Facile synthesis and remarkable hydrogen sensing performance of Pt-loaded SnO 2 hollow microspheres

High performance H2 sensors based on NiO-SnO2 nanosheets in temperature-pulsed operation mode

“…(c) Selectivity of the SnO 2 and NiO-SnO 2 sensors to 200 ppm gases under isothermal and temperature-pulsed operation modes. (d) Comparison of H 2 response in this study and in previous works, including doping[10,11,13,38], Au decoration[9,39], morphology control[40][41][42], heterojunction[16], core-shell structure[43], and nanocomposite[12,18,44,45].…”

“…Hence, the NiO-SnO 2 sensor shows a good selectivity for H 2 . Figure 5(d) compares the [10,11,13,38], Au decoration [9,39], morphology control [40][41][42], heterojunction [16], core-shell structure [43], and nanocomposite [12,18,44,45].…”

Ultrasensitive and Wide‐Range Flexible Hydrogen Sensor Based on Pd Nanoparticles Decorated Ultrathin SnO2 Film

“…Fortunately, noble metals (e.g., Pd, Pt, Au) acted as catalyst can improve the sensing performance of SnO 2 -based materials. [20][21][22][23][24] These noble metals can generate more surface adsorbed oxygen species on sensing materials due to the "spillover effect", thus providing more reactive sites for H 2 gas. Besides, Pd can react with H 2 to form PdH x , making Pd more advantageous in improving sensitivity and selectivity for H 2 over other noble metals.…”

A highly selective, efficient hydrogen gas sensor based on bimetallic (Pd–Au) alloy nanoparticle (NP)-decorated SnO2 nanorods

“…16,20,21 Thus, noble metal decoration on SnO 2 emerges as a viable option in terms of higher sensitivity and low operating temperature, as the strong catalytic activity of noble metals can lower the activation energy of gas adsorption and the barrier height of the reaction, allowing the sensing temperature to be reduced. [22][23][24][25] Thus, research to identify a noble metal catalyst capable of breaking the robust covalent bond in H 2 , which possesses a dissociation energy of 436 kJ mol −1 , at the lowest practical temperature is imperative. 12 Among the available noble metals, palladium (Pd) stands out as a promising choice due to its superior hydrogen solubility and permeability.…”