Ethanol sensing properties of networked In2O3 nanorods decorated with Cr2O3-nanoparticles
Source abstract
Abstract
Abstract In 2 O 3 nanorods decorated with Cr 2 O 3 nanoparticles were synthesized by thermal evaporation of In 2 S 3 powder in an oxidizing atmosphere followed by solvothermal deposition of Cr 2 O 3 and their ethanol gas sensing properties were examined. The pristine and Cr 2 O 3 -decorated In 2 O 3 nanorods exhibited responses of ~524% and ~1053%, respectively, to 500-ppm ethanol at 200 °C. The Cr 2 O 3 -decorated In 2 O 3 nanorod sensor showed stronger electrical response to ethanol gas at 200 °C than the pristine In 2 O 3 nanorod counterpart. The former also showed faster response and recovery than the latter. The pristine and Cr 2 O 3 -decorated In 2 O 3 nanorod sensors showed the strongest response to ethanol gas at 250 and 200 °C, respectively. The Cr 2 O 3 -decorated In 2 O 3 nanorod sensor showed selectivity for ethanol gas over other reducing gases. The underlying mechanism for the enhanced response, sensing speed and selectivity of the Cr 2 O 3 -decorated In 2 O 3 nanorod sensor for ethanol gas is discussed.
Source: openaire · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Advanced Chemical Sensor Technologies · ZnO doping and properties
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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