Cobalt-Doped Ceria Sensitizer Effects on Metal Oxide Nanofibers: Heightened Surface Reactivity for High-Performing Chemiresistive Sensors.

ABSTRACT: Chemiresistive gas sensors based on semiconducting metal oxides typically rely on noble metal catalysts to enhance their sensitivity and selectivity. However, noble metal catalysts have several drawbacks for practical utilization, including their high cost, their propensity for spontaneous agglomeration, and poisoning effects with certain types of gases. As such, in the interest of commercializing the chemiresistive gas sensor technology, we propose an alternative design for a noble-metal-free sensing material through the case study of Co-doped ceria (Co-CeO₂) catalysts embedded in a SnO₂ matrix. In this investigation, we utilized electrospinning and subsequent calcination to prepare Co-CeO₂ catalyst nanoparticles integrated with SnO₂ nanofibers

SUBMITTER: Baek JW 

PROVIDER: S-EPMC11295259 | biostudies-literature | 2024 Jul

REPOSITORIES: biostudies-literature