Nano Energy最新文献_第5页

Dual-modal hydrogels with synergistically enhanced mechanical-thermoelectric performance for intelligent wearable sensing and automotive temperature feedback systems 具有协同增强机械热电性能的双模态水凝胶用于智能可穿戴传感和汽车温度反馈系统

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-21 DOI: 10.1016/j.nanoen.2025.111057

Xiaoyu Yang , Peng Wang , Xuze Tang , Zinan Wang , Jihao Ye , Wei Duan , Ying Yue , Tiejun Ci , Yunpeng Liu , Yang Ju

{"title":"Dual-modal hydrogels with synergistically enhanced mechanical-thermoelectric performance for intelligent wearable sensing and automotive temperature feedback systems","authors":"Xiaoyu Yang , Peng Wang , Xuze Tang , Zinan Wang , Jihao Ye , Wei Duan , Ying Yue , Tiejun Ci , Yunpeng Liu , Yang Ju","doi":"10.1016/j.nanoen.2025.111057","DOIUrl":"10.1016/j.nanoen.2025.111057","url":null,"abstract":"<div><div>The advancement of flexible quasi-solid-state thermoelectric cells (TECs) presents new possibilities for wearable electronics. However, challenges such as mechanical strength, temperature sensitivity, and limited power output hinder broader applications. This study proposes a dual strategy to enhance both mechanical properties and thermoelectrochemical performance of TECs using [Fe(CN)<sub>6</sub>]<sup>3–/4–</sup>. By leveraging the Hofmeister effect and non-covalent interactions, the mechanical strength of NIPAM hydrogel electrolytes was increased from 4.86 kPa to 38.9 kPa through the addition of [2-(methacryloxy)ethyl]dimethyl-(3-sulfonatopropyl)ammonium hydroxide (MEMSA) and polar solvent DMF, achieving an extensibility of nearly 2500 %. Additionally, modifications with MEMSA hydroxide and guanidine hydrochloride improved the solvation structure of [Fe(CN)<sub>6</sub>]<sup>3–</sup>, resulting in an enhanced Seebeck coefficient from 0.72 to 5.632 mV K<sup>–1</sup>. The developed quasi-solid-state TECs demonstrated a power density of 0.624 mW m<sup>-</sup>²·K<sup>-</sup>², showing marked performance improvements. The material's properties, based on NIPAM and MEMSA, also support a wide operating temperature range. Furthermore, an intelligent remote-controlled car was designed featuring a temperature feedback system powered by deep learning algorithms, allowing for real-time monitoring and control, thus showcasing significant potential for future wearable electronic applications.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111057"},"PeriodicalIF":16.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853121","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

High-performance solid-liquid triboelectric nanogenerator enabled by dual physicochemical modification for wearable sensing 用于可穿戴传感的双物理化学改性高性能固液摩擦电纳米发电机

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-21 DOI: 10.1016/j.nanoen.2025.111061

Hao Fan , Zu’an Zeng , Chunyu Deng , Xinyu Chen , Zhixin Di , Wei Lan , Kaitong He , Peiran Lin , Yuli Luo , Wenlong Wang , Yadong Tang

{"title":"High-performance solid-liquid triboelectric nanogenerator enabled by dual physicochemical modification for wearable sensing","authors":"Hao Fan , Zu’an Zeng , Chunyu Deng , Xinyu Chen , Zhixin Di , Wei Lan , Kaitong He , Peiran Lin , Yuli Luo , Wenlong Wang , Yadong Tang","doi":"10.1016/j.nanoen.2025.111061","DOIUrl":"10.1016/j.nanoen.2025.111061","url":null,"abstract":"<div><div>Triboelectric nanogenerators (TENGs) are a promising solution for wearable sensors. Solid-liquid TENGs (SL-TENGs) outperform solid-solid TENGs in contact efficiency and environmental stability but face challenges like lower output power and wettability issues. This study presents a high-performance SL-TENG, termed MC-TENG, by combining a lotus leaf-inspired microstructure with alkalization treatment on solid triboelectric layers and utilizing liquid metal as both the triboelectric layer and electrode. This design enhances surface charge density, roughness, and wettability, achieving a record power density of 33.54 W/m² under small-scale, low-frequency operation. The MC-TENG exhibits high sensitivity (7.1 V/MPa), rapid response times (17 ms and 23 ms), and robust performance across varied conditions. Its versatile applications span Morse code signaling, human motion monitoring, and machine learning-enabled handwriting recognition. This work provides a novel and effective pathway for advancing SL-TENG performance, laying a foundation for its wider adoption in wearable sensing technologies.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111061"},"PeriodicalIF":16.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858187","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

Benefit of anchoring self-assembled monolayer as HTL for efficient anti-solvent-free perovskite solar cells 锚定自组装单层作为高效抗溶剂过氧化物太阳能电池的 HTL 的益处

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-21 DOI: 10.1016/j.nanoen.2025.111056

Bo Jiang , Peide Zhu , Zheng Liang , Wenbo Peng , Jie Zeng , Chen Wu , Xianghui Zeng , Fei Su , Deng Wang , Yuqi Bao , Chen Xie , Xu Pan , Yong Zhang , Xingzhu Wang , Baomin Xu

{"title":"Benefit of anchoring self-assembled monolayer as HTL for efficient anti-solvent-free perovskite solar cells","authors":"Bo Jiang , Peide Zhu , Zheng Liang , Wenbo Peng , Jie Zeng , Chen Wu , Xianghui Zeng , Fei Su , Deng Wang , Yuqi Bao , Chen Xie , Xu Pan , Yong Zhang , Xingzhu Wang , Baomin Xu","doi":"10.1016/j.nanoen.2025.111056","DOIUrl":"10.1016/j.nanoen.2025.111056","url":null,"abstract":"<div><div>Developing a facile method to fabricate high-quality perovskite films without employing anti-solvent techniques is crucial for the scalable production of perovskite solar cells (PSCs). However, fabricating formamidinium-based perovskite films without anti-solvent often results in films of inferior quality with high defect density, limiting the photovoltaic performance and long-term stability of derived PSCs. In this study, self-assembled monolayer (SAM) was employed as hole transport layers to promote the buried interface nucleation and growth of anti-solvent-free perovskite, which is particularly critical for such systems. We use the in-situ characterization techniques to in-depth understand the role of SAM binding in regulating nucleation and crystallization of perovskite precursors in anti-solvent-free systems. The resulting perovskite films exhibit stable crystal lattices and efficient charge carrier transfer. Consequently, the best-performing inverted structure devices achieve power conversion efficiencies of 25.60 % and 23.53 % on small-area (0.0736 cm<sup>2</sup>) and large-area (1.0 cm<sup>2</sup>) devices, respectively, which is among the highest efficiencies of anti-solvent-free PSCs.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111056"},"PeriodicalIF":16.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853120","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

Lubrication state monitoring of sliding bearing based on triboelectric Stribeck curve 基于摩擦电Stribeck曲线的滑动轴承润滑状态监测

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-21 DOI: 10.1016/j.nanoen.2025.111059

Zhiyuan Yang , Mang Gao , Shinya Imamura , Tomoyasu Shiroya , Jean-Jacques Delaunay , Junho Choi

{"title":"Lubrication state monitoring of sliding bearing based on triboelectric Stribeck curve","authors":"Zhiyuan Yang , Mang Gao , Shinya Imamura , Tomoyasu Shiroya , Jean-Jacques Delaunay , Junho Choi","doi":"10.1016/j.nanoen.2025.111059","DOIUrl":"10.1016/j.nanoen.2025.111059","url":null,"abstract":"<div><div>Maintaining an optimal lubrication state is essential for the efficient and safe operation of machinery. Classical tribology theory employs the Stribeck curve to describe lubrication states by measuring friction forces under varying loads and speeds, inevitably requiring external sensors to obtain the friction torque, which limits practical applications. In this study, we applied the triboelectric principle to a commercial sliding bearing to achieve self-powered lubrication state monitoring with minimal alterations to the original structure. Fluorine-doped diamond-like carbon (F-DLC) films were systematically studied for the first time and demonstrated to be promising electronegative materials with enhanced output and durability through optimal fluorine doping. The electrical current and coefficient of friction (COF) of the proposed triboelectric sliding bearing were tested simultaneously using a well-designed platform under different loads and rotational speeds with various lubricants, revealing opposite trends. Thus, the current signals can serve as a “triboelectric Stribeck curve” for monitoring the lubrication states. The mechanism underlying the output changes under different lubrication regimes was elucidated using the Debye length concept. This study interprets the Stribeck curve, a classic concept in tribology, from the triboelectric perspective. It not only holds great potential for application in self-powered and real-time lubrication state monitoring of mechanical systems but also plays an important guiding role in other fields of tribology, such as gear and bearing design, lubricant composition improvement, and engine structure optimization.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111059"},"PeriodicalIF":16.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858181","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

High-performance, self-powered photodetectors based on vertically stacked van der Waals heterostructures toward bifacial photovoltaics 面向双面光伏的垂直堆叠范德华异质结构的高性能自供电光电探测器

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-21 DOI: 10.1016/j.nanoen.2025.111062

Er-Xiong Ding , Anastasios Karakassides , Yaoqiang Zhou , Ruihuan Fang , Fida Ali , Esko I. Kauppinen , Zhipei Sun , Harri Lipsanen

{"title":"High-performance, self-powered photodetectors based on vertically stacked van der Waals heterostructures toward bifacial photovoltaics","authors":"Er-Xiong Ding , Anastasios Karakassides , Yaoqiang Zhou , Ruihuan Fang , Fida Ali , Esko I. Kauppinen , Zhipei Sun , Harri Lipsanen","doi":"10.1016/j.nanoen.2025.111062","DOIUrl":"10.1016/j.nanoen.2025.111062","url":null,"abstract":"<div><div>Self-powered photodetectors represent a transformative technology for next-generation wearable devices, particularly in environmental sensing and health monitoring applications. While significant progress has been made in this field, bifacial self-powered photodetectors utilizing vertically stacked van der Waals heterostructures remain largely unexplored. Here, we demonstrate an advancement in bifacial self-powered photodetectors through the innovative integration of a MoS<sub>2</sub>/WSe<sub>2</sub> heterostructure as the photosensitive medium with transparent indium tin oxide and single-walled carbon nanotube (SWCNT) film electrodes in a vertical architecture. These photodetectors exhibit exceptional photodetection capabilities, ultrafast response speeds, and remarkable stability. Operating in photovoltaic mode, the photodetector achieves a notable open-circuit voltage of 0.52 V and a power conversion efficiency of 3.89 %, positioning it among the top-performing 2D material-based photovoltaics reported to date. The exceptional bifacial functionality is evidenced by a near-unity bifacial factor of 98.5 %, demonstrating nearly equivalent power generation from both front and rear illumination. Furthermore, the photodetector delivers outstanding broadband photodetection performance across visible to near-infrared wavelengths, achieving a peak detectivity of 2.4 × 10<sup>9</sup> Jones under 840 nm laser illumination. This work not only establishes a scalable fabrication paradigm for wafer-scale flexible optoelectronics but also provides a fundamental framework for the development of advanced bifacial optoelectronics based on 2D materials.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111062"},"PeriodicalIF":16.8,"publicationDate":"2025-04-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143858228","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

AI-driven ocean monitoring with multimodal triboelectric nanogenerator: Self-sustainable real-time wave warning and forecasting system 人工智能驱动的多模态摩擦电纳米发电机海洋监测：自持续实时波浪预警和预报系统

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-20 DOI: 10.1016/j.nanoen.2025.111004

Xinhui Mao , Jiyuan Zhang , Longwei Duan , Boming Lyu , Yuxiang Dong , Feng Cao , Changzhen Jia , Long Liu , Honglong Chang , Zhongjie Li , Kai Tao

{"title":"AI-driven ocean monitoring with multimodal triboelectric nanogenerator: Self-sustainable real-time wave warning and forecasting system","authors":"Xinhui Mao , Jiyuan Zhang , Longwei Duan , Boming Lyu , Yuxiang Dong , Feng Cao , Changzhen Jia , Long Liu , Honglong Chang , Zhongjie Li , Kai Tao","doi":"10.1016/j.nanoen.2025.111004","DOIUrl":"10.1016/j.nanoen.2025.111004","url":null,"abstract":"<div><div>Conventional ocean monitoring systems utilizing single-mode triboelectric nanogenerators (TENGs) are fundamentally limited by their dependence on unimodal signal acquisition, which results in a critical lack of recognition accuracy and early warning reliability. To address this, we propose a highly integrated, multimodal self-powered AI-enhanced monitoring system (SAMS) for diverse ocean state monitoring. SAMS combines solid-solid and liquid-solid TENG modes, incorporating three distinct triboelectric conversion mechanisms. SAMS features a spherical framework with a freestanding-layer electret generator on its lower surface, detecting subtle wave vibrations through continuous liquid-solid contact. The upper surface features a double-electrode electret generator, enhanced via oxygen plasma treatment, which sensitively captures intermittent liquid-solid interactions (e.g., splashes and scours) under high-intensity waves, producing signals up to 80 V. Internally, a spiral electret generator with a dual-spiral structure generates in-plane and out-of-plane vibrations, delivering outputs of up to 100 V and significantly expanding detectable wave motion ranges. The triple-modal design of the SAMS enables simultaneous generation from three signal channels. Assisted by deep learning, the SAMS achieves a substantial improvement in wave level recognition accuracy, from 41.25 % (single-mode) to 96.25 % (triple-mode). This work advances multimodal TENGs for intelligent marine monitoring and enables real-time energy harvesting and state monitoring in complex marine environments.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111004"},"PeriodicalIF":16.8,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853250","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

Tuning the electronic environment of trace Pt through Quasi-solid microwave for boosted hydrogen evolution 准固体微波调控痕量铂的电子环境促进析氢

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-20 DOI: 10.1016/j.nanoen.2025.111050

Chengfeng Wang , Xiangrui Zhuge , Yusen Chen , Yingxia Zong , Weiping Xiao , Dehong Chen , Jinsong Wang , Tianyi Ma , Lei Wang , Zexing Wu

{"title":"Tuning the electronic environment of trace Pt through Quasi-solid microwave for boosted hydrogen evolution","authors":"Chengfeng Wang , Xiangrui Zhuge , Yusen Chen , Yingxia Zong , Weiping Xiao , Dehong Chen , Jinsong Wang , Tianyi Ma , Lei Wang , Zexing Wu","doi":"10.1016/j.nanoen.2025.111050","DOIUrl":"10.1016/j.nanoen.2025.111050","url":null,"abstract":"<div><div>The modulation of metal-support interactions (MSI) has emerged as promising strategy for tailoring the electronic structure and catalytic efficiency of supported catalysts. In this study, we employ an innovative ultrafast microwave synthesis technique to load platinum (Pt) and nickel (Ni) onto molybdenum boride (MoB) substrate (Pt-Ni/MoB). The introduced Ni facilitates rapid water dissociation, thereby optimizing the kinetics of the Volmer step and contributing to significantly improved hydrogen evolution reaction (HER) performance. The achieved Pt-Ni/MoB demonstrates exceptional electrocatalytic hydrogen evolution performance across wide pH electrolytes, including alkaline, acidic, and alkaline seawater media, with overpotentials of 37 mV, 13 mV, and 51 mV for 10 mA cm<sup>−2</sup>, respectively. Correspondingly, the Tafel slopes are determined to be 43 mV dec<sup>−1</sup>, 25 mV dec<sup>−1</sup>, and 57 mV dec<sup>−1</sup>. Specially, in alkaline environment, the mass activity (MA) of the Pt-Ni/MoB surpasses that of Pt/MoB by a factor exceeding five. Moreover, the synthesized Pt-Ni/MoB exhibits substantial promise for practical applications in electrocatalytic water-splitting processes, underscoring its potential significance in the realm of sustainable energy technologies. This work offers a strategic route for the precise design of non-carbon electrocatalysts with exceptional HER activity and long-term durability.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111050"},"PeriodicalIF":16.8,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853122","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

Hexagonal close-packed platinum–tin for efficient hydrogen production via aqueous phase reforming 通过水相重整高效制氢的六方密装铂锡

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-20 DOI: 10.1016/j.nanoen.2025.111052

Ankang Jia , Xing Fan , Xiaopeng Liu , Jiangdong Bai , Haiping Lin , Yecan Pi , Wei Deng , Shuxing Bai

{"title":"Hexagonal close-packed platinum–tin for efficient hydrogen production via aqueous phase reforming","authors":"Ankang Jia , Xing Fan , Xiaopeng Liu , Jiangdong Bai , Haiping Lin , Yecan Pi , Wei Deng , Shuxing Bai","doi":"10.1016/j.nanoen.2025.111052","DOIUrl":"10.1016/j.nanoen.2025.111052","url":null,"abstract":"<div><div>Aqueous phase reforming (APR) of alcohols is a promising on-site hydrogen (H<sub>2</sub>) production technique for mobile H<sub>2</sub> applications, yet the catalytic effectiveness of APR catalysts is insufficient for practical applications. Herein, hexagonal close-packed phase platinum–tin intermetallic compounds (PtSn/C<sub>3</sub>N<sub>4</sub>) were identified to exhibit extraordinary activity for APR of methanol (CH<sub>3</sub>OH) to H<sub>2</sub>, with a turnover frequency of 56,024 h<sup>−1</sup>. Furthermore, the H<sub>2</sub> productivity of PtSn/C<sub>3</sub>N<sub>4</sub> is 1.5 times that of Pt<sub>3</sub>Sn/C<sub>3</sub>N<sub>4</sub>. The nearly identical electron cloud density of surface Pt atoms and <em>d</em>-band center of PtSn/C<sub>3</sub>N<sub>4</sub> and Pt<sub>3</sub>Sn/C<sub>3</sub>N<sub>4</sub> demonstrate the negligible influence of electronic effects on performance. Mechanism researches indicate that the excellent APR activity of PtSn/C<sub>3</sub>N<sub>4</sub> is attributable to the geometric effect, where the shorter Pt–Sn bond length and lower Pt–Pt coordination numbers in comparison to Pt<sub>3</sub>Sn suppress the formation of H-bond between *CO and H<sub>2</sub>O* (*CO···H–OH*), weaken the co-adsorption of *CO and H<sub>2</sub>O* , and reduce the energy requirement (0.60 vs. 0.92 eV) to further form HCOO* as the limiting step for APR of CH<sub>3</sub>OH. This work not only provides efficient APR catalysts, but also advances basic research on the structure-activity relationship in catalysis.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111052"},"PeriodicalIF":16.8,"publicationDate":"2025-04-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143853739","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

Flexible and porous polyimide/carbon nanotube triboelectric nanogenerator for efficient electromagnetic dissipation 用于高效电磁消散的柔性多孔聚酰亚胺/碳纳米管三电纳米发电机

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-19 DOI: 10.1016/j.nanoen.2025.111036

Shuangshuang Li , Mingyang Zhu , Yanjun Zhang , Mingzhen Xu , Wei Li , Siyuan Yang , Yezi Lu , Xinwei Tang , Wei Hong , Kangqi Chang , Zicheng Wang , Tianxi Liu

{"title":"Flexible and porous polyimide/carbon nanotube triboelectric nanogenerator for efficient electromagnetic dissipation","authors":"Shuangshuang Li , Mingyang Zhu , Yanjun Zhang , Mingzhen Xu , Wei Li , Siyuan Yang , Yezi Lu , Xinwei Tang , Wei Hong , Kangqi Chang , Zicheng Wang , Tianxi Liu","doi":"10.1016/j.nanoen.2025.111036","DOIUrl":"10.1016/j.nanoen.2025.111036","url":null,"abstract":"<div><div>Nowadays, triboelectric nanogenerators have attracted considerable interest in a variety of applications. Nevertheless, it is still challenging to ascertain the impact of triboelectric generation on electromagnetic dissipation performance. Here, we report a compressible electromagnetic shielding single-electrode triboelectric nanogenerator (ES-TENG). It is composed of isocyanate-based polyimide/carbon nanotubes (PI/CNT) foam as positive electrodes and polytetrafluoroethylene (PTFE) as negative electrodes, respectively. The effective loading of carbon nanotubes facilitates the rational construction of conductive networks within PI/CNT foam, promoting the effective dissipation of incident electromagnetic waves. More importantly, the generated charge plays an essential role in interfacial polarization during triboelectric generation process, which enhances the electromagnetic shielding effectiveness from 17.2 dB to 26.5 dB in 12.4–18 GHz. The corresponding absorption (<em>A</em>) coefficient can be up to 0.9 in the most frequency of Ku and K bands. Such excellent electromagnetic characteristics make it possible for PI/CNT to exhibit a broad application prospect in the development of efficient absorption-dominated electromagnetic dissipation with sustainable energy harvesting.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"140 ","pages":"Article 111036"},"PeriodicalIF":16.8,"publicationDate":"2025-04-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143849653","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

Optimizing solvent properties to efficiently N-dope highly aligned wet-spun CNT fibers for advanced wearable thermoelectrics 优化溶剂性能，有效地n -掺杂高度排列的湿纺碳纳米管纤维用于先进的可穿戴热电

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-04-19 DOI: 10.1016/j.nanoen.2025.111054

Sung-Jun Kim, Yong Kim, Woong-Ryeol Yu

引用次数: 0