Energy technology最新文献_第8页

Numerical Simulation and Experimental Study on the Effect of Anode Pressure on the Performance of the Proton Exchange Membrane Fuel Cell with Dead-Ended Anode 阳极压力对死端阳极质子交换膜燃料电池性能影响的数值模拟与实验研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-03-06 DOI: 10.1002/ente.202402147

Shihua Liu, Jiahong Zhang, Lei Liu, Linjia Pang, Xiaoyang Li, Tie Geng, Yonggang Guo

{"title":"Numerical Simulation and Experimental Study on the Effect of Anode Pressure on the Performance of the Proton Exchange Membrane Fuel Cell with Dead-Ended Anode","authors":"Shihua Liu, Jiahong Zhang, Lei Liu, Linjia Pang, Xiaoyang Li, Tie Geng, Yonggang Guo","doi":"10.1002/ente.202402147","DOIUrl":"https://doi.org/10.1002/ente.202402147","url":null,"abstract":"The anode pressure (Pa) has a crucial impact on the performance of proton-exchange membrane fuel cell with dead-ended anode (DEA-PEMFC). In order to study the influence mechanism of Pa on the performance of DEA-PEMFC, numerical simulation and in-situ measurement experiments are conducted in this article. The research results indicate that higher Pa increases the partial pressure of water vapor and nitrogen on the anode side, thereby inhibiting the permeation process of water and nitrogen from the cathode side to the anode. This effectively alleviates the accumulation of water and nitrogen at the end of the anode flow channel. Simultaneously, this also raises H2 concentration on anode side and promotes the electrochemical reactions progress. Therefore, the higher Pa, the longer stabilization time and better the performance of DEA-PEMFC. The results of this article provide guidance for optimizing the work scheme of DEA-PEMFC.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111029","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

MOF-808 Enhanced MXene Tribopositive Layer for High-Performance Triboelectric Nanogenerators 高性能摩擦电纳米发电机用MOF-808增强型MXene摩擦正层

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-03-06 DOI: 10.1002/ente.202500041

Muzamil Hussain Memon, Amna Mir, Fahad Rehman, Um-e-Salma Amjad, Maria Mustafa

{"title":"MOF-808 Enhanced MXene Tribopositive Layer for High-Performance Triboelectric Nanogenerators","authors":"Muzamil Hussain Memon, Amna Mir, Fahad Rehman, Um-e-Salma Amjad, Maria Mustafa","doi":"10.1002/ente.202500041","DOIUrl":"https://doi.org/10.1002/ente.202500041","url":null,"abstract":"Smart electronic devices require an energy harvester that is a durable, portable, miniature, and long-lasting power source. As an energy harvester, triboelectric nanogenerator (TENG) is a promising state-of-the-art technology that can provide power on demand. The choice of triboactive materials greatly influences TENG performance, and recently, great attention has been given to composite materials. Herein, it is shown that the MOF-808@MXene/PVDF TENG fabricated from a composite of MOF-808 with MXene produces a synergistic effect, thus generating higher triboelectric output than MOF-808/PVDF TENG and MXene/PVDF TENG, respectively. The optimized MOF-808@MXene/PVDF TENG delivers an output of 296.22 V, 30.7 μA, and 67.4 mW m−2. The figure-of-merit performance indicates a thirteen times increase in improvement from MOF-808/PVDF TENG and the improvement doubles for MXene/PVDF TENG, respectively. Moreover, all the optimized TENGs are found to be stable for up to 5000 repeated cycles and are also tested toward endurance of up to 10 weeks. The results also depict that among all TENG, the composite MOF-808@MXene/PVDF TENG shows only a 34% reduction in output voltage after 10 weeks of endurance and, therefore, can be used as a durable, long-lasting power source for micro-based circuit device applications.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-03-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111028","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of an Induction Supported Roll to Roll Process for the Accelerated Drying of Water-Based Anodes and N-Methyl-2-Pyrrolidone-Based Cathodes for Lithium-Ion Batteries 用于锂离子电池水基阳极和n -甲基-2-吡啶酮基阴极加速干燥的感应支撑卷对卷工艺的开发

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-03-05 DOI: 10.1002/ente.202402182

Max-Wolfram von Horstig, Robin Moschner, Oliver Landrath, Peter Michalowski, Arno Kwade

{"title":"Development of an Induction Supported Roll to Roll Process for the Accelerated Drying of Water-Based Anodes and N-Methyl-2-Pyrrolidone-Based Cathodes for Lithium-Ion Batteries","authors":"Max-Wolfram von Horstig, Robin Moschner, Oliver Landrath, Peter Michalowski, Arno Kwade","doi":"10.1002/ente.202402182","DOIUrl":"https://doi.org/10.1002/ente.202402182","url":null,"abstract":"\u0000The electrode drying process in lithium-ion-battery production is energy-intensive and contributes significantly to production costs due to its large machine footprint. This study explores the use of induction heating technology to enhance drying rates and overall process efficiency compared to traditional convective drying methods. A novel monitoring method utilizing spot temperature measurements with infrared pyrometers is developed to assess drying dynamics effectively in a pilot-scale roll-to-roll dryer. Results show a mean drying rate increase of 23.0% for water-based anodes and 13.4% for N-methyl-2-pyrrolidone-based cathodes, with an inductive heating efficiency of up to 60%. Additionally, electrodes treated at moderate induction intensities maintained mechanical properties and electrochemical performance comparable to conventionally dried electrodes. To address overheating risks in uncoated foil areas, effective shielding solutions are implemented, reducing oxidation and thermal degradation from inductive heating. The success of induction heating in this pilot-scale environment raises its technology readiness level (TRL) to TRL5 as it closely resembles realistic production environments, indicating its relevance for realistic production scenarios. This research offers important insights into the application of induction heating for lithium-ion-battery electrode production and highlights potential areas for further optimization and scalability.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.202402182","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Unraveling the Energy-Harvesting Performance of Antimony-Doped BaTiO3 Toward Self-Powered on-Body Wearable Impact Sensor 锑掺杂BaTiO3对自供电体上可穿戴冲击传感器能量收集性能的研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-03-05 DOI: 10.1002/ente.202500047

Rayavarapu Vamsi, Durgaraju Kanaka Harshitha, Kaliyannan Manojkumar, Dhara Sateesh, Rajaboina Rakesh Kumar, Jananipriya Boominathan, Sugato Hajra, Swati Panda, Hoe Joon Kim, Venkateswaran Vivekananthan

{"title":"Unraveling the Energy-Harvesting Performance of Antimony-Doped BaTiO3 Toward Self-Powered on-Body Wearable Impact Sensor","authors":"Rayavarapu Vamsi, Durgaraju Kanaka Harshitha, Kaliyannan Manojkumar, Dhara Sateesh, Rajaboina Rakesh Kumar, Jananipriya Boominathan, Sugato Hajra, Swati Panda, Hoe Joon Kim, Venkateswaran Vivekananthan","doi":"10.1002/ente.202500047","DOIUrl":"https://doi.org/10.1002/ente.202500047","url":null,"abstract":"Harvesting ambient mechanical energy from the environment has gained immense interest due to its application in energy harvesting and active sensing. Herein, an ABO3 class ferroelectric semiconducting material BaTiO3 nanoparticles are used, and Antimony (Sb) is used as a dopant, which can be able to enhance the piezoelectric coefficient of BaTiO3 to a higher level, leading to increased energy-harvesting performances. The fabricated antimony-doped barium titanate [Sb-doped BaTiO3 designated as (BST)] is then blended with polydimethylsiloxane (PDMS) to prepare a composite film. Electrodes are then attached with the composite film on either side to fabricate the flexible composite piezoelectric nanogenerator (FCF-PENG) device. The fabricated FCF-PENG device generates a maximum electrical output of peak-to-peak 28 V and 1.5 μA, respectively. The device also shows a good power density of 1.6 mW m−2 at the load resistance of 80 MΩ. At last, a real-time impact sensor was fabricated to employ the device as the wearable impact sensor. The fabricated impact sensor detects the impact from high to low upon the human collision impact tested within the laboratory and the impact values are recorded and monitored with indicator using ESP32 microcontroller and ThingSpeak cloud. The above analysis and the real-time experiments proved that the fabricated impact sensor paves the way toward sports healthcare and rehabilitation with Internet of Things (IoT) devices soon.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Self-Powered Micrometeorological Monitoring by Electromagnetic–Triboelectric Hybrid Generator in Transmission Lines 输电线路电磁-摩擦混合发电机自供电微气象监测

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-03-05 DOI: 10.1002/ente.202401986

Xin Yu, Xiaolei Lu, Xinrui Li, Wendong Qi, Yuhang Xing, Mingxing Cui, Yuxiao Xin, Junhao Wang, Jing Zhao, Ruifang Zheng

{"title":"Self-Powered Micrometeorological Monitoring by Electromagnetic–Triboelectric Hybrid Generator in Transmission Lines","authors":"Xin Yu, Xiaolei Lu, Xinrui Li, Wendong Qi, Yuhang Xing, Mingxing Cui, Yuxiao Xin, Junhao Wang, Jing Zhao, Ruifang Zheng","doi":"10.1002/ente.202401986","DOIUrl":"https://doi.org/10.1002/ente.202401986","url":null,"abstract":"The power supply problem of perception terminals such as micrometeorological monitoring sensors on high-voltage transmission lines restricts their large-scale development. Herein, a hybrid self-powered micrometeorological remote monitoring system that integrates triboelectric and electromagnetic technologies is proposed. In the system, wind energy monitoring and energy harvesting device plays an important role. It includes three functions: electromagnetic generator can stabilize a 5 F supercapacitor at 5.34 V within 417 s and supply power to the microcontroller unit, monitoring sensor units, and communication units; wind speed triboelectric nanogenerator rotates to output AC signal, which can detect the wind speed of transmission line, and the fitting goodness of wind speed and frequency can reach 0.998; while wind direction triboelectric nanogenerator can effectively reduce the transmission overhead, the multisignal processing circuit and multisignal detection port required for multiangle wind direction detection are optimized to just two processing circuits and two signal detection ports. This work can monitor the wind speed, wind direction, temperature, humidity, and air pressure of field transmission lines in real time without external power supply. Triboelectric–electromagnetic hybrid self-powered micrometeorological remote monitoring system has a good engineering application prospect in the field of smart grid.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110831","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal Hydride Electrodes Applied to Ni-MH Battery Using Mg-Y-Ni-Cu-Based Alloys mg - y - ni - cu基合金在镍氢电池中的应用

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-03-04 DOI: 10.1002/ente.202402252

Wei Sun, Peng Sheng, Xin Zhang, Hanfeng Sun, Jun Li, Zheng Cao, Yan Qi, Yanghuan Zhang

{"title":"Metal Hydride Electrodes Applied to Ni-MH Battery Using Mg-Y-Ni-Cu-Based Alloys","authors":"Wei Sun, Peng Sheng, Xin Zhang, Hanfeng Sun, Jun Li, Zheng Cao, Yan Qi, Yanghuan Zhang","doi":"10.1002/ente.202402252","DOIUrl":"https://doi.org/10.1002/ente.202402252","url":null,"abstract":"To improve the electrochemical properties of the Mg-Ni-based alloys, mechanical ball milling was used to create the nanocrystalline and amorphous Mg50−xYxNi45Cu5 (x = 0, 1, 2, 3, 4) + 50 wt%Ni (named Mg50−xYxNi45Cu5 (x = 0, 1, 2, 3, 4) + 50Ni) alloys. The effects of Y content and ball milling time on the microstructure and electrochemical hydrogen storage properties of the alloy are investigated. The results show that the as-milled alloys can electrochemical hydrogen absorption and desorption effectively at room temperature. The as-milled alloys can reach their maximal discharge capability without activation in the initial cycle. The maximum discharge capacities of the 5 h- and 30 h-milled alloys are 407.8 and 600.6 mAh g−1, respectively. With the increase of Y content, the alloys exhibit a noticeable enhancement in cycle stability. With Y content increasing from 0 to 4, the retention rate of capacity increases from 36% to 63% at 100th cycles for the 5 h-milled alloy, and the retention rate of capacity increases from 55% to 79% for the 30 h-milled alloy. Furthermore, Y addition effectively enhances the electrochemical kinetic characteristics of the alloys.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-03-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145110950","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring the Structural Forms and Catalytic Potential of Carbon Nanomaterials in Metal–Air Batteries 碳纳米材料在金属-空气电池中的结构形式和催化潜力的探索

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-28 DOI: 10.1002/ente.202401978

Zixin Li, Yao Hu, Haihui Lan, Huicong Xia

{"title":"Exploring the Structural Forms and Catalytic Potential of Carbon Nanomaterials in Metal–Air Batteries","authors":"Zixin Li, Yao Hu, Haihui Lan, Huicong Xia","doi":"10.1002/ente.202401978","DOIUrl":"https://doi.org/10.1002/ente.202401978","url":null,"abstract":"Metal–air batteries are highly valued for their exceptional energy efficiency and affordability. Identifying suitable electrode materials is crucial to fully harness their potential. Carbon nanomaterials, renowned for their excellent conductivity, vast specific surface area, robust stability, and minimal volume expansion, have emerged as a preferred choice for many. However, early characterization techniques struggle to precisely pinpoint catalytic active sites across various electrocatalytic reactions, making it challenging to comprehend the experimental impact of different active site types on these reactions. This has posed a significant obstacle to unveiling the catalytic mechanism and developing efficient catalysts. With advancements in characterization methods, studies on carbon nanomaterials have progressed rapidly. Herein, the structure of carbon nanomaterial catalysts are reshaped by the researchers to improve catalytic efficiency, resulting in four distinct structural forms: metal-free carbon–based materials, atomically dispersed metal carbon-based materials, metal nanoparticles encapsulated in carbon-based materials, and metal nanoparticles supported on carbon-based materials. In this review, the features of these structural forms and their application contexts, detailing the synthesis methods and catalytic effects of each form, are highlighted. This article concludes with an overview of recent advancements and future directions in the characterization techniques of carbon materials.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-Sensitive Bubble Level-Based Triboelectric Sensor for Motion Monitoring 用于运动监测的高灵敏度气泡液位摩擦电传感器

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-28 DOI: 10.1002/ente.202402474

Xiaolong Zhang, Rushun Ying

{"title":"High-Sensitive Bubble Level-Based Triboelectric Sensor for Motion Monitoring","authors":"Xiaolong Zhang, Rushun Ying","doi":"10.1002/ente.202402474","DOIUrl":"https://doi.org/10.1002/ente.202402474","url":null,"abstract":"The self-powered motion sensor based on solid friction electrification has attracted more and more attention since its independent and sustainable operation without an external power source in vibration monitoring. However, the measurement accuracy of these sensors is often affected by the large friction force and instability of the friction between solids, which highly limits their practical applications. Here, a novel high-resolution bubble level-based triboelectric sensor (BL-TES) is proposed to detect weak vibrations basing on liquid–solid triboelectrification and the inertial oscillations of the bubble. The results indicate that the electric signal of the BL-TES can detect the motion information in real time with high sensitivity. Compared with the solid-based triboelectric sensors dominated by threshold static solid–solid friction force, the BL-TES is dominated by the solid–liquid friction with very small friction force and the high-pressure differential driven force, which result in a high resolution of 0.35 m s−2 and sensitivity of 6.35 nA s−2 m−1. Given its easy fabrication and high-sensitive property, this type of BL-TES has promising potential applications in scavenging weak mechanical energy and detecting weak vibration.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 9","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145111427","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Metal–Organic Frameworks: Synthesis Methods and Multifunctional Applications 金属有机骨架：合成方法及其多功能应用

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-27 DOI: 10.1002/ente.202402354

Jaykishon Swain, Anulipsa Priyadarshini, Swati Panda, Sugato Hajra, Niharika Das, Venkateswaran Vivekananthan, Krystian Mistewicz, Raghabendra Samantray, Hoe Joon Kim, Rojalin Sahu

{"title":"Metal–Organic Frameworks: Synthesis Methods and Multifunctional Applications","authors":"Jaykishon Swain, Anulipsa Priyadarshini, Swati Panda, Sugato Hajra, Niharika Das, Venkateswaran Vivekananthan, Krystian Mistewicz, Raghabendra Samantray, Hoe Joon Kim, Rojalin Sahu","doi":"10.1002/ente.202402354","DOIUrl":"https://doi.org/10.1002/ente.202402354","url":null,"abstract":"Metal–organic frameworks (MOFs) have emerged as a transformative class of materials in materials science and chemistry due to their exceptional porosity and structural tunability. Composed of metal ions or clusters intricately coordinated with organic ligands, MOFs form highly ordered 3D networks with well-defined pores and channels. These unique characteristics enable precise customization of pore size, shape, and functionality through the selection of appropriate metal ions and ligands, unlocking diverse applications across multiple fields. This review provides a comprehensive exploration of MOFs, focusing on their synthesis, structural properties, and versatility. Key areas of discussion include MOFs’ potential for catalytic activity, gas storage, sensing, and drug delivery. Of particular importance is their transformative role in environmental remediation, energy storage, and biomedical applications, demonstrating their adaptability to modern challenges. However, significant barriers such as scalability, long-term stability, and economic viability must be addressed to enable widespread adoption. By detailing state-of-the-art advancements, this review highlights MOFs’ unparalleled ability to achieve precision and efficiency in targeted applications, offering valuable insights for emerging researchers. The findings underscore MOFs’ pivotal role in addressing contemporary scientific and industrial challenges, paving the way for innovative solutions in energy, environment, and health.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939273","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Designing an Exfoliated Hexagonal Boron Nitride Nanosheets Embellished on Spherical ZnS as an Efficient Electrode for Hybrid Supercapacitor Applications 球形ZnS修饰的脱片状六方氮化硼纳米片作为混合超级电容器高效电极的设计

IF 3.6 4区工程技术

Energy technology Pub Date : 2025-02-27 DOI: 10.1002/ente.202401993

Dhamodharan Krishnamoorthy, Abhishek Kumar Singh

{"title":"Designing an Exfoliated Hexagonal Boron Nitride Nanosheets Embellished on Spherical ZnS as an Efficient Electrode for Hybrid Supercapacitor Applications","authors":"Dhamodharan Krishnamoorthy, Abhishek Kumar Singh","doi":"10.1002/ente.202401993","DOIUrl":"https://doi.org/10.1002/ente.202401993","url":null,"abstract":"Supercapacitors have evolved into a viable solution for confronting issues of energy demand for modern technological world, but its most significant challenge is the construction of novel electrode devices with long-term energy accumulation. In this current work, exfoliated h-BN-ZnS nanocomposites have been efficiently synthesized through an ultrasonication technique. The characterizations of Raman, X-ray diffraction, and X-ray photoelectron spectroscopy studies ensure the successful preparation of exfoliated h-BN-ZnS nanocomposites. Further, morphology is visualized by field emission scanning electron microscopy and high-resolution transmission electron microscopy, displaying exfoliated h-BN nanosheets embellished over a surface of spherical-shaped ZnS particles. The electrochemical studies of cyclic voltammetry, electrochemical impedance spectroscopy, and galvanostatic charge and discharge have been tested in which the exfoliated h-BN-ZnS NCs working electrode reveals maximum specific capacity of 919.09 C g−1 at 10 mV s−1. A hybrid supercapacitor device is constructed by assembling an exfoliated h-BN-ZnS and activated carbon as positive and negative electrode, providing an excellent specific capacity of 273.54 C g−1 at 1 A g−1, and achieving a good energy density of 64.20 Wh kg−1 at the corresponding power density of 844.92 W kg−1, and showing 94.5% of superior capacity retention at 10 A g−1 of current density over 5000 cycles respectively.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2025-02-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939577","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0