also enabling solar-powered desalination.
Key Points
- Dual-Functional Material: The developed material can efficiently generate hydrogen through electrolysis and also support solar-driven desalination of seawater.
- Hydrogen as Clean Fuel: Hydrogen is considered a clean fuel because it produces only water as a by-product, offering an alternative to fossil fuels.
- Exceptional Electrocatalytic Performance: The material demonstrated an ultralow hydrogen evolution reaction (HER) overpotential of 12 millivolts (mV), outperforming conventional platinum-on-carbon (Pt/C) electrodes.
- MXene-Based Catalyst: The research uses MXenes, a class of two-dimensional materials known for high electrical conductivity and catalytic potential.
- Structural Modification: Scientists engineered ultra-thin, ribbon-like MXene structures to increase surface area and improve charge transport.
- Ruthenium Doping: Introduction of Ruthenium atoms into oxygen-vacant sites enhanced catalytic activity through stronger metal-support interactions.
- Improved Efficiency: The material showed better performance under sunlight due to its strong photothermal conversion capability and remained stable over long durations.
- Solar Desalination: The material was integrated into a Janus evaporator, a floating device that heats only the water surface to improve efficiency.
- High Evaporation Rate: The system achieved an evaporation rate of about 3.2 kg/m²/h under standard sunlight conditions.
- Salt Rejection: The device operated continuously in saltwater for five days without salt deposition, producing potable water meeting international standards.
