Browsing by Advisor Zhao, Yiping

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  • Authors: Pham, Minh T.;  Advisor: Luong, Hoang M.; Pham, Huy T.; Guin, Tyler; Zhao, Yiping; George K., Larsen; Nguyen, Tho D.;  Co-Author: - (2021)

    As hydrogen gas increasingly becomes critical as a carbon-free energy carrier, the demand for robust hydrogen sensors for leak detection and concentration monitor will continue to rise. However, to date, there are no lightweight sensors capable of meeting the required performance metrics for the safe handling of hydrogen. Here, we report an electrical hydrogen gas sensor platform based on a resistance nanonetwork derived from Pd-Co composite hole arrays (CHAs) on a glass substrate, which meets or exceeds these metrics. In optimal nanofabrication conditions, a single poly(methyl methacrylate)(PMMA)-coated CHA nanosensor exhibits a response time (t80) of 1.0 s at the lower flammability ...