Energy & Fuels最新文献

{"title":"Review of Ordered Mesoporous Carbon-Based Adsorbents for CO2 Capture: Synthesis, Action Mechanism, and Potential","authors":"Lin Qiao,&nbsp;Jiaqi Chen and Dong Fu*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0141010.1021/acs.energyfuels.5c01410","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c01410https://doi.org/10.1021/acs.energyfuels.5c01410","url":null,"abstract":"<p >Currently, global warming driven by CO₂ emissions is among the major challenges facing the world. It is pushing scientists and engineers to explore new methods for capturing and sequestering of CO₂ from industrial flue gas. Given that the concentrations of dust, SO₂, and NO_<i>X</i> in flue gas have significantly decreased due to the gradual popularization of ultralow emission technology, adsorption separation technology is demonstrating its flexibility and vitality. Utilizing porous carbon materials for capturing CO₂ is a highly effective strategy, particularly with ordered mesoporous carbon (OMC) materials, which have an adjustable pore size, large surface area, thick pore wall, and high thermal and hydrothermal stability. This review provides a detailed overview of the synthesis, modification, action mechanism, and current issues associated with OMC material. Additionally, it emphasizes that OMC is a very promising adsorbent material that is anticipated to become a commercial CO₂ adsorbent when evaluated for adsorption performance, regeneration capacity, economic and sustainability analysis, and environmental impact. Finally, it outlines the shortcomings of current OMC research and proposes future research directions for OMC while also indicating the development directions and key areas of focus for CO₂ adsorbent research.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10245–10273 10245–10273"},"PeriodicalIF":5.2,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211875","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Dual-Interface-Induced Multi-Active Sites in Polypyrrole-Encapsulated Bimetallic Oxide Heterostructures for Enhanced Overall Water Splitting","authors":"Wenjuan Lu,&nbsp;Qian Liao,&nbsp;Xiaodong Cai*,&nbsp;Qi Li,&nbsp;Danhua Jiao* and Rongrong Wang,&nbsp;","doi":"10.1021/acs.energyfuels.5c0051310.1021/acs.energyfuels.5c00513","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00513https://doi.org/10.1021/acs.energyfuels.5c00513","url":null,"abstract":"<p >The construction of multicomponent coupled interfaces is crucial to designing highly effective and robust bifunctional electrocatalysts for water splitting. Spinel oxides are widely used as efficient catalysts; nonetheless, their catalytic activity requires enhancement. Experimental results reveal that the interfacial coupling and synergistic effect between the conductive PPy and Co₃O₄/CoMoO₄, characterized by tunable electronic configuration, enhance charge transport and optimize the electronic structure of the coupled interface. This integrated PPy can improve the conductivity and ensure the durability of Co₃O₄/CoMoO₄-PPy. Thanks to the advantages mentioned above, the obtained Co₃O₄/CoMoO₄-PPy (CoO/CoMoO-PPy) exhibits exceptional catalytic properties with overpotentials of 76 mV for the hydrogen evolution reaction (HER) and 270 mV for the oxygen evolution reaction (OER) at 10 mA cm^–2. Remarkably, the assembled CoO/CoMoO-PPy||CoO/CoMoO-PPy acquires only 1.59 V at 10 mA cm^–2 in 1.0 M KOH with a durability of 40 h. This study provides a significant reference for designing bimetallic oxide/polymer catalysts toward high-efficiency overall water splitting.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10554–10561 10554–10561"},"PeriodicalIF":5.2,"publicationDate":"2025-05-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of Spray Chamber Ignition Delay and Cetane Numbers for Aviation Turbine Fuels.","authors":"Jon Luecke, Nimal Naser, Zhibin Yang, Joshua Heyne, Robert L McCormick","doi":"10.1021/acs.energyfuels.5c01350","DOIUrl":"10.1021/acs.energyfuels.5c01350","url":null,"abstract":"<p><p>Experiments using pure compounds, National Jet Fuels Combustion Program (NJFCP) test fuels, and commercial jet fuels were conducted to demonstrate the equivalence of the indicated cetane number (ICN) and derived cetane number (DCN) for jet fuels. The calibrated range for ICN was also extended to lower cetane number (CN) values (5 to 35) to allow CN quantification for jet fuel synthetic blending components (SBCs) with low CN. ICN and DCN were shown to be highly correlated for values above about 30. This study presents the most comprehensive comparison of these two methods published to date. Because of the importance of low-volume test methods for early-stage SBC production process development, we demonstrated that ICN and DCN can be accurately measured with 15 mL of fuel, well below 40 to 100 mL required by standard methods. ICN or DCN is important for jet fuels because fuels with lower CN are more prone to lean blowout (LBO), an undesirable operational failure in a jet engine. Comparing data on a fuel-to-air ratio (Φ) at LBO for the NJFCP fuels shows similar linear correlations for ICN and DCN. Ignition delay measurements at lower-pressure and higher-temperature conditions may be more directly relevant to LBO. At 675 °C, 0.5 MPa, and a global Φ of roughly 0.68, ignition delay time correlations to LBO were similar to those produced from DCN and ICN. A much weaker correlation was obtained with a global Φ value of 0.34.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10479-10487"},"PeriodicalIF":5.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12147154/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144264761","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}

{"title":"Assessing the Potential of Alternative Fuels to Decarbonize Long-Haul Trucking in the United States","authors":"Kariana Moreno Sader,&nbsp;Sayandeep Biswas,&nbsp;Akshat Shirish Zalte,&nbsp;Emre Gençer and William H. Green*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0144710.1021/acs.energyfuels.5c01447","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c01447https://doi.org/10.1021/acs.energyfuels.5c01447","url":null,"abstract":"<p >This work presents the costing and emission analysis of four alternative fuels for decarbonizing long-haul trucking in the United States: methanol and Fischer–Tropsch (FT) diesel derived from biomass, and Liquid Organic Hydrogen Carriers (LOHCs) and ammonia produced using green hydrogen. First, we model fuel synthesis pathways using ASPEN and perform discounted cash-flow analysis to obtain the fuel production cost. Next, we consider fuel-specific distribution costs and powertrain models to obtain the total cost of ownership. In addition, a well-to-wheel emissions analysis is conducted for each fuel. Cost and emissions are combined to report the cost per tonne of CO₂e avoided, and this metric is used to compare the different alternative fuel options. It is computed to be $125 for biomass-derived methanol, $238 for biomass-derived FT diesel, $455 for green H₂-LOHC, and $647 for green ammonia. For today’s baseline scenario, methanol has the lowest cost of decarbonization for long-haul trucking. Break-even scenarios are also presented at varying biomass costs and electricity prices, along with additional case studies, such as using blue hydrogen for LOHC and ammonia production in the short and midterm until the viability of green hydrogen improves. This analysis indicates that using blue hydrogen lowers the cost per tonne of CO₂e avoided to $80 for LOHC and $175 for ammonia, respectively, which are more comparable to biomass-derived methanol. In the long run, biomass scarcity and expected reductions in clean hydrogen production costs favor zero-carbon fuels for long-haul trucking.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10705–10720 10705–10720"},"PeriodicalIF":5.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211839","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Nanostructured Metal Organic Framework-74 Derivatives for the Esterification of Levulinic Acid to Butyl Levulinate","authors":"Ghewa AlSabeh,&nbsp;Amar Khalil,&nbsp;Asmaa Jrad,&nbsp;Mounir Driss Mensi and Mohamad Hmadeh*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0044910.1021/acs.energyfuels.5c00449","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00449https://doi.org/10.1021/acs.energyfuels.5c00449","url":null,"abstract":"<p >In this work, 12 metal–organic framework-74 (MOF-74) candidates were evaluated as heterogeneous catalysts for synthesizing the eco-friendly biofuel additive, butyl levulinate (BL). This study focuses on optimizing the catalytic performance of such frameworks by exploring the relationships between the synthesis conditions, structural composition, and catalytic properties. A range of MOF-74 derivatives with different metal centers (e.g., Zn, Cu, Mn, Ni, Co, and Mg) were solvothermally synthesized and fully characterized using PXRD, TGA, SEM, XPS, IR and BET surface area measurements. The catalytic performance of the studied MOFs in the esterification of levulinic acid (LA) to butyl levulinate (BL) was investigated, with Zn-MOF-74 emerging as the most effective catalyst, achieving a conversion rate of 96% at a LA-to-butanol molar ratio of 1:7. Catalyst loading and reaction temperature were assessed on Zn-MOF-74, whereas the most favorable conditions were found to be 120 °C and 5 wt % catalyst loading with respect to the initial mass of LA. Furthermore, the recyclability test showed a sustained crystallinity and catalytic efficiency of the Zn-based catalyst with a conversion of 91% after five cycles. Additionally, nanoscaled version of the MOF catalysts, including mixed-metal samples synthesized at room temperature, were evaluated, and showed comparable conversion rates to the solvothermally produced MOFs. Zn-MOF-74 was further modified by varying the amounts of magnetite (Fe₃O₄) nanoparticles to create magnetic framework composites (MFCs) with enhanced magnetic separation capabilities. These MFCs demonstrated catalytic conversions close to 94%, confirming that Fe₃O₄ loading did not impede the intrinsic active sites within this framework. Finally, two kinetic models were developed to analyze the reaction parameters for the esterification process. This work underscores the potential of tailored MOF structures as efficient catalysts in producing biofuel-relevant esters, offering insights for industrial biofuel applications.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10410–10423 10410–10423"},"PeriodicalIF":5.2,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Perovskite/Silicon Tandem Photovoltaics: Long-Term Stability through Interface Engineering","authors":"Ahmed A. Said*,&nbsp;Xiaole Li,&nbsp;Esma Ugur,&nbsp;Furkan H. Isikgor,&nbsp;Jiang Liu,&nbsp;Randi Azmi,&nbsp;Michele De Bastiani,&nbsp;Erkan Aydin,&nbsp;Shanshan Zhang,&nbsp;Anand S. Subbiah,&nbsp;Thomas G. Allen,&nbsp;Gilles Lubineau,&nbsp;Iain McCulloch and Stefaan De Wolf*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0051110.1021/acs.energyfuels.5c00511","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00511https://doi.org/10.1021/acs.energyfuels.5c00511","url":null,"abstract":"<p >Perovskite solar cells (PSCs) have experienced a rapid increase in power conversion efficiency (PCE) over the past decade, positioning them as strong candidates for next-generation commercial photovoltaics (PVs). Their tunable bandgap makes them ideal for tandem configurations, especially when coupled with crystalline silicon (Si) bottom cells; this combination offers the potential to exceed the PCE limits of single-junction devices and is arguably essential for successful market entry of perovskite technologies. However, commercialization of perovskite/Si tandems also demands enhanced durability and reliable integration into PV modules, withstanding long-term outdoor exposure. Besides light, temperature, and voltage bias stress, difficulties to overcome involve the mechanical stability and performance of the interfaces within tandem devices, which may degrade over time under real-world operating conditions. This review explores the critical role of interface engineering in addressing these challenges, reviewing the latest advancements in interface materials, encapsulation strategies, and novel integration techniques. By identification of the critical issues and adequate solutions, this paper provides a vision for the future of perovskite/Si tandem solar cells, emphasizing the importance of advanced manufacturing techniques and interdisciplinary research but also policy support.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10134–10149 10134–10149"},"PeriodicalIF":5.2,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211791","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Measurement of Spray Chamber Ignition Delay and Cetane Numbers for Aviation Turbine Fuels","authors":"Jon Luecke,&nbsp;Nimal Naser,&nbsp;Zhibin Yang,&nbsp;Joshua Heyne and Robert L. McCormick*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0135010.1021/acs.energyfuels.5c01350","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c01350https://doi.org/10.1021/acs.energyfuels.5c01350","url":null,"abstract":"<p >Experiments using pure compounds, National Jet Fuels Combustion Program (NJFCP) test fuels, and commercial jet fuels were conducted to demonstrate the equivalence of the indicated cetane number (ICN) and derived cetane number (DCN) for jet fuels. The calibrated range for ICN was also extended to lower cetane number (CN) values (5 to 35) to allow CN quantification for jet fuel synthetic blending components (SBCs) with low CN. ICN and DCN were shown to be highly correlated for values above about 30. This study presents the most comprehensive comparison of these two methods published to date. Because of the importance of low-volume test methods for early-stage SBC production process development, we demonstrated that ICN and DCN can be accurately measured with 15 mL of fuel, well below 40 to 100 mL required by standard methods. ICN or DCN is important for jet fuels because fuels with lower CN are more prone to lean blowout (LBO), an undesirable operational failure in a jet engine. Comparing data on a fuel-to-air ratio (Φ) at LBO for the NJFCP fuels shows similar linear correlations for ICN and DCN. Ignition delay measurements at lower-pressure and higher-temperature conditions may be more directly relevant to LBO. At 675 °C, 0.5 MPa, and a global Φ of roughly 0.68, ignition delay time correlations to LBO were similar to those produced from DCN and ICN. A much weaker correlation was obtained with a global Φ value of 0.34.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10479–10487 10479–10487"},"PeriodicalIF":5.2,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/epdf/10.1021/acs.energyfuels.5c01350","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211803","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}

{"title":"Co-Incorporated S-Doped Graphitic Carbon Derived from Orange Peel Biowaste: An Efficient Electrocatalyst for Sustainable Water Splitting and Urea Oxidation","authors":"Madasu Sreenivasulu,&nbsp;Ghada A. Khouqeer,&nbsp;Ranjan S. Shetti,&nbsp;Naglaa AbdelAll,&nbsp;Abdullah N. Alodhayb and Nagaraj P. Shetti*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0174210.1021/acs.energyfuels.5c01742","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c01742https://doi.org/10.1021/acs.energyfuels.5c01742","url":null,"abstract":"<p >The advancement of effective, robust, and cost-effective trifunctional electrocatalysts for the hydrogen evolution reaction (HER), urea oxidation reaction (UOR), and oxygen evolution reaction (OER), is essential for electrochemical energy conversion processes. This work demonstrates the synthesis of steady and practical cobalt nanoparticles on extremely porous graphitic carbon doped with sulfur using a straightforward, sustainable, economically viable, and scalable approach. The catalysts were strengthened at varying temperatures via direct pyrolysis followed by carbonization in a nitrogen-rich atmosphere. Related to further catalysts, the carbon material synthesized at 600 °C (Co-SPC600) displays superior electrochemical performance. At a 10 mA cm^–2 of current density in 1 M KOH, the electroactive catalyst Co-SPC600 requires an overpotential of 260 mV (119 mV dec^–1) for the OER and 111 mV (111 mV dec^–1) for the HER. The active catalyst Co-SPC600 demonstrates a current degradation of less than 4.2% for OER and less than 4.6% for HER, indicating sustained durability over 60 h. For overall water splitting, Co-SPC600/NF//Co-SPC600/NF operates at 1.50 V with constant progression of H₂ and O₂ at the cathode and anode, correspondingly, exhibiting a current reduction of less than 4.8% over 80 h. Furthermore, Co-SPC600/NF facilitates urea oxidation at 1.37 V in a solution of 0.33 M urea and 1 M KOH.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10610–10627 10610–10627"},"PeriodicalIF":5.2,"publicationDate":"2025-05-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211750","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Asphaltenes Flocculation: Coarse-Grained Simulations","authors":"Estelle Deguillard*,&nbsp;Estrella Rogel*,&nbsp;Cesar Ovalles and Jan-Willem Handgraaf,&nbsp;","doi":"10.1021/acs.energyfuels.5c0102210.1021/acs.energyfuels.5c01022","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c01022https://doi.org/10.1021/acs.energyfuels.5c01022","url":null,"abstract":"<p >There are significant barriers to successfully simulating asphaltene precipitation behavior. First, the accurate representation of specific asphaltenes is challenging due to their intrinsic complexity, and second, the size of the systems can limit the analysis of the temporal evolution to a few tens of nanoseconds when atomistic simulations are used. We present an approach to overcome these two barriers by integrating asphaltene mixtures built to match average properties with coarse-grained simulations. The asphaltene behavior is studied as toluene is replaced by <i>n</i>-heptane in a stepwise fashion, resembling the asphaltene titration. Three different asphaltene model mixtures (virgin Asphaltenes A1 and A2 and processed Asphaltenes B) were built to match the average properties of real asphaltenes. The results showed that coarse-grained simulations allowed longer run times and length scales than previous atomistic modeling, extending from a few nanoseconds to an equivalent of 0.75 μs. Additionally, numerical calculations captured the impact of changes in the asphaltene aggregation mechanisms. Specifically, the virgin materials showed an overall lower aggregation percentage and lower cluster formation (monomer, dimer, and trimer) with varying shapes. Conversely, the processed asphaltenes showed a 7-fold increase in aggregation percentage through π–π stacking via their large aromatic cores. Compared with Turbiscan precipitation experiments, our simulations showed good qualitative alignment for both virgin asphaltene A1 and processed asphaltene B. Significant deviations are observed for virgin asphaltene A2, which is attributed to the difference in heteroatomic functional groups. These findings highlight the critical influence of heteroatomic functionalities on asphaltene aggregation behavior and emphasize that reliable molecular characterization data is essential for developing simulations that accurately match experimental observations.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10314–10330 10314–10330"},"PeriodicalIF":5.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211891","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Suppressed Voltage Decay of Li-Rich Li1.2Ni0.13Mn0.54Co0.13O2 Electrodes through Delayed Spinel-Phase Formation for Lithium-Ion Batteries","authors":"Dhatshanamoorthy Boopathi,&nbsp;Diptikanta Swain,&nbsp;Boris Markovsky,&nbsp;Doron Aurbach and Prasant Kumar Nayak*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0102610.1021/acs.energyfuels.5c01026","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c01026https://doi.org/10.1021/acs.energyfuels.5c01026","url":null,"abstract":"<p >Despite possessing a high gravimetric capacity above 230 mAh g^–1, Li-rich NMC oxides suffer from the bottleneck of capacity fading and a decrease in the discharge voltage upon cycling. Therefore, suppressing the discharge voltage decay is a major concern for employing these cathodes in Li-ion cells. To understand the structural change during initial cycles, the ex-situ X-ray diffraction investigation of Li-rich NMC cathodes at different charged states (4.0, 4.4, and 4.6 V) after completing one cycle in the potential domain of 2.0–4.7 V is conducted, which reveals the generation of a spinel phase only when polarized to above 4.4 V. Hence, Li-rich Li_1.2Ni_0.13Mn_0.54Co_0.13O₂ cathodes herein are investigated across three different voltage ranges: 2.0–4.6 V, 2.7–4.6 V, and 2.7–4.4 V versus Li, after being activated first by polarization up to 4.7 V, to assess the suitable operational voltage range for their stable cycling behavior. When being cycled at C/5 rate in the voltage domains of 2.0–4.6, 2.7–4.6, and 2.7–4.4 V, the gravimetric charge storage of Li_1.2Ni_0.13Mn_0.54Co_0.13O₂ cathodes is around 230, 226, and 208 mAh g^–1, respectively. Interestingly, the decay in discharge voltage has been suppressed from 0.31 to 0.1 V, and the retention of capacity is improved from 76.5 to 82.4% upon 100 cycles by controlling the voltage window of cycling from 2.0–4.6 V to 2.7–4.4 V vs. Li. Thus, this study reveals the essentiality of controlled cycling of Li-rich NMC oxides for better cycling performance in LIBs without using surface coating and doping of foreign elements.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 22","pages":"10674–10686 10674–10686"},"PeriodicalIF":5.2,"publicationDate":"2025-05-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144211888","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"工程技术","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}