TY - JOUR T1 - Facile synthesis and gas sensing properties of nanotriangular tin oxide JF - Materials Letters Y1 - 2008 A1 - Deshmukh, Rupali G. A1 - Badadhe, Satish S. A1 - Vaishampayan, Mukta V. A1 - Mulla, Imtiaz S. KW - Nanomaterials KW - Oxides KW - Semiconductors KW - sensors AB -

In the present study we report a simple and convenient chemical route using pentaerythritol as a structure-directing agent for the synthesis of crystalline nanotriangular SnO2. We propose the scheme for the formation of nanotriangular structures wherein the preliminary spherical nanocrystallites are formed due to the low surface energy associated with them. These spherical nanocrystallites grow into the various linear intermediate shapes like Y, bi and tripods, which finally lead to the triangles, pyramids and bipyramids. Such variation in the structure occurs due to the structure directing pentaerythritol. These polycrystalline SnO2 nanomaterials with structural peculiarities were tested for the gas sensing characteristics. Their response towards ethanol vapor, H-2 and LPG were investigated. It was found to exhibit high response towards ethanol vapors at the operating temperature of 250 degrees C. (C) 2008 Elsevier B.V. All rights reserved.

PB - ELSEVIER SCIENCE BV CY - PO BOX 211, 1000 AE AMSTERDAM, NETHERLANDS VL - 62 IS - 28 U3 - Foreign U4 - 2.347 ER -