Impact of Pd nanoparticle loading method on SnO2 surface for natural gas detection in humid atmosphere

Hierarchically porous PdO-functionalized SnO2 nano-architectures for exclusively selective, sensitive, and fast detection of exhaled hydrogen

“…This might be attributed to a decrease in OH radicals on SnO 2 surface by PdO which provide O 2− adsorption. 42,45 These above results demonstrate that the fabricated sensor can be used to detect sub-ppm-level hydrogen under a varied-humidity atmosphere ( e.g. , breath analysis).…”

“…41–44 In particular, SnO 2 has been adopted as a sensing material with Pd or PdO catalysts. 41–45 Additionally, the use of Pd and PdO can improve the resistance against moisture poisoning under humid conditions. 42,45…”

“…41–45 Additionally, the use of Pd and PdO can improve the resistance against moisture poisoning under humid conditions. 42,45…”

Electrospinning of Pd–In2O3 Nanofibers for High-Performance Room Temperature Hydrogen Sensors

“…Moreover, PdO provides the initial adsorption site for O 2 – . The adsorption of O 2 – on PdO expands the electron depletion layer . The last reason is the catalytic effect of Pd.…”

“…The adsorption of O 2 − on PdO expands the electron depletion layer. 50 The last reason is the catalytic effect of Pd. Owing to the low conductivity of indium oxide, the adsorbed oxygen is not dissociated into oxygen atoms at room temperature.…”