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- W3204607144 abstract "The use of La1−xSrxFeO3 (x= 0, 0.1, 0.2, 0.3, 0.4 and 0.5) cathodes in asymmetric electrocarboxylation of acetophenone with CO2 induced by chiral auxiliary CoII-(salen) was investigated for the first time. Optically active 2-hydroxy-2-phenylpropionic acid with 94% enantiomeric excess and 68% yield were obtained. The superior asymmetric electrocarboxylation performance may derive from the Fe4+ species and the increased lattice oxygen concentration on the surface of La0.7Sr0.3FeO3 (LSF-0.3) induced by Sr-doping, together with an accelerated electron transfer and an increased electrochemically active surface area. Here, perovskite oxide catalyst has an acid function, which is supplied by Fe4+ ions, can participate in the reaction by coordinating with acetophenone. Moreover, the LSF-0.3 has considerable stability and reusability. By cyclic voltammograms and contrast experiments, a mechanism was proposed for the asymmetric electrocarboxylation reaction." @default.
- W3204607144 created "2021-10-11" @default.
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- W3204607144 date "2021-12-01" @default.
- W3204607144 modified "2023-10-16" @default.
- W3204607144 title "La1−xSrxFeO3 perovskite electrocatalysts for asymmetric electrocarboxylation of acetophenone with CO2" @default.
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- W3204607144 doi "https://doi.org/10.1016/j.electacta.2021.139308" @default.
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