The SMSI of Pt-TiO₂ During the Crystalline Phase Transformation and Its Effect on CO Oxidation Performance

Microenvironment engineering of supported metal nanoparticles for chemoselective hydrogenation

“…It should be noted that such a recognition is rooted in the understanding of the work modes of enzymes. 14,17,18 Notably, the inuence of the microenvironment on catalysis has a substantial difference with metal-support interaction, which generally modulates the catalytic performance through inducing the electronic effect, 19,20 geometric effect [21][22][23] and strong metal-support interaction 11,[24][25][26][27] of metal NPs, whereas in biological systems, enzymes, such as metalloenzymes, could catalyze chemical transformations with incredible efficiency through the elegant cooperation of metal sites and protein frameworks. [28][29][30] Specically, the binding pocket, constructed by amino acid residues around metal sites, assists in the recognition, enrichment, pre-organization and activation of substrates via non-covalent interactions, such as hydrogen bonds, p-p interactions, hydrophobic interactions and electrostatic interactions.…”

Double-Edged Sword Effect of Classical Strong Metal–Support Interaction in Catalysts for CO2 Hydrogenation to CO, Methane, and Methanol

“…A similar phenomenon of crystal phase-dependent SMSI has been observed in Rh/TiO 2 system by Yu et al 161 They found that the Rh/TiO 2 with anatase crystal phase presented a SMSI stronger than that of the Rh/TiO 2 with rutile structure during an H 2 prereduction process (Figures 9b−e). Recently, Jia et al 162 prepared a Pt/TiO 2 catalyst with a brookite structure to explore the influence of the TiO 2 crystal phase on SMSI creation. They found that reduction treatment at 500 °C induced the brookite phase to transform into the anatase phase.…”