Hydrothermal synthesis of a bimetallic metal-organic framework (MOF)-derived Co 3 O 4 /SnO 2 composite as an effective material for ethanol detection.
Yang MuZhenkai ZhangZhiguo YangChen YueZhenyue LiuDavoud DastanXi-Tao YinXiaoguang MaPublished in: Dalton transactions (Cambridge, England : 2003) (2023)
This study utilized a hydrothermal method and air calcination to prepare a bimetallic metal-organic framework (MOF) derived Co 3 O 4 /SnO 2 nanocomposite material, which was employed as a sensing material for ethanol detection. The structure, elemental composition, and surface morphology of Co 3 O 4 /SnO 2 nanocomposite materials were defined using X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Compared to SnO 2 nanoparticles derived from metal-organic frameworks, the bimetallic metal-organic framework-derived Co 3 O 4 /SnO 2 nanocomposite material exhibits significantly superior ethanol sensing performance. At 225 °C, the response value ( R = R a / R g ) to 100 ppm ethanol is 135, demonstrating excellent repeatability, selectivity and stability. Gas sensitivity assessment findings indicate that the 3 at% (Co/Sn) Co 3 O 4 /SnO 2 nanocomposite is an excellent gas sensing material, providing strong technical support for ethanol detection and environmental monitoring.
Keyphrases
- metal organic framework
- electron microscopy
- reduced graphene oxide
- room temperature
- gold nanoparticles
- perovskite solar cells
- loop mediated isothermal amplification
- label free
- real time pcr
- high resolution
- quantum dots
- magnetic resonance
- anaerobic digestion
- mass spectrometry
- risk assessment
- highly efficient
- heavy metals
- sensitive detection
- simultaneous determination
- structural basis