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Photocatalytic H2 evolution experiments of L1 (red), L2 (orange), L3 (gold), centrifuged L3 materials (L3*, yellow), L4 (green), L5 (blue), L7 (purple), and L9 (black) assemblies at 9.57 mM and 0.83 wt % PDDA. Gel-containing samples were surrounded in 0.85 M ascorbic acid/ascorbate at pH 4 and 19.5 μM water-soluble nickel catalyst. H2 samples were purged with Ar and illuminated for 18 h prior to headspace collection.
