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- W4295698346 abstract "In this work, we synthesized MnO 2 /CeO 2 electrocatalysts by in situ decoration of α –MnO 2 with CeO 2 particles during a one-step hydrothermal process. The morphology, composition, and electrochemical properties were studied in the context of application to the oxygen reduction reaction (ORR) and Mg-air battery. According to the results, α –MnO 2 /CeO 2 microfibres exhibited better ORR performance than α –MnO 2 microfibres due to the synergistic result between the introduction of Ce 3+ in CeO 2 lattice and the enhancement of Mn 3+ content in MnO 2 lattice. α –MnO 2 /CeO 2 microfibres provided a higher surface area and more catalytic active sites than α –MnO 2 microfibres by controlling the molar ratio of Ce 3+ /Mn 7+ for the precursor. When the mole ratio of Ce 3+ and Mn 7+ in the precursors was 10%, the four-electron transfer process of the MnO 2 /CeO 2 microfibres (MC-140-12-10) was found to be similar to that of the 20 wt% Pt/C commercial catalysts. MC-140-12-10 microfibres also showed the excellent long-term stability after 25,000 s and superior Mg–air battery performances than α –MnO 2 . Hence, the work paves the way for developing Mg-air batteries through a simple synthesis and cost-effective ORR catalyst." @default.
- W4295698346 created "2022-09-14" @default.
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- W4295698346 date "2022-09-01" @default.
- W4295698346 modified "2023-09-29" @default.
- W4295698346 title "Facile One-Pot Synthesis of α–MnO<sub>2</sub>/CeO<sub>2</sub> Nanowires for Mg-Air Batteries" @default.
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- W4295698346 doi "https://doi.org/10.1149/1945-7111/ac8edb" @default.
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