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Title: Hydrothermal synthesis and LPG sensing ability of SnS nanomaterial
Authors: Muthuvinayagam, A
Viswanathan, B
Keywords: Nanoparticles;Semiconductors;Gas sensors;Hydrothermal method;Tin sulphide
Issue Date: Feb-2015
Publisher: NISCAIR-CSIR, India
Abstract: The preparation of nanoparticles of tin sulfide is reported employing the hydrothermal method. The X-ray diffraction results of tin sulfide nanopowder confirm its orthorhombic crystalline structure. Transmission electron micrographs show that the as-prepared SnS nanoparticles are spherical in shape with the average size of 3-5 nm. Control over the particle size and size distribution have been achieved by optimizing the experimental parameters such as precursor concentration, water concentration, reaction time and temperature. The scanning electron micrographs suggest the presence of spherical aggregates of smaller as well as larger sizes. Thermal stability of these nanoparticles is investigated by thermogravimetric analysis and differential scanning calorimetry. The prepared nanomaterial shows good gas sensing response for liquefied petroleum gas at low operating temperatures. The high crystallinity and control over the particle size make the as-synthesized SnS an ideal candidate for LPG sensing.
Page(s): 155-160
ISSN: 0975-0975(Online); 0376-4710(Print)
Appears in Collections:IJC-A Vol.54A(02) [February 2015]

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