Fig. 2: HE-NPs@MSs: synthesis protocol and key features.
From: Space-confined synthesis of sinter-resistant high-entropy nanoparticle library

a Schematic diagram of the ICQ synthesis process, including incipient wetness impregnating (I), calcinating in seconds (C), and quenching (Q). b Photograph of as-prepared Senary-HEOs@MCM-41 materials. 20 g of M3O4@MCM-41 (containing Mn, Fe, Co, Ni, Cu, Zn) are prepared via the ICQ process within 5 min. Large-area HAADF-STEM image and HR HAADF-STEM image with color maps of c, d Pt-Quinary-HEOs@MCM-41, e, f Pt-Senary-HEOs@ZSM-5. g Comparison of nanoparticle size and uniformity of high entropy nanomaterials obtained by our ICQ strategy and other synthesis methods in previous works (see Supplementary Table 3 for details).