Samarium Oxide as a Novel Sensing Material for Acetone and Ethanol

摘要

Self-assembly structured Sm_2O_3 nanomaterials were prepared by a simple and cost effective hydrothermal method and subsequent annealing at 800°C in air. The size, shape and phase composition of the structures synthesized by changing the hydrothermal processing time were characterized by SEM-EDX, XRD, micro-Raman and photoluminescence (PL) analysis. Differences in particle aggregation and coalescence were reported upon varying the timing of hydrothermal process (from 24 to 36 h). Sensors performances of the synthesized Sm_2O_3 nanostructures have been investigated for the monitoring of two important volatile organic compounds (VOCs) such as ethanol and acetone.