New advances in high-temperature CO2 electrolysis released by Da Hua Institute

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New Advances in High-Temperature CO2 Electrolysis Published by Dahuahua Author/Source: Sinochem News Network Date: 2019-07-22 Clicks: 24 This team has been focusing on research in high-temperature CO2 electrolysis; by creating a series of metal-oxide interface structures and generating numerous oxygen vacancies, they have enhanced the adsorption and activation of CO2 at the cathode as well as the oxygen evolution reaction at the anode, thereby improving the performance of CO2 electrolysis. 　　This progress report covers the development history of solid oxide electrolysis cells (SOECs), the mechanism of CO2 electrolysis, as well as the electrode and electrolyte materials used in SOECs. It explores the influence of electrode composition and microstructure on the performance of CO2 electrolysis; it summarizes the degradation mechanisms of SOECs, as well as the development status of fuel-assisted SOECs and high-pressure SOECs. The report also looks ahead to the use of in-situ dynamic characterization techniques to study electrode reaction mechanisms, thereby providing guidance for the development of high-performance electrode materials, and to achieving efficient production of fuels and chemicals through anode-coupled alkane conversion. 　　Solid oxide electrolyzers can convert CO2 and H2O into syngas and hydrocarbon fuels, while simultaneously producing high-purity O2. They feature a fully solid-state, modular structure, as well as advantages such as fast reaction rates, high energy efficiency, and low costs, making them highly promising for applications in CO2 conversion and the storage of renewable clean electricity.