Fig. 5: Study of the stability of ICNPs@Pt/Al2O3 through recycling experiments.
From: Low pressure amide hydrogenation enabled by magnetocatalysis
a Reaction scheme. b–g Characterization of the catalyst by electron microscopy, including b, c SEM images at different magnifications, d STEM-HAADF, and (e–g) SEM-EDX elemental mapping, (e) Fe, (f) Pt, and (g) Al using Fe Kα, Pt Lα, and Al Kα. h Conversion of 1 and yield of 1a over 4 cycles. i Fe K-edge XANES spectra (normalized). j Pt L3-edge XANES spectra (normalized). Reaction conditions: 1 (12.9 mg, 0.10 mmol), ICNPs@Pt/Al2O3 (35.0 mg, 1.26 µmol Pt), decalin (0.5 mL), H2 (3 bar), 0.5 h, magnetic field (µ0Hmax = 72 mT, 350 kHz). Products yields determined by GC-FID using tetradecane as the internal standard. The product selectivity to 1a is >99%. Data point are average values of three experiments, and error bars represent standard deviations.
