Facile synthesis and remarkable hydrogen sensing performance of Pt-loaded SnO 2 hollow microspheres
Source abstract
Abstract
Abstract SnO 2 hollow microspheres (HMSs) have been prepared through a facile hydrothermal route combining with subsequent calcination without any additive templates. The obtained porous SnO 2 HMSs process a large specific surface area of 64.2 m 2 ·g –1 and exhibit high gas sensing capabilities. Surface loading Pt nanoparticles on SnO 2 HMSs improves the sensor response and reduces the operating temperature for achieving high sensitivity, fast response and excellent selectivity to hydrogen at room temperature. The sensor response to 200 ppm H 2 is 21 at 50 °C with a response time of 4 s. These remarking sensing properties are attributed to the synergism provided by the unique porous hollow spherical structure of SnO 2 HMSs and the catalytic activity of Pt nanoparticles.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · Analytical Chemistry and Sensors
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
References (28)
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