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Achieving High Efficiency 253 nm Micro-LED by Multiple Nano AlN Insertion Layers for Applications in Charge Management and Optical Communication
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-20 DOI: 10.1016/j.nanoen.2024.110613
Zhihao Zhang, Yuning Gu, Xuyang Liu, Yuandong Ruan, Daqi Shen, Xinyi Shan, Zuxin Jin, Xugao Cui, Ruiqian Guo, Shanduan Zhang, Pengfei Tian
{"title":"Achieving High Efficiency 253 nm Micro-LED by Multiple Nano AlN Insertion Layers for Applications in Charge Management and Optical Communication","authors":"Zhihao Zhang, Yuning Gu, Xuyang Liu, Yuandong Ruan, Daqi Shen, Xinyi Shan, Zuxin Jin, Xugao Cui, Ruiqian Guo, Shanduan Zhang, Pengfei Tian","doi":"10.1016/j.nanoen.2024.110613","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110613","url":null,"abstract":"Ultraviolet-C micro light-emitting diodes (UVC micro-LEDs) have attracted extensive attention across various fields, including optical communication, aerospace, phototherapy, and sensing. However, the external quantum efficiency (EQE) of UVC micro-LEDs remains suboptimal due to several challenges, such as the limitation of the substrate extraction cone, the lattice mismatch between the substrate and the epitaxial layers, and the sidewall damage. In this work, UVC micro-LEDs with high efficiency, high reliability, and high bandwidth are realized by adding AlN thin layers into the electron blocking layer (EBL), which leads to a record-breaking peak EQE of 3.55% and a peak wall plug efficiency (WPE) of 3.34% at 253<!-- --> <!-- -->nm. Subsequently, we investigate the degradation mechanism through accelerated aging tests and conduct charge management experiments specifically for the TianQin project. The 6545-h L<sub>70</sub> lifetime and the temperature cycle impact experiment further substantiate the high reliability of these UVC micro-LEDs. Additionally, the impressive -3 dB bandwidth of up to 485<!-- --> <!-- -->MHz and the data rate reaching 1.69<!-- --> <!-- -->Gbps highlight their potential in UVC communication applications. This research not only offers valuable insights for enhancing the performance of UVC micro-LEDs, but also underscores their significant potential in the field of charge management and UVC communication.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"55 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858037","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
Sustainable MgFe2O4/Ag2WO4 Nanocomposite for Enhanced Triboelectric Performance and Touch Sensing in Biodegradable PLA-Based TENG Device.
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-20 DOI: 10.1016/j.nanoen.2024.110611
Kariyappa Gowda Guddenahalli Shivanna, Vishnu Kadabahalli Thammannagowda, Smitha Ankanahalli Shankaregowda, Prashantha Kalappa
{"title":"Sustainable MgFe2O4/Ag2WO4 Nanocomposite for Enhanced Triboelectric Performance and Touch Sensing in Biodegradable PLA-Based TENG Device.","authors":"Kariyappa Gowda Guddenahalli Shivanna, Vishnu Kadabahalli Thammannagowda, Smitha Ankanahalli Shankaregowda, Prashantha Kalappa","doi":"10.1016/j.nanoen.2024.110611","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110611","url":null,"abstract":"The growing environmental concerns surrounding conventional batteries have driven the exploration of sustainable energy solutions, with triboelectric nanogenerators (TENGs) emerging as a promising alternative for converting mechanical energy into electrical energy. However, the widespread adoption of TENGs has been hindered by challenges such as low surface charge density and reduced durability of triboelectric materials. Addressing these issues, this study presents the synthesis of a sustainable MgFe<sub>2</sub>O<sub>4</sub>-Ag<sub>2</sub>WO<sub>4</sub> nanocomposite material, incorporated into a biodegradable polylactic acid (PLA) matrix to enhance TENG performance. MgFe<sub>2</sub>O<sub>4</sub>-Ag<sub>2</sub>WO<sub>4</sub> nanocomposites were synthesized using a simple combustion method followed by coprecipitation and characterized using X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM), and contact angle measurements, demonstrating excellent structural stability and compatibility with PLA. The resulting PLA nanocomposite films exhibited a maximum dielectric property of 7.3, significantly improving the surface charge density and energy conversion efficiency of the fabricated TENG. Electrical characterization revealed a maximum output voltage of 20.05<!-- --> <!-- -->V and a current of 1.99<!-- --> <!-- -->µA, with the device capable of powering an electronic calculator and illuminating 20 LEDs. Furthermore, the TENG device demonstrated effective energy harvesting during human walking and jumping and functioned as a touch sensor in a touch-sensing circuit, blinking an LED as a warning signal. This work provides a sustainable and innovative pathway for developing fully biodegradable, high-performance TENGs for energy harvesting and sensing applications, offering a green alternative for powering small electronics and sensors.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"97 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858035","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
Corrigendum to “Mechanical energy harvesting: From piezoelectric effect to ferroelectric/ferroelastic switching” [Nano Energy 133 (2025) 110489]
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-20 DOI: 10.1016/j.nanoen.2024.110599
Wenbin Kang, Guosheng Ji, John E. Huber
{"title":"Corrigendum to “Mechanical energy harvesting: From piezoelectric effect to ferroelectric/ferroelastic switching” [Nano Energy 133 (2025) 110489]","authors":"Wenbin Kang, Guosheng Ji, John E. Huber","doi":"10.1016/j.nanoen.2024.110599","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110599","url":null,"abstract":"The authors regret that the reference numbers in Figure 11 were incorrect and have been updated in the revised version.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"24 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858057","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 Tapered Rolling Bearing Based on Tribovoltaic Effect for Active Rotational Speed Sensing
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-19 DOI: 10.1016/j.nanoen.2024.110607
Wenbo Yu, Likun Gong, Weilin Zhou, Zhi Zhang, Chi Zhang, Yuanfen Chen
{"title":"A Tapered Rolling Bearing Based on Tribovoltaic Effect for Active Rotational Speed Sensing","authors":"Wenbo Yu, Likun Gong, Weilin Zhou, Zhi Zhang, Chi Zhang, Yuanfen Chen","doi":"10.1016/j.nanoen.2024.110607","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110607","url":null,"abstract":"The issue of status sensing in bearings is a fundamental and significant subject in development of smart manufacturing. The tribovoltaic effect is a newly proposed physical effect where direct current is generated at semiconductor interfaces by friction, which is expected to provide an effective solution for intelligent bearing sensing. Herein, we firstly present a rolling mode tribovoltaic nanogenerator (TVNG) based on a steel roller and a monocrystalline silicon ingot, which has a peak current density of 3.75<!-- --> <!-- -->A·m<sup>-2</sup> and an open-circuit voltage of 5.8<!-- --> <!-- -->mV. Based on the TVNG in freestanding-mode, a tribovoltaic bearing (TVB) was fabricated consisting of two different dopped silicon rings, bearing rollers and retaining frame. The Isc of TVB has a segmented linear relationship with the rotational speed (R<sup>2</sup>=0.9933 at 400-800<!-- --> <!-- -->rpm; R<sup>2</sup>=0.9867 at 800-1000<!-- --> <!-- -->rpm). Furthermore, the TVB and signal processing unit are encapsulated together as mechatronic smart bearing, which can realize accurate monitoring of rotational speed for overspeed alarming. This work achieves the integration of TVNGs and bearings in terms of structure and function, providing experimental and technical support for self-sensing in intelligent components and smart manufacturing.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"24 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142858036","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
Highly active and selective Ag/C catalysts for CO2 electrolysis to CO using 4-aminothiophenol as anchoring agent 使用 4-aminothiophenol 作为锚定剂的高活性和选择性 Ag/C 催化剂,用于将 CO2 电解为 CO
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-18 DOI: 10.1016/j.nanoen.2024.110597
Khaled Seteiz, Hannes Grammel, Josephine N. Häberlein, Philipp A. Heizmann, Lukas Metzler, Dennis Rusitov, Michael Günthel, Markus Knäbbeler-Bu, Severin Vierrat, Joey Disc
{"title":"Highly active and selective Ag/C catalysts for CO2 electrolysis to CO using 4-aminothiophenol as anchoring agent","authors":"Khaled Seteiz, Hannes Grammel, Josephine N. Häberlein, Philipp A. Heizmann, Lukas Metzler, Dennis Rusitov, Michael Günthel, Markus Knäbbeler-Bu, Severin Vierrat, Joey Disc","doi":"10.1016/j.nanoen.2024.110597","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110597","url":null,"abstract":"Carbon supported silver nanoparticles (Ag/C) have the potential to reduce the precious metal content in the catalyst layer of carbon dioxide (CO<sub>2</sub>) electrolyzers producing carbon monoxide (CO), while enhancing the electrochemical performance at the same time. Typically, molecular linkers (e.g. cysteamine) are used to attach the Ag nanoparticles (Ag NPs) to the carbon support. In this study, 4-aminothiophenol (4-ATP) is used for the first time as an alternative anchoring agent, yielding evenly dispersed Ag nanoparticles with an average particle size of 2<!-- --> <!-- -->nm. Using this linker a current density of 1<!-- --> <!-- -->A<!-- --> <!-- -->cm<sup>-2</sup> was achieved with faradaic efficiency for CO of 85% at 3.3<!-- --> <!-- -->V. These results were obtained with a low Ag loading of 0.26 mg<sub>Ag</sub> cm<sup>-2</sup>, yielding a turnover frequency of 9.6<!-- --> <!-- -->s<sup>-1</sup>. The catalyst demonstrated high stability during long-term measurements exceeding 200<!-- --> <!-- -->hours at 500<!-- --> <!-- -->mA<!-- --> <!-- -->cm<sup>-2</sup>. The faradaic efficiencies for CO remained consistently around 80% at 3.1<!-- --> <!-- -->V, with a cell voltage degradation rate of 1.5<!-- --> <!-- -->mV<!-- --> <!-- -->h<sup>-1</sup>. This makes thiol-based linkers promising candidates for surface modification to promote durable, efficient and selective electrocatalysts for CO<sub>2</sub> electrolysis to CO.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"30 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841546","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
Effect of ultraviolet irradiation on contact electrification at liquid-solid interface 紫外线照射对液固界面接触电化的影响
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-18 DOI: 10.1016/j.nanoen.2024.110608
Chu-Ting Cui, Kai-Zheng Liu, , Rong-Rong Cai, Li-Zhi Zhang
{"title":"Effect of ultraviolet irradiation on contact electrification at liquid-solid interface","authors":"Chu-Ting Cui, Kai-Zheng Liu, , Rong-Rong Cai, Li-Zhi Zhang","doi":"10.1016/j.nanoen.2024.110608","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110608","url":null,"abstract":"Liquid-solid triboelectric nanogenerator (L-S TENG) has demonstrated great potential in harvesting tiny mechanical energy from liquid. The saturated charge density of contact electrification (CE) at the liquid-solid interface is a key parameter to evaluate its performance. This study confirms that ultraviolet (UV) irradiation can enhance the saturated charge density of L-S CE, and the enhancement effect depends on the UV wavelength and intensity. The UV wavelengths that can further increase the saturated charge density of droplet -PTFE and droplet -FEP TENG are within 310-405<!-- --> <!-- -->nm and 275-405<!-- --> <!-- -->nm, respectively. In these wavelength ranges, high light intensity of UV irradiation favors L-S CE. The saturated charge density of FEP is up to -524 μC/m<sup>2</sup> under optimal irradiation conditions. A series of experiments are further conducted to explore the possible influences of UV irradiation on chemical change of solid surface, ionization of water, and so on. It is proposed that UV irradiation can excite electrons in water molecules to high-energy states and make them transfer to and be trapped by solid surface. Meanwhile, the electrons on the solid surface itself, as well as those that have been transferred to the solid surface, also can be excited under specific UV wavelength irradiation, resulting in charge dissipation at the L-S interface. Finally, the photo-excitation electron transfer theory is extended to quantitatively explain the influence mechanism of UV irradiation on L-S CE. This study not only contributes to further understanding of L-S CE, but also provide an effective technique to improve the performance of L-S TENG.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"259 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849022","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
Research progress in catalytic conversion of CO2 and epoxides based on ionic liquids to cyclic carbonates
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-18 DOI: 10.1016/j.nanoen.2024.110596
Heng Liu, X.L. Chang, Ting Yan, W.G. Pan
{"title":"Research progress in catalytic conversion of CO2 and epoxides based on ionic liquids to cyclic carbonates","authors":"Heng Liu, X.L. Chang, Ting Yan, W.G. Pan","doi":"10.1016/j.nanoen.2024.110596","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110596","url":null,"abstract":"CO<sub>2</sub> emissions have increasingly serious impacts on the environment. As CO<sub>2</sub> itself is a good C1 resource, developing scientific and reasonable CO<sub>2</sub> conversion and utilization routes become a common concern of the world. At present, the preparation of cyclic carbonate from CO<sub>2</sub> and epoxide is one of the most ideal conversion routes. Cyclic carbonate is not only the raw material of lithium battery production, but also widely used in medicine, chemical industry and other industries. Because of the stability of CO<sub>2</sub>, the catalytic conversion of CO<sub>2</sub> requires the participation of catalysts. Ionic liquids (ILs) as catalysts have the advantages of being designable and functional, and scientists have developed various types of ILs to catalyze the synthesis of cyclic carbonates from CO<sub>2</sub> to epoxides with very satisfactory results. This article provides a comprehensive review of the latest research developments in the field of ILs catalyzed conversion of CO<sub>2</sub> and epoxides to cyclic carbonates. It meticulously interprets the structure and chemical properties of CO<sub>2</sub> and ILs, thoroughly analyzes the reaction mechanisms, and offers profound insights into the challenges encountered in the current reaction processes. Additionally, the article systematically summarizes the synthesis strategies of ILs. Furthermore, it conducts a comprehensive retrospective on the research progress of CO<sub>2</sub> and epoxides catalyzed by ILs to synthesize cyclic carbonates and provides a perspective on the future development direction of ILs.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"59 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849018","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
Wireless Passive Sensor Design Based on a Highly Stable Triboelectric Nanogenerator for Centralized Command of Diverse Electrical Appliances
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-18 DOI: 10.1016/j.nanoen.2024.110598
Xinru Sun, Yonghui Wu, Zifa Wang, Feng Wang, Yiqiao Zhao, Xiaoyao Wang, Yunchen Zhang, Tianyong Ao, Fangqi Chen, Haiwu Zheng
{"title":"Wireless Passive Sensor Design Based on a Highly Stable Triboelectric Nanogenerator for Centralized Command of Diverse Electrical Appliances","authors":"Xinru Sun, Yonghui Wu, Zifa Wang, Feng Wang, Yiqiao Zhao, Xiaoyao Wang, Yunchen Zhang, Tianyong Ao, Fangqi Chen, Haiwu Zheng","doi":"10.1016/j.nanoen.2024.110598","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110598","url":null,"abstract":"The adoption of energy harvesting technology enables wireless sensor nodes to be self-powered, thereby significantly enhancing the deployment flexibility of wireless sensor networks (WSNs). While WSNs utilizing triboelectric nanogenerators (TENGs) are recognized for their immense potential, further development is required to ensure their suitability in real-world applications. In this study, we construct a wireless passive intelligent sensing system based on a highly stable TENG and an LC oscillator circuit, where the sensing information is modulated onto the transmitted signal frequency via fixed or variable capacitive modulation. The sensing system consists of three main components: self-powered signal transmitters, a receiving system integrating a single receiver with a signal processing module, and strong electrical applications. This configuration achieves three-layer physical isolation within the power system, thereby enhancing electrical safety. A self-charge-pumping TENG combined with a gas discharge tube switch is deployed to construct the self-powered signal transmitter, aiming to improve the system's output stability. Signals sent by different transmitters with varying frequencies are received and processed by the receiving system, allowing distinct switching operations and enabling centralized control over multiple electrical devices via a single receiving end. This sensing system holds significant potential for widespread applications in smart homes and the Internet of Things within modern commercial and industrial contexts.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"23 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142849019","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
Boosting the Luminescence Performance of Magneto-Mechano-Luminescence Devices by Leveraging Self-Generated Electric Potentials
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-17 DOI: 10.1016/j.nanoen.2024.110593
Ji Yun Jung, Hyun Soo Kim, Chang Min Baek, Seungah Lee, Yuho Min, Hyun-Cheol Song, Jungho Ryu
{"title":"Boosting the Luminescence Performance of Magneto-Mechano-Luminescence Devices by Leveraging Self-Generated Electric Potentials","authors":"Ji Yun Jung, Hyun Soo Kim, Chang Min Baek, Seungah Lee, Yuho Min, Hyun-Cheol Song, Jungho Ryu","doi":"10.1016/j.nanoen.2024.110593","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110593","url":null,"abstract":"The reported research on Mechano-luminescence (ML) has primarily focused on enhancing luminescence by optimizing mechanical energy for luminescence by employing various structural deformations of ML composites in response to mechanical stress. In contrast, this study demonstrates the innovative use of ambient magnetic fields to drive a lighting device without any external electrical source. This approach involves the simultaneous application of magnetically induced mechanical vibrations and a self-generated electric potential in the same periodic time. Our magnetically driven lighting device comprises a sheet-shaped ML composite consisting of ZnS:Cu particles embedded within a polydimethylsiloxane (PDMS) elastomer, along with a magnetically vibrating cantilever beam incorporating a 32-mode piezoelectric single crystal fiber composite (SFC). This structure forms a magneto-mechano-electric (MME) generator, capable of simultaneously applying mechanical stress and electrical potential to the ML composite under second harmonic bending vibration. Notably, the MME generator in second harmonic vibration mode responds to ambient magnetic field oscillations, inducing electric potential within the SFC. When the projection part of the MME generator contacts the ML composite, the induced electric potential supplies additional electrons to the ML material. This influx of electrons facilitates greater recombination within the ML composite, thereby enhancing luminescence efficiency. Our results indicate a 240% improvement in luminescence efficiency when both mechanical and electrical energies are applied simultaneously compared to when only mechanical energy is utilized. When tested in a real-world environment at 60<!-- --> <!-- -->Hz, the magnetically driven lighting device emits visible light without requiring any additional electrical power source.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"27 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841545","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
Doping of magnesium ions into polyaniline enables high-performance Zn-Mg alkaline batteries
IF 17.6 1区 材料科学
Nano Energy Pub Date : 2024-12-17 DOI: 10.1016/j.nanoen.2024.110586
Shengen Gong, Kaisheng Sun, Fang Yang, Shuangyu Wu, Yifan Wang, Runan Li, Xiaoteng Jia, Caiyun Wang, Danming Chao
{"title":"Doping of magnesium ions into polyaniline enables high-performance Zn-Mg alkaline batteries","authors":"Shengen Gong, Kaisheng Sun, Fang Yang, Shuangyu Wu, Yifan Wang, Runan Li, Xiaoteng Jia, Caiyun Wang, Danming Chao","doi":"10.1016/j.nanoen.2024.110586","DOIUrl":"https://doi.org/10.1016/j.nanoen.2024.110586","url":null,"abstract":"In contrast to the rapid development of zinc-based batteries with neutral electrolytes, rechargeable alkaline zinc batteries with higher theoretical capacity remain largely underexplored. Here, we report a novel high-performance rechargeable alkaline Zn-Mg battery utilizing an Mg-doped polyaniline cathode to facilitate reversible redox reactions. It leverages PANI's neutral doping mechanism to adsorb hydroxide anions, preventing the formation of insoluble magnesium hydroxide and facilitating efficient storage charge. This design allows the battery to retain 96.8% of its capacity after 5,000 cycles at a current density of 1.0<!-- --> <!-- -->A<!-- --> <!-- -->g<sup>-1</sup>, with coulombic efficiency above 99.8%. Theoretical calculations and experiments demonstrate that doping enhances conductivity and raises the discharge plateau by altering the LUMO energy level. Altering the cathode structure by doping Mg ions to increase energy density and control Mg(OH)<sub>2</sub> deposition is expected to advance the development of zinc batteries and inspire other high-performance aqueous energy storage systems.","PeriodicalId":394,"journal":{"name":"Nano Energy","volume":"13 1","pages":""},"PeriodicalIF":17.6,"publicationDate":"2024-12-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142841547","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
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