Printable Hydrogen Sensor for Distributed Monitoring Applications

Hydrogen is an abundant and clean energy source that can help to decarbonize difficult-to-electrify sectors of the global economy. However, its safe deployment relies on the availability of reliable and cost-effective hydrogen detection technologies. Unfortunately, the vast majority of existing advanced hydrogen sensors are expensive and exhibit high power consumption during continuous operation, which limits their widespread adoption, particularly in emerging applications within the hydrogen economy. In this talk, I will discuss the development of a novel hydrogen sensor technology based on solution-processable active materials that can operate within wide temperature and humidity ranges. Emphasis will be placed on the novel sensing mechanism and the prospects for further development. The new type of hydrogen sensor exhibits high sensitivity and responsivity, ultra-low power consumption, and record-short response times. Compared to commercial hydrogen detector technologies, our printed sensors demonstrate superior performance under different real-world sensing scenarios, making the technology a strong candidate for use in distributed sensing networks for the early warning of hydrogen leaks and for preventing potential explosions or fires.