IIT Indore Scientists Harness Evaporation to Generate Electricity from Thin Air

In a significant scientific breakthrough, researchers at the Indian Institute of Technology Indore have developed a technology that generates electricity from thin air and water. As of September 30th, 2025, the team has created a special membrane made of graphene oxide and zinc-imidazole that can produce a steady voltage when partially submerged in water.

The innovative device harnesses the power of evaporation to separate positive and negative ions, creating an electrical current. This self-charging "power source" requires nothing more than air and water to function, making it a sustainable and clean energy solution. The researchers envision the technology powering sensors in forests and farms, providing lighting during blackouts, and keeping low-power medical equipment running.

Notably, the IIT Indore innovation is affordable and even works with dirty water, making it an accessible option for rural and off-grid communities. Professor Dhirendra K Rai, the lead researcher, emphasizes that this breakthrough is a testament to the institute's commitment to creating knowledge that benefits society.

While not a grid-supporting solution, the evaporation-powered device is part of a broader shift towards cleaner energy alternatives that limit the production of heat-trapping air pollution. As the world grapples with the impacts of climate change, innovations like this offer promising pathways to a more sustainable future.