Energy technology最新文献_第4页

Machine Learning-Assisted Optimization of Additive Engineering in FAPbI3-Based Perovskite Solar Cells: Achieving High Efficiency and Long-Term Stability 基于fapbi3的钙钛矿太阳能电池增材工程的机器学习辅助优化：实现高效率和长期稳定性

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-10 DOI: 10.1002/ente.202401684

Weihua Qu, Qiang Xie, Yufeng Chen

引用次数: 0

Design of Chitin Partial Dissolution System for Construction of High-Efficiency Energy Storage Porous Carbon 构建高效储能多孔碳的几丁质部分溶解体系设计

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-10 DOI: 10.1002/ente.202401599

Zhuoling Gu, Zhigang Xu, Yidan Jing, Taixi Li, Xinran Gai, Deng, Deqian Meng, Yunzhi Hu, Guochu Tang, Xiaomin Zhang

{"title":"Design of Chitin Partial Dissolution System for Construction of High-Efficiency Energy Storage Porous Carbon","authors":"Zhuoling Gu, Zhigang Xu, Yidan Jing, Taixi Li, Xinran Gai,  Deng, Deqian Meng, Yunzhi Hu, Guochu Tang, Xiaomin Zhang","doi":"10.1002/ente.202401599","DOIUrl":"https://doi.org/10.1002/ente.202401599","url":null,"abstract":"Chitin is a cost-effective and abundant resource, enriched with nitrogen and oxygen elements, making it an ideal precursor for carbon-based materials. However, traditional methods for preparing activated carbon from chitin often require substantial amounts of activators and complex carbonization processes, leading to suboptimal energy storage efficiency. This study presents a partial dissolution system achieved by modulating the mass ratio of chitin to activators (KOH and urea) and optimizing freeze-thaw cycles. When chitin/KOH/urea is mixed at a 1:1:1.5 mass ratio and subjected to three freeze-thaw cycles, the resulting porous carbon demonstrates a high specific surface area of 1783 m2 g−1 with significant N (4.75%) and O (11.16%) doping. The electrode achieves a specific capacitance of 309.1 F g−1 at 0.5 A g−1 in a three-electrode system with 6 m KOH as the electrolyte. After 5000 charge–discharge cycles at 5 A g−1, the capacitance retention rate remains at 91.08%, indicating excellent cycling stability. When assembled into a symmetrical supercapacitor, it exhibits an energy density of 5.69 Wh kg−1 at a power density of 4996.1 W kg−1, demonstrating remarkable energy storage performance. This work introduces a novel method for preparing chitin-derived porous carbon materials.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793420","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

Compression-Assisted Improvement of Electrochemical Performances of Carbon Nanotube in Symmetric Supercapacitors 对称超级电容器中碳纳米管电化学性能的压缩改进

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-09 DOI: 10.1002/ente.202401777

Yunkuo Sun, Baohong Ding, Yonghua Jiao, Wei Sun

{"title":"Compression-Assisted Improvement of Electrochemical Performances of Carbon Nanotube in Symmetric Supercapacitors","authors":"Yunkuo Sun, Baohong Ding, Yonghua Jiao, Wei Sun","doi":"10.1002/ente.202401777","DOIUrl":"https://doi.org/10.1002/ente.202401777","url":null,"abstract":"The unique geometry of carbon nanotubes (CNTs) contributes to their excellent rate capability when used as electrode materials for supercapacitors (SCs). However, the practical application of low-cost commercial CNTs is limited by their moderate specific capacitance due to the relatively low surface area which is around 220 m2 g−1. This limitation can be addressed by applying proper compressive stress to the CNTs, resulting in improved capacitance. The effects of compression on capacitance vary depending on the length and inner diameter of the CNTs, which have been systematically investigated. It has been found that longer and narrower CNTs exhibit more significant improvements in capacitance due to compression. Specifically, under 12 MPa, there is an ≈135% increase in specific capacitance compared to that under 1 MPa, with the optimum value of 68.2 F g−1 at 1 A g−1. An excellent rate capability of 93.5% at 40 A g−1 is also obtained by compression. Furthermore, when an light emitting diode light is powered by a compressed CNT-based SC, both brightness and lasting time are dramatically enhanced compared to the case without compression. This cost-efficient strategy for improving the energy storage performance of CNTs may facilitate their practical application as electrode materials for ultrafast supercapacitors.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793544","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

Preparation and Lithium Storage Performance of Si/C Composites as Anode Materials for Lithium-Ion Batteries: A Review 锂离子电池负极材料Si/C复合材料的制备及其储锂性能研究进展

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-09 DOI: 10.1002/ente.202401313

Jingbo Liu, Yanxia Liu, Zhenzhen Guo, Cheng Qian, Fan Liu, Fengtao Chai, Chongchong Zhao, Feng Huo

{"title":"Preparation and Lithium Storage Performance of Si/C Composites as Anode Materials for Lithium-Ion Batteries: A Review","authors":"Jingbo Liu, Yanxia Liu, Zhenzhen Guo, Cheng Qian, Fan Liu, Fengtao Chai, Chongchong Zhao, Feng Huo","doi":"10.1002/ente.202401313","DOIUrl":"https://doi.org/10.1002/ente.202401313","url":null,"abstract":"\u0000Silicon offers a theoretical specific capacity of up to 4200 mAh g−1, positioning it as one of the most promising materials for next-generation lithium-ion batteries (LIBs). However, during lithium insertion and deinsertion, Si undergoes significant volume expansion, leading to rapid capacity degradation, which has limited its application as an anode material in LIBs. To address this issue, coupling Si with carbon enables the combination of the high lithiation capacity of Si with the excellent mechanical strength and electrical conductivity of carbon. This synergy makes silicon/carbon composites (Si/C) ideal candidates for LIB anodes. In this review, recent advancements in Si/C composite materials for LIBs are categorized based on synthesis methods and design principles. The review also summarizes the morphological characteristics and electrochemical performance of these materials. Additionally, other factors influencing the performance of Si/C anodes are discussed, and future development prospects for Si/C anodes are briefly explored.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793632","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

Amino-Modified Porous Aromatic Frameworks for Enhanced Lithium-Ion Dissociation and Transport in Polymer Electrolytes 氨基修饰多孔芳香骨架增强锂离子在聚合物电解质中的解离和输运

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-09 DOI: 10.1002/ente.202401692

Ruyi Ma, Chengwei Lv, Zhangnan Li

{"title":"Amino-Modified Porous Aromatic Frameworks for Enhanced Lithium-Ion Dissociation and Transport in Polymer Electrolytes","authors":"Ruyi Ma, Chengwei Lv, Zhangnan Li","doi":"10.1002/ente.202401692","DOIUrl":"https://doi.org/10.1002/ente.202401692","url":null,"abstract":"Enhancing the ionic conductivity of solid polymer electrolytes and accelerating ion transport are pivotal challenges in achieving lithium-ion batteries with high energy density and excellent electrochemical performance. In this study, amino-modified porous aromatic frameworks (AMPAF) are prepared. The amino group in AMPAF stabilizes the anion through hydrogen bonding to reduce the dissociation energy barrier of Li+, enabling Li+ to be more easily dissociated from lithium salts. Additionally, the abundant pores of AMPAF promote the rapid transport of Li+. The prepared quasi-solid polymer electrolyte (AMPAF-QSPE) exhibited a high Li+ conductivity of 7.62 × 10−5 S cm−1 and a Li+ transference number as high as 0.55, which proves the restriction of the amino group in AMPAF on the movement of anions and the ability to dissociate lithium salts. The discharge specific capacity of Li//AMPAF-QSPE//LiFePO4 reached as high as 137 mAh g−1 at 0.2 °C, and the capacity retention rate was stable at 85% after 200 cycles. This article presents an effective attempt to enhance the overall performance of polymer electrolytes using amino-modified PAF, offering an innovative perspective for the development of electrochemical energy storage technologies.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793543","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

Design and Assessment of a Linear Drive-Controlled Tilt-Roll Heliostat with Sun Tracking Algorithm for Small-Scale Solar Installation 小型太阳能装置中带太阳跟踪算法的直线驱动控制斜滚定日镜的设计与评估

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-08 DOI: 10.1002/ente.202401051

Adithyan TR, Sreeram K. Kalpathy, Tiju Thomas

{"title":"Design and Assessment of a Linear Drive-Controlled Tilt-Roll Heliostat with Sun Tracking Algorithm for Small-Scale Solar Installation","authors":"Adithyan TR, Sreeram K. Kalpathy, Tiju Thomas","doi":"10.1002/ente.202401051","DOIUrl":"https://doi.org/10.1002/ente.202401051","url":null,"abstract":"Heliostats are devices used for solar concentration that use mirrors oriented according to the position of the sun. A heliostat's main function is to redirect sunlight for use in a variety of applications, including heating, lighting, scientific research, and solar power generation. The two-axis tracking employed in the device ensures that the reflected irradiance is aimed at a predetermined target. The design and evaluation of a tilt-roll two-axis tracking heliostat are presented in this article. The model consists of a mirror 0.45 m in width and 0.45 m in length installed on a pedestal of height 0.75 m. The motion of the heliostat is controlled using two separate linear drives via a sun-tracking algorithm implemented in a microcontroller. A small-scale tilt-roll design with a reflective area (mirror) of 0.2025 m2 is established. This novel design eliminates the need for commercially available solar tracking systems and can be deployed in areas of limited installation space. Dual-axis heliostat design used here provides an effective way to track the sun's movement for maximum solar energy capture by combining tilt and roll mechanisms. This design ensures tracking precision for optimal solar energy concentration making it well-suited for experimental and smaller-scale deployments.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 3","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143565106","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

Combined Displacement/Intercalation Mechanism of Ag0.33V2O5 Cathode for Rechargeable Zinc-Ion Batteries 可充电锌离子电池负极Ag0.33V2O5复合位移/插层机理研究

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-08 DOI: 10.1002/ente.202401729

Hyeonjun Lee, Hyungjin Lee, Seung-Tae Hong, Munseok S. Chae

引用次数: 0

Modulation of Energy Band Positions in Sb2S3 Thin Films for Enhanced Photovoltaic Performance of FTO/TiO2/Sb2S3/P3HT/Au Solar Cell Sb2S3薄膜能带位置调制对FTO/TiO2/Sb2S3/P3HT/Au太阳能电池光电性能的影响

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-08 DOI: 10.1002/ente.202401475

Nithyapremini Gunasekaran, Deepan Chakravarthi Nagarajan, Devaraj Nataraj, Kandasamy Prabakar

{"title":"Modulation of Energy Band Positions in Sb2S3 Thin Films for Enhanced Photovoltaic Performance of FTO/TiO2/Sb2S3/P3HT/Au Solar Cell","authors":"Nithyapremini Gunasekaran, Deepan Chakravarthi Nagarajan, Devaraj Nataraj, Kandasamy Prabakar","doi":"10.1002/ente.202401475","DOIUrl":"https://doi.org/10.1002/ente.202401475","url":null,"abstract":"Antimony sulfide (Sb2S3) has the potential as an absorber material in photovoltaics due to its suitable bandgap and favorable optoelectronic properties. However, its energy band positions are not extensively explored which are essential for effective charge separation and transfer. This study examines the energy band positions of Sb2S3 thin films as a function of annealing temperature. Sb2S3 thin films are grown by a combination of successive ionic layer adsorption and reaction (SILAR) and chemical bath deposition (CBD) method to enhance the crystallinity, tune the bandgap, and overall quality of Sb2S3 films to enhance the photovoltaic performance. Optical bandgap decreases from 2.41 to 1.67 eV from the as-deposited films to annealed at 300 °C due to changes in interatomic distances. Energy band positions of Sb2S3 films are measured both by cost-effective electrochemical cyclic voltammetry and Mott–Schottky analysis and validated the findings using ultraviolet photoelectron spectroscopy (UPS). The conductivity of Sb2S3 is found to be n-type. Thin-film solar cells are then fabricated by employing Sb2S3 as an absorber layer in an FTO/TiO2/Sb2S3/P3HT/Au structure, achieving an enhanced power conversion efficiency, increasing from 0.4 to 2.8% after annealing. These findings demonstrate the potential of Sb2S3 as a low-cost absorber material for thin-film photovoltaics.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 5","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143939056","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

A Review on Minimization of Polysulfide Shuttle Effect of Lithium–Sulfur Batteries by Using Low-Dimensional Carbon Composite as the Sulfur Cathode 低维碳复合材料作为硫阴极减少锂硫电池多硫穿梭效应的研究进展

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-06 DOI: 10.1002/ente.202401451

Aishwarya Chalil Suresh, Nagaraju Kottam, Savitha Hosamane

{"title":"A Review on Minimization of Polysulfide Shuttle Effect of Lithium–Sulfur Batteries by Using Low-Dimensional Carbon Composite as the Sulfur Cathode","authors":"Aishwarya Chalil Suresh, Nagaraju Kottam, Savitha Hosamane","doi":"10.1002/ente.202401451","DOIUrl":"https://doi.org/10.1002/ente.202401451","url":null,"abstract":"\u0000Owing to the high specific energy density in theories, abundance of resources, and adherence to environmental standards, rechargeable lithium–sulfur batteries (LSB) have drawn an increasing amount of interest. However, the weak conductivity of the sulfur and discharge products, the drastic breakdown and migration of the intermediates of lithium polysulfide (LiPSs) leading to shuttle effect, and the enormous volumetric change of sulfur particles upon cycle substantially hinder their practical uses. Due to the considerable capacity diminishing caused by the shuttle impact corrosion of the lithium metal, LSBs are thought to have significant commercial application challenges. Engineering nanomaterials’ surface structures can increase the affinity between the cathode with the LiPSs while also enabling the redox kinetics of the LiPSs, which results in a low level of LiPSs in the electrolyte that can restrict the shuttle effect. Sulfur and carbon materials, when combined, effectively increase the efficiency of active materials, increase the conductive properties of cathode components, and serve as a barrier against polysulfides. In this review, a thorough analysis is provided on low-dimensional carbon materials as cathode, by which the electrode modification technique for limiting the shuttle effect of polysulfide in LSBs and forecast future research trends on the same.","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"13 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2024-12-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143793488","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

Dielectric Barrier Discharge Reactors for Plasma-Assisted CO2 and CH4 Conversion: A Comprehensive Review of Reactor Design, Performance, and Future Prospects 等离子体辅助CO2和CH4转化的介质阻挡放电反应器：反应器设计、性能和未来展望的综合综述

IF 3.6 4区工程技术

Energy technology Pub Date : 2024-12-06 DOI: 10.1002/ente.202401177

Md Robayet Ahasan, Md Monir Hossain, Ruigang Wang

引用次数: 0