Energy & Environmental Materials最新文献

{"title":"Coupling Lattice Strain and Sulfur Vacancy in Tin Monosulfide/Reduced Graphene Oxide Composite for High-Performance Sodium-Ion Storage","authors":"Yitong Jiang,&nbsp;Yihong Zheng,&nbsp;Lijuan Tong,&nbsp;Kun Zuo,&nbsp;Mulan Tu,&nbsp;Shihong Chen,&nbsp;Xiaochuan Chen,&nbsp;Junxiong Wu,&nbsp;Qinghua Chen,&nbsp;Xiaoyan Li,&nbsp;Yuming Chen","doi":"10.1002/eem2.12891","DOIUrl":"https://doi.org/10.1002/eem2.12891","url":null,"abstract":"<p>Sodium-ion batteries have garnered significant attention as a cost-effective alternative to lithium-ion batteries due to the abundance and affordability of sodium precursors. However, the lack of suitable electrode materials with both high capacity and excellent stability continues to hinder their practical viability. Herein, we couple lattice strain and sulfur deficiency effects in a tin monosulfide/reduced graphene oxide composite to enhance sodium storage performance. Experimental results and theoretical calculations reveal that the synergistic effects of lattice strain and sulfur vacancies in tin monosulfide promote rapid (de)intercalation near the surface/edge of the material, thereby enhancing its pseudocapacitive sodium storage properties. Consequently, the strained and defective tin monosulfide/reduced graphene oxide composite demonstrates a high reversible capacity of 511.82 mAh g⁻¹ at 1 A g⁻¹ and an outstanding rate capability of 450.60 mAh g⁻¹ at 3 A g⁻¹. This study offers an effective strategy for improving sodium storage performance through lattice strain and defect engineering.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 4","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12891","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190830","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"High-Performance Stretchable Gallium Battery for Wearable Electronics, Through Synthesis of Foam Electrodes","authors":"Elahe Parvini,&nbsp;Abdollah Hajalilou,&nbsp;Manuel Reis Carneiro,&nbsp;Pedro Alhais Lopes,&nbsp;Mahmoud Tavakoli","doi":"10.1002/eem2.12889","DOIUrl":"https://doi.org/10.1002/eem2.12889","url":null,"abstract":"<p>The demand for sustainable and stretchable thin-film printed batteries for bioelectronics, wearables, and e-textiles is rapidly increasing. Recently, we developed a fully 3D-printed soft-matter thin-film Ga-Ag₂O battery with 3R characteristics: resilient to mechanical strain, repairable after damage, and recyclable. This battery achieved a record-breaking areal capacity of 26.37 mAh cm⁻², increasing to 30.32 mAh cm⁻² after 10 cycles under 100% strain. This performance stems from the synergistic effects of gallium's liquid metal properties and the styrene-isoprene-styrene polymer in the anode. Gallium's high specific capacity (1153.2 mAh g⁻¹), deformability, and self-healing abilities, supported by its supercooled liquid phase, significantly enhance the battery's resilience and efficiency. However, the cathode's lower theoretical capacity, due to Ag₂O (231.31 mAh g⁻¹), remains a limitation. Traditional Ag₂O-carbon black-styrene-isoprene-styrene cathodes experience rapid capacity decay as only the surface area of the active materials interacts with the electrolyte. To overcome this, we designed a carbon-filled Ag₂O foam electrode using a sacrificial sugar template, increasing the effective surface area. This optimization enhanced ion-exchange efficiency, specific capacity, and cyclability, achieving a specific capacity of 221.16 mAh g⁻¹. Consequently, the Ga-Ag₂O stretchable battery attained a record areal capacity of 40.91 mAh cm⁻²—double that of nonfoam electrodes—and exhibited fivefold improved charge–discharge cycles. Using ultrastretchable Ag-EGaIn-styrene-isoprene-styrene and carbon black-styrene-isoprene-styrene current collectors, the battery's specific capacity increased by 33% under 50% strain. Integrated into a soft-matter smart wristband for temperature monitoring, the battery demonstrated its promise for wearable electronics.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 4","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12889","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"All-Solid-State Rechargeable Air Batteries with Naphthoquinone-Based Negative Electrodes: Improved Performance and Cyclability","authors":"Kenji Miyatake,&nbsp;Suguru Wada,&nbsp;Lin Guo,&nbsp;Fang Xian,&nbsp;Fanghua Liu,&nbsp;Ahmed Mohamed Ahmed Mahmoud,&nbsp;Vikrant Yadav,&nbsp;Chun Yik Wong","doi":"10.1002/eem2.12887","DOIUrl":"https://doi.org/10.1002/eem2.12887","url":null,"abstract":"<p>All-solid-state rechargeable air batteries are designed and fabricated using 1,4-naphthoquinone as a negative electrode, proton-conductive polymer membrane as a solid electrolyte, and platinum-based oxygen diffusion as a positive electrode as an emerging energy device. 1,4-Naphthoquinone molecules exhibit reversible redox reactions peaked at 0.28 and 0.52 V versus reversible hydrogen electrode with the polymer electrolyte similar to that in an acid aqueous solution. The all-solid-state rechargeable air battery cell shows an open circuit voltage of 0.83 V, a nominal voltage of 0.3–0.4 V, a discharge capacity of 83.6 mAh g⁻¹, and an initial Coulombic efficiency of 86.8%. The Coulombic efficiency after 15 charge–discharge cycles improves from 57.3% to 69.1% by replacing carbon black with graphite carbon as a support for the platinum catalyst in the positive electrode. Furthermore, replacing the commercial Nafion electrolyte membrane with the synthesized (in-house) polyphenylene-based ionomer (sulfonated polyphenylene-quinquephenylene) electrolyte membrane improves the cycle durability of the resulting all-solid-state rechargeable air battery with high Coulombic efficiency retention (&gt;98%) after 135 cycles owing to the lower oxygen permeability of the latter membrane. Overall, the present all-solid-state rechargeable air battery using 1,4-naphthoquinone outperforms our previous all-solid-state rechargeable air battery using dihydroxybenzoquinene as a redox-active molecule.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 4","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12887","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190999","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Porous Organic Cages with Aggregation-Induced Emission Property for Anti-counterfeiting Ink Bioimaging","authors":"Anli Yang,&nbsp;Yifan Guo,&nbsp;Yanji Zhang,&nbsp;Zhuolin Yang,&nbsp;Yuyo Go,&nbsp;Di Wu,&nbsp;Chunzheng Ma,&nbsp;Linlin Shi,&nbsp;Bingjie Li","doi":"10.1002/eem2.12885","DOIUrl":"https://doi.org/10.1002/eem2.12885","url":null,"abstract":"<p>The application of aggregation-induced emission (AIE) materials in biological imaging holds multiple significances, including improving detection sensitivity and specificity, optimizing the imaging process, expanding the scope of application, and promoting advancements in biomedical research. In this work, the propeller ligand was constructed through McMurry coupling reaction and Suzuki coupling reaction by using dimethoxybenzophenone as the starting material. Then, an imine condensation reaction was carried out in chloroform solution, using a 3:2 molar ratio of precursor to tri(2-aminoethyl) amine to synthesize <i>C</i>₃ symmetric porous organic cage C_B. The structures of the compounds were determined by nuclear magnetic resonance spectroscopy (NMR), electrospray ionization mass spectrometry (ESI-MS) and Fourier transform infrared spectroscopy (FT-IR). The optical investigation results reveal that ligand L–B and the porous organic cage C_B demonstrate remarkable aggregation-induced emission (AIE) properties in a tetrahydrofuran/water mixed solvent system, along with a pronounced response to tetrahydrofuran vapor stimuli. Consequently, Furthermore, given its unique cage-like structure, high quantum yield, and outstanding AIE behavior, the porous organic cage <b>C</b>_<b>B</b> holds promise for applications in cell imaging.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 4","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12885","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190721","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Electrochemical Response of Cold-Sintered Cathode-Hybrid Electrolyte Bilayers: Deep Insights into the Determining Kinetic Mechanisms via Operando Electrochemical Impedance Characterization","authors":"Sergio Ferrer-Nicomedes,&nbsp;Andrés Mormeneo-Segarra,&nbsp;Nuria Vicente-Agut,&nbsp;Antonio Barba-Juan,&nbsp;Germà Garcia-Belmonte","doi":"10.1002/eem2.12886","DOIUrl":"https://doi.org/10.1002/eem2.12886","url":null,"abstract":"<p>This study demonstrates the successful fabrication of solid-state bilayers using LiFePO₄ (LFP) cathodes and Li_1.3Al_0.3Ti_1.7(PO4)₃ (LATP)-based Composite Solid Electrolytes (CSEs) via Cold Sintering Process (CSP). By optimizing the sintering pressure, it is achieved an intimate contact between the cathode and the solid electrolyte, leading to an enhanced electrochemical performance. Bilayers cold sintered at 300 MPa and a low-sintering temperature of 150 °C exhibit high ionic conductivities (0.5 mS cm⁻¹) and stable specific capacities at room temperature (160.1 mAh g⁻¹_LFP at C/10 and 75.8 mAh g⁻¹_LFP at 1 C). Moreover, an <i>operando</i> electrochemical impedance spectroscopy (EIS) technique is employed to identify limiting factors of the bilayer kinetics and to anticipate the overall electrochemical behavior. Results suggest that capacity fading can occur in samples prepared with high sintering pressures due to a volume reduction in the LFP crystalline cell. This work demonstrates the potential of CSP to produce straightforward high-performance bilayers and introduces a valuable non-destructive instrument for understanding and avoiding degradation in solid-state lithium-based batteries.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 4","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12886","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144190960","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Biphasic Graphene-Oxide Liquid Metal Powder: Synthesis, Characterization, and Application in Energy Storage","authors":"Afsaneh L. Sanati,&nbsp;André F. Silva,&nbsp;Miguel Maranha,&nbsp;Mahmoud Tavakoli","doi":"10.1002/eem2.12890","DOIUrl":"https://doi.org/10.1002/eem2.12890","url":null,"abstract":"<p>Nanodroplets of Gallium-Based Liquid Metal (LM) have applications in stretchable electronics, electrochemical sensors, energy storage, hyperthermia, and rapid polymerization. The gallium oxide layer around LMNDs prevents aggregation. However, LM nanodroplets (LMNDs) are neither mechanically nor chemically stable. The ultrathin oxide layer ruptures under slight pressure, hindering their use in stretchable electronics. The shell also dissolves in slightly acidic/alkaline solutions, making them unstable for energy storage and electrochemical sensing. We demonstrate the synthesis of a dry LM powder with an LM core and a reduced graphene oxide shell. Graphene oxide provides excellent mechanical and chemical stability and permits electrical conductivity. Its porous structure does not block ion exchange between the LM droplets and the environment, allowing LMNDs to be used in energy storage and electrochemical sensing. The resulting EGaIn powders benefit from higher surface and long-term stability, addressing LMND limitations. We report using GO@EGaIn nanocomposite as an anode for alkali-ion batteries in a novel Ag-EGaIn cell with impressive energy storage capacity. The combination of liquid deformability of LMNDs, higher surface area in the nano form, and the stability of GO@EGaIn dry powder expands the applications of liquid metals in electronics and energy storage.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12890","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835978","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Facet-Dependent Performance of Microstructured SrTiO3 Particles in Photocatalytic Oxidation of Acetone","authors":"Nathália Tavares Costa,&nbsp;Daniel Monteiro Cunha,&nbsp;Kaijian Zhu,&nbsp;Annemarie Huijser,&nbsp;Georgios Katsoukis,&nbsp;Kasper Wenderich,&nbsp;Jitte Flapper,&nbsp;Guido Mul","doi":"10.1002/eem2.12862","DOIUrl":"https://doi.org/10.1002/eem2.12862","url":null,"abstract":"<p>Photocatalysis is a promising technology for purification of indoor air by oxidation of volatile organic compounds. This study provides a comprehensive analysis of the adsorption and photo-oxidation of surface-adsorbed acetone on three SrTiO₃ morphologies: cubes (for which exclusively {100} facets are exposed), {110}-truncated cubes, and {100}-truncated rhombic dodecahedrons, respectively, all prepared by hydrothermal synthesis. In situ Diffuse Reflectance Infrared Fourier Transform Spectroscopy shows that cubic crystals contain a high quantity of surface –OH groups, enabling significant quantities of adsorbed acetone in the form of η¹-enolate when exposed to gas phase acetone. Contrary, {110} facets exhibit fewer surface –OH groups, resulting in relatively small quantities of adsorbed η¹-acetone, without observable quantities of enolate. Interestingly, acetate and formate signatures appear in the spectra of cubic, surface η¹-enolate containing, SrTiO₃ upon illumination, while besides acetate and formate, the formation of (surface) formaldehyde was observed on truncated cubes, and dodecahedrons, by conversion of adsorbed η¹-acetone. Time-Resolved Photoluminescence studies demonstrate that the lifetimes of photogenerated charge carriers vary with crystal morphology. The shortest carrier lifetime (τ₁ = 33 ± 0.1 ps) was observed in {110}-truncated cube SrTiO₃, likely due to a relatively strong built-in electric field promoting electron transport to {100} facets and hole transport to {110} facets. The second lifetime (τ₂ = 259 ± 1 ps) was also the shortest for this morphology, possibly due to a higher amount of surface trap states. Our results demonstrate that SrTiO₃ crystal morphology can be tuned to optimize performance in photocatalytic oxidation.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12862","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836013","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Machine Learning Speeds Up the Discovery of Efficient Porphyrinoid Electrocatalysts for Ammonia Synthesis","authors":"Wenfeng Hu,&nbsp;Bingyi Song,&nbsp;Liming Yang","doi":"10.1002/eem2.12888","DOIUrl":"https://doi.org/10.1002/eem2.12888","url":null,"abstract":"<p>Two-dimensional transition metal porphyrinoid materials (2DTMPoidMats), due to their unique electronic structure and tunable metal active sites, have the potential to enhance interactions with nitrogen molecules and promote the protonation process, making them promising electrochemical nitrogen reduction reaction (eNRR) electrocatalysts. Experimentally screening a large number of catalysts for eNRR catalytic performance would consume considerable time and economic resources. First-principles calculations and machine learning (ML) algorithms could greatly improve the efficiency of catalyst screening. Using this approach, we selected 86 candidates capable of catalyzing eNRR from 1290 types of 2DTMPoidMats, and verified the results with density functional theory (DFT) computations. Analysis of the full reaction pathway shows that MoPp-meso-F-β-Py, MoPp-β-Cl-meso-Diyne, MoPp-meso-Ethinyl, and WPp-β-Pz exhibit the best catalytic performance with the onset potential of −0.22, −0.19, −0.23, and −0.35 V, respectively. This work provides valuable insights into efficient design and screening of eNRR catalysts and promotes the application of ML algorithmic models in the field of catalysis.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12888","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143835847","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Surface Engineering of Borophene as Next-Generation Materials for Energy and Environmental Applications","authors":"Seyedeh Sadrieh Emadian,&nbsp;Silvia Varagnolo,&nbsp;Ajay Kumar,&nbsp;Prashant Kumar,&nbsp;Pranay Ranjan,&nbsp;Viktoriya Pyeshkova,&nbsp;Naresh Vangapally,&nbsp;Nicholas P. Power,&nbsp;Sudhagar Pitchaimuthu,&nbsp;Alexander Chroneos,&nbsp;Saianand Gopalan,&nbsp;Prashant Sonar,&nbsp;Satheesh Krishnamurthy","doi":"10.1002/eem2.12881","DOIUrl":"https://doi.org/10.1002/eem2.12881","url":null,"abstract":"<p>This review provides an insightful and comprehensive exploration of the emerging 2D material borophene, both pristine and modified, emphasizing its unique attributes and potential for sustainable applications. Borophene's distinctive properties include its anisotropic crystal structures that contribute to its exceptional mechanical and electronic properties. The material exhibits superior electrical and thermal conductivity, surpassing many other 2D materials. Borophene's unique atomic spin arrangements further diversify its potential application for magnetism. Surface and interface engineering, through doping, functionalization, and synthesis of hybridized and nanocomposite borophene-based systems, is crucial for tailoring borophene's properties to specific applications. This review aims to address this knowledge gap through a comprehensive and critical analysis of different synthetic and functionalisation methods, to enhance surface reactivity by increasing active sites through doping and surface modifications. These approaches optimize diffusion pathways improving accessibility for catalytic reactions, and tailor the electronic density to tune the optical and electronic behavior. Key applications explored include energy systems (batteries, supercapacitors, and hydrogen storage), catalysis for hydrogen and oxygen evolution reactions, sensors, and optoelectronics for advanced photonic devices. The key to all these applications relies on strategies to introduce heteroatoms for tuning electronic and catalytic properties, employ chemical modifications to enhance stability and leverage borophene's conductivity and reactivity for advanced photonics. Finally, the review addresses challenges and proposes solutions such as encapsulation, functionalization, and integration with composites to mitigate oxidation sensitivity and overcome scalability barriers, enabling sustainable, commercial-scale applications.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12881","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836063","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Recycling Polyvinyl Chloride (PVC) Pipe Wastes into PVC/ZnO Nanofiber-Based Triboelectric Nanogenerators","authors":"Shabnam Yavari,&nbsp;Merey Sembay,&nbsp;Yersaiyn Bushanov,&nbsp;Zhumabay Bakenov,&nbsp;Mehdi Shafiee,&nbsp;Gulnur Kalimuldina","doi":"10.1002/eem2.12884","DOIUrl":"https://doi.org/10.1002/eem2.12884","url":null,"abstract":"<p>Recycling plastic waste into triboelectric nanogenerators (TENGs) presents a sustainable approach to energy harvesting, self-powered sensing, and environmental remediation. This study investigates the recycling of polyvinyl chloride (PVC) pipe waste polymers into nanofibers (NFs) optimized for TENG applications. We focused on optimizing the morphology of recycled PVC polymer to NFs and enhancing their piezoelectric properties by incorporating ZnO nanoparticles (NPs). The optimized PVC/0.5 wt% ZnO NFs were tested with Nylon-6 NFs, and copper (Cu) electrodes. The Nylon-6 NFs exhibited a power density of 726.3 μW cm⁻²—1.13 times higher than Cu and maintained 90% stability after 172 800 cycles, successfully powering various colored LEDs. Additionally, a 3D-designed device was developed to harvest energy from biomechanical movements such as finger tapping, hand tapping, and foot pressing, making it suitable for wearable energy harvesting, automatic switches, and invisible sensors in surveillance systems. This study demonstrates that recycling polymers for TENG devices can effectively address energy, sensor, and environmental challenges.</p>","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 3","pages":""},"PeriodicalIF":13.0,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.12884","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143836062","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}