Synthesis of Silver Nanocrystallites by a New Thermal Decomposition Method and Their Characterization

ETRI Journal

关键词: silver-oleate complex;    Thermal Decomposition;    Silver Nanoparticle;   

Others  :  1185152
DOI  :  10.4218/etrij.04.0103.0061

【 摘 要 】

We formed silver nanocrystallites by the thermaldecomposition of a Ag⁺¹-oleate complex, which wasprepared by a reaction with AgNO₃ and sodium oleate in awater solution. The resulting monodispersed silvernanocrystallites were produced by controlling thetemperature (290 ^oC). Transmission electron microscopic(TEM) images of the particles showed a 2-dimensionalassembly of the particles with a diameter of 9.5 ± 0.7 nm,demonstrating the uniformity of these nanocrystallites. Anenergy-dispersive X-ray (EDX) spectrum and X-raydiffraction (XRD) peaks of the nanocrystallites showed thehighly crystalline nature of the silver structure. Weanalyzed the decomposition of the Ag⁺¹-oleate complexusing a Thermo Gravimetric Analyzer (TGA) andobserved the crystallization process using XRD.

   

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