Researchers at Indian Institute of Technology Guwahati (IIT Guwahati) have developed an advanced coating technology that could significantly improve the efficiency, durability, and reliability of solar-powered green hydrogen production systems. The breakthrough has the potential to reduce operational costs while enhancing long-term performance in clean hydrogen generation technologies, an area gaining global attention as industries accelerate decarbonisation efforts.
Research Published in Small
The research findings were recently published in the scientific journal Small and focus on photo-assisted electrochemical (PAEC) water splitting technology. PAEC water splitting uses sunlight to separate water molecules into hydrogen and oxygen, enabling the production of green hydrogen using renewable energy sources. Green hydrogen is increasingly being viewed as a critical clean fuel for reducing carbon emissions in industries such as refining, fertilisers, steel manufacturing, and heavy transportation.
Addressing Major Challenges in Solar Water Splitting
One of the key challenges in existing solar water-splitting systems is the gradual degradation of catalyst coatings on electrodes. Over time, these coatings tend to peel away from the electrode surface, leading to reduced efficiency and lower hydrogen production performance. Additionally, gas bubbles generated during the electrochemical reaction often stick to the electrode surface. This blocks active reaction sites, restricts contact between water and the catalyst, and ultimately lowers hydrogen output.
New Coating Enhances Durability and Performance
The newly developed coating technology from IIT Guwahati aims to overcome these limitations by improving the stability and adhesion of catalyst coatings on electrode surfaces. At the same time, the innovation helps reduce bubble accumulation, allowing smoother release of gases during the reaction process. As a result, the system can maintain higher efficiency levels over longer operating periods. Researchers believe the technology could contribute to the development of more durable and cost-effective green hydrogen systems, supporting the transition toward cleaner energy solutions.
Supporting India’s Clean Energy and Hydrogen Goals
The development aligns with India’s growing focus on green hydrogen under its broader clean energy and net-zero initiatives. As reported by thehindubusinessline.com, as industries increasingly seek sustainable alternatives to fossil fuels, efficient solar-driven hydrogen production technologies are expected to play a crucial role in supporting future energy security and industrial decarbonisation.
