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. 2016 Sep 2;2(9):e1501425. doi: 10.1126/sciadv.1501425

Fig. 1. Composition and morphology characterization of MgO NPs.

Fig. 1

(A) XRD pattern of various-sized MgO NPs. (B) TEM image of 85-nm-sized porous MgO NPs, with a plane size distribution analysis (inset). (C to F) Temperature effect on NP size. TEM images of MgO NPs with different sizes obtained from the thermolysis of 2 mmol of Mg(acac)2·2H2O in OM/OA/ODE = 4:1:5 (molar ratio) at different temperatures for the same reaction time of 30 min: 265°C (C), 280°C (D), 300°C (E), and 320°C (F). From the TEM images, the average sizes of MgO NPs can be estimated to be ~40 nm (C), ~85 nm (D), ~115 nm (E), and ~170 nm (F), respectively.