Room-temperature acetone gas sensing using Sm-doped Co-Zn ferrite nanoparticles: role of mesoporosity and oxygen vacancies in enhancing sensor response.

ABSTRACT: This study presents the synthesis, structural characterization, and acetone gas sensing behavior of nanocrystalline Co-Zn-Sm ferrites (CZSmF) with the general formula Co_0.7Zn_0.3Sm _x Fe_2-x O₄ (x = 0-0.04), synthesized via the sol-gel auto-combustion method. Rietveld-refined X-ray diffraction (XRD) analysis confirms the formation of a single-phase spinel structure (space group Fd3̄m), with crystallite sizes ranging between 31 and 43 nm as determined by the Williamson-Hall method. Transmission electron microscopy (TEM) and selected area electron diffraction (SAED) reveal well-defined nanocrystals with predominantly oval morphology and an average particle size of ∼28 nm. Brunauer-Emmett-Teller (BET

SUBMITTER: Mugutkar AB 

PROVIDER: S-EPMC12495296 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature