Highly catalytic hydrogen sensing properties of the nano percolated Pd/Mg/Ti nanoparticles layers decorated on Si substrate
KAUST DepartmentPhysical Science and Engineering (PSE) Division
Embargo End Date2023-02-24
Permanent link to this recordhttp://hdl.handle.net/10754/667857
MetadataShow full item record
AbstractHighly catalytic hydrogen sensing properties of the nano percolated Pd/Mg/Ti nanoparticles layers on Si substrate have been investigated. The catalytic nanomaterials (Pd/Mg/Ti) were deposited on the Si substrate by using a radio frequency (RF) magnetron sputtering system. An optimized percolated sensing surface was introduced by varying the deposition conditions of the Pd/Mg/Ti nanoparticles (NPs) layers. After preparing the sensing device, resistance was observed to increase at the presence of hydrogen gas (H2) and a completely reversible process was recorded for its absence. Besides, the sensor shows significant results such as a broader sensing range (1,000 ~ 40,000 ppm), a fast response time of ~1 s for a 10,000 ppm (1 vol%) H2 concentration at 160 °C temperature. A highly stable (up to ~50 days) sensing performance and good selectivity were also observed for the sensor. This Pd/Mg/Ti NPs layers on Si substrate have lucrative advantages as an H2 sensor for fast response and highly stable sensing performance.
CitationRahaman, M. H., Yaqoob, U., Uddin, M. M., & Kim, H. C. (2021). Highly catalytic hydrogen sensing properties of the nano percolated Pd/Mg/Ti nanoparticles layers decorated on Si substrate. Applied Surface Science, 549, 149203. doi:10.1016/j.apsusc.2021.149203
SponsorsThis work was supported by the 2019 Research Fund of University of Ulsan.
JournalApplied Surface Science