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. 2022 May 10;12(10):1628. doi: 10.3390/nano12101628

Table 2.

H2 sensing response of the CeO2-Pd-PDA/rGO heterojunction nanocomposite sensor towards H2 with different concentrations without and with UV illumination at 100 °C and 0% RH.

H2 Concentration (ppm) 200 300 400 500 600
Response (%), without UV 103 106 108 111 114
Response (%), with UV 103 107 111 115 119