Mineral: |
Birnessite |
Reference: |
PPS04 |
Preparation: |
birnessite (δ-MnO2) was synthesized from a KMnO4 + HCl mixture at 90 °C [24]; thoroughly washed in deionized Milli-Q water and conditioned in N2 - saturated, 0.01 M NaNO3 or NaCl for at least one week prior the experiments |
Purity: |
trace element analysis of studied solids performed by ICP-MS did not detect any impurities within ≤0.1 wt% |
Composition: |
Ga content was below 1 ppm |
Sample characterized via: |
☑ X-ray Diffraction (XRD)
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