Energy technology最新文献

{"title":"Enhanced Electrocatalytic Activity of SrCrO3-MWCNT Composite for OER in Alkaline Medium","authors":"Kiran Tahir,&nbsp;Javeria Bibi,&nbsp;Hala M. Abo-Dief,&nbsp;Eman Alzahrani,&nbsp;Samira Elaissi,&nbsp;Ali El-Rayyes,&nbsp;Abhinav Kumar,&nbsp;Rizwan Ul Hassan","doi":"10.1002/ente.70657","DOIUrl":"https://doi.org/10.1002/ente.70657","url":null,"abstract":"<p>In the current era, preparation of affordable, highly effective, environment friendly and novel electrocatalysts for hydrogen production by water splitting is an important strategy for addressing global energy challenges. Current study presents the synthesis of an innovative, effective and ecofriendly SrCrO₃-MWCNT composite using sonication method. The incorporation of MWCNTs into SrCrO₃ aims to enhance its electrical conductivity, facilitate charge transfer and increase the accessibility of active regions, thus improving its electrocatalytic efficiency for hydrogen production. The physical properties of the fabricated catalysts were analyzed to evaluate their structural and textural characteristics. The SrCrO₃-MWCNT composite exhibited well-defined crystalline structure with high surface area of 151.49 m²/g. The prepared SrCrO₃-MWCNT composite demonstrated notable catalytic activity, showcasing increased electrochemical surface area (ECSA) of 337 cm². The outstanding ECSA of nanocomposite results in reduced overpotential (<i>η</i> = 197 mV) and less Tafel slope of 33 mV/dec at a current density (<i>j</i>) of 10 mA/cm² in alkaline solution. Furthermore, SrCrO₃-MWCNT nanocomposite showed durability for a duration of 50 h and reduced charge transfer resistance of (<i>R</i>_ct) of 1.04 Ω. The extensive surface area, improved ionic diffusion and enhanced electronic conductivity significantly boosted the electrochemical efficiency of the composite, providing novel opportunities in field of sustainable energy production.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146409","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}

{"title":"Using Physics-Informed Neural Networks to Predict the Damage in Single Particle Models for Li-Ion Batteries Active Materials","authors":"Nikolai Erhardt,&nbsp;Tim Laufer,&nbsp;Hermann Nirschl","doi":"10.1002/ente.70681","DOIUrl":"https://doi.org/10.1002/ente.70681","url":null,"abstract":"<p>In order to ensure the longevity of active materials, microscale processes that occur during lithiation and delithiation must be better understood. These processes include chemical diffusion, the mechanical equilibrium of the host material, and fatigue phenomena in the material, which result in damage. Since experimental investigation of these individual but strongly intercoupled effects is hardly possible given the current state of research, this work presents the mathematical, theoretical equations for a 1D single-particle model with their mutual feedbacks and a phase field approach for the damage calculation. To solve the resulting system of equations, a Physics-Informed Neural Network (PINN) is used, which combines the advantages of Artificial Neural Networks (ANN) of fast execution and grid freedom with the advantages of conventional numerical methods such as interpretability and a flexible handling of boundary conditions. It is shown that a PINN is capable of learning the complex coupled governing differential equations. NMC622 is investigated as the active material on the cathode side. It was found that during lithiation with a stress-free surface, notably high currents lead to damage in the particle. This damage then occurs predominantly in the center of the particle and is mainly favored by a high level of lithiation.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.70681","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146041","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}

{"title":"Revealing the Potential of Ti3CN/g-C3N4 Hybrid as a High-Performance Electrode for Efficient Supercapacitor","authors":"Anfal Iftikhar,&nbsp;Kubra Sattar,&nbsp;Arooma Syed,&nbsp;Muhammad Z. Iqbal,&nbsp;S. AlFaify,&nbsp;Adil Murtaza,&nbsp;Syed Rizwan","doi":"10.1002/ente.70678","DOIUrl":"https://doi.org/10.1002/ente.70678","url":null,"abstract":"<p>MXenes, due to their 2D-layered structure, admirable conductivity, eminent electrical capacity, and unique chemical composition, paved the way for the evolution of applications such as supercapacitors. In this research work, a hybrid of Ti₃CN and g-C₃N₄ is synthesized. The successful synthesis of the hybrid was confirmed by X-ray diffraction, and structural characterizations were performed to reveal the structural and morphological properties and elemental composition, followed by electrochemical characterizations. This heterostructure has been proved as an efficient electrode for hybrid energy storage devices based on its excellent performance observed in this report. The electrodes prepared showed elevated electrochemical performance in 1 M KOH electrolyte with gravimetric capacitance of approximately 1700 F g⁻¹ at a scan rate of 5  mV s⁻¹ which represents three times increase in capacitance than pristine Ti₃CN. The device demonstrates a high energy density of 33.7  Wh kg⁻¹ with a power density of 230 W  kg⁻¹. The stability of the best electrode is being quantified by electrochemical impedance spectroscopy after running 10 000 cycles, and it exhibited an enhanced rate performance with capacitance retention of 91%. In short, the Ti₃CN/g-C₃N₄ heterostructure exceeded in its performance due to its enhanced active surface area and proved to facilitate charge storage; thereby, contributing to the field of next generation energy storage devices.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.70678","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146053","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}

{"title":"Rapid Microwave-Assisted Formation of Trimetallic NiCoCu-MOFs Based Composites With Multiwalled Carbon Nanotubes and Reduced Graphene Oxide for High Performance Hybrid Supercapacitors","authors":"Muhammad Arqam Karim,&nbsp;Muhammad Ramzan Abdul Karim,&nbsp;Khurram Imran Khan,&nbsp;Anique Ahmed,&nbsp;Areeba Sajid,&nbsp;Mohsin Ali Marwat","doi":"10.1002/ente.70679","DOIUrl":"https://doi.org/10.1002/ente.70679","url":null,"abstract":"<p>The production of highly efficient energy storage systems is important in addressing the rising demand for effective and sustainable energy. Traditional batteries offer high energy density and have capacity loss at each cycle of operation. On the other hand, capacitors are good at producing high power, but their energy storage capabilities are low, limiting their use over an extended period. Owing to these drawbacks, the recent development of supercapacitors is a promising group of devices, which provides both high energy density and power delivery. In this study, a metal-organic framework (MOF) made of trimetallic NiCoCu was prepared through a quick microwave synthesis along with its composites with multiwalled carbon nanotubes (MWCNTs) and reduced graphene oxide (rGO). Microwave synthesis was a rapid and efficient method, which gave a crystalline structure of the product. The electrochemical performance was evaluated based on cyclic voltammetry (CV), galvanostatic charge–discharge (GCD), and electrochemical impedance spectroscopy (EIS). The composite MOF/rGO had the highest specific capacitance of 886.6 F/g among all samples, and its hybrid device gave high energy density of 65.73 Wh/kg along with high power density of 850 W/kg at 1.0 A/g. These results indicate that the use of the microwave-assisted methodology would be an effective strategy to prepare trimetallic MOF-based electrodes with enhanced electrochemical characteristics, which will be applied to high-performance supercapacitors.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145888","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}

{"title":"Preparation and Study of a Bionic “Durian-Shell-Like” FeOOH/PPSC@Co-BTC Core–Shell Bifunctional Electrocatalyst Derived From Waste Polyphenylene Sulfide","authors":"Jiawang Cui,&nbsp;Shuai Wang,&nbsp;Zhangdi Ding,&nbsp;Chengzhi Liu,&nbsp;Shaohang Yuan,&nbsp;Maliang Zhang,&nbsp;Xi Du,&nbsp;Kunmei Su,&nbsp;Zhenhuan Li","doi":"10.1002/ente.70667","DOIUrl":"https://doi.org/10.1002/ente.70667","url":null,"abstract":"<p>Developing cost-effective electrocatalysts for alkaline water splitting remains challenging. Herein, waste polyphenylene sulfide (PPS) was converted into sulfur-doped porous carbon (PPSC), serving as a conductive support for constructing a bionic “durian-shell” FeOOH/PPSC@Co-BTC hierarchical core–shell bifunctional electrocatalyst. The hierarchical architecture facilitates electrolyte accessibility, mass transport, and exposure of electrochemically accessible catalytic interfaces. Benefiting from the synergistic integration of FeOOH, Co-BTC, and PPSC, the catalyst exhibits enhanced catalytic activity in 1.0 M KOH, requiring overpotentials of 73 and 201 mV to achieve 10 mA cm⁻² for HER and OER, respectively. The assembled two-electrode electrolyzer delivers 10 mA cm⁻² at 1.65 V and maintains stable operation for 48 h. This work provides a sustainable strategy for waste plastic upcycling and the design of efficient carbon-supported bifunctional electrocatalysts.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145972","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}

{"title":"Pulse-Assisted Transformation of Electrodeposited ZIF-67 Into Co(OH)2/CoOOH via Off-Time Control for Supercapacitor Applications","authors":"Gift Rutavi,&nbsp;Mesfin Abayneh Kebede","doi":"10.1002/ente.70663","DOIUrl":"https://doi.org/10.1002/ente.70663","url":null,"abstract":"<p>ZIF-67 has been widely studied for supercapacitor applications due to its structural stability. However, one way to enhance its electrochemical performance is to convert it into the redox-active Co(OH)₂/CoOOH phase. In this work, we achieved that by using anodic pulsed-current electrodeposition in an alkaline medium. Introducing a rest period in the electrodeposition sequence enables a deeper transformation of the MOF phase, as ions have sufficient time to penetrate the pores, whereas constant current/voltage conditions confine transformation to the surface. Pulse-5s, the electrode synthesized by introducing a 5s rest time, showed a morphology transformation from the rhombic dodecahedral of ZIF-67 to a nanosheet structure of the Co(OH)₂/CoOOH phase. The electrode also exhibited improved electrochemical performance, delivering a specific capacity of 124.7 mAh g⁻¹ at 1 A g⁻¹ in 2 M KOH. The cycling stability was high, with a coulombic efficiency and capacity retention of 99.8% and 81.2%, respectively, after 5000 GCD cycles.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.70663","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145983","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}

{"title":"Hydrothermal Synthesis of Tetragonal MoB MBene: Process Optimization and Electrochemical Properties","authors":"Suryakanta Pradhan,&nbsp;Gopinath Sahoo,&nbsp;Suman Shit,&nbsp;Debidatta Mohanty,&nbsp;Dinesh Topwal,&nbsp;Shyamal Chatterjee,&nbsp;Avijit Kumar","doi":"10.1002/ente.70669","DOIUrl":"https://doi.org/10.1002/ente.70669","url":null,"abstract":"<p>Two-dimensional (2D) transition metal borides, known as MBenes, possess remarkable properties such as high electrical conductivity, high thermal stability, and high Young's modulus, which make them excellent candidates for applications in energy storage, catalysis, and sensing. Despite such properties, research on MBenes is still at its nascent stage because they involve complex synthesis processes. Among various MBenes, 2D MoB MBene is being extensively investigated; however its synthesis remains time-consuming, requires hazardous etchants, and results in residual salt contamination and undesirable secondary phases. Here, we demonstrate hydrothermal-assisted etching of orthorhombic MoAlB phase using KOH solution at 170 °C for 14 h resulting in high-purity tetragonal MoB MBene. The synthesized MoB exhibits a specific capacitance of approximately 127.5 F g⁻¹ at 0.2 A g⁻¹ in a 3-electrode configuration. Further, the symmetric device containing MoB shows a high energy density of 29.4 μW h cm⁻² at a power density of 2400 μW cm⁻². Our results provide an evidence of synthesis of high-purity tetragonal MoB MBene, establish electrochemical properties-phase relationship, and paves the way for its usage in various applications.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145619","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}

{"title":"Hierarchical Nitrogen-Doped Carbon Hosts for Low-Polarization Sulfur Cathodes in Molten-Salt Aluminum–Sulfur Batteries","authors":"Zhicheng Tang,&nbsp;Guokang Wei,&nbsp;Jia Qiao,&nbsp;Yueyang Liu,&nbsp;Sijiang Hu,&nbsp;Fangping Wang,&nbsp;Yanwei Zhang,&nbsp;Leichao Ming,&nbsp;Hongming Wang","doi":"10.1002/ente.70676","DOIUrl":"https://doi.org/10.1002/ente.70676","url":null,"abstract":"<p>Rechargeable aluminum–sulfur (Al–S) batteries are promising candidates for low-cost and high-capacity energy storage, but their practical performance is restricted by the insulating nature of sulfur/discharge products, sluggish conversion kinetics, and structural instability of sulfur cathodes. Herein, a corn-cob-derived nitrogen-doped activated carbon host (NAC) was prepared through a one-step activation–carbonization process and used as a sulfur host for molten-salt Al–S batteries. Compared with undoped AC, NAC exhibits a wrinkled hierarchical porous structure, which promotes sulfur dispersion, facilitates ion/electron transport, and helps accommodate volume variation during cycling. Benefiting from this host structure, the S@NAC cathode delivers an initial discharge capacity of 1557 mAh g⁻¹ at 1 A g⁻¹ and retains 501 mAh g⁻¹ after 500 cycles, clearly outperforming S@AC. S@NAC also shows reduced electrochemical polarization, with a peak potential separation of 0.289 V at 1 mV s⁻¹, compared with 0.698 0.658 V for S@AC. Electrochemical impedance spectroscopy further reveals a much lower charge–transfer resistance for S@NAC. X-ray diffraction and X-ray photoelectron spectroscopy analyses support the reversible conversion between S and Al₂S₃ during discharge/charge. This work provides a feasible host-design strategy for improving sulfur conversion kinetics in molten-salt Al–S batteries.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149145689","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}

{"title":"Day-Ahead Forecasting of Wind Power Generation and Electricity Market Prices Using Machine Learning","authors":"Saban Pusat,&nbsp;Yasin Karagoz,&nbsp;Selman Karagoz","doi":"10.1002/ente.70680","DOIUrl":"https://doi.org/10.1002/ente.70680","url":null,"abstract":"<p>The rapid expansion of wind energy is fundamentally reshaping electricity price formation in liberalized power markets,increasing both volatility and forecasting uncertainty. This study investigates how short-term wind generation forecasts influence day-ahead electricity prices through a two-stage data-driven framework applied to long-term, high-resolution operational and market data. In the first stage, wind power generation is forecast using gradient boosting methods optimized via Bayesian techniques. In the second stage, the forecasted wind power is explicitly integrated into electricity price prediction models. Results demonstrate that incorporating wind forecasts substantially improves the representation of renewable-driven market dynamics, capturing the merit-order effect associated with low marginal-cost generation. While wind power forecasting achieves high short-term accuracy (<i>R</i>² ≈ 0.88), its integration into price forecasting reduces systematic bias and enhances explanatory power (<i>R</i>² ≈ 0.84) relative to standalone price models. The findings highlight the importance of renewable-aware forecasting frameworks for efficient market participation, improved bidding strategies, and effective integration of wind energy into day-ahead electricity markets.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-09-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149146796","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}

{"title":"Improving Energy Yield of Triple-Junction Solar Cells With a Parallel-Series Configuration","authors":"Austin Lin,&nbsp;Guoliang Wang,&nbsp;Suer Zhou,&nbsp;Jueming Bing,&nbsp;Christopher Bailey,&nbsp;Anita Wing Yi Ho-Baillie","doi":"10.1002/ente.70677","DOIUrl":"https://doi.org/10.1002/ente.70677","url":null,"abstract":"<p>Multijunction solar cells (MJSCs) offer power conversion efficiencies far beyond the 33.2% limit of single-junction solar cells, with a theoretical limit of over 50% for triple-junction cells. Monolithic (two-terminal) MJSCs involve series connections between the junctions. The simplicity of only requiring two electrical terminals comes with a cost of electric-current-matching. This is difficult to achieve in practice when the spectrum varies, thereby reducing performance in real-world conditions. While mechanically stacked MJSCs overcome this difficulty, they introduce additional electrical terminals (e.g., six terminals for mechanically stacked triple-junctions). Our proposed three-terminal (3T) parallel-series triple-junction solar cell offers a promising blend of series- and parallel-connected junctions. We show that this hybrid design demonstrates a theoretical efficiency advantage of nearly 20% over conventional monolithic tandems under overcast conditions and increases the annual theoretical energy yield by up to 9.6% in cloudy and high-latitude locations. This advantage remains when the junctions do not suffer from low (<span></span><math>\u0000 <mtext>≤</mtext>\u0000 <mn>2</mn>\u0000 <mo>×</mo>\u0000 <msup>\u0000 <mn>10</mn>\u0000 <mn>3</mn>\u0000 </msup>\u0000 <mo> </mo>\u0000 <mtext>Ω</mtext>\u0000 <msup>\u0000 <mi>cm</mi>\u0000 <mn>2</mn>\u0000 </msup></math>) <i>R</i>_SH and operate above 25 °C, and when the bottom junction is switched from silicon to germanium or metal halide perovskite. These results highlight that this hybrid design represents a promising and practical pathway toward more robust solar cells, delivering high efficiencies and energy yields under the nonideal spectral conditions faced in the real world.</p>","PeriodicalId":11573,"journal":{"name":"Energy technology","volume":"14 10","pages":""},"PeriodicalIF":3.6,"publicationDate":"2026-09-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/ente.70677","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149068247","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}