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Relative abundance as a function of the RIF/NP diameter (in log scale) collected using a flow of N2 of 2 L/min (
) or 5 L/min (
). Inserts: Micrograph of NP analyzed by high resolution scanning electron microscope (STEM) FE Hitachi S-5500 (0.4 nm at 5kV) with a BF/DF Duo-STEM detector.