[ industry update ]
Calicat breaks 2V barrier with zero-iridium PEM electrolyzer catalyst California Catalysts™( Calicat™), formerly H2U Technologies, has announced a landmark achievement for generation 3 of its flagship product, the Amplifier zero-iridium PEMwe OER catalyst, which has achieved an unprecedented activity milestone of 2 Volts at a current density of over 2 A / cm ².
Efforts to eliminate iridium from PEM electrolyzers have long been hindered by trade-offs between activity and durability. According to Calicat, while many non-iridium catalysts( such as ruthenium) have shown sub-2V initial activity, they often experience unacceptable voltage drift under real-world current densities. The company states that Amplifier stands apart by delivering both high performance and durability. In an ongoing durability experiment, Amplifier has reportedly achieved over 15,000 hours of operation with a voltage drift of just 4 µ V / hr, which Calicat describes as an industryleading result.
“ Achieving this level of performance is not just a technological milestone but an industrydefining moment,” said Jourdan Urbach, CEO of Calicat.“ Amplifier Gen 3 represents the commercialization of four years of rigorous R & D, leveraging AI-driven material discovery and high-throughput experimentation to eliminate our sector’ s looming rare metals threat. By delivering iridium-beating durability alongside high activity, we are empowering our customers to plan their green hydrogen ambitions unburdened by price volatility.”
previous work in renewable gases and CO 2
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H2MET aims to improve the accuracy and reliability of hydrogen flow measurement, ensuring a trusted foundation for hydrogen trading and supporting the role of hydrogen in a more efficient energy transition.
Through this initiative, DNV’ s Technology Centre in Groningen, the Netherlands, will provide an advanced testing environment for hydrogen operators and technology providers to validate metrology solutions. The project will support the development of essential measurement standards, fostering industry readiness for hydrogen’ s expansion in energy systems worldwide.
The H2MET JIP provides a platform for industry collaboration, enabling participants to share knowledge and establish operational limits for hydrogen flow metering. Central to the project is a highly accurate, traceable reference system that will assess the performance of various hydrogen metering technologies, supporting the European hydrogen flow traceability chain and future hydrogen trading.
H2MET will also evaluate different metering technologies, drawing on DNV’ s 50 years of expertise in natural gas flow measurement and its world-class testing facilities. As one of the few organizations globally equipped for advanced hydrogen flow research, DNV offers advanced testing and validation services to support industry adoption.
DNV launches H2Met JIP to advance hydrogen flow metrology DNV has launched the H2MET Joint Industry Project( JIP) to advance metrology for 100 % hydrogen flow applications. Building on
52 Hydrogen Tech World | Issue 21 | April 2025