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Comparison of kinetic parameters of 4-Nitrophenol reduction reaction at two concentrations of gold nanoparticles.
| GNPs conc.(nM) | Rate constant at35 °C (min-1) | Rate constant at40 °C (min-1) | Rate constant at 45 °C (min-1) | Activation energy(kcal/mol) | Frequency factor(min-1) | Entropy of activation |
|---|---|---|---|---|---|---|
| 11.8 | 0.019 ± 1.2×10-3 | 0.04 ± 9.6×10-4 | 0.09 ± 2.3×10-3 | 30.24 ± 1.025 | 3.49 × 1019 | 64.11 |
| 15.5 | 0.099 ± 9.9×10-4 | 0.198 ± 1.1×10-2 | 0.29 ± 8.3×10-3 | 19.87 ± 3.417 | 1.03 × 1014 | 89.4 |
