Journal of Colloid and Interface Science, Vol.241, No.1, 289-292, 2001
Fiber-like gold particles prepared in cationic micelles by UV irradiation: Effect of alkyl chain length of cationic surfactant on particle size
Fiber-like gold particles were prepared by irradiation of HAuCl4 solutions at 253.7 nm in the presence of alkyltrimethylammonium chlorides (C(n)TAC: n = 10, 12, 14, and 16). Fiber-like gold particles were obtained above a threshold concentration of C(n)TAC. The length of fiber-like gold particles increases with increasing alkyl chain length of C(n)TAC.
Keywords:noble metals;gold;anisotropic;gold fibers;nanorods;cation;surfactant;irradiation;alkyl chain length;TAC;UV irradiation