Enhanced steam electrolysis with exsolved iron nanoparticles in perovskite cathode

Yang, Xu; Huang, Lingwei; Zhang, Youkai; Gan, Lizhen

doi:10.1016/j.ijhydene.2022.05.205

Cited by 5 publications

(1 citation statement)

References 61 publications

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“…However, the gradually increased proportion of the particles with larger size indicated the coarsening tendency of exsolved Ni nanoparticles, and the perovskite cathodes with in situ metal exsolution might suffer from severe performance degradation when the nanoparticles were completely exsolved from the lattice during long-term operation. Since previously reported stability tests of the SOECs with perovskite cathodes adopting in situ metal exsolution were majorly limited to 1000 h, − above-discussed degradation mechanisms and corresponding mitigation strategies during further prolonged lifetime need to be confirmed and analyzed.…”

Section: Solid Oxide Electrolysis Cells (Soecs)mentioning

confidence: 99%

Water Electrolysis toward Elevated Temperature: Advances, Challenges and Frontiers

Zhang

Liu

et al. 2023

Chem. Rev.

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Since severe global warming and related climate issues have been caused by the extensive utilization of fossil fuels, the vigorous development of renewable resources is needed, and transformation into stable chemical energy is required to overcome the detriment of their fluctuations as energy sources. As an environmentally friendly and efficient energy carrier, hydrogen can be employed in various industries and produced directly by renewable energy (called green hydrogen). Nevertheless, large-scale green hydrogen production by water electrolysis is prohibited by its uncompetitive cost caused by a high specific energy demand and electricity expenses, which can be overcome by enhancing the corresponding thermodynamics and kinetics at elevated working temperatures. In the present review, the effects of temperature variation are primarily introduced from the perspective of electrolysis cells. Following an increasing order of working temperature, multidimensional evaluations considering materials and structures, performance, degradation mechanisms and mitigation strategies as well as electrolysis in stacks and systems are presented based on elevated temperature alkaline electrolysis cells and polymer electrolyte membrane electrolysis cells (ET-AECs and ET-PEMECs), elevated temperature ionic conductors (ET-ICs), protonic ceramic electrolysis cells (PCECs) and solid oxide electrolysis cells (SOECs).

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