Fig. 5.

TEM-EDX elemental abundance maps of Cr, Fe, Pd, Ca and Si and their corresponding HAADF images (top left in each frame) for Pd-BnM after terminal reaction with a model Cr(VI) solution, in the absence of co-solutes, while in the presence of excess H₂ gas (a) and formate (b), and the COPR leachate in the presence of excess H₂ gas (c) and formate (d). Note the white bar for scale is 50 nm in length.