Researchers at IIT Guwahati have developed an advanced MXene-based material enabling efficient hydrogen production and solar desalination, offering sustainable solutions for energy and clean water challenges.

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•  Researchers at IIT Guwahati have developed an advanced multifunctional material that simultaneously enables hydrogen fuel production and solar-powered desalination, addressing two major global sustainability challenges effectively.
•  The material shows exceptional efficiency in hydrogen evolution reaction, requiring an ultralow overpotential of just 12 millivolts, outperforming traditional platinum-based catalysts used in electrolysis processes.
• Hydrogen produced through this method is considered a clean fuel, as it releases only water upon usage, offering a sustainable alternative to fossil fuel-based energy systems.
•  The innovation is based on MXenes, a class of two-dimensional materials known for high electrical conductivity and promising applications in energy storage and catalysis technologies.
•  Scientists engineered MXenes into ultra-thin ribbon-like structures to increase active surface area, significantly improving catalytic performance and reaction efficiency during hydrogen generation.
•  Ruthenium atoms were incorporated into oxygen-deficient sites, enhancing charge transfer, strengthening metal-support interaction, and boosting overall catalytic activity of the material.
•  The material also acts as a photocatalyst in a specially designed three-dimensional Janus evaporator, enabling efficient solar-driven desalination of seawater into safe drinking water.
•  The system achieved a high evaporation rate of about 3.2 kilograms per square meter per hour and operated continuously for five days without salt accumulation issues.