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- W3154453348 abstract "The design of active cathode catalysts, with abundant active sites and outstanding catalytic activity for CO2 electroreduction, is important to promote the development of solid oxide electrolysis cells (SOECs). Herein, A-site-deficient perovskite oxide (La0.2Sr0.8)0.9Ti0.5Mn0.4Cu0.1O3−δ (LSTMC) is synthesized and studied as a promising cathode for SOECs. Cu nanoparticles can be rapidly and uniformly in situ-exsolved under reducing conditions. The heterostructure formed by the exsoluted Cu and LSTMC provides abundant active sites for the catalytic conversion of CO2 to CO. Combined with the remarkable oxygen-ion transport capacity of the LSTMC substrate, the specially designed Cu@LSTMC cathode exhibits a dramatically improved electrochemical performance. Furthermore, first-principles calculations proposed a mechanism for the adsorption and activation of CO2 by the heterostructure. Electrochemically, the Cu@LSTMC presents a high current density of 2.82 A cm–2 at 1.8 V and 800 °C, which is about 2.5 times higher than that of LSTM (1.09A cm–2)." @default.
- W3154453348 created "2021-04-26" @default.
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- W3154453348 date "2021-04-22" @default.
- W3154453348 modified "2023-10-16" @default.
- W3154453348 title "Achieving Highly Efficient Carbon Dioxide Electrolysis by <i>In Situ</i> Construction of the Heterostructure" @default.
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- W3154453348 doi "https://doi.org/10.1021/acsami.1c02146" @default.
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