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

Table 1.

Hydrogen sensing response of CeO2-Pd-PDA/rGO heterojunction nanocomposite at different operating temperatures and H2 concentrations in the dark.

H2 Concentration (ppm) Response (%)
30 °C 100 °C 150 °C 200 °C
200 101 103 102 100
300 103 106 103 101
400 104 108 104 102
500 106 111 106 102
600 108 114 108 102