Formation of different promoted metallic phases in PtFe and PtSn catalysts supported on carbonaceous materials used for selective hydrogenation

Construction of ultrafine and stable PtFe nano-alloy with ultra-low Pt loading for complete removal of CO in PROX at room temperature

“…As shown in Fig. 9b, there is only one 2p 3/2 peak located at 711.5 eV on fresh Fe foil, which can be ascribed to Fe 3+ [58,59]. Another two peaks can be observed after Ar + sputtering, and the intensity will increase with sputtering time due to surface cleaning.…”

Catalytic decomposition of phenethyl phenyl ether to aromatics over Pd–Fe bimetallic catalysts supported on ordered mesoporous carbon

“…The bimetallic systems can change the structural and electronic properties of noble metal catalysts, which induces a desired reaction pathway selectively [16][17][18]. For example, several bimetallic catalysts containing oxophilic metals such as Sn, Re, and Fe remarkably changed the product selectivity due to the improved interaction with the oxygenated group [19][20][21][22]. Fig.…”

In-Situ Liquid Hydrogenation of m-Chloronitrobenzene over Fe-Modified Pt/Carbon Nanotubes Catalysts

“…H 2 -TPR profiles of catalyst precursors are shown in Figure 4. It is clear that Pt-in/CNTs and Pt-out/CNTs exhibit two similar peaks, where the low-temperature peak (467 and 481 K) is ascribed to the reduction of Pt 4+ that is loaded on CNTs [15], while the high-temperature peak (>600 K) can be related to the decomposition of functional groups on the surfaces of CNTs [16]. Compared with Pt-out/CNTs, the reduction peak temperature of the Pt precursor complex in the Pt-in/CNTs drops from 481 to 467 K, i.e., the Pt 4+ loaded inside the CNTs is more prone to reduction than the Pt 4+ loaded outside the CNTs, which can be ascribed to the confinement effect of CNTs [17,18].…”