Archive · 2 Sep 2025
IIT Madras Develops Cost-Effective Seawater Electrolyser
Scientists at IIT Madras have created a new machine that can make hydrogen using seawater instead of fresh water.
This is important because making hydrogen usually uses a lot of fresh water, which is scarce.
The new machine uses special, affordable metals to help split the water and make hydrogen.
It produces hydrogen efficiently and addresses the problems of corrosion caused by the salt.
The goal is to help India produce green hydrogen, reduce pollution, and move away from using fossil fuels, as green hydrogen can be used in multiple industries.
IIT Madras developed a cost-effective seawater electrolyser for hydrogen production.
The electrolyser uses transition metal-based catalysts.
The technology addresses the issue of freshwater scarcity in hydrogen production.
The device can produce up to 50 liters of hydrogen per hour.
The technology aims to help India become a green hydrogen producer.
- Who
- Researchers at IIT Madras
- What
- Developed a cost-effective seawater electrolyser
- When
- Not explicitly mentioned
- Where
- IIT Madras
- Why
- To produce hydrogen and reduce reliance on fossil fuels and water consumption
Current Methods
IIT Madras's Technology
Catalyst Cost
Current Methods
Uses costly, scarce 'noble metals' like ruthenium and iridium.
IIT Madras's Technology
Uses abundant and cost-effective transition metals.
Water Source
Current Methods
Relies on fresh water.
IIT Madras's Technology
Utilizes alkaline seawater.
- Institution
- IIT Madras
- Technology
- Cost-effective seawater electrolyser
- Catalysts
- Transition metal-based
- Hydrogen Production Rate
- Up to 50 liters/hour
- Water Source
- Alkaline seawater
