An iron-base oxygen-evolution electrode for high-temperature electrolyzers.
An iron-base oxygen-evolution electrode for high-temperature electrolyzers.
复制标题
高温电解槽用铁基析氧电极
DOI：
10.1038/s41467-023-35904-7
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发表时间：
2023-01-17
影响因子：
16.6
通讯作者：
Wang, Dihua
中科院分区：
文献类型：
--
作者：
Du, Kaifa;Gao, Enlai;Zhang, Chunbo;Ma, Yongsong;Wang, Peilin;Yu, Rui;Li, Wenmiao;Zheng, Kaiyuan;Cheng, Xinhua;Tang, Diyong;Deng, Bowen;Yin, Huayi;Wang, Dihua
High-temperature molten-salt electrolyzers play a central role in metals, materials and chemicals production for their merit of favorable kinetics. However, a low-cost, long-lasting, and efficient high-temperature oxygen evolution reaction (HT-OER) electrode remains a big challenge. Here we report an iron-base electrode with an in situ formed lithium ferrite scale that provides enhanced stability and catalytic activity in both high-temperature molten carbonate and chloride salts. The finding is stemmed from a discovery of the ionic potential-stability relationship and a basicity modulation principle of oxide films in molten salt. Using the iron-base electrode, we build a kiloampere-scale molten carbonate electrolyzer to efficiently convert CO2 to carbon and oxygen. More broadly, the design principles lay the foundations for exploring cheap, Earth-abundant, and long-lasting HT-OER electrodes for electrochemical devices with molten carbonate and chloride electrolytes. A low-cost and efficient high-temperature oxygen evolution reaction electrode is a big challenge. Here, the authors report an iron-base electrode with an in situ formed lithium ferrite for enhanced stability and catalytic activity in molten carbonate and chloride salts and achieve kiloampere-scale electrolysis.
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影响因子：
7.2
作者：
Barelli, Linda;Bidini, Gianni;Milewski, Jaroslaw
通讯作者：
Milewski, Jaroslaw
影响因子：
8.3
作者：
Cheng, Xinhua;Yin, Huayi;Wang, Dihua
通讯作者：
Wang, Dihua
影响因子：
16.6
作者：
Shimada, Hiroyuki;Yamaguchi, Toshiaki;Fujishiro, Yoshinobu
通讯作者：
Fujishiro, Yoshinobu
影响因子：
2.8
作者：
Sousa, Osmar M.;Araujo, Raiane S.;Freitas, Sabrina M.
通讯作者：
Freitas, Sabrina M.
影响因子：
3.7
作者：
Kresse, G;Furthmuller, J
通讯作者：
Furthmuller, J