High‐Yield Synthesis of Nanocrystalline Tin Dioxide by Thermal Decomposition for Use in Gas Sensors

Abstract

High‐yield synthesis of nanocrystalline tin dioxide (nano‐SnO2) using a two‐step thermal decomposition process is reported. Stannous chloride with glacial acetic acid was the precursor to form tin diacetate, whose thermal decomposition gave nano‐SnO2. The yield of respective steps matched well with theoretically expected values, by 85% for tin diacetate and by 94% for nano‐SnO2. Material characterization was done using X‐ray diffraction (phase and particle size) and transmission electron microscopy. The nano‐SnO2 particles were successfully used to develop thick film H2 sensors. The sensor characteristics were closely related to the micro‐structural properties of nano‐SnO2.

Preparation and Characterization of SnO2 / AC as a Novel High Surface Area Nanocatalyst

“…Then the sample was entered the oven for 2 h at 403 K. The SnO 2 / AC nanocatalyst powder kept labeled in sealed glass flask for used in following experiments. The simple explanation of the mechanism of formation and growth of SnO 2 in the presence of Activated Carbon can be described by the following [20,21]…”

UV‐visible absorption and photoluminescence characteristics of SnO2 nano‐tube/wire arrays fabricated by LPD method

“…SnO 2 belongs to a class of materials with several attractive characteristics that combines good chemical stability, high electrical conductivity, high reflective index, high gas sensitivity, and electrochemical properties . These attractive properties have led to a number of applications such as light emitting diodes, field emission displays, gas sensors, photocatalyst materials, anode materials for lithium ion batteries, and short‐wavelength optoelectronic devices . Another property of SnO 2 is that high optical transparency in the visible range of wavelength, which makes it very suitable as transparent conductive electrodes in solar cells, transparent field effect transistors, and energy conserving materials .…”