Energy & Environmental Materials最新文献

Oxidation of Methacrolein to Methacrylic Acid over Cu, P, Mo, V-Composites 甲基丙烯在Cu， P, Mo， v复合材料上氧化生成甲基丙烯酸

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-07-18 DOI: 10.1002/eem2.70091

Weihua Wang, Wenjie Xu, Nan Zhang, Mingming Chen, Jingqing Zhang, Hongxing Liu, Jianqiang Wang, Yongfeng Hu

{"title":"Oxidation of Methacrolein to Methacrylic Acid over Cu, P, Mo, V-Composites","authors":"Weihua Wang, Wenjie Xu, Nan Zhang, Mingming Chen, Jingqing Zhang, Hongxing Liu, Jianqiang Wang, Yongfeng Hu","doi":"10.1002/eem2.70091","DOIUrl":"https://doi.org/10.1002/eem2.70091","url":null,"abstract":"The purpose of this study is to develop novel P-Mo-V heteropoly compound catalysts for the oxidation of methacrolein to methacrylic acid. The introduction of Cu, as a modifying element, was employed to enhance the catalytic performance. Experimental results show that the addition of Cu significantly improved the catalyst performance, increasing the conversion rate of methacrolein from 17.2% to 84.2%, while the yield of methacrylic acid was boosted from 5.5% to 51.7%. A series of characterization results showed that both P-Mo-V and Cu-P-Mo-V catalysts primarily exhibited the crystal phase of [PMo12O40]3−, with a small amount of [PMo11VO40]3− phase. However, the Cu-P-Mo-V catalyst exhibited much better oxidation–reduction ability compared to the P-Mo-V catalyst. Isolated Cu atoms were found to exist in a highly decentralized tetrahedral coordination structure, bridged by oxygen atoms within the heteropoly compound framework. The addition of Cu resulted in notable alterations in the modulation of the surface electronic structure, enhancement of oxidation–reduction ability, and optimization of the reaction pathway, thereby improving the overall catalytic activity of the catalyst. This study not only provides new insights into the modification of P-Mo-V heteropoly compound catalysts but also lays a foundation for understanding their catalytic mechanisms in organic synthesis reactions, demonstrating the potential of modifying elements in improving catalyst performance.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-07-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70091","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773960","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}

引用次数: 0

MoS2–WS2 Heterostructures with Vertical Nanosheets for Enhanced Photocatalytic Hydrogen Generation through Morphology-Controlled Chemical Vapor Deposition 具有垂直纳米片的MoS2-WS2异质结构通过形态控制化学气相沉积增强光催化制氢

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-06-17 DOI: 10.1002/eem2.70055

Dong-Bum Seo, Jin Kim, Young Min Jo, Dong In Kim, Tae Gyeong Lim, Saewon Kang, Soonmin Yim, Sun Sook Lee, Eui-Tae Kim, Ki-Seok An

{"title":"MoS2–WS2 Heterostructures with Vertical Nanosheets for Enhanced Photocatalytic Hydrogen Generation through Morphology-Controlled Chemical Vapor Deposition","authors":"Dong-Bum Seo, Jin Kim, Young Min Jo, Dong In Kim, Tae Gyeong Lim, Saewon Kang, Soonmin Yim, Sun Sook Lee, Eui-Tae Kim, Ki-Seok An","doi":"10.1002/eem2.70055","DOIUrl":"https://doi.org/10.1002/eem2.70055","url":null,"abstract":"Constructing a nanostructure that combines abundant active edge sites with a well-designed heterostructure is an effective strategy for enhancing photocatalytic hydrogen generation. However, controllable approaches for creating heterostructures based on vertically standing transition metal dichalcogenide (TMD) nanosheets remain insufficient despite their potential for efficient hydrogen production. In this paper, we present efficient photocatalysts featuring heterojunctions composed of vertically grown TMD (MoS2 and WS2) nanosheets. These structures (WS2, MoS2, and MoS2/WS2 heterostructure) were fabricated using a controllable metal–organic chemical vapor deposition method, which expanded the surface area and facilitated effective photocatalytic hydrogen evolution. The vertical MoS2/WS2 heterostructures demonstrated significantly enhanced hydrogen generation, driven by the synergistic effects of improved light absorption, a large specific surface area, and appropriately arranged staggered heterojunctions. Furthermore, the photocatalytic activity was considerably influenced by the size and density of the vertical nanosheets. Consequently, the nanosheet size-tailored MoS2/WS2 heterostructure achieved a photocatalytic hydrogen generation rate (454.2 μmol h−1 cm−2), which is 2.02 times and 2.19 times higher than that of WS2 (225.6 μmol h−1 cm−2) and MoS2 (207.2 μmol h−1 cm−2). Hence, the proposed strategy can be used to design staggered heterojunctions with edge-rich nanosheets for photocatalytic applications.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70055","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773469","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}

引用次数: 0

Waste Coffee Grounds-Derived Micropores Carbon Framework as an Efficient Iodine Host for Zinc Iodine Battery 废咖啡渣微孔碳骨架作为锌碘电池的高效碘载体

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-06-16 DOI: 10.1002/eem2.70045

Lingfeng Zhu, Xinwei Guan, Peng Li, Yibo Ma, Zhenfang Zhang, Zhilong Yuan, Congcong Zhang, Ye Wang, Hui Li, Baohua Jia, Hai Yu, Yifei Sun, Tianyi Ma

{"title":"Waste Coffee Grounds-Derived Micropores Carbon Framework as an Efficient Iodine Host for Zinc Iodine Battery","authors":"Lingfeng Zhu, Xinwei Guan, Peng Li, Yibo Ma, Zhenfang Zhang, Zhilong Yuan, Congcong Zhang, Ye Wang, Hui Li, Baohua Jia, Hai Yu, Yifei Sun, Tianyi Ma","doi":"10.1002/eem2.70045","DOIUrl":"https://doi.org/10.1002/eem2.70045","url":null,"abstract":"Aqueous zinc-iodine batteries (AZIBs) have attracted significant attention as the most promising next-generation energy storage technology due to their low cost, inherent safety, and high energy density. However, their practical application is hindered by the poor electronic conductivity of iodine cathodes and the severe shuttling effect of intermediate polyiodides. Here, we report a novel micropores carbon framework (MCF) synthesized from waste coffee grounds via a facile carbonization-activation process. The resultant MCF features an ultrahigh specific surface area and a high density of micropores, which not only physically confine iodine species to minimize iodine loss but also enhance the electronic conductivity of the composite cathode. Furthermore, biomass-derived heteroatom dopings (nitrogen functionalities) facilitate effective chemical anchoring of polyiodide intermediates, thereby mitigating the shuttle effect. UV–visible spectroscopy and electrochemical kinetic analyses further confirm the rapid transformation and inhibition mechanism of iodine species by MCF. Consequently, the MCF/I2 cathode delivers superior specific capacities of 238.3 mA h g−1 at 0.2 A g−1 and maintains outstanding cycling performance with a capacity retention of 85.2% after 1200 cycles at 1.0 A g−1. This work not only provides an important reference for the design of high-performance iodine-host porous carbon materials but also explores new paths for the sustainable, high-value utilization of waste biomass resources.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-06-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70045","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774108","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}

引用次数: 0

Suppressing Jahn-Teller Effect of MnO2 via Synergistically Crystalline and Electronic Structural Regulation for Efficient Ammonium Ion Capture 通过协同晶体和电子结构调控抑制MnO2的Jahn-Teller效应，实现有效的铵离子捕获

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-06-09 DOI: 10.1002/eem2.70049

Shuwen Du, Shiyong Wang, Yuhao Lei, Lin Zhao, Gang Wang, Jieshan Qiu

{"title":"Suppressing Jahn-Teller Effect of MnO2 via Synergistically Crystalline and Electronic Structural Regulation for Efficient Ammonium Ion Capture","authors":"Shuwen Du, Shiyong Wang, Yuhao Lei, Lin Zhao, Gang Wang, Jieshan Qiu","doi":"10.1002/eem2.70049","DOIUrl":"https://doi.org/10.1002/eem2.70049","url":null,"abstract":"Layered manganese dioxide (δ-MnO2) is considered a promising ammonium ion capture electrode material for capacitive deionization (CDI) attributed to its high theoretical capacity and cost-effectiveness. Nevertheless, it continues to encounter challenges including rapid capacity degradation, structural instability, and Jahn–Teller effect. Herein, a crystal and electron synergistically regulation engineering strategy is proposed for the suppression of the Jahn–Teller effect and the improvement of ammonium ion storage dynamics in F doped MnO2 (MnOF). The induced action of F ions transforms the MnO2 structure from the original cubic [MnO6] octahedron into an asymmetric [Mn(OF)6] octahedron with electron redistribution, and generates a localized charge imbalance along the O–Mn–F pathway, which promotes electron transfer from Mn to F direction, accelerates electron transfer, and reduces the energy barrier of ammonium ion diffusion. As a result, the prepared MnOF exhibited a maximum salt adsorption capacity of 144.3 mg g−1 and an exceptionally high salt adsorption rate of 18.25 mg g−1 min−1, along with outstanding cycling stability. Besides, ex/in situ characterizations reveal that in MnOF, the formation/breaking of hydrogen bond is accompanied by the insertion/deinsertion of <math>\u0000 <mrow>\u0000 <msubsup>\u0000 <mi>NH</mi>\u0000 <mn>4</mn>\u0000 <mo>+</mo>\u0000 </msubsup>\u0000 </mrow></math>. Therefore, the rational introduction of highly electronegative anions provides a new direction for the development of advanced CDI electrode materials.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70049","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144773488","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}

引用次数: 0

LiBF4-Derived Coating on LiCoO2 for 4.5 V Operation of Li6PS5Cl-Based Solid-State Batteries li6ps5cl基固态电池4.5 V工作用libf4衍生涂层

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-05-30 DOI: 10.1002/eem2.70047

Feng Jin, Ingeborg Sellæg Ellingsen, Laras Fadillah, Quoc Hung Nguyen, Henrik Rotvær Bratlie, Daniel Knez, Gerald Kothleitner, Mir Mehraj Ud Din, Sverre M. Selbach, Günther J. Redhammer, Daniel Rettenwander

{"title":"LiBF4-Derived Coating on LiCoO2 for 4.5 V Operation of Li6PS5Cl-Based Solid-State Batteries","authors":"Feng Jin, Ingeborg Sellæg Ellingsen, Laras Fadillah, Quoc Hung Nguyen, Henrik Rotvær Bratlie, Daniel Knez, Gerald Kothleitner, Mir Mehraj Ud Din, Sverre M. Selbach, Günther J. Redhammer, Daniel Rettenwander","doi":"10.1002/eem2.70047","DOIUrl":"https://doi.org/10.1002/eem2.70047","url":null,"abstract":"Solid-state batteries are attracting considerable attention for their high-energy density and improved safety over conventional lithium-ion batteries. Among solid-state electrolytes, sulfide-based options like Li6PS5Cl are especially promising due to their superior ionic conductivity. However, interfacial degradation between sulfide electrolytes and high-voltage cathodes, such as LiCoO2, limits long-term performance. This study demonstrates that a LiBF4-derived F-rich coating on LiCoO2, applied by immersing LiCoO2 particles in a LiBF4 solution followed by annealing, can significantly enhance performance in Li6PS5Cl-based solid-state batteries. This coating enables stable high-voltage (4.5 V vs Li+/Li) operation, achieving an initial specific capacity of 153.82 mAh g−1 and 87.1% capacity retention over 300 cycles at 0.5C. The enhanced performance stems from the F-rich coating, composed of multiple phases including LiF, CoF2, LixBFyOz, and LixBOy, which effectively suppresses side reactions at the LiCoO2|Li6PS5Cl interface and improves lithium-ion diffusivity, thereby enabling greater Li capacity utilization. Our findings provide a practical pathway for advancing solid-state batteries with high-voltage LiCoO2 cathodes, offering substantial promise for next-generation energy storage systems.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70047","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774038","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}

引用次数: 0

Artificial Intelligence-Driven Innovations in Hydrogen Storage Technology 人工智能驱动的储氢技术创新

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-05-29 DOI: 10.1002/eem2.70041

Yusong Ding, Lele Tong, Xiaolin Liu, Ying Liu, Yan Zhao

{"title":"Artificial Intelligence-Driven Innovations in Hydrogen Storage Technology","authors":"Yusong Ding, Lele Tong, Xiaolin Liu, Ying Liu, Yan Zhao","doi":"10.1002/eem2.70041","DOIUrl":"https://doi.org/10.1002/eem2.70041","url":null,"abstract":"In the global transition towards sustainable energy sources, hydrogen energy has emerged as an indispensable pillar in reshaping the energy landscape, owing to its environmental sustainability, zero emissions, and high efficiency. Nevertheless, the large-scale deployment of hydrogen energy is confronted with substantial technical barriers in storage and transportation. Although contemporary research has shifted focus to the development of highly efficient hydrogen storage materials, conventional material design concepts remain predominantly empirical, typically relying on trial-and-error methodologies. Importantly, the widespread application of artificial intelligence technologies in accelerating materials discovery and optimization has attracted considerable attention. This review provides a comprehensive overview of the latest advancements in hydrogen storage technologies, with an emphasis on the synergistic application of high-throughput screening and machine learning in solid-state hydrogen storage materials. These approaches demonstrate exceptional potential in accurately predicting hydrogen storage properties, optimizing material performance, and accelerating the development of innovative hydrogen storage materials. Specifically, we discuss in detail the essential role of artificial intelligence in developing hydrogen storage materials such as metal hydrides, alloys, carbon materials, metal–organic frameworks, and zeolites. Moreover, underground hydrogen storage is further explored as a scalable renewable energy storage solution, particularly in terms of optimizing storage parameters and performance prediction. By systematically analyzing the limitations of existing hydrogen storage approaches and the transformative potential of artificial intelligence-driven methods, this review offers insights into the discovery and optimization of high-performance hydrogen storage materials, contributing to sustainable global energy development and technological innovation.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-05-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70041","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774074","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}

引用次数: 0

Fluorine-Doped NaTi2(PO4)3 Via Electronic Orbital Modulation and Bandgap Engineering for Aqueous Li/Na/K-Ion Batteries 基于电子轨道调制的氟掺杂NaTi2(PO4)3水溶液锂/钠/钾离子电池带隙工程

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-05-28 DOI: 10.1002/eem2.70043

Tong Xu, Jiaojiao Yu, Junchao Ma, Hongbo Yu, Junling Che, Qixiang Yin, Yukun Xi, Yanyan Cao, Mangmang Shi, Shuting Wang, Wu Wan, Changxin Li, Rui Chen, Jinniu Zhang, Qiyi Zhao, Wei Ren, Mingliang Hu, Xifei Li

{"title":"Fluorine-Doped NaTi2(PO4)3 Via Electronic Orbital Modulation and Bandgap Engineering for Aqueous Li/Na/K-Ion Batteries","authors":"Tong Xu, Jiaojiao Yu, Junchao Ma, Hongbo Yu, Junling Che, Qixiang Yin, Yukun Xi, Yanyan Cao, Mangmang Shi, Shuting Wang, Wu Wan, Changxin Li, Rui Chen, Jinniu Zhang, Qiyi Zhao, Wei Ren, Mingliang Hu, Xifei Li","doi":"10.1002/eem2.70043","DOIUrl":"https://doi.org/10.1002/eem2.70043","url":null,"abstract":"Sodium titanium phosphate (NaTi2(PO4)3, NTP) has emerged as a promising electrode material due to its three-dimensional open framework. This study investigates the use of NTP in aqueous dilute Li+/Na+ electrolytes and extends its application to high-concentration K+ electrolytes. X-ray photoelectron spectroscopy, X-ray absorption near-edge structure analysis, and density functional theory calculations revealed that highly electronegative fluorine partially substitutes for oxygen in the NTP lattice, resulting in the formation of Ti-F bonds. The substitution effectively modulates the electronic structure of Ti4+, alters the local coordination environment, and influences the redox dynamics. Enhanced long-term cycling stability and rate performance were demonstrated across aqueous sodium-ion, lithium-ion, and potassium-ion half-cells. Among the investigated systems, the aqueous sodium-ion system exhibited the best electrochemical performance, characterized by a single, well-defined charge–discharge plateau, stable cycling behavior with 88.7% capacity retention after 500 cycles at 1 A g−1, and an initial specific discharge capacity of 121.7 mAh g−1 at 0.2 A g−1. The results establish F-doped NTP as a promising candidate for advanced energy storage applications in aqueous alkali metal-ion batteries.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70043","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774162","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}

引用次数: 0

Magnetic Layered Double Hydroxide Nanocomposites: Synthesis, Catalytic Performances, Environmental and Biological Applications 磁性层状双氢氧化物纳米复合材料：合成、催化性能、环境和生物应用

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-05-28 DOI: 10.1002/eem2.70015

Mohammad Mavvaji, Ahmed M. Senan, Senem Akkoc

{"title":"Magnetic Layered Double Hydroxide Nanocomposites: Synthesis, Catalytic Performances, Environmental and Biological Applications","authors":"Mohammad Mavvaji, Ahmed M. Senan, Senem Akkoc","doi":"10.1002/eem2.70015","DOIUrl":"https://doi.org/10.1002/eem2.70015","url":null,"abstract":"In the present review, we addressed the synthesis and applications of the magnetic layered double hydroxide nanocomposites in different scientific areas including catalysis, environmental remediation, and biological functions. First, we appraised the varied approaches for the synthesis of layered double hydroxides (LDHs), containing co-precipitation, hydrothermal, sol–gel, ion-exchange, urea hydrolysis, and reconstruction methods. Afterward, we concentrated on the utility of the magnetic LDH-based composites and evaluated their catalytic effectiveness in 4-nitrophenol reduction, coupling reactions, preparation of polycyclic aromatic compounds, and oxidation reactions. Next, the applicability of magnetic LDHs was assessed in the removal of water pollutants and dyes. Ultimately, we discussed the efficiency of magnetic LDH nanocomposites for biological applications like drug delivery. Investigating the obtained results of the reviewed reports demonstrated the auspicious performance of these compounds in all of the above-mentioned fields. Overall, the magnetic LDH-based composites manifested a satisfactory outlook in various scientific areas due to their stability, remarkable flexibility, relatively proper surface area, appropriate adsorption capacity, as well as propitious retrievability and reusability character.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-05-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70015","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774161","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}

引用次数: 0

Ultra-Compact Cellular Structured Bio-Carbon Aerogels Supported PCM for Exceptional Thermal Insulation and Radiation Shielding for Space Applications 超紧凑的细胞结构生物碳气凝胶支持PCM的特殊隔热和辐射屏蔽空间应用

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-05-26 DOI: 10.1002/eem2.70042

Zihao Zhao, Daili Feng, Xinxin Zhang, Yanhui Feng

{"title":"Ultra-Compact Cellular Structured Bio-Carbon Aerogels Supported PCM for Exceptional Thermal Insulation and Radiation Shielding for Space Applications","authors":"Zihao Zhao, Daili Feng, Xinxin Zhang, Yanhui Feng","doi":"10.1002/eem2.70042","DOIUrl":"https://doi.org/10.1002/eem2.70042","url":null,"abstract":"Integrating phase change materials (PCM) into thermal insulation materials offers a novel approach to aerospace thermal protection. Herein, we used waste biomass as a template; by selecting the appropriate carbonization temperature, we obtained carbon aerogels (CCA) with extremely high porosity (95.8%) and high pore volume. After encapsulating PEG2000, we achieved high enthalpy (137.79 J g−1, 91% of pure PEG2000) and low thermal conductivity (0.137 W (m·K)−1, 45% of pure PEG2000). Thanks to the rich hierarchical nano-micro porous structure of CCA and the high latent heat of PEG2000, CCA/PEG exhibits excellent thermal insulation properties (under a heating temperature of 131 °C, the material takes 1400 s to reach its maximum temperature and can be maintained below 65 °C) and cycle performance. Additionally, irradiation destroyed the structure of CCA/PEG, leading to the degradation of PEG and the formation of other carbonyl-containing compounds, which decreased its latent heat (4.2%) and thermal conductivity (16.1%). However, the irradiation-resistant CCA, acting as a protective layer, minimizes the impact of irradiation on PEG2000. Instead, irradiation enhances the hierarchical porous structure of the material, ultimately improving its thermal insulation performance. CCA/PEG has potential application prospects in thermal protection and aerospace and is a strong competitor for high-efficiency thermal insulation materials.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70042","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774022","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}

引用次数: 0

A Faraday Cage-Inspired Triboelectric Nanogenerator Enabled by Alloy Powder Architecture for Self-Powered Ocean Sensing 一种基于合金粉末结构的法拉第笼式摩擦电纳米发电机，用于自供电海洋传感

IF 14.1 2区材料科学

Energy & Environmental Materials Pub Date : 2025-05-26 DOI: 10.1002/eem2.70040

Kequan Xia, Yutao Hao, Penghui Luo, Yu Zhang, Jing Guo, Zhiyuan Zhu

{"title":"A Faraday Cage-Inspired Triboelectric Nanogenerator Enabled by Alloy Powder Architecture for Self-Powered Ocean Sensing","authors":"Kequan Xia, Yutao Hao, Penghui Luo, Yu Zhang, Jing Guo, Zhiyuan Zhu","doi":"10.1002/eem2.70040","DOIUrl":"https://doi.org/10.1002/eem2.70040","url":null,"abstract":"Self-powered sensing technologies are increasingly sought for intelligent and autonomous marine environmental monitoring. A Faraday cage-enabled triboelectric nanogenerator (FC-TENG) is developed by incorporating a FeCoCrNiAl alloy powder layer, enabling efficient harvesting of low-frequency mechanical energy. The quasi-enclosed conductive architecture mimics a Faraday cage, effectively confining electrostatic charges and suppressing edge-induced dissipation, thereby enhancing charge retention. Compared to single-metal triboelectric layers, the FC-TENG exhibits 4.86-, 3.57-, and 2.76-fold increases in open-circuit voltage (VOC, 1276.27 V), short-circuit current (ISC, 63.69 μA), and transferred charge (QSC, 29.55 nC), respectively. Its hydrophobic surface further ensures environmental robustness and stable output under humid conditions. With an optimized load resistance of 60 MΩ, the FC-TENG device achieves a peak power of ~4.08 mW and reliably powers LED arrays and environmental sensors, while enabling efficient energy storage across a wide frequency range. Furthermore, a wave-driven FC-TENG system integrated with wireless communication and visual feedback modules enables real-time marine motion monitoring without external power. This work introduces the Faraday cage–inspired triboelectric device based on microspherical alloy powder, offering enhanced charge retention, humidity tolerance, and dual-mode functionality in power generation and marine wave sensing. The proposed strategy provides a robust and scalable architecture for future self-powered systems operating in harsh environments.","PeriodicalId":11554,"journal":{"name":"Energy & Environmental Materials","volume":"8 5","pages":""},"PeriodicalIF":14.1,"publicationDate":"2025-05-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://onlinelibrary.wiley.com/doi/epdf/10.1002/eem2.70040","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144774025","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}

引用次数: 0