SOLID STATE MORPHOLOGY AND SIZE TUNING OF NANOSTRUCTURED PLATINUM USING MACROMOLECULAR COMPLEXES

Journal of The Chilean Chemical Society

BAEZ, RODRIGO¹  VALENZUELA, MARÍA LUISA²  DÍAZ, CARLOS³  SEGOVIA, MARJORIE³ 

[1] Universidad Andres Bello, Santiago, Chile;Universidad Autónoma de Chile, Santiago, Chile;Universidad de Chile, Santiago, Chile

关键词: Nanoparticles;    Solid State;    Polymers;    Plasmon.;   

DOI  :  10.4067/S0717-97072015000400016

学科分类：化学（综合）

来源: Sociedad Chilena de Quimica

【 摘 要 】

The macromolecular complexes Chitosan●(PtCl2)n and PSP-co-4-PVP●(PtCl2)n, were prepared from the respective polymer and PtCl2 in metal:polymer molar ratios 1:1 and 1:5. Pyrolisis of the macromolecular complexes Chitosan●(PtCl2)n and PSP-co-4-PVP●(PtCl2)n at 800 °C under air affords cubic nanostructured Pt in the pure phase. The morphology of the pyrolityc products depends on the molar metal:polymer ratio; i.e. a "cotton" 3D shape for the 1:1 ratio and a 'foamy" 3D shape for the 1:5 ratio. On the other hand, the particle size depends on the polymer nature, obtaining Pt nanoparticles as small as 6 nm for the chitosan precursors in both molar ratio.

【 授权许可】

Unknown