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Hydrogen Sensor

Hydrogen is essential for chemical processes and a promising energy carrier due to its high energy density, sustainability, and zero carbon emissions. However, its broad flammability range (4%-74%) necessitates reliable sensors for leak detection across the hydrogen supply chain. As hydrogen production and fuel cell technologies grow, the demand for sensors with high stability, sensitivity, rapid response, wide dynamic range, low detection limits, cost efficiency, and spark-free operation will increase. Concerns about hydrogen's indirect warming effects—through atmospheric reactions producing greenhouse gases—highlight the need for sensors with ultra-low detection limits at the ppb level, especially to monitor leaks during industrial processes.

     In collaboration with Prof. Tho Nguyen, SRNL researchers, and industry partners, we are developing state-of-the-art hydrogen sensors. Our focus includes electric and optical sensing technologies, leveraging GLAD and nanosphere lithography with co-evaporation. Key areas include nanostructure design, materials innovation, advanced sensing mechanisms, and theoretical advancements.

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Publication List
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