Thermocatalytic sensors with Pd-Pt-Al2O3 catalyst

Investigation of catalytic hydrogen sensors with platinum group catalysts

“…The most studied and widely used catalysts in catalytic sensors are Pd-based catalysts which are used either as pure Pd or Pt+3Pd. The observed hysteretic behavior of sensors response with temperature also appeared multiple times for similar catalysts; it is explained by partial transition of PdO to metallic Pd at temperatures higher than 500 °С and reverse oxidation of metallic Pd with temperatures decreasing below 400 °С that was observed before in papers [15][16][17].…”

Laminating two-layer thick films structure tin oxide-based butane gas sensor operating at low temperature

“…Several designs of sensors' construction, SnO 2 -based, were proposed for achieving the selectivity, sensitivity and stability of combustion gas detection with respect to ethanol vapour such as directly doping of small amounts of noble metals (Pd, Pt, Rh and Ru) into SnO 2 [3][4][5][6][7][8][9][10][11][12][13], a suitable filter containing noble metal catalysts method [14][15][16] and a directly coating selective thin film on the surface of SnO 2 layer structure [17,18].…”