fig5
From: Single and dual atom catalysts for nitrate reduction from metal tuning to performance descriptors
Figure 5. A schematic illustration of the synthesis strategies of SACs/DACs: (A) pyrolysis; (B) pulse discharge; (C) laser irradiation; (D) wet chemical. Each colour ball corresponds to metal atom, two different colours are used to show two different metals were involved. To show salt square shape was used in order to distinguish from metal atoms. SACs: Single-atom catalysts; DACs: dual-atom catalysts.
