Parameters Affecting the Microwave-Assisted Polyol Synthesis of Silver Nanorods

Table 1

Rod diameter, length, and number of rods produced for salts evaluated in this study. ^aNominal aspect ratio is the mean measured length divided by the mean diameter. ^bThe number of rods intersecting a 2 by 3 micron grid, multiple images taken at various location on stub.

		Concentration (mM)			Ag rod properties (mean and Std. Dev.)
Salt	Atomic radius (metal) (pm)	Metal	Chlorine	Cl : AgNO3 ratio	Diameter (nm)	Length (μm)	Nominal AR^a	No. of rods^b
NaCl	186	4.3	4.3	1 : 6	38.6 (9.1)	7.6 (1.1)	197	60 (9)
KCl	227	4.3	4.3	1 : 6	35.6 (9.0)	9.1 (1.3)	255	51 (4)
MgCl2	160	2.15	4.3	1 : 6	31.4 (4.5)	3.7 (1.2)	118	49 (9)
		4.3	8.6	1 : 3	26.1 (6.7)	1.2 (0.3)	46	12 (3)
CaCl2	197	2.15	4.3	1 : 6	41.0 (13.2)	7.4 (1.5)	180	58 (9)
		4.3	8.6	1 : 3	35.8 (8.8)	8.5 (1.4)	237	30 (3)
MnCl2	127	2.15	4.3	1 : 6	31.9 (8.6)	8.4 (1.4)	263	61 (6)
		4.3	8.6	1 : 3	41.8 (10.5)	7 (1.8)	167	29 (3)
FeCl3	126	1.43	4.3	1 : 6	57.3 (17.8)	0.5 (0.2)	9	23 (6)
		4.3	12.9	1 : 2	No rods found
CuCl2	128	2.15	4.3	1 : 6	118.8 (52.7)	2.7 (1.3)	23	13 (2)
		4.3	8.6	1 : 3	168.7 (48.4)	1.3 (0.6)	8	9 (1)