Nano-Micro Letters最新文献

From Wave Energy to Electricity: Functional Design and Performance Analysis of Triboelectric Nanogenerators. 从波浪能到电能：摩擦纳米发电机的功能设计与性能分析。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-16 DOI: 10.1007/s40820-025-01811-3

Ying Lou,Mengfan Li,Aifang Yu,Junyi Zhai,Zhong Lin Wang

{"title":"From Wave Energy to Electricity: Functional Design and Performance Analysis of Triboelectric Nanogenerators.","authors":"Ying Lou,Mengfan Li,Aifang Yu,Junyi Zhai,Zhong Lin Wang","doi":"10.1007/s40820-025-01811-3","DOIUrl":"https://doi.org/10.1007/s40820-025-01811-3","url":null,"abstract":"Triboelectric nanogenerators (TENGs) offer a self-sustaining power solution for marine regions abundant in resources but constrained by energy availability. Since their pioneering use in wave energy harvesting in 2014, nearly a decade of advancements has yielded nearly thousands of research articles in this domain. Researchers have developed various TENG device structures with diverse functionalities to facilitate their commercial deployment. Nonetheless, there is a gap in comprehensive summaries and performance evaluations of TENG structural designs. This paper delineates six innovative structural designs, focusing on enhancing internal device output and adapting to external environments: high space utilization, hybrid generator, mechanical gain, broadband response, multi-directional operation, and hybrid energy-harvesting systems. We summarize the prevailing trends in device structure design identified by the research community. Furthermore, we conduct a meticulous comparison of the electrical performance of these devices under motorized, simulated wave, and real marine conditions, while also assessing their sustainability in terms of device durability and mechanical robustness. In conclusion, the paper outlines future research avenues and discusses the obstacles encountered in the TENG field. This review aims to offer valuable perspectives for ongoing research and to advance the progress and application of TENG technology.","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"6 1","pages":"298"},"PeriodicalIF":26.6,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144295925","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Understanding Electrolytes and Interface Chemistry for Sustainable Nonaqueous Metal-CO2 Batteries. 了解可持续非水金属- co2电池的电解质和界面化学。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-16 DOI: 10.1007/s40820-025-01801-5

Bijiao He,Yunnian Ge,Fang Zhang,Huajun Tian,Yan Xin,Yong Lei,Yang Yang

{"title":"Understanding Electrolytes and Interface Chemistry for Sustainable Nonaqueous Metal-CO2 Batteries.","authors":"Bijiao He,Yunnian Ge,Fang Zhang,Huajun Tian,Yan Xin,Yong Lei,Yang Yang","doi":"10.1007/s40820-025-01801-5","DOIUrl":"https://doi.org/10.1007/s40820-025-01801-5","url":null,"abstract":"Metal-carbon dioxide (CO2) batteries hold great promise for reducing greenhouse gas emissions and are regarded as one of the most promising energy storage techniques due to their efficiency advantages in CO2 recovery and conversion. Moreover, rechargeable nonaqueous metal-CO2 batteries have attracted much attention due to their high theoretical energy density. However, the stability issues of the electrode-electrolyte interfaces of nonaqueous metal-CO2 (lithium (Li)/sodium (Na)/potassium (K)-CO2) batteries have been troubling its development, and a large number of related research in the field of electrolytes have conducted in recent years. This review retraces the short but rapid research history of nonaqueous metal-CO2 batteries with a detailed electrochemical mechanism analysis. Then it focuses on the basic characteristics and design principles of electrolytes, summarizes the latest achievements of various types of electrolytes in a timely manner and deeply analyzes the construction strategies of stable electrode-electrolyte interfaces for metal-CO2 batteries. Finally, the key issues related to electrolytes and interface engineering are fully discussed and several potential directions for future research are proposed. This review enriches a comprehensive understanding of electrolytes and interface engineering toward the practical applications of next-generation metal-CO2 batteries.","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"20 1","pages":"299"},"PeriodicalIF":26.6,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144295924","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

A Strongly Coupled Cluster Heterostructure with Pt-N-Mo Bonding for Durable and Efficient H₂ Evolution in Anion-Exchange Membrane Water Electrolyzers. 具有Pt-N-Mo键的强耦合簇异质结构在阴离子交换膜水电解槽中持久高效析氢。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-13 DOI: 10.1007/s40820-025-01798-x

Wenbo Zhou, Yichao Huang, Hanqing Cai, Tao Wang, Haitao Li, Chao Zhang, Lianming Zhao, Lulu Chen, Meihong Liao, Zhiqing Tang, Kai Chen, Jing Gu, Wenpei Gao, Zhuangjun Fan, Zhenhai Wen

{"title":"A Strongly Coupled Cluster Heterostructure with Pt-N-Mo Bonding for Durable and Efficient H2 Evolution in Anion-Exchange Membrane Water Electrolyzers.","authors":"Wenbo Zhou, Yichao Huang, Hanqing Cai, Tao Wang, Haitao Li, Chao Zhang, Lianming Zhao, Lulu Chen, Meihong Liao, Zhiqing Tang, Kai Chen, Jing Gu, Wenpei Gao, Zhuangjun Fan, Zhenhai Wen","doi":"10.1007/s40820-025-01798-x","DOIUrl":"10.1007/s40820-025-01798-x","url":null,"abstract":"Creating strongly coupled heterostructures with favorable catalytic activities is crucial for promoting the performance of catalytic reactions, especially those involve multiple intermediates. Herein, we fabricated a strongly coupled platinum/molybdenum nitrides nanocluster heterostructure on nitrogen-doped reduced graphene oxide (Pt/Mo₂N-NrGO) for alkaline hydrogen evolution reaction. The well-defined Pt-containing Anderson-type polyoxometalates promote strong interfacial Pt-N-Mo bonding in Pt/Mo2N-NrGO, which exhibits a remarkably low overpotential, high mass activity, and exceptional long-term durability (> 500 h at 1500 mA cm⁻2) in an anion-exchange membrane water electrolyzer (AEMWE). Operando Raman spectroscopy and density functional theory reveal that pronounced electronic coupling at the Pt/Mo₂N cluster interface facilitates the catalytic decomposition of H2O through synergistic stabilization of intermediates (Pt-H* and Mo-OH*), thereby enhancing the kinetics of the rate-determining Volmer step. Techno-economic analysis indicates a levelized hydrogen production cost of $2.02 kg⁻1, meeting the US DOE targets. Our strategy presents a viable pathway to designing next-generation catalysts for industrial AEMWE for green hydrogen production.","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":"296"},"PeriodicalIF":26.6,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281939","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Hydrolysis-Engineered Robust Porous Micron Silicon Anode for High-Energy Lithium-Ion Batteries. 水解工程坚固的多孔微米硅阳极用于高能锂离子电池。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-13 DOI: 10.1007/s40820-025-01808-y

Mili Liu, Jiangwen Liu, Yunqi Jia, Chen Li, Anwei Zhang, Renzong Hu, Jun Liu, Chengyun Wang, Longtao Ma, Liuzhang Ouyang

{"title":"Hydrolysis-Engineered Robust Porous Micron Silicon Anode for High-Energy Lithium-Ion Batteries.","authors":"Mili Liu, Jiangwen Liu, Yunqi Jia, Chen Li, Anwei Zhang, Renzong Hu, Jun Liu, Chengyun Wang, Longtao Ma, Liuzhang Ouyang","doi":"10.1007/s40820-025-01808-y","DOIUrl":"10.1007/s40820-025-01808-y","url":null,"abstract":"Micro-silicon (Si) anode that features high theoretical capacity and fine tap density is ideal for energy-dense lithium-ion batteries. However, the substantial localized mechanical strain caused by the large volume expansion often results in electrode disintegration and capacity loss. Herein, a microporous Si anode with the SiOx/C layer functionalized all-surface and high tap density (~ 0.65 g cm⁻3) is developed by the hydrolysis-driven strategy that avoids the common use of corrosive etchants and toxic siloxane reagents. The functionalized inner pore with superior structural stability can effectively alleviate the volume change and enhance the electrolyte contact. Simultaneously, the outer particle surface forms a continuous network that prevents electrolyte parasitic decomposition, disperses the interface stress of Si matrix and facilitates electron/ion transport. As a result, the micron-sized Si anode shows only ~ 9.94 GPa average stress at full lithiation state and delivers an impressive capacity of 901.1 mAh g⁻1 after 500 cycles at 1 A g⁻1. It also performs excellent rate performance of 1123.0 mAh g⁻1 at 5 A g⁻1 and 850.4 at 8 A g⁻1, far exceeding most of reported literatures. Furthermore, when paired with a commercial LiNi0.8Co0.1Mn0.1O2, the pouch cell demonstrates high capacity and desirable cyclic performance.","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":"297"},"PeriodicalIF":26.6,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281942","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

An Efficient Deep Learning Framework for Revealing the Evolution of Characterization Methods in Nanoscience. 揭示纳米科学表征方法演变的高效深度学习框架。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-13 DOI: 10.1007/s40820-025-01807-z

Hui-Cong Duan, Long-Xing Lin, Ji-Chun Wang, Tong-Ruo Diao, Sheng-Jie Qiu, Bi-Jun Geng, Jia Shi, Shu Hu, Yang Yang

{"title":"An Efficient Deep Learning Framework for Revealing the Evolution of Characterization Methods in Nanoscience.","authors":"Hui-Cong Duan, Long-Xing Lin, Ji-Chun Wang, Tong-Ruo Diao, Sheng-Jie Qiu, Bi-Jun Geng, Jia Shi, Shu Hu, Yang Yang","doi":"10.1007/s40820-025-01807-z","DOIUrl":"10.1007/s40820-025-01807-z","url":null,"abstract":"Text mining has emerged as a powerful strategy for extracting domain knowledge structure from large amounts of text data. To date, most text mining methods are restricted to specific literature information, resulting in incomplete knowledge graphs. Here, we report a method that combines citation analysis with topic modeling to describe the hidden development patterns in the history of science. Leveraging this method, we construct a knowledge graph in the field of Raman spectroscopy. The traditional Latent DirichletAllocation model is chosen as the baseline model for comparison to validate the performance of our model. Our method improves the topic coherence with a minimum growth rate of 100% compared to the traditional text mining method. It outperforms the traditional text mining method on the diversity, and its growth rate ranges from 0 to 126%. The results show the effectiveness of rule-based tokenizer we designed in solving the word tokenizer problem caused by entity naming rules in the field of chemistry. It is versatile in revealing the distribution of topics, establishing the similarity and inheritance relationships, and identifying the important moments in the history of Raman spectroscopy. Our work provides a comprehensive tool for the science of science research and promises to offer new insights into the historical survey and development forecast of a research field.","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":"295"},"PeriodicalIF":26.6,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281940","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Engineering Bifunctional Catalytic Microenvironments for Durable and High-Energy-Density Metal-Air Batteries. 耐用高能量密度金属-空气电池的工程双功能催化微环境。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-13 DOI: 10.1007/s40820-025-01799-w

Jean Marie Vianney Nsanzimana, Lebin Cai, Zhongqing Jiang, Bao Yu Xia, Thandavarayan Maiyalagan

{"title":"Engineering Bifunctional Catalytic Microenvironments for Durable and High-Energy-Density Metal-Air Batteries.","authors":"Jean Marie Vianney Nsanzimana, Lebin Cai, Zhongqing Jiang, Bao Yu Xia, Thandavarayan Maiyalagan","doi":"10.1007/s40820-025-01799-w","DOIUrl":"10.1007/s40820-025-01799-w","url":null,"abstract":"Rechargeable metal-air batteries have gained significant interest due to their high energy density and environmental benignity. However, these batteries face significant challenges, particularly related to the air-breathing electrode, resulting in poor cycle life, low efficiency, and catalyst degradation. Developing a robust bifunctional electrocatalyst remains difficult, as oxygen electrocatalysis involves sluggish kinetics and follows different reaction pathways, often requiring distinct active sites. Consequently, the poorly understood mechanisms and irreversible surface reconstruction in the catalyst's microenvironment, such as atomic modulation, nano-/microscale, and surface interfaces, lead to accelerated degradation during charge and discharge cycles. Overcoming these barriers requires advancements in the development and understanding of bifunctional electrocatalysts. In this review, the critical components of metal-air batteries, the associated challenges, and the current engineering approaches to address these issues are discussed. Additionally, the mechanisms of oxygen electrocatalysis on the air electrodes are examined, along with insights into how chemical characteristics of materials influence these mechanisms. Furthermore, recent advances in bifunctional electrocatalysts are highlighted, with an emphasis on the synthesis strategies, microenvironmental modulations, and stabilized systems demonstrating efficient performance, particularly zinc- and lithium-air batteries. Finally, perspectives and future research directions are provided for designing efficient and durable bifunctional electrocatalysts for metal-air batteries.","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":"294"},"PeriodicalIF":26.6,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144281941","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In Situ Generated Sulfate-Facilitated Efficient Nitrate Electrosynthesis on 2D PdS₂ with Unique Imitating Growth Feature. 具有独特模拟生长特性的二维PdS2上原位生成硫酸盐促进硝酸盐的高效电合成。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-12 DOI: 10.1007/s40820-025-01803-3

Rui Zhang, Hui Mao, Ziyi Wang, Shengke Ma, Shuyao Wu, Qiong Wu, Daliang Liu, Hui Li, Yang Fu, Xiaoning Li, Tianyi Ma

{"title":"In Situ Generated Sulfate-Facilitated Efficient Nitrate Electrosynthesis on 2D PdS2 with Unique Imitating Growth Feature.","authors":"Rui Zhang, Hui Mao, Ziyi Wang, Shengke Ma, Shuyao Wu, Qiong Wu, Daliang Liu, Hui Li, Yang Fu, Xiaoning Li, Tianyi Ma","doi":"10.1007/s40820-025-01803-3","DOIUrl":"10.1007/s40820-025-01803-3","url":null,"abstract":"As a green sustainable alternative technology, synthesizing nitrate by electrocatalytic nitrogen oxidation reaction (NOR) can replace the traditional energy-intensive Ostwald process. But low nitrogen fixation yields and poor selectivity due to the high bond energy of the N≡N bond and competition from the oxygen evolution reaction in the electrolyte restrict its application. On the other hand, two-dimensional (2D) PdS2 as a member in the family of group-10 novel transition metal dichalcogenides (NTMDs) presents the interesting optical and electronic properties due to its novel folded pentagonal structure, but few researches involve to its fabrication and application. Herein, unique imitating growth feature for PdS2 on different 2D substrates has been firstly discovered for constructing 2D/2D heterostructures by interface engineering. Due to the different exposed chemical groups on the substrates, PdS2 grows as the imitation to the morphologies of the substrates and presents different thickness, size, shape and the degree of oxidation, resulting in the significant difference in the NOR activity and stability of the obtained composite catalysts. Especially, the thin and small PdS2 nanoplates with more defects can be obtained by decorating poly(1-vinyl-3-ethylimidazolium bromide) on the 2D substrate, easily oxidized during the preparation process, resulting in the in situ generation of SO42-, which plays a crucial role in reducing the activation energy of the NOR process, leading to improved efficiency for nitrate production, verified by theoretical calculation. This research provides valuable insights for the development of novel electrocatalysts based on NTMDs for NOR and highlights the importance of interface engineering in enhancing catalytic performance.","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":"289"},"PeriodicalIF":26.6,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12158905/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273916","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Correction: A Valuable and Low-Budget Process Scheme of Equivalized 1 nm Technology Node Based on 2D Materials. 修正：一种有价值且低成本的基于二维材料的等效1nm技术节点工艺方案。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-12 DOI: 10.1007/s40820-025-01747-8

Yang Shen, Zhejia Zhang, Zhujun Yao, Mengge Jin, Jintian Gao, Yuhan Zhao, Wenzhong Bao, Yabin Sun, He Tian

引用次数: 0

Regulating the Coordination Environment of H₂O in Hydrogel Electrolyte for a High-Environment-Adaptable and High-Stability Flexible Zn Devices. 调节水凝胶电解质中H2O的配位环境用于高环境适应性和高稳定性的柔性锌器件。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-12 DOI: 10.1007/s40820-025-01810-4

Jianghe Liu, Qianxi Dang, Jodie Yuwono, Shilin Zhang, Zhixin Tai, Zaiping Guo, Yajie Liu

{"title":"Regulating the Coordination Environment of H2O in Hydrogel Electrolyte for a High-Environment-Adaptable and High-Stability Flexible Zn Devices.","authors":"Jianghe Liu, Qianxi Dang, Jodie Yuwono, Shilin Zhang, Zhixin Tai, Zaiping Guo, Yajie Liu","doi":"10.1007/s40820-025-01810-4","DOIUrl":"10.1007/s40820-025-01810-4","url":null,"abstract":"Aqueous zinc-ion batteries are promising candidates as stationary storage systems for power-grid applications due to their high safety and low cost. The practical implementation of Zn-ion batteries currently still faces formidable challenges because of Zn dendrite growth, hydrogen evolution, and inadequate environmental adaptability. Herein, to address these challenges, a strategy of regulation of water molecules coordination in electrolyte is proposed via developing a cross-linked hydrophilic hydrogel polymer electrolyte. Within this system, the continuous hydrogen bond among H2O molecules is disrupted and the isolated H2O molecules are strongly bound with a polymeric matrix comprised of polyacrylamide, carboxymethyl cellulose, and ethylene glycol, which can restrain the activity of H2O molecules, thus effectively alleviating Zn dendrite growth and hydrogen evolution and enhancing the anti-freezing ability. With this electrolyte, the Zn||Cu cell presents a high coulombic efficiency of 99.4% over 900 cycles and Zn||Zn symmetric cell exhibits high cycling stability, maintaining plating/stripping for over 1,700 h. Moreover, the assembled Zn||PANI device also demonstrates outstanding electrochemical performance over a wide-temperature range, including a long cycling life over 14,120 cycles at room temperature and an ultralong cycling surpassing 30,000 cycles even at - 40 °C. This showcases the manipulation of water coordination chemistry for advanced, highly adaptable batteries.","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":"292"},"PeriodicalIF":26.6,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12162457/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273918","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Multifunctional Asymmetric Bilayer Aerogels for Highly Efficient Electromagnetic Interference Shielding with Ultrahigh Electromagnetic Wave Absorption. 多功能不对称双层气凝胶用于超高电磁波吸收的高效电磁干扰屏蔽。

IF 26.6 1区材料科学

Nano-Micro Letters Pub Date : 2025-06-12 DOI: 10.1007/s40820-025-01800-6

Cheng-Zhang Qi, Peng Min, Xinfeng Zhou, Meng Jin, Xia Sun, Jianjun Wu, Yanjun Liu, Hao-Bin Zhang, Zhong-Zhen Yu

{"title":"Multifunctional Asymmetric Bilayer Aerogels for Highly Efficient Electromagnetic Interference Shielding with Ultrahigh Electromagnetic Wave Absorption.","authors":"Cheng-Zhang Qi, Peng Min, Xinfeng Zhou, Meng Jin, Xia Sun, Jianjun Wu, Yanjun Liu, Hao-Bin Zhang, Zhong-Zhen Yu","doi":"10.1007/s40820-025-01800-6","DOIUrl":"10.1007/s40820-025-01800-6","url":null,"abstract":"Although multifunctional electromagnetic interference (EMI) shielding materials with ultrahigh electromagnetic wave absorption are highly required to solve increasingly serious electromagnetic radiation and pollution and meet multi-scenario applications, EMI shielding materials usually cause a lot of reflection and have a single function. To realize the broadband absorption-dominated EMI shielding via absorption-reflection-reabsorption mechanisms and the interference cancelation effect, multifunctional asymmetric bilayer aerogels are designed by sequential printing of a MXene-graphene oxide (MG) layer with a MG emulsion ink and a conductive MXene layer with a MXene ink and subsequent freeze-drying for generating and solidifying numerous pores in the aerogels. The top MG layer of the asymmetric bilayer aerogel optimizes impedance matching and achieves re-absorption, while the bottom MXene layer enhances the reflection of the incident electromagnetic waves. As a result, the asymmetric bilayer aerogel achieves an average absorption coefficient of 0.95 in the X-band and shows the tunable absorption ability to electromagnetic wave in the ultrawide band from 8.2 to 40 GHz. Finite element simulations substantiate the effectiveness of the asymmetric bilayer aerogel for electromagnetic wave absorption. The multifunctional bilayer aerogels exhibit hydrophobicity, thermal insulation and Joule heating capacities and are efficient in solar-thermal/electric heating, infrared stealth, and clean-up of spilled oil.","PeriodicalId":714,"journal":{"name":"Nano-Micro Letters","volume":"17 1","pages":"291"},"PeriodicalIF":26.6,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12162446/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144273917","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0