Table 2. Overview of the P10 Samples Investigated Herein: Metal Content as Determined by ICP-OES; Hydrogen Evolution Rate (HER) in a Solvent Mixture Consisting of Equal Volumes of H2O, MeOH, and TEA; Half-Lifetime of the Electron Polaron Decay as Observed via Transient Absorption Spectroscopy, Defined with Respect to the Signal Amplitude at 1 μs.
| residual metal | metal content (ppm) | HER (μmol h–1 g–1) | t50% (s) |
|---|---|---|---|
| Ni | 4000 | 1897 | 2.3 × 10–2 |
| Pd | 2000 | 2825 | 1.3 × 10–3 |
| Pd | 7000 | 5332 | 1.5 × 10–4 |
| Pd | 27000 | 4906 | 5.0 × 10–5 |