Volume 32, Issue 7 (2026)
Review
Dynamic Reconstruction Engineering of Anti-Corrosion Ni-based Anodes for Alkaline Seawater Electrolysis
Yi-Gang Zhang, Wen-Wen Xu, Tian-Yu Zhang, and Zhi-Yi Lu
Articles
Preparation and Performance Study of In-Situ Self-Assembled Biphasic SmMn2O5-NiMn2O4 Composite Cathode
Neng-Chu Xia, Yu Zhou, Qin Wang, Jia-You Zhang, Chun Yu, Yang Zhang, Wan-Bing Guan, and Jian-Xin Wang
In-situ STM Visualization of Molecular Structural Evolution during Electrochemical Oxidation Coupling of Para-Aminothiophenol on Au(111)
Zi-Wei Ma, Tai-Rui Wu, An-Ni Zheng, Lai-Ke Chen, Yuan-Hui Xiao, Zhao-Bin Chen, Qing-Na Zheng, Jian-Zhang Zhou, Jia-Wei Yan, and De-Yin Wu
About the Cover
The mullite structure exhibits significant application value as an SOFC cathode material due to its low thermal expansion coefficient and absence of alkaline earth elements, eliminating the need for an additional blocking layer. However, its catalytic activity remains to be further improved. In this study, a SmMn2O5-NiMn2O4 composite cathode with a mullite-spinel structure was synthesized via a solid-liquid composite method through self-assembly. The synergistic effect between the two phases overcame the performance bottleneck of single-phase materials. The composite cathode prepared with an equimolar ratio enabled the single cell to achieve a peak power density of 1069.82 mW·cm–2 at 800 °C, which is 3.24 times that of the pure SmMn2O5 cathode. Furthermore, under galvanostatic discharge testing at 750°C and 540 mW·cm–2 for 150 h, the voltage degradation rate was approximately 5.62%/kh. These results demonstrate that the self-assembled SmMn2O5-NiMn2O4 composite cathode possesses both excellent electrochemical performance and good stability, rendering it a highly promising cathode material for intermediate-temperature SOFCs. View the Article.
