Nano-Micro Letters

364. Electronic Delocalization of Fe Atom–Cluster for Long-Term Stable Electromagnetic Wave Absorption in Marine Environments
Shaocong Zhong, Xinyu Wang, Rurong Zou, Chang Long, Pianpian Zhang*, Xueting Zhang, Zihao Zhao, Ying Liu, Can Cui, Yanan Yang* & Long Xia*
Nano-Micro Lett. 18, 364 (2026).
https://doi.org/10.1007/s40820-026-02210-y

This work is led by Prof. Dr. Long Xia (Harbin Institute of Technology) and co-workers. Prof. Xia’s research centers on negative expansion glass-ceramic materials, application research of carbon fiber reinforced ceramic matrix composites in thermal structures and wave-absorbing stealth. This work designs a synergistic electromagnetic wave absorber integrating Fe clusters and single atoms on a π‑conjugated carbon support, where long-range electronic interactions and multicenter coupling enable strong conduction and dipolar polarization, achieving a minimum reflection loss of −68.78 dB and a 6.00 GHz bandwidth at only 6 wt% loading. The Fe clusters thermodynamically adsorb Cl⁻ to protect the single‑atom sites from corrosion, while the absorber film also offers mechanical flexibility and thermal insulation, making it highly suitable for durable maritime stealth and electromagnetic protection under harsh marine conditions.

363. Hierarchically Architected 3D-Printed Hydrogel Evaporators Enable Synergistic Salt Management and Photocatalytic Purification
Xin Yang, Xinqi Guo, Yankuan Tian, Rong Zhou, Yifei Gong, Chengming Zhang, Feng Ji, Liu Liu, Faxue Li*, Ruiyun Zhang*, Jianyong Yu & Tingting Gao*
Nano-Micro Lett. 18, 363 (2026).
https://doi.org/10.1007/s40820-026-02206-8

This work is led by Associate Prof. Dr. Tingting Gao (Donghua University) and co-workers. Prof. Gao’s research centers on textile materials and textile design, structural design, controlled preparation, and performance study of functional textile materials, design and performance study of thermal management functional textiles. This work presents a multifunctional 3D-printed hydrogel evaporator with vertically aligned grid architectures and hierarchical porosity, integrating carbon black and the metal–organic framework PCN-224 to achieve dual photothermal–photocatalytic functionality. The design prevents salt crystallization and enables efficient broad-spectrum pollutant degradation, delivering a high water evaporation rate of 2.04 kg m⁻² h⁻¹ under one-sun illumination and degrading 96.5% of rhodamine B within 60 min, offering a synergistic strategy for simultaneous solar-driven water production and purification.

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