Pub Date : 2025-10-01DOI: 10.1016/j.nxener.2025.100451
Reza Feizi , Fatemeh Razi Astaraei , Mohammad Sameti
Perovskite solar cells (PSCs) represent a significant advancement in photovoltaic technology, attracting considerable attention owing to their outstanding power conversion efficiency (PCE). However, their path to widespread commercialization is hindered by challenges such as low stability and the rapid degradation of the perovskite active layer. To address these issues, covalent organic frameworks (COFs) have emerged as an innovative class of materials known for their low density, high porosity, and good stability, rendering them suitable for integration into PSCs. In these solar cells, COFs enhance the crystalline quality of the perovskite layer, align energy levels, and reduce recombination losses, thereby improving both efficiency and stability. This review begins with a bibliometric analysis, examining notable keywords, pioneer countries, and publication growth. It then explores the impact of COFs integrated into key components and interfaces of PSCs, including the perovskite active layer, the hole and electron transport layers (HTL/ETL), and their critical interfaces. The focus is on improvements in structural integrity, PCE gains, and stability enhancements. Additionally, the review elucidates processes behind these beneficial effects and offers insights into how COFs can effectively address current limitations faced by PSCs.
{"title":"Perovskite solar cells: Efficiency and stability enhancement using covalent organic frameworks","authors":"Reza Feizi , Fatemeh Razi Astaraei , Mohammad Sameti","doi":"10.1016/j.nxener.2025.100451","DOIUrl":"10.1016/j.nxener.2025.100451","url":null,"abstract":"<div><div>Perovskite solar cells (PSCs) represent a significant advancement in photovoltaic technology, attracting considerable attention owing to their outstanding power conversion efficiency (PCE). However, their path to widespread commercialization is hindered by challenges such as low stability and the rapid degradation of the perovskite active layer. To address these issues, covalent organic frameworks (COFs) have emerged as an innovative class of materials known for their low density, high porosity, and good stability, rendering them suitable for integration into PSCs. In these solar cells, COFs enhance the crystalline quality of the perovskite layer, align energy levels, and reduce recombination losses, thereby improving both efficiency and stability. This review begins with a bibliometric analysis, examining notable keywords, pioneer countries, and publication growth. It then explores the impact of COFs integrated into key components and interfaces of PSCs, including the perovskite active layer, the hole and electron transport layers (HTL/ETL), and their critical interfaces. The focus is on improvements in structural integrity, PCE gains, and stability enhancements. Additionally, the review elucidates processes behind these beneficial effects and offers insights into how COFs can effectively address current limitations faced by PSCs.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100451"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145332209","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}
Pub Date : 2025-10-01DOI: 10.1016/j.nxener.2025.100460
Heth Sethia, Abhishek Priyam
The use of hydrogen fuel cells has greatly increased in recent years. Advanced fuel cells are efficiently addressing the needs of portable power, backup power, and even modular power fuel cells. It has also been used to power cars and other vehicles. Hydrogen fuel cells are now specialized under the name portable power modules to highlight their newly discovered vehicle-mountable outboard engines. This review also targets the other issues of handling and encasing hydrogen fuel in specialized containers. All these gaps that revolve around the modern world are intertwined with one advancing vehicle engine to fix the ever-increasing global warming levels. Challenges faced by cost, storage, and infrastructure barriers are addressed, in addition to technological advancements in catalyst effectiveness, membrane technology, and hydrogen supply logistics. The report ends with a visionary outlook, outlining research avenues to drive the shift to a hydrogen economy.
{"title":"Review on hydrogen fuel cells as an alternative fuel","authors":"Heth Sethia, Abhishek Priyam","doi":"10.1016/j.nxener.2025.100460","DOIUrl":"10.1016/j.nxener.2025.100460","url":null,"abstract":"<div><div>The use of hydrogen fuel cells has greatly increased in recent years. Advanced fuel cells are efficiently addressing the needs of portable power, backup power, and even modular power fuel cells. It has also been used to power cars and other vehicles. Hydrogen fuel cells are now specialized under the name portable power modules to highlight their newly discovered vehicle-mountable outboard engines. This review also targets the other issues of handling and encasing hydrogen fuel in specialized containers. All these gaps that revolve around the modern world are intertwined with one advancing vehicle engine to fix the ever-increasing global warming levels. Challenges faced by cost, storage, and infrastructure barriers are addressed, in addition to technological advancements in catalyst effectiveness, membrane technology, and hydrogen supply logistics. The report ends with a visionary outlook, outlining research avenues to drive the shift to a hydrogen economy.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100460"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145332342","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}
Pub Date : 2025-10-01DOI: 10.1016/j.nxener.2025.100463
Mohammad Istiaque Hossain , Puvaneswaran Chelvanathan , Amith Khandakar , Kevin Thomas , Brahim Aissa
We have developed crystalline thin metal oxide films (MoOx, NiOx) as hole transport layers with varying stoichiometries for perovskite solar cells applications. Reactive e-beam evaporation was employed to grow the oxides by vaporizing pure metals at different oxygen pressures, followed by thermal annealing at 200 °C. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy, contact angle measurements, X-ray diffraction (XRD), and variable angle spectroscopic ellipsometry were used to analyze the grown films. The XRD findings confirm the presence of crystalline phases in the NiOx thin films when processed at 200 °C, particularly in the most oxygen-rich films (deposited at 2e-4 Torr). In contrast, the MoOx layers exhibit an amorphous phase. Field emission SEM results confirm the production of dense and homogeneous films across the substrate's surface, free from cracks and pinholes. A numerical model utilizing the measured refractive indices suggests that optimizing the device design with these thin films can achieve power conversion efficiencies of over 25%.
{"title":"Advancing MoOx and NiOx as hole transport layers for perovskite solar cells: Experimental and theoretical insights","authors":"Mohammad Istiaque Hossain , Puvaneswaran Chelvanathan , Amith Khandakar , Kevin Thomas , Brahim Aissa","doi":"10.1016/j.nxener.2025.100463","DOIUrl":"10.1016/j.nxener.2025.100463","url":null,"abstract":"<div><div>We have developed crystalline thin metal oxide films (MoOx, NiOx) as hole transport layers with varying stoichiometries for perovskite solar cells applications. Reactive e-beam evaporation was employed to grow the oxides by vaporizing pure metals at different oxygen pressures, followed by thermal annealing at 200 °C. Scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy, contact angle measurements, X-ray diffraction (XRD), and variable angle spectroscopic ellipsometry were used to analyze the grown films. The XRD findings confirm the presence of crystalline phases in the NiO<sub>x</sub> thin films when processed at 200 °C, particularly in the most oxygen-rich films (deposited at 2e-4 Torr). In contrast, the MoOx layers exhibit an amorphous phase. Field emission SEM results confirm the production of dense and homogeneous films across the substrate's surface, free from cracks and pinholes. A numerical model utilizing the measured refractive indices suggests that optimizing the device design with these thin films can achieve power conversion efficiencies of over 25%.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100463"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145332203","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}
Pub Date : 2025-10-01DOI: 10.1016/j.nxener.2025.100438
Madavena Kumaraswamy, Kanasottu Anil Naik
Partial shading and environmental variations significantly reduce the power output and efficiency of photovoltaic (PV) systems, posing challenges for conventional maximum power point tracking (MPPT) methods that suffer from slow convergence, local maxima trapping, and high computational cost. To address these limitations, this paper proposes an image encryption-inspired PV array static reconfiguration technique based on the Kolakoski sequence transform (KST), combined with data-driven regression-based MPPT controllers. The proposed KST method minimizes current mismatches by intelligently redistributing shaded modules, while decision tree (DT), support vector machine (SVM), neural network (NN), and machine learning (ML) regression methods are employed to determine the optimal duty cycle for a SEPIC converter under varying irradiance conditions. The system is evaluated on both symmetrical 5 × 5 arrays and unsymmetrical 4 × 6 arrays, including experimental validation using a 250 Wp standalone PV setup. In MPPT performance, the regression-based controllers attain GMP enhancements of 47.09%, 45.14%, 27.27%, 13.62%, and 10.73% for 5 × 5 arrays and 74.96%, 44.11%, 40.14%, 18.29%, and 7.15% for 4 × 6 arrays under diverse environmental conditions. The reconfiguration technique achieves global maximum power (GMP) improvements of 32.79%, 14.98%, and 10.15% across various shading scenarios using 9 × 9 arrays. Notably, the proposed KST integrated with SVM regression-based MPPT delivers up to 68% GMPP enhancement, with >98.5% efficiency, convergence <0.35 s, and ripple ≤1.5%, validated across dynamic shading, temperature variation, rapid irradiance changes, and hotspot conditions. These results confirm the robustness, adaptability, and real-time suitability of the proposed KST integrated with ML-based Regression MPPT approach for practical PV optimization.
{"title":"Data-driven regression controller-based MPPT with image encryption inspired solar PV array reconfiguration under partial shading conditions","authors":"Madavena Kumaraswamy, Kanasottu Anil Naik","doi":"10.1016/j.nxener.2025.100438","DOIUrl":"10.1016/j.nxener.2025.100438","url":null,"abstract":"<div><div>Partial shading and environmental variations significantly reduce the power output and efficiency of photovoltaic (PV) systems, posing challenges for conventional maximum power point tracking (MPPT) methods that suffer from slow convergence, local maxima trapping, and high computational cost. To address these limitations, this paper proposes an image encryption-inspired PV array static reconfiguration technique based on the Kolakoski sequence transform (KST), combined with data-driven regression-based MPPT controllers. The proposed KST method minimizes current mismatches by intelligently redistributing shaded modules, while decision tree (DT), support vector machine (SVM), neural network (NN), and machine learning (ML) regression methods are employed to determine the optimal duty cycle for a SEPIC converter under varying irradiance conditions. The system is evaluated on both symmetrical 5 × 5 arrays and unsymmetrical 4 × 6 arrays, including experimental validation using a 250 Wp standalone PV setup. In MPPT performance, the regression-based controllers attain GMP enhancements of 47.09%, 45.14%, 27.27%, 13.62%, and 10.73% for 5 × 5 arrays and 74.96%, 44.11%, 40.14%, 18.29%, and 7.15% for 4 × 6 arrays under diverse environmental conditions. The reconfiguration technique achieves global maximum power (GMP) improvements of 32.79%, 14.98%, and 10.15% across various shading scenarios using 9 × 9 arrays. Notably, the proposed KST integrated with SVM regression-based MPPT delivers up to 68% GMPP enhancement, with >98.5% efficiency, convergence <0.35 s, and ripple ≤1.5%, validated across dynamic shading, temperature variation, rapid irradiance changes, and hotspot conditions. These results confirm the robustness, adaptability, and real-time suitability of the proposed KST integrated with ML-based Regression MPPT approach for practical PV optimization.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100438"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220147","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}
Pub Date : 2025-10-01DOI: 10.1016/j.nxener.2025.100440
S. Kalaiselvam , A. Lakshmi Kanthan Bharathi , A. Ameelia Roseline
This study investigates the efficiency of a multi-walled carbon nanotube-infused lauric acid (MWCNT-LA) heatsink with U-tube heat pipes filled with n-pentane for electronic processor cooling. Experimental evaluations were conducted under varying heat loads and filling ratios to assess processor stability and energy efficiency. The investigation focused on energy savings, the thermal resistance of different heat pipe-assisted heatsink modules with multi-walled carbon nanotube-infused lauric acid phase change material, with its regeneration time, and optimal heat pipe filling ratio. Results showed that the MWCNT-LA heat sink module with 50% n-pentane filling performed best under higher heat loads, achieving the lowest thermal resistance of 0.63 °C/W at 50% filling ratio and 75% heat load. This design was 3.58 times more effective than the unfilled heat pipe version and achieved 78% energy savings with minimal cooling fan energy consumption. The developed heat sink design improves thermal management by utilizing latent heat storage and enhancing heat transport efficiency through the heat pipe, thus optimizing thermal performance, heat dissipation, and temperature regulation. These improvements increased the operational reliability and energy efficiency of processors in data center cooling applications.
{"title":"Enhanced thermal management and energy efficiency in electronic processor cooling using MWCNT-LA NEPCM heat sink with U-tube heat pipes","authors":"S. Kalaiselvam , A. Lakshmi Kanthan Bharathi , A. Ameelia Roseline","doi":"10.1016/j.nxener.2025.100440","DOIUrl":"10.1016/j.nxener.2025.100440","url":null,"abstract":"<div><div>This study investigates the efficiency of a multi-walled carbon nanotube-infused lauric acid (MWCNT-LA) heatsink with U-tube heat pipes filled with n-pentane for electronic processor cooling. Experimental evaluations were conducted under varying heat loads and filling ratios to assess processor stability and energy efficiency. The investigation focused on energy savings, the thermal resistance of different heat pipe-assisted heatsink modules with multi-walled carbon nanotube-infused lauric acid phase change material, with its regeneration time, and optimal heat pipe filling ratio. Results showed that the MWCNT-LA heat sink module with 50% n-pentane filling performed best under higher heat loads, achieving the lowest thermal resistance of 0.63<!--> <!-->°C/W at 50% filling ratio and 75% heat load. This design was 3.58 times more effective than the unfilled heat pipe version and achieved 78% energy savings with minimal cooling fan energy consumption. The developed heat sink design improves thermal management by utilizing latent heat storage and enhancing heat transport efficiency through the heat pipe, thus optimizing thermal performance, heat dissipation, and temperature regulation. These improvements increased the operational reliability and energy efficiency of processors in data center cooling applications.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100440"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220149","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}
The gradual electrification of the road transport sector has raised a lot of concerns about the reliability of battery electric vehicles (BEVs). Many potential customers not only lack awareness about the benefits of electrification, total costs and charging infrastructure, but are especially worried about battery lifetime and vehicle performance, information which manufacturers often struggle to provide accurately. This work proposes a methodology to predict BEV lifetime based on complete vehicle simulation employing a physics-based, electrochemical-thermal-aging battery model. In addition, the model calculates the performance degradation over time in terms of energy consumption, range, battery charging efficiency and vehicle acceleration. Physics-based models are harder to develop and computationally costlier than data-driven models. However, once developed, they can be used in a much broader range of conditions and, more importantly, be applied also when no adequate on-road data are yet available. The proposed methodology is applied in a case study of BEV taxis in the city of Thessaloniki, Greece. In particular, the impact of battery preheating prior to charging is evaluated by simulation, showing that preheating could increase lifetime and mileage of BEV taxis by 14% in South European climates. In another application, it is calculated that mid-shift fast-charging could even double the life of the battery compared to fast-charging only before shift change, leading simultaneously to improved performance when compared within the same operational period. Such results could support battery and vehicle manufacturers as well as fleet managers to guide BEV taxi owners towards optimal charging behavior. The modeling approach presented in this paper can be further extended to other vehicle groups, environmental, driving and charging conditions, making it a powerful tool not only for manufacturers, but also for policymakers and charging infrastructure companies.
{"title":"Operational and environmental impacts on battery lifetime and vehicle performance: A case study for electric taxis","authors":"Zisis Lampropoulos , Spyridon Spyridopoulos , Traianos Karageorgiou , Grigorios Koltsakis","doi":"10.1016/j.nxener.2025.100441","DOIUrl":"10.1016/j.nxener.2025.100441","url":null,"abstract":"<div><div>The gradual electrification of the road transport sector has raised a lot of concerns about the reliability of battery electric vehicles (BEVs). Many potential customers not only lack awareness about the benefits of electrification, total costs and charging infrastructure, but are especially worried about battery lifetime and vehicle performance, information which manufacturers often struggle to provide accurately. This work proposes a methodology to predict BEV lifetime based on complete vehicle simulation employing a physics-based, electrochemical-thermal-aging battery model. In addition, the model calculates the performance degradation over time in terms of energy consumption, range, battery charging efficiency and vehicle acceleration. Physics-based models are harder to develop and computationally costlier than data-driven models. However, once developed, they can be used in a much broader range of conditions and, more importantly, be applied also when no adequate on-road data are yet available. The proposed methodology is applied in a case study of BEV taxis in the city of Thessaloniki, Greece. In particular, the impact of battery preheating prior to charging is evaluated by simulation, showing that preheating could increase lifetime and mileage of BEV taxis by 14% in South European climates. In another application, it is calculated that mid-shift fast-charging could even double the life of the battery compared to fast-charging only before shift change, leading simultaneously to improved performance when compared within the same operational period. Such results could support battery and vehicle manufacturers as well as fleet managers to guide BEV taxi owners towards optimal charging behavior. The modeling approach presented in this paper can be further extended to other vehicle groups, environmental, driving and charging conditions, making it a powerful tool not only for manufacturers, but also for policymakers and charging infrastructure companies.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100441"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220146","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}
Pub Date : 2025-10-01DOI: 10.1016/j.nxener.2025.100456
Yu Hui Lui , Xinyou Ke , Sheng Liu , Lei Zhang , Yong Wang , Huanhuan Wang
To accurately and efficiently predict the lifetime of Li-ion batteries for their practical applications in battery electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, energy storage systems, etc., accurate semiempirical life models are desired for battery lifetime simulation. In this work, semiempirical calendar aging models considering nonconstant fitting coefficient functions based on storage aging tests for 20 Ah graphite/lithium iron phosphate pouch cells under various temperatures ranging from 0℃ to 60℃ and state-of-charges ranging from 20% to 100% were developed. It was found that the “best” calendar capacity life model with non-constant fitting coefficient functions compared with the common calendar capacity life model with constant fitting coefficients reduces the mean absolute error and root mean square error of the calendar capacity fitting by 7.4% and 6.6%, respectively. Moreover, the “best” calendar capacity life model proposed in this work outperforms 2 existing reference models reported in the literature, especially at high temperatures, that is, 40℃ and 60℃. It is expected that this work would benefit accurate and efficient calendar capacity prediction of Li-ion batteries.
{"title":"Semi-empirical calendar capacity degradation modeling of graphite/lithium iron phosphate (LFP) pouch cells: Non-constant fitting coefficient functions","authors":"Yu Hui Lui , Xinyou Ke , Sheng Liu , Lei Zhang , Yong Wang , Huanhuan Wang","doi":"10.1016/j.nxener.2025.100456","DOIUrl":"10.1016/j.nxener.2025.100456","url":null,"abstract":"<div><div>To accurately and efficiently predict the lifetime of Li-ion batteries for their practical applications in battery electric vehicles, hybrid electric vehicles, plug-in hybrid electric vehicles, energy storage systems, etc., accurate semiempirical life models are desired for battery lifetime simulation. In this work, semiempirical calendar aging models considering nonconstant fitting coefficient functions based on storage aging tests for 20 Ah graphite/lithium iron phosphate pouch cells under various temperatures ranging from 0℃ to 60℃ and state-of-charges ranging from 20% to 100% were developed. It was found that the “best” calendar capacity life model with non-constant fitting coefficient functions compared with the common calendar capacity life model with constant fitting coefficients reduces the mean absolute error and root mean square error of the calendar capacity fitting by 7.4% and 6.6%, respectively. Moreover, the “best” calendar capacity life model proposed in this work outperforms 2 existing reference models reported in the literature, especially at high temperatures, that is, 40℃ and 60℃. It is expected that this work would benefit accurate and efficient calendar capacity prediction of Li-ion batteries.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100456"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145265005","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}
Pub Date : 2025-10-01DOI: 10.1016/j.nxener.2025.100449
Baowei Wang, Weiyue Huo, Yi Cheng, Shize Liu, Jijun Zou
Dry reforming technology is promising because it can simultaneously produce syngas (H2 and CO) and efficiently convert the greenhouse gas CO2. This study investigated the dry reforming (DR) of n-dodecane in a gliding arc plasma (GAP) reactor through integrated experimental and kinetic simulation approaches. Key operating parameters—O/C molar ratio, input power, and residence time—were evaluated for their influence on syngas production and reactant conversion. Optical emission spectroscopy (OES) identified active species, with spectral line intensities analyzed across varying O/C ratios. A validated zero-dimensional kinetic model, aligned with experimental data, revealed that H2 generation during C12H26 conversion is predominantly driven by recombination of n-dodecane with H atoms. H₂ production primarily arises from hydrocarbon electron impact reactions (e.g., C₂H₆, C₂H₄) and H atom recombination with species such as C₃H₆, CH₄, and C₃H₈. Detailed reaction pathways and mechanisms in the dry reforming system are elucidated through integrated experimental and kinetic modeling analyses. The n-dodecane conversion follows the following order: X(DR) > X(SR) > X(POR).
{"title":"Gliding arc plasma dry reforming of n-dodecane for H2 production: A mechanism study combined with experimental methods and kinetic modeling","authors":"Baowei Wang, Weiyue Huo, Yi Cheng, Shize Liu, Jijun Zou","doi":"10.1016/j.nxener.2025.100449","DOIUrl":"10.1016/j.nxener.2025.100449","url":null,"abstract":"<div><div>Dry reforming technology is promising because it can simultaneously produce syngas (H<sub>2</sub> and CO) and efficiently convert the greenhouse gas CO<sub>2</sub>. This study investigated the dry reforming (DR) of n-dodecane in a gliding arc plasma (GAP) reactor through integrated experimental and kinetic simulation approaches. Key operating parameters—O/C molar ratio, input power, and residence time—were evaluated for their influence on syngas production and reactant conversion. Optical emission spectroscopy (OES) identified active species, with spectral line intensities analyzed across varying O/C ratios. A validated zero-dimensional kinetic model, aligned with experimental data, revealed that H<sub>2</sub> generation during C<sub>12</sub>H<sub>26</sub> conversion is predominantly driven by recombination of n-dodecane with H atoms. H₂ production primarily arises from hydrocarbon electron impact reactions (e.g., C₂H₆, C₂H₄) and H atom recombination with species such as C₃H₆, CH₄, and C₃H₈. Detailed reaction pathways and mechanisms in the dry reforming system are elucidated through integrated experimental and kinetic modeling analyses. The n-dodecane conversion follows the following order: X(DR) > X(SR) > X(POR).</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100449"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220174","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}
Pub Date : 2025-10-01DOI: 10.1016/j.nxener.2025.100448
Julien Göthel , Andreas Corsten , Olena Volkova
This paper critically evaluates hydrogen's role as a decarbonization strategy, addressing key technical and economic constraints that challenge its widespread adoption. We analyze inherent energy conversion losses that make hydrogen-based systems less efficient than direct electrification for many applications, along with persistent issues in scalable storage, distribution, and production costs. The analysis highlights the specific limitations of the 2 primary production pathways: green hydrogen, constrained by the high cost of electrolyzers and the sourcing of critical materials, and blue hydrogen, which faces concerns regarding methane leakage and the long-term viability of carbon capture technologies. We argue that hydrogen's most effective application is as a strategic enabler for hard-to-abate sectors, such as heavy industry and long-distance transport. The paper also explores innovative concepts like thermochemical looping with metal oxides and the integration of hydrogen into a circular carbon economy as pathways to enhance its efficiency and economic viability. Ultimately, the transition to a global hydrogen economy is a complex, multi-decade undertaking that necessitates a pragmatic, targeted approach with substantial investment and coordinated international policy to realize its full potential.
{"title":"Evaluating the hydrogen supply chain so far—An assessment and review of critical aspects for an economy supported by a “hydrogen infrastructure”","authors":"Julien Göthel , Andreas Corsten , Olena Volkova","doi":"10.1016/j.nxener.2025.100448","DOIUrl":"10.1016/j.nxener.2025.100448","url":null,"abstract":"<div><div>This paper critically evaluates hydrogen's role as a decarbonization strategy, addressing key technical and economic constraints that challenge its widespread adoption. We analyze inherent energy conversion losses that make hydrogen-based systems less efficient than direct electrification for many applications, along with persistent issues in scalable storage, distribution, and production costs. The analysis highlights the specific limitations of the 2 primary production pathways: green hydrogen, constrained by the high cost of electrolyzers and the sourcing of critical materials, and blue hydrogen, which faces concerns regarding methane leakage and the long-term viability of carbon capture technologies. We argue that hydrogen's most effective application is as a strategic enabler for hard-to-abate sectors, such as heavy industry and long-distance transport. The paper also explores innovative concepts like thermochemical looping with metal oxides and the integration of hydrogen into a circular carbon economy as pathways to enhance its efficiency and economic viability. Ultimately, the transition to a global hydrogen economy is a complex, multi-decade undertaking that necessitates a pragmatic, targeted approach with substantial investment and coordinated international policy to realize its full potential.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100448"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145220177","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}
Pub Date : 2025-10-01DOI: 10.1016/j.nxener.2025.100450
Alpesh Kumar Dauda, Ambarish Panda
In promoting the decarbonization of power systems, integrating cleaner energy sources is essential. However, the intermittent nature of renewable energy (wind and solar) presents challenges for seamless grid integration. This issue can be mitigated by strategically deploying electrical energy storage (EES) systems in hybrid power systems (HPS), which combine conventional and renewable generators. While prior studies have focused on specific aspects like modeling, sizing, and economic analysis, a comprehensive review of EES integration and operational challenges in HPS is still lacking. This study offers an in-depth overview of recent advancements in EES integration into HPS, highlighting key objectives, operational concerns, and solution methodologies. It explores issues related to small-scale energy storage technologies such as batteries, supercapacitors, superconducting magnetic energy storage (SMES), flywheels, hydrogen fuel cells, and hybrid energy storage systems (ESSs) in HPS. A scientometric analysis based on 250 Scopus-indexed articles is conducted, including co-authorship, citation, and keyword co-occurrence analysis. Key findings include (1) A 510% growth in publications during the last decade (over 120 articles in 2020–2023), reflecting accelerating global attention. (2) China (11%), Iran (11%), and India (9%) contribute most of the journal articles, while Germany achieves the highest average citation impact (229.5 citations per paper) and (3) identification of “SMES” and “flywheels” as underexplored areas, suggesting potential research gaps in the domain of EES-integrated HPS.
{"title":"Energizing tomorrow: A scientometric exploration into energy storage integration in hybrid power systems","authors":"Alpesh Kumar Dauda, Ambarish Panda","doi":"10.1016/j.nxener.2025.100450","DOIUrl":"10.1016/j.nxener.2025.100450","url":null,"abstract":"<div><div>In promoting the decarbonization of power systems, integrating cleaner energy sources is essential. However, the intermittent nature of renewable energy (wind and solar) presents challenges for seamless grid integration. This issue can be mitigated by strategically deploying electrical energy storage (EES) systems in hybrid power systems (HPS), which combine conventional and renewable generators. While prior studies have focused on specific aspects like modeling, sizing, and economic analysis, a comprehensive review of EES integration and operational challenges in HPS is still lacking. This study offers an in-depth overview of recent advancements in EES integration into HPS, highlighting key objectives, operational concerns, and solution methodologies. It explores issues related to small-scale energy storage technologies such as batteries, supercapacitors, superconducting magnetic energy storage (SMES), flywheels, hydrogen fuel cells, and hybrid energy storage systems (ESSs) in HPS. A scientometric analysis based on 250 Scopus-indexed articles is conducted, including co-authorship, citation, and keyword co-occurrence analysis. Key findings include (1) A 510% growth in publications during the last decade (over 120 articles in 2020–2023), reflecting accelerating global attention. (2) China (11%), Iran (11%), and India (9%) contribute most of the journal articles, while Germany achieves the highest average citation impact (229.5 citations per paper) and (3) identification of “SMES” and “flywheels” as underexplored areas, suggesting potential research gaps in the domain of EES-integrated HPS.</div></div>","PeriodicalId":100957,"journal":{"name":"Next Energy","volume":"9 ","pages":"Article 100450"},"PeriodicalIF":0.0,"publicationDate":"2025-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145265010","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}