Dried Gold Nanoparticles Melting Point

Melting point of dried gold nanoparticles prepared with ultrasonic spray pyrolysis and lyophilisation

Gold nanoparticles are extremely interesting, because they have completely different electronic, optical, and thermal properties compared to their bulk counterparts. Depending on their size, their melting points are tens or hundreds of degrees lower than bulk gold. For the practical use of dried gold nanoparticles, it is necessary to know their melting point temperature, as the basic processing processes, such as heat treatment, sintering, annealing, etc., depend on it. Two methods were applied for determining their melting temperature: uniaxial microcompression and differential scanning calorimetry (DSC) analysis.