Low-temperature synthesis of PdO-CeO2/C toward efficient oxygen reduction reaction

Surface oxygenation induced strong interaction between Pd catalyst and functional support for zinc–air batteries

“…All voltages mentioned below were referred to the 4b). 54 Only the Pd-O reduction peak (0.70 V) was observed in the N 2 -saturated electrolyte, confirming an apparent Pd-O reduction and surface oxygenation on the catalyst. Note that the current density of the Pd-O reduction peak in CV curves for PdNiMnO-PF is significantly higher than that for PdNiO-PF and PdNiMn metal porous film (PdNiMn-MPF, Fig.…”

Interface Engineering Between Multi‐Elemental Alloy Nanoparticles and a Carbon Support Toward Stable Catalysts

“…[27] The close interfacial binding and complex hierarchical structure of MEA-oxide-carbon is difficult to achieve using conventional wet chemistry or thermal reduction methods featuring low synthesis temperature (<600 K). [28][29][30][31] Note that the formation of MEA generally requires high temperature due to drastically physicochemical differences for each element. In comparison, our approach realizes the stable configuration of MEA-oxidecarbon as promising catalysts in a rapid and scalable manner.…”

Rare earth oxide based electrocatalysts: synthesis, properties and applications

“…Unlike the previous chemical oxidation of Pd to PdO at 500 °C, Pd is electrochemically oxidized to PdO in pairs with CeO 2 /CeO 2− x at 250 °C. 198 Compared with commercial Pt/C, PdO–CeO 2 /C exhibits excellent ORR activity in alkaline media, with a significant mass activity of 1103 mA mg Pd −1 (relative to reversible hydrogen electrodes at 0.9 V), which is 5.9 times higher than commercial Pt/C. DFT shows that the high ORR activity may be due to the appropriate oxygen adsorption strength at the PdO–CeO 2 interface.…”