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Remarkable thermal stability of gold nanoparticles functionalised with ruthenium phthalocyanine complexes
Shirin R King1, Susan Shimmon1, Angus R Gentle1
1School of Mathematical and Physical Sciences, University of Technology Sydney, Broadway, Ultimo, NSW 2007, Australia.
Abstract:
A gold nanoparticle (AuNP) ruthenium phthalocyanine (RuPc) nanocomposite has been synthesised that exhibits high thermal stability. Electrical resistance measurements revealed that the nanocomposite is stable up to ∼320 °C. Examination of the nanocomposite and the RuPc stabiliser complex using thermogravimetric analysis and differential scanning calorimetry show that the remarkable thermal stability is due to the RuPc molecules, which provide an effective barrier to sintering of the AuNPs.
