Next Energy最新文献

{"title":"Measurement and evaluation of anisotropic thermophysical parameters of lithium-ion battery electrode stack: An experimental and numerical study","authors":"Muhammad Wasim Tahir ,&nbsp;Muhammad Yousaf Arshad ,&nbsp;Huma Hussain ,&nbsp;Nam Nghiep Tran ,&nbsp;Anam Suhail Ahmad","doi":"10.1016/j.nxener.2025.100315","DOIUrl":"10.1016/j.nxener.2025.100315","url":null,"abstract":"<div><div>The development of advanced electrode materials and their complex formulations has made it increasingly difficult to obtain accurate thermophysical parameters of the active zone in lithium-ion cells. These parameters, such as thermal conductivity and specific heat capacity, are crucial for optimizing the performance and safety of the battery. Conventional methods for obtaining these measurements often require expensive and sophisticated laboratory equipment, which limits accessibility and ease of use. An innovative hybrid approach is presented for measuring the thermophysical parameters of the active zone in lithium-ion batteries. This method combines experimental measurements with numerical simulations to determine anisotropic thermal conductivity, specific heat capacity, and the density of the electrode stack. A key aspect of this approach is the use of low-viscosity liquid paraffin to simulate the effects of the electrolyte. The through-plane and in-plane thermal conductivities of both wetted and dry specimens are measured, while the specific heat capacity is approximated numerically. This simple, cost-effective technique eliminates the need for specialized and expensive lab equipment. The through-plane thermal conductivity of the wetted specimen was found to be 2 orders of magnitude greater than that of the dry specimen, while the difference between the in-plane thermal conductivities of the wetted and dry specimens was negligible. The errors in the measured values of through-plane and in-plane thermal conductivities were approximately 4% and 2%, respectively, while the numerically approximated specific heat capacity showed an error of around 2.5%. All measured parameters were found to be within reported ranges. A 3D lumped thermal model incorporating the measured thermophysical parameters was simulated using the commercial software ANSYS Fluent to examine the effects of thermal anisotropy. The simulation results were validated against experimental data and were found to be in good agreement.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100315"},"PeriodicalIF":0.0,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144115363","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Revealing ZnMn3O7 as an advanced cathode material for Zn-ion batteries","authors":"Keerthana A.G.,&nbsp;Adarsh Sunilkumar,&nbsp;Neeraja Nair,&nbsp;Shantikumar V. Nair,&nbsp;Senthilkumar Baskar","doi":"10.1016/j.nxener.2025.100307","DOIUrl":"10.1016/j.nxener.2025.100307","url":null,"abstract":"<div><div>Rechargeable aqueous Zn-Mn batteries have emerged as a promising candidate for grid-scale energy storage application, offering high specific energy, cost-effectiveness, environmental sustainability, and superior safety characteristics. ZnMn₃O₇ (ZMO) has recently gained attention as a potential cathode for aqueous energy storage systems, attributed to its layered structure, abundant manganese redox centers, and intrinsic vacancy sites that enable efficient ion diffusion. However, direct synthesis of ZMO remains challenging, as it preferentially transforms into the Zn-deficient spinel structure (Zn_0.75Mn_0.25)Mn₂O₄. In this study, we approach a synthesis method for ZMO via chemical ion-exchange method, employing Na₂Mn₃O₇ (NMO) as the starting precursor. The process involves a chemical ion-exchange reaction facilitated by 5 M ZnSO₄ as the ionic solution, enabling efficient cation exchange at the vacancy sites of Na₂Mn₃O₇. Hydrated ZnMn₃O₇.3H₂O was prepared and subjected to controlled calcination within a temperature range of 100–600 °C to study its phase transitions and structural evolution. This investigation provided valuable insights into its thermal stability and the transformation mechanisms responsible for forming the anhydrous ZnMn₃O₇ phase. The ion-exchange mechanism was systematically studied through structural and morphological characterizations at different calcination stages. Electrochemical testing of ZMO with 1 M Zn(CF₃SO₃)₂ + 0.1 M MnSO₄ as the electrolyte demonstrated outstanding cycling stability, delivering a reversible discharge capacity of around 140 mAh g⁻¹ and 99% Coulombic efficiency over 100 cycles at a 1 C rate. These findings highlight the material's promise as a high-performance cathode for advanced energy storage applications.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100307"},"PeriodicalIF":0.0,"publicationDate":"2025-05-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107862","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Controllable Ni-doping and conformal NiO coating of porous flower-like VO2 clusters for high-performance symmetric supercapacitors","authors":"Mingxing Zhang,&nbsp;Huang Zhang,&nbsp;Yu Li,&nbsp;Fan Wang,&nbsp;Huihua Li,&nbsp;Jiawei Zhang,&nbsp;Minghua Chen","doi":"10.1016/j.nxener.2025.100304","DOIUrl":"10.1016/j.nxener.2025.100304","url":null,"abstract":"<div><div>With the growing demand for high-performance energy storage devices, vanadium dioxide (VO₂) has been emerged as a promising electrode material for supercapacitors due to its unique physicochemical properties and abundant resources. However, the intercalation-pseudocapacitive mechanism and solubility in aqueous electrolytes present challenges to achieving high specific capacitance and cycling stability. This study demonstrates a synergetic modification strategy by introducing nickel dopants and a protective NiO layer to enhance the performance of VO₂ electrode materials via a solvothermal method combined with atomic layer deposition (ALD) technology. The synergistic effect of nickel doping ratio and NiO layer thickness on electrochemical performance is systematically investigated. Results show that nickel doping significantly improves the conductivity and activates additional electrochemical sites, enhancing both rate capability and specific capacitance. The conformal NiO layer coating effectively mitigates the VO₂ dissolution, leading to improved cycling stability. A quasi-solid-state symmetric supercapacitor using the optimized Ni-VO2@NiO200 composite electrodes delivers a maximum energy density of 4.03 Wh kg⁻¹ and maintains 72.8% capacitance retention after 2500 cycles, significantly outperforming pristine VO₂. These findings demonstrate the feasibility of VO₂ with structural modification as a high-performance electrode material for supercapacitors, offering valuable insights for future material design in electrochemical energy storage applications.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100304"},"PeriodicalIF":0.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107861","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Enhancing solar irradiance prediction precision: A stacked ensemble learning-based correction paradigm","authors":"Bo Tian ,&nbsp;Ningbo Wang ,&nbsp;Yuanxin Lin ,&nbsp;Shuangquan Shao","doi":"10.1016/j.nxener.2025.100306","DOIUrl":"10.1016/j.nxener.2025.100306","url":null,"abstract":"<div><div>Accurate solar irradiance prediction is critical for ensuring reliable control of solar energy systems. This study proposes a stacked ensemble learning model to correct daily solar irradiance forecasts derived from numerical weather prediction (NWP). The ensemble framework integrates 5 base models—multiple linear regression (MLR), artificial neural network (ANN), K-nearest neighbors (KNNs), random forest (RF), and support vector regression (SVR)—using stacking technology, with a meta-model applied for final prediction refinement. Experimental results demonstrate significant improvements over the original NWP forecasts: the corrected model reduces the mean absolute error (MAE) and root mean square error (RMSE) by 47% and 41%, respectively, while increasing the R² determination coefficient by 11%. The proposed approach effectively enhances the accuracy and reliability of traditional solar irradiance prediction models, offering a novel and practical solution for solar energy forecasting. This work holds substantial value for optimizing solar power system operations and advancing renewable energy utilization.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100306"},"PeriodicalIF":0.0,"publicationDate":"2025-05-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144107860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Exploring the power of light for methane conversion: Mechanism, advance, and prospective","authors":"Yuqiao Li ,&nbsp;Lipeng Luo ,&nbsp;Jing Zhang ,&nbsp;Gazi Hao ,&nbsp;Wei Jiang ,&nbsp;Guigao Liu","doi":"10.1016/j.nxener.2025.100274","DOIUrl":"10.1016/j.nxener.2025.100274","url":null,"abstract":"<div><div>As the “holy grail” of catalysis, the conversion of CH₄ has attracted substantial interest. The quest for efficient conversion pathways for CH₄ is of paramount importance for climate change mitigation and the advancement of energy utilization. Solar-driven CH₄ conversion is deemed a promising avenue, as it concurrently diminishes greenhouse gas emissions and promotes the generation of sustainable energy resources. This paper reviews the latest advancements in solar-driven CH₄ conversion, encompassing an in-depth analysis of the underlying mechanisms for methane nonoxidative coupling, partial oxidation, steam reforming, and dry reforming. It also highlights state-of-the-art technologies in catalyst development for these reactions. This study aims to provide valuable insights into the progression of solar-driven CH₄ conversion technology, thereby promoting its widespread application in energy conversion and storage.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100274"},"PeriodicalIF":0.0,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143821187","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A novel 3D-printed electrochemical cell for operando synchrotron experiments","authors":"Niklas H. Deissler ,&nbsp;Valentin Vinci ,&nbsp;Jon Bjarke Valbæk Mygind ,&nbsp;Xianbiao Fu ,&nbsp;Shaofeng Li ,&nbsp;Jakob Kibsgaard ,&nbsp;Jakub Drnec ,&nbsp;Ib Chorkendorff","doi":"10.1016/j.nxener.2025.100279","DOIUrl":"10.1016/j.nxener.2025.100279","url":null,"abstract":"<div><div>Electrochemical processes are often accompanied by significant transformations at the electrode-electrolyte interface, such as the formation of a solid electrolyte interphase or surface reconstruction. Studying these dynamic changes requires operando characterization techniques to overcome the limitations of ex-situ methods. Here, we present a novel, versatile electrochemical cell optimized for operando synchrotron X-ray studies of the lithium-mediated nitrogen reduction reaction. The cell integrates a single-crystal working electrode with a gas diffusion counter electrode, enabling enhanced faradaic efficiencies (FEs) and operando measurements under conditions that closely resemble scalable flow systems. The cell design improves N₂ availability and suppresses undesirable counter electrode reactions through the hydrogen oxidation reaction, achieving FEs of up to 37% for ammonia production. Fabrication by 3D-printing polyether ether ketone allows for complex electrolyte flow geometries while maintaining minimal X-ray background interference, critical for X-ray-based techniques. The combination of single-crystal electrodes and optimized flow conditions offers a promising platform for investigating fundamental electrochemical processes under realistic and scalable conditions.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100279"},"PeriodicalIF":0.0,"publicationDate":"2025-04-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143824177","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Non-oxidative thermal decomposition and thermo-kinetics study of mangrove biomass for bioenergy production","authors":"S. M. Zakir Hossain ,&nbsp;Mohamed Bin Shams ,&nbsp;Almaha F. Alfaihani ,&nbsp;Muneera A. Alkowari ,&nbsp;Tefla A. Alromaihi ,&nbsp;Gus Ali Nur Rahman ,&nbsp;Wasim Ullah Khan ,&nbsp;Humood Abdulla Ahmed Naser ,&nbsp;Mohammad Mozahar Hossain ,&nbsp;Shaikh Abdur Razzak","doi":"10.1016/j.nxener.2025.100272","DOIUrl":"10.1016/j.nxener.2025.100272","url":null,"abstract":"<div><div>Mangroves are well-known for their tremendous capacity to fix CO₂ and energy potential. In this study, the thermal characteristics of 3 mangrove biomass (leaf, stem, and roots) of natural and replanted gray mangrove (species: <em>Avicenna marina)</em> reserves have been investigated in an inert medium and compared to assess their fuel production potential. The chemical composition, physiochemical properties, and thermal behavior by proximate and ultimate analyses and thermogravimetric analysis (TGA) were investigated for this. Transplanted stem biomass showed the least ash content, with higher volatile contents when compared to other biomass samples. The higher heating value (HHV) in natural mangrove stems was 16.29 MJ/kg, with a calorific value (CV) of 16.58 MJ/kg, whereas the HHV in replanted mangrove stems was higher at 17.50 MJ/kg, with a CV of 22.41 MJ/kg. The apparent kinetic parameters, including activation energy and frequency factor, were estimated by fitting the experimental data to the n^th-order rate model. The apparent activation energies ranged from 73.2 to 78.5 kJ/mol for leaves, 96.0 to 97.3 kJ/mol for the stem, and 71.5 to 94.5 kJ/mol for roots, which are less than other mangrove species, indicating gray mangrove biomass was more reactive. Statistical analysis (e.g., Pearson correlation, <em>t</em>-test) indicated strong similarities and negligible differences between the experimental and simulation results. Several environmental factors (e.g., pH and salinity of soil) at study locations were investigated, suggesting higher HHV and carbon content of replanted mangrove stem biomass was noticeable due to higher salinity. Overall, this article promotes the UN's sustainable development goals by highlighting the potential of mangrove biomass as a catalyst for the sustainable development of energy, precious materials, and climate change.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100272"},"PeriodicalIF":0.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143808767","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Thermal management for optimal performance of polymer electrolyte membrane unitized regenerative fuel cells","authors":"Mythy Tran,&nbsp;Ayodeji Demuren","doi":"10.1016/j.nxener.2025.100271","DOIUrl":"10.1016/j.nxener.2025.100271","url":null,"abstract":"<div><div>Hydrogen is an excellent carrier for energy storage and can be produced from various green and renewable sources. However, the cost of producing hydrogen and converting it to useful energy is much higher than fossil fuel and traditional energy generation and storage systems. Unitized regenerative fuel cells (URFC) maximize utilization of high-cost cells and their components, thus, lowering system capital cost. Improving the URFC efficiency is an effective way to lower its operating cost. This study evaluates utilization of waste heat during operation and recovery strategy to improve system efficiency of Proton Exchange Membrane (PEM) URFC. A COMSOL Multiphysics 3-D model of 25 cm² 5-cell PEM URFC stack is used to simulate the URFC operation. The results show that the employed cooling strategy can recover 76% and 78% of waste heat when the URFC operates in fuel cell mode and in reverse water electrolyzer mode, respectively, and the PEM URFC round-trip efficiency can thereby be improved from 32% to 81%.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143815386","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"A review of biomass thermochemical gasification: Toward solar hybridized processes for continuous and controllable fuel production","authors":"Axel Curcio ,&nbsp;Sylvain Rodat ,&nbsp;Valéry Vuillerme ,&nbsp;Stéphane Abanades","doi":"10.1016/j.nxener.2025.100277","DOIUrl":"10.1016/j.nxener.2025.100277","url":null,"abstract":"<div><div>Gasification of carbonaceous feedstocks into value-added syngas is a mature chemical process, developed at industrial scale for the production of chemicals and liquid fuels. Biomass gasification could open the path toward renewable fuel production, waste valorization, and carbon capture, but a fraction of the initial feedstock is burnt for process heat. Hence, allothermal solar heating is an attractive option for a clean and efficient production of syngas, enabling solar energy storage under a chemical form. Solar gasification potentially converts the whole feedstock mass while the produced syngas is not contaminated by combustion by-products and the high temperatures help to ensure high syngas yields with minimized char and tars production. Such results were however obtained under favorable solar power input conditions. In practice, the solar power fluctuations and intermittency must be managed carefully, with a control of the reactor inputs round the clock for stable syngas production. This review aims to provide a state-of-the-art on the variety of scientific topics involved in developing a stable and controllable solar gasification process, and it further addresses the challenges of hybridized solar-autothermal processes. Conventional gasification is first tackled, unraveling the historical background and current applications of the process. Associated chemical mechanisms are described, with some modeling considerations. Concentrated solar power technologies are then described, with a focus on thermochemical applications and existing solar gasification technologies. Finally, the methods to smoothen the effects of fluctuating solar power availability on solar syngas production are assessed, including thermal heat storage and solar-autothermal hybridization for continuous day-night operation. The implementation of dynamic control methods is addressed, to assess the practical application of control strategies, paving the way toward continuous solar fuels production.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100277"},"PeriodicalIF":0.0,"publicationDate":"2025-04-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143800659","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Hydrogen production technologies from water decomposition: A review","authors":"Wu Zhou ,&nbsp;Shuangjiang Li ,&nbsp;Yang Yang ,&nbsp;Jiachao Yao ,&nbsp;Pengfei Chen ,&nbsp;Jian Liu ,&nbsp;Yang Wu ,&nbsp;Zhi Li ,&nbsp;Fangming Jin","doi":"10.1016/j.nxener.2025.100270","DOIUrl":"10.1016/j.nxener.2025.100270","url":null,"abstract":"<div><div>Hydrogen is a promising energy carrier in the future, which can help improve air quality and enhance energy security. Hydrogen production mainly relies on fossil fuels (natural gas and coal). Hydrogen production from fossil fuels can result in the significant emissions of carbon dioxide, aggravating the global greenhouse effect. At the same time, fossil fuels are non-renewable, and the use of fossil fuels to produce hydrogen further exacerbates the crisis of fossil fuel shortages. Fortunately, water, as a carbon-free and hydrogen-rich renewable resource, offers one of the best solutions to replace hydrogen production from fossil fuels through its decomposition. Furthermore, hydrogen production by decomposition of water is vital for the realization of the sustainable development. In this paper, we review the current mainstream technologies (electrolysis, pyrolysis and photolysis) for hydrogen production by decomposing water. The principles, processes, advantages and disadvantages and the latest progresses of these technologies are also discussed. At last, this paper provides a summary and outlook on water decomposition for hydrogen production, and thinks that the yield, energy efficiency and cost of hydrogen production from water decomposition are largely dependent on the development of new materials and the improvement of existing materials. Moreover, utilizing renewable energy to decompose water for hydrogen production offers the possibility of achieving the hydrogen economy.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"8 ","pages":"Article 100270"},"PeriodicalIF":0.0,"publicationDate":"2025-04-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143777005","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}