Fig. 4: Structure characterization of Pt-based catalysts with varied size.
From: Decoupling the electronic and geometric effects of Pt catalysts in selective hydrogenation reaction
Representative HRTEM images (a1–o1) of as-synthesized Pt/CeO2 (a–c), Pt/La2O3 (d–f), Pt/TiO2 (g–i), Pt/γ-Al2O3 (j–l), and Pt/θ-Al2O3 (m–o) catalysts with varied Pt particle sizes and its corresponding ratio of R1/R2 (a2–o2). a 3.53 nm-Pt/CeO2. b 4.66 nm-Pt/CeO2. c 6.37 nm-Pt/CeO2. d 3.62 nm-Pt/La2O3. e 4.67 nm-Pt/La2O3. f 6.38 nm-Pt/La2O3. g 3.66 nm-Pt/TiO2. h 4.61 nm-Pt/TiO2. i 6.34 nm-Pt/TiO2. j 3.62 nm-Pt/γ-Al2O3. k 4.64 nm-Pt/γ-Al2O3. l 6.25 nm-Pt/γ-Al2O3. m 3.59 nm-Pt/θ-Al2O3. n 4.68 nm-Pt/θ-Al2O3. o 6.33 nm-Pt/θ-Al2O3. Insets in the (a1–o1) were the corresponding size distributions. The scale bar in all the figures are 20 nm.
