Characterisation of Au25(P12)x(C5)18−x GNCs prepared at different P12 feed ratios.
P12 feed ratio (%) | Zeta potential ± SD (mV) | Size ± SD (nm) | Primary product (P12/C5) | Secondary product(s) (P12/C5) | Deconvoluted MW (Da) |
---|---|---|---|---|---|
0 | −4.7 ± 1.1 | 1.18 ± 0.21 | 0/18 | — | 11 282 |
10 | 8.8 ± 0.6 | 1.15 ± 0.23 | 1/17 | 2/16 | 11 176 |
20 | 14.1 ± 2.0 | 1.21 ± 0.32 | 1/17 | 2/16 | 11 167 |
30 | 24.1 ± 0.9 | 1.11 ± 0.41 | 4/14 | 5/13 | 10 954 |
40 | 36.3 ± 2.3 | 1.15 ± 0.22 | 7/11 | 8/10 | 10 710 |
45 | 37.5 ± 1.6 | 1.19 ± 0.24 | 8/10 | 7/11 & 9/9 | 10 708 |
50 | 43.3 ± 1.5 | 1.16 ± 0.23 | 8/10 | 7/11 & 9/9 | 10 662 |
60 | 49.5 ± 3.1 | 1.14 ± 0.28 | 9/9 | 8/10 | 10 575 |
70 | 56.9 ± 3.1 | 1.15 ± 0.26 | 11/7 | 10/8 & 12/6 | 10 466 |
80 | 62.5 ± 1.9 | 1.17 ± 0.17 | 12/6 | 11/7 | 10 400 |
90 | 66.5 ± 1.0 | 1.14 ± 0.27 | 13/5 | 12/6 | 10 327 |
100 | 71.4 ± 1.6 | 1.18 ± 0.22 | 18/0 | — | 9956 |