Alkanethiol-stabilized decahedron of gold nanoparticles

A more convenient approach to obtain decahedron of gold particles in solution through a simple chemical reaction is reported in this communication. As-prepared samples were characterized by TEM and UV–vis methods. The size of the gold decahedron is about 100 nm, which possesses a structure of multiply twinned particles (MTPs). The molar ratio of n-dodecanethiol to HAuCl4 plays a key role in forming decahedrons of gold nanoparticles.