Brazil advances in sustainable hydrogen production with innovative technology developed by CNPEM
- REDAÇÃO H2RADAR
- Oct 7
- 1 min read
Researchers at the National Center for Research in Energy and Materials (CNPEM) in Campinas, São Paulo, have developed a pioneering technology that could redefine how low-carbon hydrogen is produced in Brazil and worldwide. The study resulted in the development of a prototype capable of generating hydrogen using only solar energy and water, without relying on the electricity grid. This advancement could place the country at the forefront of the global energy transition, with a clean, efficient solution adapted to Brazilian environmental conditions.
New photoelectrochemical cell increases efficiency and reduces emissions in green hydrogen production
Low-carbon hydrogen is produced by water electrolysis, a process that separates hydrogen from oxygen using electricity from renewable sources. This production route is essential for decarbonizing energy-intensive sectors such as transportation, steelmaking, and the chemical industry. According to CNPEM, the structure of Brazil's electricity grid—with over 90% renewable generation—gives the country unique environmental advantages, especially regarding the so-called matching time, an international rule that requires hydrogen production to occur simultaneously with clean energy generation.
The technology created by CNPEM features a high-efficiency photoelectrochemical cell designed to simultaneously control temperature, pH, and electrolyte flow during hydrogen production. The innovative design prevents the formation of gas bubbles on the electrode and significantly improves catalytic performance, ensuring greater stability and yield in the water photoelectrolysis process. With this advancement, Brazil consolidates its scientific and technological capabilities to lead the development of sustainable and competitive energy solutions on the international stage.
