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- W4304687767 abstract "Morphology-controlled Pt-based catalysts were synthesized by a solvothermal method and were used as oxygen reduction reaction (ORR) catalysts in proton exchange membrane fuel cells (PEMFCs). A mild acid treatment combined with electrochemical de-alloying was used to develop Pt-skinned octahedral PtCu/C-X catalysts. PtCu/C exhibited a mass activity (MA) of 0.694 A mgPt−1 @ 0.9 V and specific activity (SA) of 2.242 mA cm−2, respectively. After 30,000 potential cycles, the MA and SA of this catalyst were enhanced by 22% to 0.849 A mgPt−1 and 110% to 4.697 mA cm−2, respectively. It is hypothesized that the rearrangement of surface Pt atoms in electrochemical de-alloying effectively filled the defects formed by acid treatment and enhanced the activity of the catalyst accordingly." @default.
- W4304687767 created "2022-10-12" @default.
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- W4304687767 date "2023-01-01" @default.
- W4304687767 modified "2023-09-23" @default.
- W4304687767 title "Highly stable and active Pt-skinned octahedral PtCu/C for oxygen reduction reaction" @default.
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- W4304687767 doi "https://doi.org/10.1016/j.colsurfa.2022.130341" @default.
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