Hydrothermal Synthesis and Hydrogen Sensing Properties of Nanostructured SnO2 with Different Morphologies

• DOI: 10.1155/2014/291273
• Publication Date: 2014-06-16T21:32:11Z
• Authors: Weigen Chen; Hongli Gan; Wei Zhang; Zeyu Mao
• Keywords: Hydrothermal Synthesis

In this work, nanoscale SnO 2 with various geometrical morphologies, including pine needle‐like, sphere‐like, sheet‐like, grape‐like nanostructures, was prepared via a facile hydrothermal process. Microstructures and morphologies of all the as‐synthesized products were characterized by X‐ray diffraction (XRD) field emission scanning electron microscopy (FESEM). Meanwhile, specific surface areas as‐prepared nanostructures determined Brunauer‐Emmett‐Teller (BET) analysis. Gas sensors fabricated their gas sensing properties towards hydrogen systematically investigated. The results indicate needle‐like structure exhibits exclusive better performances to than other which can be attributed its novel shape large area. Such an unexpected morphology is promising candidate for use as material in future sensor applications.