International Journal of Energy Research最新文献

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Nanoparticle-Assisted Bioethanol Production From Various Lignocellulosic Biomass 纳米颗粒辅助从各种木质纤维素生物质生产生物乙醇
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-24 DOI: 10.1155/er/1937931
Anju Singh, Beom Soo Kim
{"title":"Nanoparticle-Assisted Bioethanol Production From Various Lignocellulosic Biomass","authors":"Anju Singh,&nbsp;Beom Soo Kim","doi":"10.1155/er/1937931","DOIUrl":"https://doi.org/10.1155/er/1937931","url":null,"abstract":"<div>\u0000 <p>This study explored nanoparticle (NP)-assisted bioethanol production from seven lignocellulosic biomass (LCB) types: corn cob (<i>Zea mays</i>), wheat bran (<i>Triticum aestivum</i>), sugarcane (<i>Saccharum officinarum</i>), magnolia (<i>Magnolia grandiflora</i>), London plane (<i>Platanus acerifolia</i>), chestnut (<i>Castanea sativa</i>), and wire grass (<i>Aristida</i>). A deashing step was employed to address the high ash content of the biomass utilizing citric acid trisodium dihydrate salt followed by autoclaving at 120°C for 4 h. The treated biomass was hydrolyzed using cerium-doped iron oxide (CeFe<sub>3</sub>O<sub>4</sub>) nanoparticles (NPs). Corn cob hydrolysis without pretreatment yielded the highest concentrations of glucose (33.5 ± 0.82 g/L) and xylose (26.7 ± 0.98 g/L). Subsequently, fermentation with <i>Saccharomyces cerevisiae</i> produced the highest ethanol concentration of 28.8 ± 1.63 g/L and a productivity of 2.39 ± 0.13 g/L/h within 12 h. CeFe<sub>3</sub>O<sub>4</sub> NPs also, facilitated xylose metabolism and were recyclable. This method enhances biomass conversion efficiency, making bioethanol production more cost-effective and environmentally friendly.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/1937931","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144688248","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Latest Advances in Hydrometallurgical Recycling Routes for Primary Alkaline Batteries: A Review 碱性电池湿法冶金回收途径研究进展
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-24 DOI: 10.1155/er/1692732
Noelia Muñoz García, Beatriz Delgado Cano, José Luis Valverde, Michèle Heitz, Antonio Avalos Ramírez
{"title":"Latest Advances in Hydrometallurgical Recycling Routes for Primary Alkaline Batteries: A Review","authors":"Noelia Muñoz García,&nbsp;Beatriz Delgado Cano,&nbsp;José Luis Valverde,&nbsp;Michèle Heitz,&nbsp;Antonio Avalos Ramírez","doi":"10.1155/er/1692732","DOIUrl":"https://doi.org/10.1155/er/1692732","url":null,"abstract":"<div>\u0000 <p>This review presents the advances regarding the recovery and purification of zinc (Zn) and manganese (Mn) from alkaline batteries via hydrometallurgical processes. The characteristics of alkaline batteries are defined, and a comparison among leaching processes of spent batteries is presented, including the reactions that take place during the leaching process and the most influential operating parameters. Hydrometallurgical processes for recycling batteries arise as an advantageous alternative for spent batteries management. Data reported from the literature shows that alkaline and complexation-assisted leaching are more focused on the selective extraction of Zn. To attain a high Mn dissolution, an acid-reductive leaching is necessary, but this technique is not selective and simultaneously dissolves both Mn and Zn. To finish, metal separation and purification processes to recover high-quality metals from the leachates are discussed. Precipitation, solvent extraction, ion exchange resins, and electrodeposition are the main operations presented in this work. It has been proven that more than one separation or purification techniques are required to obtain the separation of these metals with high purity.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/1692732","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144688247","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Effects of Mileage on Engine Oil of an Aged Spark Ignition Retrofitted Engine Fueled by Gasoline and Compressed Natural Gas 以汽油和压缩天然气为燃料的老式火花点火改装发动机行驶里程对机油的影响
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-23 DOI: 10.1155/er/9989894
Michael J. Kyando, Justin W. Ntalikwa, Thomas Kivevele
{"title":"Effects of Mileage on Engine Oil of an Aged Spark Ignition Retrofitted Engine Fueled by Gasoline and Compressed Natural Gas","authors":"Michael J. Kyando,&nbsp;Justin W. Ntalikwa,&nbsp;Thomas Kivevele","doi":"10.1155/er/9989894","DOIUrl":"https://doi.org/10.1155/er/9989894","url":null,"abstract":"<div>\u0000 <p>This study examines the influence of engine oil on friction reduction in spark ignition (SI) engines, specifically analyzing the effects of mileage on oil viscosity, contaminants, and overall oil quality when employing gasoline versus compressed natural gas (CNG) as fuels. The maintenance of engine oil quality is essential for optimal performance, necessitating rigorous monitoring of parameters in accordance with manufacturer specifications. Although prior research has investigated CNG as a vehicle fuel, its impact on the performance of aged engine oil remains inadequately addressed. A 4-cylinder, 1.5 L SI engine, exhibiting 161,000 km of mileage, underwent 100 h of testing on gasoline followed by 100 h on CNG. Oil samples were collected at 20-h intervals for analysis of both local and foreign contaminants, oil performance metrics (total base number (TBN), total acid number (TAN), key additives (calcium, zinc, phosphorus), and viscosity at 40 and 100°C. Results revealed significant changes in oil properties: Oil viscosity decreased more with gasoline than CNG after 100 h at 40°C, silicon (Si) contaminants rose from 0 to 13 ± 1 ppm with gasoline compared to an increase from 0 to 4 ± 1 ppm with CNG; fuel dilution reached 1.5 ± 0.87% with gasoline, while CNG showed a 0.5% increase. Iron (Fe) content surged from 0 to 21 ± 0.5 ppm with gasoline and 11 ppm with CNG, while aluminum (Al) levels fluctuated minimally. TBN and TAN values demonstrated slight variations, indicating that CNG generally outperformed gasoline, with minimal differences in TBN relative to mileage.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/9989894","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681552","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Optimization Design of a Cost-Effective Surface-Mounted Permanent Magnet Generator Using Hybrid Ferrite and Rare-Earth Halbach Arrays 采用混合铁氧体和稀土Halbach阵列的高性价比表面贴装永磁发电机的优化设计
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-23 DOI: 10.1155/er/6634483
Z. M. Tun, P. Seangwong, P. Suthisopapan, A. Siritaratiwat, N. Fernando, S. Somkun, P. Khunkitti
{"title":"Optimization Design of a Cost-Effective Surface-Mounted Permanent Magnet Generator Using Hybrid Ferrite and Rare-Earth Halbach Arrays","authors":"Z. M. Tun,&nbsp;P. Seangwong,&nbsp;P. Suthisopapan,&nbsp;A. Siritaratiwat,&nbsp;N. Fernando,&nbsp;S. Somkun,&nbsp;P. Khunkitti","doi":"10.1155/er/6634483","DOIUrl":"https://doi.org/10.1155/er/6634483","url":null,"abstract":"<div>\u0000 <p>Surface-mounted permanent magnet (SPM) machines are highly capable for wind power generation due to their high output power, simple structural design, and effective thermal management. However, their heavy reliance on rare-earth magnets significantly increases the cost per unit power, limiting large-scale deployment. To address these challenges, this study proposes a cost-effective SPM wind generator featuring a hybrid NdFeB-ferrite Halbach PM array and flux barriers. The structural parameters are optimized using a genetic algorithm (GA) with sensitivity-based constraints. Finite element analysis (FEA) demonstrates that the proposed design reduces material cost by 18.2% and weight by 14% compared to conventional SPM generators, while delivering higher output power. Furthermore, cogging torque and torque ripple are reduced by 54% and 79%, respectively, enhancing its suitability for low-speed wind applications and ensuring smoother operation. Improved loss characteristics and efficiency further highlight the generator’s superior performance. These results position the proposed design as a cost-effective and practical solution for wind power generation.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/6634483","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144688017","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Type-3 Fuzzy Online Modeling and Robust Comprehensive Control and Energy Management of Variable Speed Wind Turbines 变速风力发电机组3型模糊在线建模及鲁棒综合控制与能量管理
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-23 DOI: 10.1155/er/7746281
Shu-Rong Yan, Wei Guo, Khalid A. Alattas, Ali Dokht Shakibjoo, Ebrahim Ghaderpour, Ardashir Mohammadzadeh
{"title":"Type-3 Fuzzy Online Modeling and Robust Comprehensive Control and Energy Management of Variable Speed Wind Turbines","authors":"Shu-Rong Yan,&nbsp;Wei Guo,&nbsp;Khalid A. Alattas,&nbsp;Ali Dokht Shakibjoo,&nbsp;Ebrahim Ghaderpour,&nbsp;Ardashir Mohammadzadeh","doi":"10.1155/er/7746281","DOIUrl":"https://doi.org/10.1155/er/7746281","url":null,"abstract":"<div>\u0000 <p>This study investigates the power control of variable-speed wind turbines (WTs) equipped with squirrel cage induction generators. We begin by developing an integrated nonlinear model of the WT, incorporating the crucial aspect of blade twisting angle. Our control strategy involves a primary controller that utilizes a reference signal generator. To enhance robustness against time-varying wind speeds and dynamic uncertainties, we design a robust complementary controller based on type-3 fuzzy logic systems (T3-FLSs). This complementary control, in conjunction with the reference signal generator, significantly improves WT performance by protecting against excessive loads, optimizing power extraction, and guiding the turbine to its desired operating point. To improve the performance of the T3-FLSs in the presence of non-Gaussian noises and disturbances, we employ a Correntropy Kalman filter for training. Furthermore, a compensator based on the H<i> </i><sub>∞</sub> theorem is designed to eliminate T3-FLS estimation errors, thereby boosting overall robustness. A key advantage of our proposed controller is its independence from specific wind speed conditions and turbine dynamics. Simulation results demonstrate its effectiveness for real-scale WTs across a range of rated wind speeds.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/7746281","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144688016","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Research and Application of Key Parameters of Entry Formed by Roof-Cutting in Inclined Coal Seam 倾斜煤层切顶巷道关键参数研究与应用
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-22 DOI: 10.1155/er/5644658
Enze Zhen, Shizhuo Dong, Yajun Wang, Mengxiang Wang, Chen Li, Fukang Du, Jie Chen, Jinhao Wen
{"title":"Research and Application of Key Parameters of Entry Formed by Roof-Cutting in Inclined Coal Seam","authors":"Enze Zhen,&nbsp;Shizhuo Dong,&nbsp;Yajun Wang,&nbsp;Mengxiang Wang,&nbsp;Chen Li,&nbsp;Fukang Du,&nbsp;Jie Chen,&nbsp;Jinhao Wen","doi":"10.1155/er/5644658","DOIUrl":"https://doi.org/10.1155/er/5644658","url":null,"abstract":"<div>\u0000 <p>The dynamic and complex stress concentration phenomenon during overburden structure stabilization after inclined coal seam mining significantly affects the surrounding rock stability of gob-side entries. To advance the application of entry formed by roof-cutting (EFR) technology in non-pillar mining, this study systematically investigates the optimal parameter selection for EFR in inclined coal seams. The research methodology includes selecting representative test mines under typical geological conditions and employing theoretical analysis, numerical simulation, and field experiments. First, according to the characteristics of EFR forming process, the design criteria of key parameters are given. Then, based on the swelling characteristics of collapsed rock and sliding instability conditions of overlying strata, theoretical formulas for roof-cutting height and angle are derived. Finally, a mechanical model of the inclined seam roof structure is established to analyze and determine roof and lateral support resistance, with corresponding support parameters proposed and validated through industrial tests. Results demonstrate that scientifically designed roof-cutting parameters, combined with the high pretightening force and constant resistance support of constant resistance and large deformation anchor cables (CRLDA), effectively maintain entry roof stability. Furthermore, two-way energy-gathering blasting technology successfully controls working face pressure, while the EFR gangue retention and temporary support system ensures proper entry formation. These findings confirm the feasibility of implementing EFR-based pillarless mining in inclined coal seams, offering significant theoretical and practical value for China’s safe and efficient mining operations.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/5644658","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
An Experimental and Theoretical Carbon Dioxide Capture-Based Investigation of Methyltrioctylammonium Trifluoromethanesulfonate Ionic Liquid 基于二氧化碳捕集的三氟甲磺酸甲基三辛基铵离子液体实验与理论研究
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-22 DOI: 10.1155/er/3887006
Hisham S. Bamufleh, Sami-ullah Rather, Aqeel Taimoor, Usman Saeed, Faheem A. Sheikh, Arshid M. Ali, Yahia A. S. AlHamed, Walid M. Alalayah, Ayaz Mohamad Nawaz
{"title":"An Experimental and Theoretical Carbon Dioxide Capture-Based Investigation of Methyltrioctylammonium Trifluoromethanesulfonate Ionic Liquid","authors":"Hisham S. Bamufleh,&nbsp;Sami-ullah Rather,&nbsp;Aqeel Taimoor,&nbsp;Usman Saeed,&nbsp;Faheem A. Sheikh,&nbsp;Arshid M. Ali,&nbsp;Yahia A. S. AlHamed,&nbsp;Walid M. Alalayah,&nbsp;Ayaz Mohamad Nawaz","doi":"10.1155/er/3887006","DOIUrl":"https://doi.org/10.1155/er/3887006","url":null,"abstract":"<div>\u0000 <p>An alarming elevation of anthropogenic carbon dioxide (CO<sub>2</sub>), primarily responsible for global warming and its drastic effects on climatic conditions, must be challenged on a priority basis. Various types of absorbents capture as much CO<sub>2</sub> as possible to minimize the harsh effects of environmental and climatic changes. In this study, one such compound, methyltrioctylammonium trifluoromethanesulfonate <span></span><math></math> ionic liquid (IL), was analyzed experimentally and theoretically. The COSMO-RS, a type of conductor-like screening model, is an advanced fast method to predict the thermo-physical properties of IL. It depends upon unimolecular, statistical thermodynamics, molecular structure, and conformation, which provides the required information for estimating interactions in ILs. The COSMO-RS, not dependent on data, coefficients, or parameters, was used to calculate the sigma surface, profile, and potential. These parameters are crucial for predicting high-absorbing CO<sub>2</sub> materials, such as ILILs. Spectroscopic methods, such as Fourier transform infrared spectroscopy (FTIR), proton nuclear magnetic resonance (<sup>1</sup>H NMR), and carbon-13 NMR (<sup>13</sup>C NMR), verified the structure confirmation. In addition, spectrochemical characterization of the IL was performed using FTIR, NMR, ultraviolet–visible (UV–Vis) spectroscopy, and fluorescence. The thermal integrity of IL was measured by thermogravimetric–differential thermal analysis (TGA-DTA) over the temperature range of 323–773 K in an oxygen ambiance with a ramp rate of 283 K/min. Due to its high potential for gas absorption, as confirmed by COSMO-RS calculations, IL was investigated for CO<sub>2</sub> absorption and desorption studies at 298 K and 4.5 MPa. The maximum CO<sub>2</sub> absorption obtained was ~ 6.0 mmol/g, performed at similar experimental conditions. The high uptake of CO<sub>2</sub> might be due to fluorinated anions, as CO<sub>2</sub> has a high affinity for fluoroalkyl groups. According to a hysteresis-based classification, the hysteresis formation during CO<sub>2</sub> absorption and desorption follows type H3, indicating the presence of both microporous and mesoporous characteristics in the sample. A detailed study of the excess Gibbs energy of sorption and the activity coefficient of the IL indicates a strong sorption capacity under moderate conditions.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/3887006","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673164","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
A Progressive Failure Model of Deep Rocks Based on Plastic Hardening and Dilatancy Characteristics 基于塑性硬化和剪胀特性的深部岩石递进破坏模型
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-22 DOI: 10.1155/er/5580114
Ze Liao, Peng Li, Yongjian Zhu, Genshui Wu, Yanchuan Ren, Huan Zhang, Ke Li
{"title":"A Progressive Failure Model of Deep Rocks Based on Plastic Hardening and Dilatancy Characteristics","authors":"Ze Liao,&nbsp;Peng Li,&nbsp;Yongjian Zhu,&nbsp;Genshui Wu,&nbsp;Yanchuan Ren,&nbsp;Huan Zhang,&nbsp;Ke Li","doi":"10.1155/er/5580114","DOIUrl":"https://doi.org/10.1155/er/5580114","url":null,"abstract":"<div>\u0000 <p>In order to study the progressive damage process and damage evolution law of deep rocks, conventional triaxial compression tests were conducted on sandstone, sandy mudstone, and mudstone under different loading conditions using the RMT-150C electro-hydraulic servo rock mechanics test system. Analyze the stress–strain characteristics of rocks, the deformation characteristics of progressive damage at different stages, and the strength characteristics of rocks under different loading pressures. Introduce equivalent plastic strain as a unified independent variable, analyze the nonlinear evolution law of rock strength parameters (<i>c</i> and <i>φ</i>) and expansion parameters (<i>ψ</i>) with equivalent plastic deformation, and establish a progressive rock damage model considering plastic hardening and expansion characteristics through rock strength parameters and expansion parameters. The results indicate that the progressive damage process of rocks can be divided into five stages: pore compression and density, linear elastic deformation, stable crack propagation, unstable crack propagation, and postpeak deformation. The strength of rock samples is mainly provided by the cohesive force parameter <i>c</i>, and the shear expansion angle <i>ψ</i> gradually increases and then stabilizes with the change of equivalent plastic strain <i>ε</i><sub>p</sub>. By fully considering the strain-softening and dilatancy characteristics of rock, a progressive damage evolution model for rock cohesion <i>c</i>, internal friction angle <i>φ</i>, and dilation angle <i>ψ</i> was theoretically developed. The accuracy of the model was verified through discussion, providing better theoretical guidance for practical rock engineering practice.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/5580114","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144673127","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Theoretical Kinetic Study of SF6 Decomposition via Reactions With H and OH Radicals SF6与H、OH自由基反应分解的理论动力学研究
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-22 DOI: 10.1155/er/2013830
Naeun Kim, Min Jung Lee, Hyunguk Kwon
{"title":"Theoretical Kinetic Study of SF6 Decomposition via Reactions With H and OH Radicals","authors":"Naeun Kim,&nbsp;Min Jung Lee,&nbsp;Hyunguk Kwon","doi":"10.1155/er/2013830","DOIUrl":"https://doi.org/10.1155/er/2013830","url":null,"abstract":"<div>\u0000 <p>A comprehensive kinetic model for SF<sub>6</sub> decomposition in combustion environments has been hindered by the lack of accurate thermodynamic and kinetic data, particularly for radical-driven high-temperature chemistry. This study provides ab initio thermodynamic and kinetic data for SF<sub>6</sub> decomposition via reactions with H and OH radicals, key species in combustion chemistry. The thermodynamic properties of various fluorinated species are provided in NASA polynomial format, allowing direct integration into kinetic simulation packages. Three major reaction pathways are examined using density functional theory (DFT) calculations are as follows: (1) SF<sub><i>n</i></sub> + H → SF<sub><i>n</i> − 1</sub> + HF, (2) SF<sub><i>n</i></sub> + OH → SOF<sub><i>n</i> − 1</sub> + HF, and (3) SOF<sub><i>n</i></sub> + OH → SO<sub>2</sub>F<sub><i>n</i> − 1</sub> + HF. These reactions are key steps in forming major products, such as SO<sub>2</sub> and SO<sub>2</sub>F<sub>2</sub>. Temperature-dependent rate constants are computed, and the corresponding Arrhenius parameters are determined. The decomposition of SF<sub><i>n</i></sub> species is more strongly promoted by OH radicals than by H radicals. SOF<sub><i>n</i></sub> species, formed from SF<sub><i>n</i></sub> and OH radicals, subsequently react with OH radicals to generate SO<sub>2</sub> and SO<sub>2</sub>F<sub>2</sub>. These findings provide a valuable thermodynamic and kinetic dataset that can be integrated into combustion or pyrolysis kinetic models to develop a detailed SF<sub>6</sub> decomposition model.</p>\u0000 </div>","PeriodicalId":14051,"journal":{"name":"International Journal of Energy Research","volume":"2025 1","pages":""},"PeriodicalIF":4.3,"publicationDate":"2025-07-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1155/er/2013830","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144681452","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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
Metal-Organic Frameworks Coated Cellulose Nanofibers for Localized Carbon Dioxide Capture 金属有机框架涂层纤维素纳米纤维的局部二氧化碳捕获
IF 4.3 3区 工程技术
International Journal of Energy Research Pub Date : 2025-07-21 DOI: 10.1155/er/9924588
Nasir Shezad, Pawan Kumar, Alok Patel, Leonidas Matsakas, Farid Akhtar
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