Supporting information Fully alloyed metal nanorods with highly tunable properties

摘要: All chemicals were used as received without further purification. Hexadecyltrimethylammonium bromide (CTAB,> 98.0%) and sodium oleate (NaOL,> 97.0%) were purchased from TCI America. Hydrogen tetrachloroaurate trihydrate (HAuCl4 H2O), sodium hydroxide (98%), and polyvinylpyrrolidone (PVP, average molecular weight 58000g/mol, K29-32) were purchased from Acros Organics. L-Ascorbic Acid (BioXtra,≥ 99%), silver nitrate (AgNO3,≥ 99%), sodium borohydride (NaBH4, 99%), hydrochloric acid (HCl, 37wt% in water), tetraethyl orthosilicate (TEOS, 98%), ammonium hydroxide solution (≥ 25 wt% in water), sodium tetrachloropalladate-(II)(Na2PdCl4, 98%) and potassium tetrachloroplatinate-(II)(K2PtCl4, 98%) were purchased from Sigma-Aldrich. Ultrapure water (Millipore Milli-Q grade) with a resistivity of 18.2 MΩ was used in all of the experiments. All glassware for the AuNR synthesis was cleaned with fresh aqua regia (HCl/HNO3 in a 3: 1 volume ratio), rinsed with large amounts of water and dried at 100◦ C before usage.