ACS Applied Energy Materials最新文献

{"title":"Engineered Fe2O3/TiO2/Carbon-Dots Heterostructures for Enhanced Photoelectrochemical Water Oxidation","authors":"Ehsan Mohammadi,&nbsp;Vittorio Ricci,&nbsp;Luigi Stagi,&nbsp;Stefania Mura,&nbsp;Luca Lozzi,&nbsp;Daiana Piccirilli,&nbsp;Plinio Innocenzi,&nbsp;Luca Malfatti,&nbsp;Carlo Cantalini,&nbsp;Valentina Paolucci","doi":"10.1021/acsaem.6c02250","DOIUrl":"https://doi.org/10.1021/acsaem.6c02250","url":null,"abstract":"<p>Hematite (α-Fe₂O₃) is an abundant, low-cost visible-light absorber and a leading photoanode candidate for solar-driven water splitting, yet its conversion efficiency remains constrained by poor charge transport, fast electron–hole recombination, and sluggish oxygen evolution reaction (OER) kinetics. Here, we engineer a Fe₂O₃/TiO₂/Carbon-dot (C-dot) photoanode built on an FTO substrate that addresses these bottlenecks through a defined layer architecture: hydrothermally grown Fe₂O₃ nanorods provide visible-light absorption, a sol–gel-deposited mesoporous TiO₂ overlayer passivates the hematite surface, and finally solvothermally grown C-dots decorate the outer surface to drive interfacial charge transfer. Structural and chemical characterization confirms a well-integrated, intimately contacted heterostructure, while optical measurements show that C-dot incorporation broadens visible-light harvesting without altering the underlying optical band gap (∼2.1 eV) indicating that any performance gain originates from charge-transport rather than band-structure effects. Under photoelectrochemical testing, the Fe₂O₃/TiO₂/C-dots photoanode delivers substantially higher OER photocurrent than the Fe₂O₃/TiO₂ baseline across the full UV-to-visible illumination range, with simulated-solar photocurrent density increasing by approximately 2.5-fold at neutral pH and by approximately 3.4-fold under alkaline conditions, pH 14, where OER kinetics are most favorable. The device sustains stable, reproducible photocurrent over multi-hour continuous solar illumination in both electrolytes, supporting its operational robustness under realistic water-splitting conditions. Mechanistically, Mott–Schottky analysis shows that C-dot incorporation more than doubles the carrier density (from 1.6 × 10²⁰ to 3.3 × 10²⁰ cm^–3), while electrochemical impedance spectroscopy reveals a ∼27% reduction in interfacial charge-transfer resistance, together identifying enhanced carrier density and accelerated interfacial charge transfer, rather than band-edge modification, as the origin of the improved device performance. These results establish C-dot functionalization as a simple, scalable strategy for boosting the photocurrent and operational stability of Fe₂O₃/TiO₂ photoanodes, with direct relevance to the design of higher-performing, low-cost solar-to-fuel conversion devices for water oxidation and solar hydrogen production.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"14042–14054"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368435","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineering Flexible Pristine and Core–Shell Triazolate Frameworks with Pressure-Induced Breathing for High-Pressure CO2 Capture","authors":"Prerna Yogeshwar,&nbsp;Devangshi Debraj,&nbsp;Shailina Srivastava,&nbsp;Gomathi Rajalakshmi Seetharam,&nbsp;Sachin S. Gunthe,&nbsp;Jitendra S. Sangwai","doi":"10.1021/acsaem.6c02529","DOIUrl":"https://doi.org/10.1021/acsaem.6c02529","url":null,"abstract":"<p>This study presents the synthesis of pristine zinc and cobalt triazolate frameworks (ZnTF and CoTF) and their bimetallic core–shell architectures (ZnTF@CoTF, CoTF@ZnTF) for high-pressure CO₂ capture. Utilizing 1,2,4-triazole linkers integrates uncoordinated, nitrogen-rich Lewis basic sites into the pores, enhancing CO₂ binding without surface modifications. Crystallographic and computational analyses reveal that these materials adopt flexible cubic lattices capable of pressure-induced \"breathing\". High-pressure evaluations up to 40 bar demonstrate a striking inverse correlation between the baseline surface area and gas uptake. The CoTF@ZnTF architecture exhibited the lowest intrinsic low-temperature porosity (BET maximum of 18 cm³/g) but achieved the highest high-pressure CO₂ capacity of 2.4 mmol/g. This indicates that strongly interacting CO₂ molecules provide the thermodynamic energy to physically pry open the constrained lattice, effectively excluding N₂. Conversely, the ZnTF@CoTF composite maximized thermodynamic separation, reaching a peak CO₂/N₂ selectivity of 7.8 with a CO₂ uptake of 2.15 mmol/g. Ambient-pressure cyclic testing via QCM-D highlighted the stability advantages of this interfacial locking mechanism. While the pristine CoTF lost 13.4% of its capacity over ten humidity cycles, encapsulating the system within a robust ZnTF shell (ZnTF@CoTF) effectively shielded the vulnerable cobalt phase, retaining 98.0% of its hydrolytic capacity. Ultimately, engineering interfacial lattice mismatch in core–shell triazolate heterostructures successfully balances dynamic structural flexibility, localized Lewis basicity, and hydrolytic shielding, yielding highly durable solid physisorbents for scalable carbon mitigation.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"14322–14337"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368479","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Ni4Co Nanoparticles Enable Stable Ethane-Fueled Protonic Solid Oxide Fuel Cells for Electricity–Ethylene Cogeneration","authors":"Jun Long,&nbsp;Lijuan Wang,&nbsp;Xiuan Xi,&nbsp;Xian-Zhu Fu,&nbsp;Jing-Li Luo","doi":"10.1021/acsaem.6c02664","DOIUrl":"https://doi.org/10.1021/acsaem.6c02664","url":null,"abstract":"<p>Ethylene production via conventional steam cracking is highly energy-intensive and suffers from substantial CO₂ emissions, catalyst deactivation, and coke formation. Proton-conducting solid oxide fuel cells (SOFCs) offer an attractive alternative by coupling selective ethane dehydrogenation with direct electricity generation. However, efficient ethane-fueled operation remains limited by the lack of anodes that combine high catalytic activity, electrochemical performance, and coking resistance. Here, we develop a Ni₄Co nanoparticle-modified La_0.5Sr_0.5Fe_0.9Mo_0.1O_3–δ (Ni₄Co@LSFM) composite anode for protonic SOFCs capable of coproducing ethylene and electricity from ethane. The LSFM perovskite scaffold provides structural stability, redox tolerance, and charge-transport pathways, while the dispersed Ni₄Co nanoparticles promote ethane activation and selective C–H bond cleavage. The resulting cell fabricated using Ni₄Co@LSFM as the anode delivers peak power densities of 332 and 200 mW cm^–2 at 750 °C in H₂ and C₂H₆, respectively. During ethane operation, the cell achieves 44.3% ethane conversion and 41.0% ethylene yield while maintaining stable performance for 100 h with negligible degradation. This work demonstrates that integrating alloy nanoparticle catalysis with a robust perovskite oxide framework is an effective strategy for enhancing hydrocarbon conversion, power generation, and coke tolerance, highlighting protonic SOFCs as promising electrochemical reactors for efficient ethane-to-ethylene cogeneration.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"14534–14543"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368445","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Autonomous Recovery and Borate-Tolerant Behavior in Mesoporous Q-ZIF-9: A Benchmark for Stable H2 Generation Catalysts","authors":"Minoo Bagheri,&nbsp;Maryam Jafari,&nbsp;Mohammad Yaser Masoomi","doi":"10.1021/acsaem.6c02611","DOIUrl":"https://doi.org/10.1021/acsaem.6c02611","url":null,"abstract":"<p>Quasi-ZIF-9 (Q-ZIF-9) was obtained by controlled thermal treatment of pristine ZIF-9 at 270 °C for 10 min in air, inducing partial ligand removal, coordinatively unsaturated cobalt sites, and hierarchical porosity. These structural changes substantially enhanced the catalytic performance of Q-ZIF-9 for hydrogen generation from sodium borohydride hydrolysis, resulting in a 3.6-fold increase in the maximum hydrogen generation rate and a 1.87-fold increase in cumulative hydrogen volume compared with pristine ZIF-9. Systematic evaluation of catalyst loading, NaBH₄ concentration, and temperature revealed strong dependence of the reaction kinetics on operating conditions. The hydrogen generation rate increased from 1423 to 11,200 mL H₂ g^–1min^–1 at 45 °C, corresponding to a 7.87-fold enhancement, while the activation energy was determined to be 77.3 kJ mol^–1. The reaction exhibited quasi-first-order dependence on catalyst concentration and zero-order dependence on NaBH₄ concentration. Thermodynamic analysis indicated a thermally accelerated catalytic process, with activation parameters of Δ<em>H</em>^# = 75.0 kJ mol^–1 and Δ<em>S</em>^# = 380 J mol^–1 K^–1, as determined by Eyring analysis. Importantly, Q-ZIF-9 exhibited exceptional operational durability without intermediate washing or regeneration. Short-term stability testing (24 consecutive cycles of 1 h) demonstrated that Q-ZIF-9 retained approximately 65% of its initial activity after 23 cycles. In contrast, long-term operation (24 consecutive 24 h cycles) sustained 92.2% efficiency over the first 11 cycles of a 24-cycle test (576 h total) despite progressive borate accumulation. The catalyst further exhibited a self-correcting behavior following periods of activity loss, highlighting its ability to tolerate accumulated byproducts during prolonged operation, a feature not previously reported for ZIF-based catalysts in NaBH₄ hydrolysis. These findings demonstrate that controlled thermal evolution of ZIF-9 can simultaneously enhance catalytic activity and operational durability, providing a promising strategy for developing self-correcting catalysts for practical sodium borohydride-based hydrogen generation.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"14461–14473"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368453","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interfacial Engineering of Zn–Ag Bimetallic Catalysts to Enable Efficient CO2-to-CO Conversion in Both Acidic and Alkaline Media","authors":"Thuy Dieu Thi Ung,&nbsp;Hai Nam Ha,&nbsp;Tran Thi Thu Huong,&nbsp;Loan Nguyen Thu,&nbsp;Viet Q. Bui,&nbsp;Quynh Anh T. Nguyen,&nbsp;Sandrine Zanna,&nbsp;Ngoc Huan Tran,&nbsp;Marc Fontecave,&nbsp;Quang Liem Nguyen","doi":"10.1021/acsaem.6c02441","DOIUrl":"https://doi.org/10.1021/acsaem.6c02441","url":null,"abstract":"<p>Electrochemical CO₂ reduction (CO₂RR) offers a promising strategy for converting greenhouse gases into value-added chemicals; however, maintaining high selectivity across diverse pH environments remains challenging. Acidic electrolytes enhance carbon efficiency by suppressing carbonate formation but simultaneously favor the hydrogen evolution reaction, whereas alkaline media provide high activity while causing CO₂ loss through carbonate/bicarbonate formation. Here, we report a nanoporous-Zn–Ag catalyst with engineered interfacial sites that enables efficient CO₂-to-CO conversion in both acidic and alkaline environments. The catalyst was synthesized by CTAB-assisted electrodeposition followed by controlled galvanic replacement, generating Zn–Ag interfaces that optimize CO₂RR activity. In a flow-cell configuration, the optimized Zn–Ag catalyst prepared with 0.02 mM AgNO₃ (denoted ZnAg-1) achieved a Faradaic efficiency (FE) exceeding 90% for CO₂ conversion into CO and formic acid production at –100 mA cm^–2 in both 1.0 M KOH (pH 14) and 0.05 M H₂SO₄ + 1.0 M KCl (pH 1), with stable operation long-term electrolysis. Interestingly, the product distribution depended strongly on electrolyte pH:CO selectivity reached 87% in alkaline media but decreased to ∼71% under acidic conditions, while formate/formic acid contribution increased from 3 to 20%. Density functional theory free-energy calculations using representative Zn–Ag interfacial models suggest that local Zn–Ag coordination can lower the thermodynamic requirement for *COOH formation and facilitate CO desorption; the potential-limiting PCET step is *COOH formation from *CO₂ (<em>ΔG</em> = 0.34 eV), corresponding to <em>U</em>_L = –0.34 V vs RHE. The experimentally observed increase in formate/formic acid under acidic conditions is tentatively attributed to the competing *OCHO pathway, which is not explicitly evaluated in the present DFT calculations. These results demonstrate that interfacial engineering in bimetallic catalysts enables efficient CO₂RR across a wide pH range, providing a viable pathway toward industrial implementation.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"14216–14226"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368535","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Interface-Engineered Polypyrrole/WS2 Heterostructures for High-Voltage Symmetric Supercapacitors","authors":"Kiran Gupta,&nbsp;Rajulal Sahu,&nbsp;Babasaheb R. Sankapal,&nbsp;Arun Kumar Singh","doi":"10.1021/acsaem.6c02474","DOIUrl":"https://doi.org/10.1021/acsaem.6c02474","url":null,"abstract":"<p>Aqueous electrolytes in supercapacitors are constrained by a narrow operating voltage window, limiting energy density and practical applicability thereof. To overcome this, organic electrolytes offer a promising approach to achieve higher operating voltages while maintaining excellent energy and power densities. The current study focuses on the employability of LiClO₄ in a propylene carbonate:ethylene carbonate:ethyl acetate electrolyte with interface-engineered tungsten disulfide (WS₂) nanoparticles (NPs) embedded in polypyrrole (PPy) via a facile in-situ route with varying WS₂ NP loadings (5 and 10 wt %) to elucidate their influence on the electrochemical performance and widen the potential window in a symmetric liquid-configured prototype device. The structure and morphology of the heterostructures were systematically examined through various analytical tools. The PPy/WS₂ heterostructure electrode containing WS₂ NPs with a loading of 5 wt % exhibits the optimal performance, delivering a specific capacitance of 231.7 F g^–1 at a sweep rate of 5 mV s^–1. The symmetric device achieved a high operating voltage of 2.4 V, corresponding to 32 Wh kg^–1 energy density and 1221.7 W kg^–1 power density at 1 A g^–1, along with 79% sustainability for 10,000 charge–discharge cycles. Furthermore, the successful operation of an LED panel and a small DC fan highlights the practical applicability of the assembled prototype.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"14279–14291"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368536","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Microenvironment-Directed Product Selectivity in Electrochemical C–N Coupling: Recent Advancements and Future Outlook","authors":"Souradip Ganguly,&nbsp;Sirshendu Ghosh","doi":"10.1021/acsaem.6c02323","DOIUrl":"https://doi.org/10.1021/acsaem.6c02323","url":null,"abstract":"<p>The C–N bond is integral to essential agronomical, biochemical, and industrial products, including urea, amides, amines, amino acids, oximes, and pharmaceuticals. Whereas traditional synthesis demands costly noble metals, extreme temperatures, and high pressures that generate toxic pollution, electrocatalytic C–N coupling provides a highly selective, green alternative powered by renewable electricity under ambient conditions. By co-reducing abundant feedstocks like CO₂, CO, N₂, and NO_<em>x</em>, this method tackles the profound thermodynamic barriers of breaking robust N≡N and C=O bonds. Nevertheless, the simultaneous reduction of carbon and nitrogen introduces severe kinetic hurdles, notably mismatched intermediate reaction rates and aggressive competing side reactions. Overcoming these barriers requires highly stable catalysts operating at low potentials, coupled with rigorous microenvironment engineering adapted from mature CO₂ and NO_<em>x</em>/N₂ reduction systems. By precisely shaping mass transport, reactant coverage, and local electric fields, selectivity is maximized through three primary strategies: targeted catalyst design utilizing defect engineering, ligand coordination, and nanoscale morphological control across single-atom, single-metal, and bimetallic architectures; dynamic pulsed electrolysis; and electrolyte tuning via pH and cation modifications. By comprehensively evaluating these catalytic innovations, substrate activation mechanisms, characterization techniques, and integrated electrolytic cell configurations, this review provides a definitive roadmap for translating laboratory-scale organonitrogen electrosynthesis into sustainable, large-scale industrial manufacturing through microenvironment tuning.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"13811–13834"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Effect of Depletion Region Width on Self-Powered UV–Visible Photoresponse of Cu2O-In2O3 Planar p–n Junction Photodetectors","authors":"Karthickraja Ramakrishnan,&nbsp;Sourav Deb,&nbsp;Y. Ashok Kumar Reddy,&nbsp;Shyju Thankaraj Salammal,&nbsp;Govindhasamy Murugadoss,&nbsp;B. Ajitha","doi":"10.1021/acsaem.6c02911","DOIUrl":"https://doi.org/10.1021/acsaem.6c02911","url":null,"abstract":"<p>Self-powered photodetectors have garnered significant attention due to their potential applications in optical communication, remote sensing, and imaging. This work presents p-Cu₂O/n-In₂O₃ type-II heterojunction photodetectors via sputtering, achieving self-powered photodetection across the ultraviolet-visible spectrum. Here, Cu₂O-In₂O₃ planar p–n junction thin films are developed with different depletion region widths (DRWs) of 1.5, 3.0, and 4.5 mm. Optical studies confirm that the In₂O₃ film exhibits strong ultraviolet (UV) absorbance and a wide bandgap of 3.35 eV. In contrast, the Cu₂O film exhibits strong UV–visible absorbance with a narrow bandgap of 2.25 eV. Among the devices, the device with a DRW of 3.0 mm achieves higher photodetector performance, attributed to a stronger electric field and reduced charge-carrier recombination in the depletion region. Consequently, the device with a 3.0 mm DRW shows the highest responsivity (<em>R</em>_λ) of 4.8 mA/W, 9.4 mA/W, 13.8 mA/W, and 4.4 mA/W and detectivity (D^*) of 2.14 × 10¹⁰ Jones, 4.19 × 10¹⁰ Jones, 6.15 × 10¹⁰ Jones, and 1.98 × 10¹⁰ Jones at 380, 460, 530, and 630 nm illuminations, respectively, even at lower incident optical power densities. Although the fabricated Cu₂O-In₂O₃ p–n junction self-powered photodetector devices exhibit relatively modest figures of merit, they offer distinct advantages: self-powered operation, a broad spectral response in the UV–visible region, and stable photoresponse, highlighting their potential for low-power optoelectronic applications.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"14688–14698"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Unlocking Rapid Ion-Electron Kinetics via Amorphous 2,6-Diaminopyridine Covalent Organic Frameworks and Monoclinic WO3 Heterointerfaces for High-Performance Energy Storage","authors":"Rohit Sharma,&nbsp;Ramandeep Kaur,&nbsp;Manisha Malik,&nbsp;Shweta Rana","doi":"10.1021/acsaem.6c02361","DOIUrl":"https://doi.org/10.1021/acsaem.6c02361","url":null,"abstract":"<p>Covalent organic frameworks (COFs) possess diverse porous architectures and tailored structural features, making them platforms for advanced energy-storage systems. Here, we report, for the first time, a synergistic composite of SR-COF and monoclinic tungsten trioxide, exhibiting enhanced pseudocapacitive charge storage. The SR-COF is synthesized via condensation of 2,6-diaminopyridine and 1,3,5-benzenetricarbaldehyde through imine linkages, forming an irregular, highly aggregated porous morphology comprising interconnected spherical voids like a network with a rough and textured surface, providing an efficient framework for energy storage. Synergistic integration with WO₃ effectively mitigates the intrinsic limitations of pristine COFs, thereby enhancing charge-storage capability. Electrochemical evaluation of the solid-state symmetric device, employing graphite flakes as a current collector and PVA-H₂SO₄ gel as an electrolyte, has demonstrated a high energy density of 94.44 Wh kg^–1 at a power density of 1133 W kg^–1 at 1 A g^–1. The device retains 83.2% of its capacitance with a Coulombic efficiency of 102.9% after 10,000 cycles at 30 A g^–1, underscoring its excellent durability and potential for next-generation high-performance supercapacitor applications. The assembled supercapacitor device is charged to approximately 1.0 V using a commercially available external power source for 5 min and then successfully used to illuminate a light-emitting diode (LED), confirming its potential for real-world energy storage applications.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"14179–14193"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368618","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Versatile Thin Polymer Fibers Produced by a Cotton-Candy Melt-Spinning Method: Examples of Dye Doping and Microplastic Generation","authors":"M. Jazmin Silvero C.,&nbsp;Valeria Savchenko,&nbsp;Juan C. Scaiano","doi":"10.1021/acsaem.6c02236","DOIUrl":"https://doi.org/10.1021/acsaem.6c02236","url":null,"abstract":"<p>We report a method for producing thin plastic fibers (TPFs) in a few minutes using an inexpensive cotton-candy machine. Commercially available plastics (PP, PMMA, PETG, and PLA) were used to evaluate the versatility of this simple technique. Thin fibers are generated starting from pieces of thicker (1.7 mm diameter) three-dimensional (3D) printing fibers or with commercial plastic products to generate a cotton-like mesh of TPFs that retains the properties of the original material. The TPFs can be loaded with a variety of dyes, including Rose Bengal and Rhodamine 6G, during their manufacture. These fibers can uptake organic molecules and serve as a tool to study the interaction of plastic fibers with pollutants in nature. We show that these fibers can be employed to fabricate microplastics. This top-down manufacture yields easy-to-track microplastics that mimic the diverse shapes and sizes found in nature to enable realistic impact studies.</p>","PeriodicalId":4,"journal":{"name":"ACS Applied Energy Materials","volume":"9 21","pages":"14055–14063"},"PeriodicalIF":5.5,"publicationDate":"2026-11-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"149368632","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}