|About this Abstract
||2016 TMS Annual Meeting & Exhibition
||2016 Functional Nanomaterials: Emerging Nanomaterials and Techniques for 3D Architectures
||Synthesis, Characterization and Sensing Properties of Palladium- Doped Tin Dioxide Nanocomposites
||Raman Chadha, Shashi Janeoo, Poonam Jain, Mamta Sharma, Gurinder Singh, S.K. Tripathi, J.K. Goswamy
|On-Site Speaker (Planned)
Tin dioxide (SnO2) is n-type semiconductor exhibiting tunable physicochemical properties and is extensively used as a gas sensor for detection of various toxic and explosive gases. Pure and Pd doped SnO2 with different Pd concentrations have been synthesized using chloride based inorganic sol-gel route. In order to identify the morphology and location of additives of different concentration in SnO2, these nanocomposites have been characterized structurally, optically and electrically. The morphologies of all the samples in TEM and SEM micrographs are found to be nearly spherical. FTIR study reveals a good interaction between Pd and SnO2 nanoparticles. The band gap of pure and doped SnO2 is evaluated by UV-VIS spectral analysis. Thin films of Pd-doped SnO2 exhibit strong enhancement in conductivity, when exposed to hydrogen. This result can be utilized in designing efficient hydrogen gas sensor.
Key Words: SnO2; Pd; TEM; SEM; FTIR;UV-VIS; PL