Nano Energy最新文献_第2页

Stretchable 3D Kirigami-structured Textiles for High-performance Wearable Energy Harvesting and Self-powered Sensing 用于高性能可穿戴能量收集和自供电传感的可拉伸3D kirigami结构纺织品

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-05-29 DOI: 10.1016/j.nanoen.2025.111196

Yitong Wang, Yuanyuan Gao, Di Tan, Fungchi Nip, Hong Fu, Bingang Xu

{"title":"Stretchable 3D Kirigami-structured Textiles for High-performance Wearable Energy Harvesting and Self-powered Sensing","authors":"Yitong Wang, Yuanyuan Gao, Di Tan, Fungchi Nip, Hong Fu, Bingang Xu","doi":"10.1016/j.nanoen.2025.111196","DOIUrl":"https://doi.org/10.1016/j.nanoen.2025.111196","url":null,"abstract":"Bio-mechanical energy from human motion is considered as one of the most ubiquitous, free, and sustainable resources, which has led to the development of wearable energy harvesting devices such as triboelectric nanogenerators (TENGs). However, generating excellent energy outputs while achieving high wearing comfort for wearable TENGs has long been a major challenge. In this study, we introduce a novel stretchable kirigami-structured textile-based triboelectric nanogenerator (SKS-TENG) that adopts a simple and economical kirigami approach. Owing to its special kirigami structure, the contact-separation efficiency of the surface is significantly improved, which can generate more charging output. The SKS-TENG has a unique repetitively stretchable structure and achieves amazing electrical performance with a power density of 3,380 mW m<sup>−2</sup>, which are several times higher than most existing textile-based TENGs. Even after twenty cycles of washing, it can still maintain stable electrical performance and has an impressive durability that can withstand more than 10,000 cycles. In addition, SKS-TENG is also assembled with clothing, which can power small electronic devices and light up 1,636 LEDs on clothing. The excellent power generation performance of SKS-TENG demonstrates its great potential for future development in human motion energy harvesting, wearable electronic devices and smart textile applications.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"71 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144177125","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

Bioinspired double-layer thermogalvanic cells with engineered ionic gradients for high-efficiency waste heat recovery 具有工程离子梯度的生物启发双层热电电池，用于高效废热回收

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-05-28 DOI: 10.1016/j.nanoen.2025.111189

Cheng Chi , Xingyu Zhang , Chen Shen , Qi Hu , Ze Liu , Jiahao Hu , Zhi Li , Yang Li , Xiaoli Yu , Hao Xiao , Zhaoquan Zhao , Yuan Yao , Xing Liang , Hongwei Wu , Xiaoze Du

{"title":"Bioinspired double-layer thermogalvanic cells with engineered ionic gradients for high-efficiency waste heat recovery","authors":"Cheng Chi , Xingyu Zhang , Chen Shen , Qi Hu , Ze Liu , Jiahao Hu , Zhi Li , Yang Li , Xiaoli Yu , Hao Xiao , Zhaoquan Zhao , Yuan Yao , Xing Liang , Hongwei Wu , Xiaoze Du","doi":"10.1016/j.nanoen.2025.111189","DOIUrl":"10.1016/j.nanoen.2025.111189","url":null,"abstract":"<div><div>Thermogalvanic cells (TGCs) have emerged as a promising technology for harvesting low-grade thermal energy, but their widespread application has been hindered by limited conversion efficiencies. A critical factor in enhancing TGC performance lies in establishing substantial ion concentration gradients, which remains challenging due to the inherent tendency of ion pairing. Here, we present a double-layer thermogalvanic cell (DTGC) architecture that spatially segregates redox pairs into two distinct gel layers, enabling unprecedented control over ion concentration gradients. This innovative design yields a single p-type gelatin-K<sub>4</sub>[Fe(CN)<sub>6</sub>]/K<sub>3</sub>[Fe(CN)<sub>6</sub>] DTGC unit with remarkable performance metrics of an open-circuit voltage of 220 mV, a power density of 1.73 mW m<sup>−2</sup> K<sup>−2</sup>, and a relative Carnot efficiency (<em>η</em><sub>r</sub>) of 1.34 % at ΔT = 10 K, representing a tenfold improvement over conventional TGCs. Scaling up this technology, we demonstrate a modular thermoelectric generator comprising a 4 × 12 array of alternating p-type and n-type DTGCs, capable of delivering an output voltage exceeding 11.3 V at ΔT = 20 K, sufficient to directly power commercial LED lights and electronic displays. This work establishes a new paradigm for efficient low-grade thermal energy conversion, offering a scalable and practical solution for waste heat recovery applications.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"142 ","pages":"Article 111189"},"PeriodicalIF":16.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153975","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

Structure engineering of ultrathick-electrode enables high areal capacitance and exceptional flexibility of micro-supercapacitors 超厚电极的结构工程使微型超级电容器具有较高的面电容和优异的柔性

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-05-28 DOI: 10.1016/j.nanoen.2025.111194

Yin Wu , Xiaoyu Shi , Zhihao Ren , Longlong Zhang , Zhuobin Guo , Tiesheng Bai , Yuan Ma , Yixian Wang , Jiaxin Ma , Feng Zhou , Hao Tang , Zhigang Zhang , Zhong-Shuai Wu

{"title":"Structure engineering of ultrathick-electrode enables high areal capacitance and exceptional flexibility of micro-supercapacitors","authors":"Yin Wu , Xiaoyu Shi , Zhihao Ren , Longlong Zhang , Zhuobin Guo , Tiesheng Bai , Yuan Ma , Yixian Wang , Jiaxin Ma , Feng Zhou , Hao Tang , Zhigang Zhang , Zhong-Shuai Wu","doi":"10.1016/j.nanoen.2025.111194","DOIUrl":"10.1016/j.nanoen.2025.111194","url":null,"abstract":"<div><div>Designing thick electrode is of great importance to boost areal capacitance of micro-supercapacitors (MSCs) towards long-time operation of flexible microelectronics. However, conventional thick electrodes can’t fully achieve the trade-off between the high areal capacitance and exceptional flexibility. Herein, we report a general electrode structure engineering strategy, by combining 3D printed graphene-based thick electrodes and grooved array structure achieved by laser etching, simultaneously achieving high areal capacitance and exceptional flexibility of 3D-printed MSCs. Our 3D printed 7-layer MSCs with grooved array electrode (MSCs-7L-GAE), possessing a thickness of 580 μm, show excellent areal capacitance of 185.3 mF cm<sup>−2</sup>, energy density of 27.6 μWh cm<sup>−2</sup>, exceeding the counterpart with conventional thick electrode (157.7 mF cm<sup>−2</sup>, 25.0 μWh cm<sup>−2</sup>). Moreover, our MSCs-7L-GAE display significantly improved mechanical flexibility with almost constant capacitance during 5000 bending cycles. It is demonstrated experimentally and theoretically that the unique grooved array structure can effectively relieve local stress during the deformation process. Also, our devices exhibit excellent cyclability and integration uniformity, thereby holding great potential in wearable microelectronics.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"142 ","pages":"Article 111194"},"PeriodicalIF":16.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164890","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 jointless all-organic Ohmic junction thermoelectric generators 高性能无缝全有机欧姆结热电发电机

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-05-28 DOI: 10.1016/j.nanoen.2025.111188

Chan Zhang , Runfeng Xiao , Mengxing Wu , Tongxin Wu , Xi Liu , Feng Gan , Jing Zhao , Jinpeng Mo , Shangzhi Chen , Canyan Che , Guangming Chen , Reverant Crispin , Chaoyang Kuang , Shaobo Han

{"title":"High-performance jointless all-organic Ohmic junction thermoelectric generators","authors":"Chan Zhang , Runfeng Xiao , Mengxing Wu , Tongxin Wu , Xi Liu , Feng Gan , Jing Zhao , Jinpeng Mo , Shangzhi Chen , Canyan Che , Guangming Chen , Reverant Crispin , Chaoyang Kuang , Shaobo Han","doi":"10.1016/j.nanoen.2025.111188","DOIUrl":"10.1016/j.nanoen.2025.111188","url":null,"abstract":"<div><div>Organic thermoelectric materials offer unique advantages for wearable electronics (WEDs) due to their flexibility and scalable production. Recent advancements in high-performance n-type materials highlight the potential for developing all-organic thermoelectric devices. This work developed continuous and flexible all-organic thermoelectric films based on p-type and n-type polymers, and carboxymethyl cellulose (CMC). By employing direct drop-coating of PEDOT:PSS-CMC (PHCM) and PBFDO-CMC (PBCM) suspensions, a stable two-dimensional vertical heterojunction was fabricated. The fabricated PHCM and PBCM films demonstrated high electrical conductivity, excellent flexibility, and exceptional mechanical stability. Interestingly, these films exhibit good electrical contact with each other, enabling the construction of thermoelectric modules with n- and p-legs without the need for metal interconnects. Remarkably, the device retained 99 % of its electrical performance after 10,000 bending cycles and demonstrated stability under water immersion for 72 hours. The strong mechanical bonding between the n-leg and p-leg, ensured by the intertwining of cellulose chains, is crucial for wearable applications that are typically subjected to mechanical stress. Finally, the absence of metal interconnects offers a more sustainable pathway for recycling of all-organic wearable thermoelectric generators. This work pioneers a sustainable pathway for flexible electronics, thus advancing wearable energy harvesting and temperature-sensing applications.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"142 ","pages":"Article 111188"},"PeriodicalIF":16.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153974","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

HfAlOx-based optical ferroelectric memristor with transparent electrode for RGB color image classification via physical reservoir 基于hfalox透明电极的RGB彩色图像物理存储分类光学铁电忆阻器

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-05-28 DOI: 10.1016/j.nanoen.2025.111190

Woohyun Park , Gimun Kim , Hyojeong Chae, Seungjun Lee, Sungjun Kim

{"title":"HfAlOx-based optical ferroelectric memristor with transparent electrode for RGB color image classification via physical reservoir","authors":"Woohyun Park , Gimun Kim , Hyojeong Chae, Seungjun Lee, Sungjun Kim","doi":"10.1016/j.nanoen.2025.111190","DOIUrl":"10.1016/j.nanoen.2025.111190","url":null,"abstract":"<div><div>The swift advancement of artificial intelligence is driving the increasing complexity of neuromorphic computing, presenting new challenges for conventional hardware. Significant progress has been achieved in advancing neuromorphic hardware through various memory devices. This study presents the development and characterization of an optical ferroelectric memristor (OFM) device for reservoir computing (RC) for more efficient data processing. We explore the electrical properties of OFM device using indium tin oxide (ITO) as the transparent top electrode and HfAlO<sub>x</sub> (HAO) as the ferroelectric layer. The maximum remnant polarization (2 P<sub>r</sub>) and tunneling electroresistance (TER) are achieved by the positive-up-negative-down (PUND) methods for synaptic memory operation. The synaptic and spike characteristics of the device was conducted by examining paired pulse facilitation (PPF) and its recognition capabilities using reservoir computing technology making it a promising candidate for artificial neural network applications. The device’s optical response, influenced by light-induced oxygen vacancy ionization, enabled short-term plasticity and synaptic weight modulation under light stimulation. Simulations of optical reservoir computing (ORC) using the Fruits-360 dataset highlight its capability to efficiently process both RGB and grayscale inputs. The classification accuracy for RGB inputs outperform grayscale inputs by approximately 10 % for datasets with distinct color characteristics, underscoring the advantage of color information in complicated neuromorphic tasks. These findings demonstrate the potential of the ITO/HAO/n<sup>+</sup> Si device for energy efficient and flexible neuromorphic platform.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"142 ","pages":"Article 111190"},"PeriodicalIF":16.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144153976","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

Improved flexible triboelectric nanogenerator based on 3D X-shaped fabric without spaced yarn for power supply and motion monitoring application 基于无间隙纱线的三维x形织物的改进柔性摩擦电纳米发电机，用于供电和运动监测

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-05-28 DOI: 10.1016/j.nanoen.2025.111192

Huihao Huang , Zhipeng Shi , Jiahao Shen , Yuan Gao , Xinghai Zhou , Yongfang Qian , Gang Wang , Wei Fan , Kai Dong , Lihua Lyu

{"title":"Improved flexible triboelectric nanogenerator based on 3D X-shaped fabric without spaced yarn for power supply and motion monitoring application","authors":"Huihao Huang , Zhipeng Shi , Jiahao Shen , Yuan Gao , Xinghai Zhou , Yongfang Qian , Gang Wang , Wei Fan , Kai Dong , Lihua Lyu","doi":"10.1016/j.nanoen.2025.111192","DOIUrl":"10.1016/j.nanoen.2025.111192","url":null,"abstract":"<div><div>The triboelectric nanogenerator (TENG) technology transforms mechanical energy into electrical energy, providing a novel solution to the power supply problem in smart textiles. However, traditional 3D spacer fabric TENGs face limitations such as inefficient charge transport and non-uniform electric field distribution due to the presence of spacer yarns. To address these issues, this study developed a novel three-dimensional woven X-shaped TENG (3D X-TENG) without spacer yarn. Through systematic structural optimization, nine configurations with varying interlayer widths and heights were fabricated. At an interlayer width and height of 2.5 × 1.2 cm, the 3D X-TENG achieved optimal electrical performance. Under an external force of 40 N at 1.5 Hz, it demonstrated a short-circuit current of 198.62 nA, an open-circuit voltage of 19.82 V, and a peak power density of 0.399 mW/m². Furthermore, the 3D X-TENG exhibited exceptional sensing performance, stability, and durability, maintaining consistent electrical output after 10,800 testing cycles and six weeks of indoor storage. By integrating flexible textile materials with TENG technology, this work overcame key limitations of traditional 3D spacer fabric TENGs, significantly enhancing electrical performance and paving the way for advanced applications of smart textiles in power supply and motion monitoring.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"142 ","pages":"Article 111192"},"PeriodicalIF":16.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164893","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

Glycol-glyme co-solvent electrolytes enable high-capacity and ultrastable VO2 cathodes in magnesium ion batteries 乙二醇-甘氨酸共溶剂电解质可实现镁离子电池中高容量和超稳定的VO2阴极

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-05-28 DOI: 10.1016/j.nanoen.2025.111191

Feiyang Chen , Qi Meng , Hui Wang , Jingya Yu , Renjie Li , Yuyang Yi , Yingkai Hua , Huijun Lin , Pengyan Jiang , Kang Cheung Chan , Zheng-Long Xu

{"title":"Glycol-glyme co-solvent electrolytes enable high-capacity and ultrastable VO2 cathodes in magnesium ion batteries","authors":"Feiyang Chen , Qi Meng , Hui Wang , Jingya Yu , Renjie Li , Yuyang Yi , Yingkai Hua , Huijun Lin , Pengyan Jiang , Kang Cheung Chan , Zheng-Long Xu","doi":"10.1016/j.nanoen.2025.111191","DOIUrl":"10.1016/j.nanoen.2025.111191","url":null,"abstract":"<div><div>Rechargeable magnesium batteries (RMBs) are regarded as cost-effective candidates for post-lithium-ion batteries. However, the development of RMBs is hindered by the lack of high-capacity cathodes due to the sluggish Mg<sup>2</sup><sup>+</sup> desolvation at cathode-electrolyte interface and the TFSI<sup>-</sup>-induced surface passivation in the regular Mg(TFSI)<sub>2</sub>/1,2-dimethoxyethane (DME) electrolyte. Herein, we introduced a hydroxyl-rich ethylene glycol (EG) solvent into the ether-based electrolyte to disrupt the unfavorable [Mg(DME)<sub>3</sub>]<sup>2+</sup> complexes and build hydrogen bond networks to faciliate Mg ion migration and suppress TFSI<sup>-</sup> decomposition simutaneously. Consequently, the co-solvent electrolyte demonstrates a high reversible capacity of 258 mAh g<sup>−1</sup> for VO<sub>2</sub> cathodes with an extremely low capacity degradation rate of 0.0078 % per cycle over 2000 cycles at 500 mAg<sup>−1</sup>, which rivals the state-of-the-art cathode performance in Mg ion batteries. Practical application of this new electrolyte is evidenced by the high capacities of above 160 mAh g<sup>−1</sup> over 50 cycles for the Mg//VO<sub>2</sub> full cells. This work sets a new frontier for effective electrolytes in RMBs with long life and high energy densities.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"142 ","pages":"Article 111191"},"PeriodicalIF":16.8,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144164892","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

All-interfaces lead leakage blocking and defect healing for perovskite solar cells 钙钛矿太阳能电池的全界面导联漏阻及缺陷修复

IF 17.6 1区材料科学

Nano Energy Pub Date : 2025-05-28 DOI: 10.1016/j.nanoen.2025.111195

Yusheng Cao, Lele Wu, Yuanyuan Zhao, Gege Zhang, Qiyao Guo, Jialong Duan, Jie Dou, Qiang Zhang, Yan Zhang, Chongwen Li, Qunwei Tang

引用次数: 0

Integrating machine learning with triboelectric nanogenerators: Optimizing electrode materials and doping strategies for intelligent energy harvesting 集成机器学习与摩擦电纳米发电机：优化电极材料和掺杂策略的智能能量收集

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-05-27 DOI: 10.1016/j.nanoen.2025.111131

Guanping Xu , Zirui Zhao , Zhong Lin Wang , Hai-Feng Li

{"title":"Integrating machine learning with triboelectric nanogenerators: Optimizing electrode materials and doping strategies for intelligent energy harvesting","authors":"Guanping Xu , Zirui Zhao , Zhong Lin Wang , Hai-Feng Li","doi":"10.1016/j.nanoen.2025.111131","DOIUrl":"10.1016/j.nanoen.2025.111131","url":null,"abstract":"<div><div>The integration of machine learning techniques with triboelectric nanogenerators (TENGs) offers a transformative pathway for optimizing energy harvesting technologies. In this study, we propose a comprehensive framework that utilizes graph neural networks to predict and enhance the performance of TENG electrode materials and doping strategies. By leveraging an extensive dataset of experimental and computational results, the model effectively classifies electrode materials, predicts optimal doping ratios, and establishes robust structure–property relationships. Key findings include a 65.7% increase in energy density for aluminum-doped PTFE and an 85.7% improvement for fluorine-doped PTFE, highlighting the critical influence of doping materials and their concentrations. The model further identifies PTFE as a highly effective negative electrode material, achieving a maximum energy density of 1.12 J/cm<span><math><msup><mrow></mrow><mrow><mn>2</mn></mrow></msup></math></span> with 7% silver (Ag) doping when copper (Cu) is used as the positive electrode. This data-driven approach not only accelerates material discovery but also significantly reduces experimental costs, providing novel insights into the fundamental factors influencing TENG performance. The proposed methodology establishes a robust platform for intelligent material design, advancing the development of sustainable energy technologies and self-powered systems.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"142 ","pages":"Article 111131"},"PeriodicalIF":16.8,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145877","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

Graphene oxide-incorporated PVA/sodium alginate composite hydrogel-based flexible and sensitive single-electrode TENGs for efficient energy harvesting and smart security applications 氧化石墨烯- PVA/海藻酸钠复合水凝胶基柔性敏感单电极TENGs，用于高效能量收集和智能安全应用

IF 16.8 1区材料科学

Nano Energy Pub Date : 2025-05-26 DOI: 10.1016/j.nanoen.2025.111184

Punnarao Manchi, Mandar Vasant Paranjape, Anand Kurakula, Venkata Siva Kavarthapu, Chang-Woo Kim, Jae Su Yu

{"title":"Graphene oxide-incorporated PVA/sodium alginate composite hydrogel-based flexible and sensitive single-electrode TENGs for efficient energy harvesting and smart security applications","authors":"Punnarao Manchi, Mandar Vasant Paranjape, Anand Kurakula, Venkata Siva Kavarthapu, Chang-Woo Kim, Jae Su Yu","doi":"10.1016/j.nanoen.2025.111184","DOIUrl":"10.1016/j.nanoen.2025.111184","url":null,"abstract":"<div><div>Conductive hydrogels have attracted significant attention in the field of flexible and wearable electronics owing to their exceptional flexibility, electrical conductivity, and mechanical properties. However, balancing among mechanical strength, flexibility, and electrical output in conductive hydrogels remains a challenging task. In this study, we develop a flexible and sensitive single-electrode triboelectric nanogenerator (SE-TENG) using graphene oxide (GO)-incorporated poly(vinyl alcohol)/sodium alginate conductive composite hydrogels (PVA/SA@GO CCHs), which are subsequently soaked in an ionic solution. The effects of SA and GO concentrations on the electrical output performance of the SE-TENG are systematically investigated. Additionally, the electrical conductivities, mechanical properties, and electrical output performances of the SE-TENG are evaluated. An optimized PVA/SA@GO-3 (0.75 wt% GO) CCH-based SE-TENG demonstrates superior electrical output performance, with output voltage, current, charge density, and power density values of ∼ 495 V, ∼ 22 μA, ∼ 125 μC/m², and ∼ 4.2 W/m², respectively. The robustness of the SE-TENG is further investigated under different environmental conditions, which indicates its exceptional mechanical properties, stable electrical output, and potential for wide applications. The SE-TENG is successfully demonstrated as a touch sensor that can harvest mechanical energy from human body movements as well as for powering portable electronic devices. Finally, the proposed keypad SE-TENG array is integrated with an Arduino microcontroller unit for real-time smart security sensing systems. The PVA/SA@GO CCH-based SE-TENG harvests biomechanical energy to power portable electronics and is employed as a self-powered sensor for smart home/bank locker security alert applications.</div></div>","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"142 ","pages":"Article 111184"},"PeriodicalIF":16.8,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144145602","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