Energy & Fuels最新文献

{"title":"Gas Production Optimization from 3D Hydrate Dissociation via Depressurization in Multiply Fractured Reservoirs","authors":"Li Zhang,&nbsp;Qingping Li,&nbsp;Ranjith P. Gamage,&nbsp;Bisheng Wu*,&nbsp;Guangjin Wang,&nbsp;Kaixiang Shen and Jiawei Zhou,&nbsp;","doi":"10.1021/acs.energyfuels.5c0025210.1021/acs.energyfuels.5c00252","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00252https://doi.org/10.1021/acs.energyfuels.5c00252","url":null,"abstract":"<p >Natural gas hydrate (NGH), a clean energy resource with vast reserves and high energy density, holds significant potential to address global energy demands. However, its commercial exploitation remains challenging due to low dissociation efficiency under conventional extraction methods. To address this limitation, this study investigates the synergistic effects of hydraulic fracturing and depressurization on enhancing NGH mining. A three-dimensional model is developed using the commercial package, TOUGH + HYDRATE, to study the NGH dissociation by depressurization from a single horizontal well intercepted by multiple hydraulic fractures. After a sensitivity analysis is carried out, a quantitative relationship between the fracture density (<i>N</i>_d), depressurization amplitude (<i>P</i>_w) and the gas production performance is established. The results reveal that the dissociation rate in the case with fractures is several orders of magnitude higher than that in the case without fractures. Notably, the impact of <i>N</i>_d on production diminishes at higher <i>N</i>_d values. Increasing <i>N</i>_d from 1 to 3 enhances cumulative gas release by over 30%, whereas further increases to <i>N</i>_d = 4 and 5 yield only about 18% incremental gains. Additionally, at small depressurization amplitudes (<i>P</i>_w = 0.8<i>P</i>₀–0.9<i>P</i>₀), fracture density exerts minimal influence on dissociation efficiency due to insufficient driving forces. Spatial analysis shows that dissociation fronts initially form and propagate near the wellbore, but later exhibit near the upper and lower boundaries of the NGH layer. The gas distribution gradually increases during the initial year, but subsequently concentrates only near advancing fronts, driven by fluid influx from adjacent strata and the presence of high-permeability flow channels. These findings demonstrate that optimizing fracture density and depressurization amplitude is critical for balancing extraction efficiency, providing actionable insights for designing field-scale NGH production strategies.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 16","pages":"7723–7738 7723–7738"},"PeriodicalIF":5.2,"publicationDate":"2025-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863227","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":"Unveiling the Catalytic Performance and Mechanisms of La0.9Ca0.1NiO3 Catalysts with Copper Substitution in Anti-Coking Dry Reforming","authors":"Huayu Qiu,&nbsp;Zhiliang Ou,&nbsp;Kang Hui Lim,&nbsp;Guoqiang Song,&nbsp;Claudia Li,&nbsp;Yuan Wang,&nbsp;Hamidreza Arandiyan,&nbsp;Hangjia Zhang,&nbsp;Xin Huang,&nbsp;Juntian Niu,&nbsp;Jingyu Ran* and Sibudjing Kawi*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0013310.1021/acs.energyfuels.5c00133","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00133https://doi.org/10.1021/acs.energyfuels.5c00133","url":null,"abstract":"<p >The challenge of carbon deposition in Ni-based catalysts poses a significant hurdle for the sustainable utilization of carbon dioxide through dry reforming of methane (DRM). To address this, our research has led to enhanced catalytic performance and improved resistance to carbon deposition, achieved by partially substituting Cu for Ni in the composition of La_0.9Ca_0.1NiO₃-based perovskite catalysts. Specifically, Ni9Cu1 (Ni/Cu molar ratio = 9:1) catalyst demonstrated reduced metal particle sizes, increased CO₂ utilization efficiency and comparable metal–support interaction with Ni10Cu0. Ni9Cu1 catalysts showed strong carbon resistance with minimal coke formation after a 24 h stability test, while Ni10Cu0 catalysts had over 30% carbon deposition. In summary, the strategic inclusion of Cu at the B-site of La_0.9Ca_0.1NiO₃ catalyst optimized a delicate equilibrium between carbon formation and elimination to give superb coke resistance in DRM.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 16","pages":"7830–7840 7830–7840"},"PeriodicalIF":5.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863176","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":"Boosting Reaction Kinetics through the Construction of Ni3S2–MoS2 Semicoherent Interfaces for Enhanced Electrochemical Overall Water Splitting","authors":"Jingjing Zhu,&nbsp;Yuying Feng,&nbsp;Jia hui Jiang,&nbsp;Tingting Huang,&nbsp;Juan Xiao,&nbsp;Qihao Wu,&nbsp;Guancheng Xu* and Li Zhang*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0017210.1021/acs.energyfuels.5c00172","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00172https://doi.org/10.1021/acs.energyfuels.5c00172","url":null,"abstract":"<p >In recent years, the technology of electrocatalytic water splitting for hydrogen production has garnered significant interest. Nonetheless, the kinetics associated with the hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) are comparatively sluggish, thereby constraining the enhancement of water decomposition efficiency to a certain degree. In this paper, the Ni₃S₂-MoS₂/ NF semicoherent heterostructure interface electrocatalyst with multistage nanosheet was synthesized by the hydrothermal method. At the material level, the structure adeptly incorporates a semicoherent interface with a multilayer nanosheet configuration. This design not only preserves the nanosheet morphology of the precursor but also facilitates the formation of folded nanoflowers, thereby increasing the active surface area and promoting the rapid transfer of electrons. Furthermore, it optimizes the electronic environment of the electrode through interface charge redistribution, thereby diminishing the adsorption of H by the strong S–H bonds and accelerating the reaction kinetics. Additionally, the structure achieves optimal lattice matching, which enhances ion diffusion and reduces the associated diffusion barrier. In a 1.0 M KOH solution, the catalyst showed excellent performance in both the OER and HER. In situ Raman spectroscopy demonstrated that Ni–OOH serves as the true active site for the OER. This study provides a new idea for the precise design of bifunctional HER and OER electrocatalysts.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 16","pages":"7864–7875 7864–7875"},"PeriodicalIF":5.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863132","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":"Enhancement of Biogenic Coalbed Methane by ScCO2–H2O Treatment","authors":"Xiyang Feng,&nbsp;Lunru Yan,&nbsp;Hongguang Guo*,&nbsp;Zaixing Huang and Michael Urynowicz,&nbsp;","doi":"10.1021/acs.energyfuels.5c0116810.1021/acs.energyfuels.5c01168","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c01168https://doi.org/10.1021/acs.energyfuels.5c01168","url":null,"abstract":"<p >Supercritical CO₂ (ScCO₂) extraction could enhance biogenic methane production from coal by optimizing the coal structure, and water acted as an entrainer to improve the extraction efficiency of ScCO₂. In this study, the methane production experiments were conducted on anthracite with different moisture contents treated with ScCO₂. The changes in coal structure, organic matter, and elemental content caused by ScCO₂–H₂O treatment were analyzed. The methane production increased by 46.1% as moisture content rose from 0% to 20%, but did not continue to increase at 30% due to nutrient leaching. Under water-immersed conditions, although the methane production from ScCO₂ treated coal decreased, the total methane production from ScCO₂ treated coal and leachate reached 314.95 μmol/g coal. This value was increased by 61.59% compared with that of raw coal. These findings highlighted the dual role of moisture in facilitating ScCO₂ extraction and shifting methane generation from coal to leachate. Structural analysis confirmed that moisture enhanced the effect of ScCO₂ on functional groups in coal. Specifically, the total amount of aromatics with two substitutions and aromatics with three substitutions decreased progressively from 67.98% to 54.27% with increasing moisture content. The same phenomenon was also observed for carboxylic acids and C=O functional groups with maximum reductions of 100% and 71.51%. Instead, the CH₃/CH₂ ratio was positively correlated with moisture content. The concentrations of TOC, straight-chain alkanes, iron, nickel, and cobalt in leachate treated with ScCO₂–H₂O increased by 5.52, 1.35, 11 592.79, 229.17, and 27.76 times, respectively, compared to those in leachate treated with water alone, supporting the high methane production in leachate. It highlighted that moisture-driven structural modifications and nutrient mobilization were key mechanisms for optimizing the enhancement of ScCO₂ on microbially enhanced coalbed methane (MECBM). These findings suggested that water-bearing anthracite coal seam would be a suitable stratum for ScCO₂ enhanced MECBM.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 16","pages":"7781–7789 7781–7789"},"PeriodicalIF":5.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863129","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":"Robust Interphases Constructed by an Excellent Ionic Conductivity Versatile Binder System for High-Voltage Li-Rich Mn-Based Layered Oxide Cathode","authors":"Mengxing Su,&nbsp;Yang Yang,&nbsp;Kejie Jin,&nbsp;Liaoliao Li,&nbsp;Hao Tian,&nbsp;Zhijun Wu*,&nbsp;Shengnan He*,&nbsp;Yanxia Liu*,&nbsp;Chao Zheng,&nbsp;Jiantuo Gan,&nbsp;Liaona She,&nbsp;Yaxiong Yang,&nbsp;Mingchang Zhang,&nbsp;Yong Gao and Hongge Pan*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0023710.1021/acs.energyfuels.5c00237","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00237https://doi.org/10.1021/acs.energyfuels.5c00237","url":null,"abstract":"<p >Lithium-Rich Layered Oxide (LRMO) cathode has caused concern for high specific capacity. However, it still suffers from oxygen release, transition metal (TM) ion migration, and interfacial side reactions, leading to accelerated capacity fading, low Coulombic efficiency (CE), and poor rate capability. Herein, a high-voltage binder with excellent ionic conductivity (CPPFPBA) is constructed by combining carboxymethyl cellulose (CMC) and ionic-conductive poly(ethylene oxide) (PEO) through hydrogen bonding, with pentafluorophenylboronic acid (PFPBA) incorporated as an advanced additive. The H-bonding between carboxyl moieties (−COOH) in CMC and terminal hydroxyl (−OH) functionalities on PEO improves cathode adhesion, while the in situ incorporation of PFPBA increases the oxidation potential of the CPPFPBA composite binder to 5.35 V. Crucially, the CPPFPBA binder promotes the formation of a uniform F-rich structure on the LRMO surface. Thus, this modified binder both enhances Li⁺ transport capability and sustains an ionically conductive cathode electrolyte interphase layer during cycling. The artificial LiF-rich cathode electrolyte interphase (CEI) layer can effectively protect the cathode from side reactions and inhibit the dissolution of transition metal ions, thereby enhancing the electrochemical capacity and cycling performance of LRMO batteries. Consequently, the CPPFPBA-modified LRMO cathode not only exhibits high ICE (&gt;84%) and a reversible capacity of 297 mAh g^–1 but also maintains exceptional cycling stability, retaining 102% of its initial capacity after 300 cycles at 200 mA g^–1.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 16","pages":"7890–7900 7890–7900"},"PeriodicalIF":5.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863092","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":"Thermal Evolution of Organic Matter in Low-Maturity Shale: A Multimodal Nanoscale Investigation","authors":"Yingjie Li,&nbsp;Tianhao Wu*,&nbsp;Junliang Zhao,&nbsp;Guorui Wang and Dongxiao Zhang*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0036010.1021/acs.energyfuels.5c00360","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00360https://doi.org/10.1021/acs.energyfuels.5c00360","url":null,"abstract":"<p >Systematic characterization of the nanoscale geomechanical and geochemical evolution of organic matter at elevated temperatures is critical for assessing the technical feasibility of <i>in situ</i> thermal methods in the development of low-maturity shale oil and gas. This study investigates the pyrolysis process of low-maturity, organic-rich shale from Yanchang Formation, focusing on thermal evolution in morphology, geochemistry, and geomechanical properties. The comprehensive analysis is performed through a series of sophisticated techniques, including thermogravimetric analysis coupled with thermogravimetric-Fourier transform infrared-gas chromatography/mass spectrometry (TG-FTIR-GC/MS), backscattered electron of the scanning electron microscopy (BSE-SEM), micro-Raman spectroscopy, atomic force microscopy-infrared spectroscopy (AFM-IR), and AFM PeakForce quantitative nanomechanics (PFQNM). Pyrolysis products evolve across three stages: water vapor dominates below 200 °C; hydrocarbons, CO₂, and sulfur compounds release in the range of 200–650 °C; and carbonate decomposition drives CO₂ emissions above 650 °C. Heating induces significant morphological alterations, including surface shrinkage, pore collapse, and thermal cracks (notably above 400 °C). Geochemical analyses show that the differences in structure among solid bitumen, vitrinite, and inertinite decrease as the temperature increases, alongside detaching aliphatic side chains and oxygenated functional groups and increasing the degree of aromatization. Geomechanical properties, measured via AFM-PFQNM, demonstrate an initial decrease in Young’s modulus (25–250 °C) due to pore water loss, followed by modulus increase (250–600 °C) attributed to the aromaticity enhancement and matrix shrinkage. These insights advance the understanding of in situ thermal conversion processes, offering practical guidelines for enhancing hydrocarbon recovery from low-maturity shale reservoirs. The multidisciplinary approaches resolve the interplay among thermal, chemical, and mechanical dynamics in shale pyrolysis.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 16","pages":"7739–7750 7739–7750"},"PeriodicalIF":5.2,"publicationDate":"2025-04-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863140","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":"High-Oxidative Desulfurization of Fuels Catalyzed by Encapsulation of Tetranuclear Sandwich-Type Polyoxometalate on Hierarchical Ni-MOF","authors":"Mohammad Ali Rezvani*,&nbsp;Hadi Hassani Ardeshiri,&nbsp;Hossein Ghafuri* and Nasrin Khalafi,&nbsp;","doi":"10.1021/acs.energyfuels.5c0005310.1021/acs.energyfuels.5c00053","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00053https://doi.org/10.1021/acs.energyfuels.5c00053","url":null,"abstract":"<p >Efforts to reduce sulfur content in transportation fuels have intensified due to the harmful environmental effects of sulfur emissions. Oxidative desulfurization (ODS) has been as a useful method for removing sulfur from fuels under mild operating conditions. Herein, nanocomposite FWF@NMF was synthesized via the supporting of Fe₆W₁₈O₇₀ (denoted as FWF) in the scaffold of Ni-MOF (NMF). Various techniques were employed to investigate the characteristics of the FWF@NMF nanocomposite, including Brunauer–Emmett–Teller (BET) surface area, Fourier transform infrared (FT-IR), X-ray Diffraction (XRD), Ultraviolet–Visible (UV–vis), Energy-Dispersive X-ray (EDX), and Scanning Electron Microscopy (SEM) analyses. These methods confirmed the successful synthesis of the nanocomposite and provided detailed insights into its structural and morphological properties. The FWF@NMF inorganic–organic hybrid composite was then applied in the ODS process for both real/model gasoline, using a combination of H₂O₂ and acetic acid (H₂O₂/AcOH) as an oxidizing agent. The results demonstrated that the FWF@NMF nanocatalyst exhibited a remarkable desulfurization efficiency, achieving sulfur removal of up to 98% with 0.10 g of catalyst at 35 °C for 60 min. Further, it was noted that a significant decrease in the total sulfur concentration in gasoline was observed, decreasing from 0.4995 to 0.0115 wt %. Furthermore, the FWF@NMF nanocatalyst exhibited excellent recyclability and maintained its activity without significant loss of performance over five consecutive cycles.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 16","pages":"7850–7863 7850–7863"},"PeriodicalIF":5.2,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863112","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":"Surface Considerations in Colloidal Semiconductor Nanocrystal Photocatalysis: A Mini Review","authors":"Emily Y. Tsui*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0088610.1021/acs.energyfuels.5c00886","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00886https://doi.org/10.1021/acs.energyfuels.5c00886","url":null,"abstract":"<p >Colloidal semiconductor nanocrystals are potential photosensitizers and photocatalysts for solar-fuel-related transformations. The nanocrystal surface dictates charge transfer rates and long-term photocatalyst stability, two longstanding challenges in this area. The surface is a complex hybrid interface that includes supporting ligands as well as the surface atoms of the semiconductor material, all of which can participate in photocatalysis. This mini review presents advances in understanding how these nanocrystal surface components influence nanocrystal photocatalytic applications. In particular, the effects of surface ligands, photoinduced surface reduction and oxidation processes, and surface radical reactions will be emphasized.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 15","pages":"7182–7195 7182–7195"},"PeriodicalIF":5.2,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143837658","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":"Biomass Hydropyrolysis in Molten Chloride Salts: Thermocatalytic Stability of Recycled Salts","authors":"Racchana Ramamurthy,&nbsp;Stef Ghysels,&nbsp;Adriana Estrada Léon,&nbsp;Daniel Nowakowski and Frederik Ronsse*,&nbsp;","doi":"10.1021/acs.energyfuels.5c0009010.1021/acs.energyfuels.5c00090","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.5c00090https://doi.org/10.1021/acs.energyfuels.5c00090","url":null,"abstract":"<p >Pyrolysis of biomass using molten chloride salts offers a novel approach to biomass valorization. This process benefits from the rapid heat transfer provided by the molten salts and their catalytic activity. In this study, we investigated the effects of the pyrolysis atmosphere (inert gas versus pressurized hydrogen), biomass type, and temperature, primarily at the microscale, while also addressing industrially relevant considerations, particularly on the recyclability of the molten salts. Given that an excess of salt is needed with respect to the biomass, achieving high recovery rates of the salts is critical for process viability. To this end, we developed a recovery process involving water extraction, filtration, and drying to recycle the eutectic chloride salts. Achieved results demonstrated recovery yields of 95–100 wt % with minimal impact on the thermal and catalytic properties of the salts. The catalytic performance of the recycled salts remained largely consistent; the total volatiles’ yields decreased only ca. 4% points upon 3 salt recycling series. Hydropyrolysis of pinewood using recycled salts led to an increase in the production of gas chromatography (GC)-detected volatiles (from ca. 17 wt % using fresh salts to 29 wt % using spent salts from 3 recycling cycles), which in majority were furans and ketones. This effect may be attributed to the retention of calcium and magnesium from the biomass in the recycled salts, which potentially enhances the formation of these compounds. This study provides the first comprehensive evaluation of chloride molten salt recycling in biomass hydropyrolysis, demonstrating the potential for sustainable and efficient biomass valorization through molten salt reuse. The findings suggest that recycled salts can maintain high catalytic performance and may even enhance certain product yields, underscoring the promise of this approach.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 15","pages":"7326–7338 7326–7338"},"PeriodicalIF":5.2,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143837785","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":"Synthesis and Application of Time-Gated Fluorescent Tags for Tracing Downhole Fluids and Mineral Samples","authors":"Marta Antoniv,&nbsp;S. Sherry Zhu*,&nbsp;Gawain Thomas and Martin E. Poitzsch,&nbsp;","doi":"10.1021/acs.energyfuels.4c0594710.1021/acs.energyfuels.4c05947","DOIUrl":"https://doi.org/10.1021/acs.energyfuels.4c05947https://doi.org/10.1021/acs.energyfuels.4c05947","url":null,"abstract":"<p >We have developed a nanoparticle (NP) composed of a polystyrene-vinyl benzoic acid copolymer via one-pot emulsion polymerization. This NP anchors a Eu³⁺ complex with a 1,10-phenanthroline antenna ligand (PS-VBA-Eu-Phen). With only 15 mol % of the Eu³⁺ ion relative to styrene, this low-cost and readily scalable NP exhibits the characteristic luminescence of ligand-to-metal charge transfer from the Eu³⁺ complex. We determined the lifetime and the intrinsic quantum yield of the strongest ⁵D₀ → ⁷F₂ luminescence for the Eu³⁺ complex inside the NPs. The long lifetime of the luminescence ensures clear detection of the PS-VBA-Eu-Phen NPs in complex oil-based mud (OBM) and on mineral samples (cuttings) recovered from the OBM using time-gated emission measurement. This method effectively reduces the background emission from minerals or additives in the mud and promises potential applications of the NP as a tracer or tag for tracking downhole fluids and cuttings.</p>","PeriodicalId":35,"journal":{"name":"Energy & Fuels","volume":"39 16","pages":"7713–7722 7713–7722"},"PeriodicalIF":5.2,"publicationDate":"2025-04-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143863108","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}