IF 11.6 2区材料科学

Carbon Pub Date : 2026-03-05 Epub Date: 2026-02-19 DOI: 10.1016/j.carbon.2026.121338

Akiko Yoshida , Tetsuji Itoh , Hirotomo Nishihara

引用次数: 0

Amido-tailored self-template with internal porosity and self-doping toward N-doped porous carbons scaffold for silane deposition 具有内部孔隙度和自掺杂的酰胺定制自模板用于氮掺杂多孔碳支架沉积硅烷

IF 11.6 2区材料科学

Carbon Pub Date : 2026-03-05 Epub Date: 2026-02-09 DOI: 10.1016/j.carbon.2026.121361

Qiqi Shu , Wei He , Shiyu Tang , Miao Zhang , Zhengwei Xie

{"title":"Amido-tailored self-template with internal porosity and self-doping toward N-doped porous carbons scaffold for silane deposition","authors":"Qiqi Shu , Wei He , Shiyu Tang , Miao Zhang , Zhengwei Xie","doi":"10.1016/j.carbon.2026.121361","DOIUrl":"10.1016/j.carbon.2026.121361","url":null,"abstract":"<div><div>Porous carbons have demonstrated significant potential due to their abundant pore structure and customizable surface chemistry for silane deposition. This study presents a novel molecular design strategy to prepare N-doped porous carbons, centered on constructing self-template precursors with internal porosity and N self-doping properties. The precursor is synthesized through a stepwise process involving: (1) the polymerization of ethylenediamine and succinic acid, (2) cross-linking with epichlorohydrin, and (3) hydrolysis of amide bonds. Subsequently, the internal porosity of the precursor is further developed and enhanced through chemical activation, resulting in N-doped porous carbon (ABPC@x). Systematic investigation revealed that the molar ratio (x) of amino to carboxyl groups is a key parameter determining the ratio of hydrolysis sites available for pore formation and crosslinking sites responsible for structural stabilization, thereby influencing crosslinking density, N retention, and microstructure. The optimal sample, [email protected], which achieves a well-balanced ratio between hydrolysis and crosslinking sites, exhibits a high specific surface area of 1758 m<sup>2</sup>/g, a total pore volume of 0.90 cm<sup>3</sup>/g, pore size distribution of 0.5 ∼ 3.0 nm, and a single-particle compressive strength of ∼80 MPa. When used as a carbon scaffold for silane deposition, the resulting silicon/carbon anode demonstrates favorable initial electrochemical performance, with a charge capacity of 1718.32 mAh/g and an initial coulombic efficiency of 90.15%. This work not only validates the feasibility of combining self-template precursor design with chemical activation but also provides a valuable reference for the diversified preparation of porous carbons.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"251 ","pages":"Article 121361"},"PeriodicalIF":11.6,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171400","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electronic effects of localized strain in graphene 石墨烯中局部应变的电子效应

IF 11.6 2区材料科学

Carbon Pub Date : 2026-03-05 Epub Date: 2026-02-04 DOI: 10.1016/j.carbon.2026.121343

Zviadi Zarkua , Robin Smeyers , Aleksandr Seliverstov , Renan Villarreal , Ahmed Samir Lotfy , Rikkie Joris , Muhammad Saad , Hung-Chieh Tsai , Stefan De Gendt , Steven Brems , Steven De Feyter , Felix Junge , Hans Hofsäss , Giovanni Di Santo , Luca Petaccia , Simona Achilli , E. Harriet Åhlgren , François M. Peeters , Milorad V. Milošević , Lucian Covaci , Lino M.C. Pereira

{"title":"Electronic effects of localized strain in graphene","authors":"Zviadi Zarkua , Robin Smeyers , Aleksandr Seliverstov , Renan Villarreal , Ahmed Samir Lotfy , Rikkie Joris , Muhammad Saad , Hung-Chieh Tsai , Stefan De Gendt , Steven Brems , Steven De Feyter , Felix Junge , Hans Hofsäss , Giovanni Di Santo , Luca Petaccia , Simona Achilli , E. Harriet Åhlgren , François M. Peeters , Milorad V. Milošević , Lucian Covaci , Lino M.C. Pereira","doi":"10.1016/j.carbon.2026.121343","DOIUrl":"10.1016/j.carbon.2026.121343","url":null,"abstract":"<div><div>Strain is a key tuning parameter in solid-state systems, but most studies focus on strain fields extending over tens of nanometers or more. Here we investigate the extreme limit of ultra-localized strain in graphene, introduced through bond defects generated by ultralow-energy implantation of noble gas ions. Using molecular dynamics simulations, Raman spectroscopy, and scanning tunneling microscopy, we identify the formation and thermal stability of bond defects that locally stretch only a few C<img>C bonds without removing or substituting atoms. Tight-binding calculations reveal that such bond defects induce local charge trapping, leading to substantial Fermi-level shifts. Synchrotron-based angle-resolved photoemission spectroscopy directly confirms these predictions: even at modest defect densities (<span><math><mrow><mo>∼</mo><mn>1</mn><msup><mrow><mn>0</mn></mrow><mrow><mn>12</mn></mrow></msup><mspace></mspace><msup><mrow><mi>cm</mi></mrow><mrow><mo>−</mo><mn>2</mn></mrow></msup></mrow></math></span>), the graphene Fermi level shifts by up to 0.3 eV. This strong effect is remarkable given that it is achieved without altering graphene’s composition, in contrast to conventional impurity doping or vacancy formation. Upon thermal annealing, the electronic structure recovers towards the pristine state, showing that these effects can be tuned and reversed. Our results establish bond defects as a new class of functional disorder in graphene, capable of strongly modifying its electronic properties solely by bond rearrangement.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"251 ","pages":"Article 121343"},"PeriodicalIF":11.6,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171469","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Zirconium metal-organic framework decorated polyacrylonitrile derivative composite fibers via electrospinning: construction of a continuous conductive network for integrated electromagnetic wave absorption, radar stealth and thermal insulation 静电纺丝金属锆-有机骨架装饰聚丙烯腈衍生物复合纤维：构建集电磁波吸收、雷达隐身和隔热于一体的连续导电网络

IF 11.6 2区材料科学

Carbon Pub Date : 2026-03-05 Epub Date: 2026-01-31 DOI: 10.1016/j.carbon.2026.121325

Xue Yi , Quan Wang , Ruiwen Shu , Xiaoqing Zhao , Run Huang , Konghu Tian , Xiaoli Ji , Zhijian Yan

{"title":"Zirconium metal-organic framework decorated polyacrylonitrile derivative composite fibers via electrospinning: construction of a continuous conductive network for integrated electromagnetic wave absorption, radar stealth and thermal insulation","authors":"Xue Yi , Quan Wang , Ruiwen Shu , Xiaoqing Zhao , Run Huang , Konghu Tian , Xiaoli Ji , Zhijian Yan","doi":"10.1016/j.carbon.2026.121325","DOIUrl":"10.1016/j.carbon.2026.121325","url":null,"abstract":"<div><div>Metal-organic framework (MOF) has become a highly promising electromagnetic wave (EMW) absorbing material due to its tunable composition and microstructure characteristics. This work systematically investigated the impact of two approaches for integrating Zr-MOF with polyacrylonitrile (PAN) on the electromagnetic properties of composite materials. One approach involved growing Zr-MOF on the surface of the pre-spun PAN fibers through the aqueous-phase synthesis method (ex-CNFs/ZrO<sub>2</sub>/C), while the other method was to directly embed the pre-synthesized Zr-MOF into the PAN fibers matrix prepared by electrospinning (in-CNFs@ZrO<sub>2</sub>/C). The resulting continuous three-dimensional network structure after calcination provided an effective pathway for electron transport, enhancing conduction loss of in-CNFs@ZrO<sub>2</sub>/C. Furthermore, the numerous heterointerfaces formed among carbon nanofibers, ZrO<sub>2</sub> nanoparticles and residual carbon significantly boosted interfacial polarization loss. This combined effect led to outstanding EMW absorption performance at a low filling ratio of 11 wt%. The optimal minimum reflection loss of in-CNFs@ZrO<sub>2</sub>/C was −66.85 dB at 3.18 mm, and a broad effective absorption bandwidth of 6.72 GHz was achieved at 2.29 mm. Additionally, the system demonstrated excellent thermal insulation performance and superior radar cross section reduction capability. Therefore, the as-prepared composite fibers could be utilized as multifunctional EMW absorbers.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"251 ","pages":"Article 121325"},"PeriodicalIF":11.6,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Autonomous adhesion enhancement of two-dimensional materials driven by interfacial evolution 界面演化驱动的二维材料自主粘附增强

IF 11.6 2区材料科学

Carbon Pub Date : 2026-03-05 Epub Date: 2026-02-06 DOI: 10.1016/j.carbon.2026.121355

Haojie Lang , Peipei Xu , Nannan Xia , Cong Li , Haoyang Su , Ruling Chen , Yao Huang , Kun Zou , Yitian Peng

{"title":"Autonomous adhesion enhancement of two-dimensional materials driven by interfacial evolution","authors":"Haojie Lang , Peipei Xu , Nannan Xia , Cong Li , Haoyang Su , Ruling Chen , Yao Huang , Kun Zou , Yitian Peng","doi":"10.1016/j.carbon.2026.121355","DOIUrl":"10.1016/j.carbon.2026.121355","url":null,"abstract":"<div><div>Adhesion is a fundamental property of two-dimensional (2D) materials due to their intrinsic ultrahigh surface-to-volume ratio, making adhesion very strong in many processes related to fabrication, integration, and performance of devices incorporating 2D materials. Here, time-dependent adhesion between 2D materials, including graphene, molybdenum disulfide, and hexagonal boron nitride, and silicon dioxide is investigated. The logarithmic increase in adhesion with contact time is attributed to the out-of-plane deformation of the topmost layer of 2D materials, which surpasses interlayer interactions, as revealed by van der Waals force calculations and density functional theory calculations of interfacial binding energy. Over time, the topmost layer spontaneously conforms to the contact surface, resulting in enhanced adhesion. Additionally, adhesion enhancement accelerates in high relative humidity environments, as the hydrogen bonding of water molecules strengthens the interfacial interaction. These studies based on experimental characterizations and computational analysis reveal that the adhesion of 2D materials is dynamic and can autonomously increase over time, driven by van der Waals force-induced interfacial evolution. This dynamic adhesion behavior is critical for the design and performance of 2D material-based electronic devices, lubricating coatings, sensors, and related applications.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"251 ","pages":"Article 121355"},"PeriodicalIF":11.6,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

High-yield inner-outer wall separation of double-wall carbon nanotubes via Nafion-temperature synergistic modulation 纳米温度协同调制双壁碳纳米管的高产率内外壁分离

IF 11.6 2区材料科学

Carbon Pub Date : 2026-03-05 Epub Date: 2026-01-31 DOI: 10.1016/j.carbon.2026.121323

Dehua Yang , Xiaofei Yang , Donghui Zhang , Xuan Chang , Jiayi Xing , Qing Gao , Xuning Zhang , Xueliang Yang , Jianxin Guo , Wei Xi , Huaping Liu , Jianhui Chen

{"title":"High-yield inner-outer wall separation of double-wall carbon nanotubes via Nafion-temperature synergistic modulation","authors":"Dehua Yang , Xiaofei Yang , Donghui Zhang , Xuan Chang , Jiayi Xing , Qing Gao , Xuning Zhang , Xueliang Yang , Jianxin Guo , Wei Xi , Huaping Liu , Jianhui Chen","doi":"10.1016/j.carbon.2026.121323","DOIUrl":"10.1016/j.carbon.2026.121323","url":null,"abstract":"<div><div>Double-wall carbon nanotubes (DWCNTs) offer promising properties for electronics and photovoltaics, and exhibit unique physical properties distinct from single-wall carbon nanotubes (SWCNTs). However, both fundamental and applied research on DWCNTs have been limited by the lack of scalable methods for producing high-purity DWCNTs with uniform electronic type. Here, we report a high-yield separation method based on Nafion-assisted, temperature-controlled selective adsorption chromatography. Using this strategy, S@S, M@S, S@M, and M@M DWCNTs were obtained with a total yield of 58 mg per batch from mixed SWCNT/DWCNT samples. We further evaluated the separation purity of inner and outer walls. The outer-wall purities exceeded 95% for S@S and 98% for the other three types, with inner-wall purities of 90% (S@S), 88% (M@S), 81% (S@M), and 92% (M@M). In this method, Nafion-induced selective protonation creates electronic-type-dependent differences in surface charge and surfactant coverage, and elevated temperature further enhances this Nafion-induced effect, thus amplifying the differences in surfactant coverage of various DWCNTs and enabling precise control of their selective adsorption onto gel. This work marks a major advance towards scalable preparation of high-purity DWCNTs with identical electronic type and demonstrates the advantage of selective adsorption chromatography for their separation. It lays the groundwork for inner/outer wall chirality resolution and future studies on DWCNT properties and device applications.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"251 ","pages":"Article 121323"},"PeriodicalIF":11.6,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171543","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Advances on multi-heteroatom doped carbon catalysts: Synthesis, mechanistic insight, synergies, and application in microbial electrochemical energy, fuel and chemical production 多杂原子掺杂碳催化剂的合成、机理、协同作用及其在微生物电化学能源、燃料和化工生产中的应用研究进展

IF 11.6 2区材料科学

Carbon Pub Date : 2026-03-05 Epub Date: 2026-02-03 DOI: 10.1016/j.carbon.2026.121315

Seyed Masoud Parsa , Seyed Mohammad Reza Miraboutalebi , Shahin Shoeibi , Xinbo Zhang , Jixiang Li , Huu Hao Ngo , Wenshan Guo , Bing-Jie Ni

{"title":"Advances on multi-heteroatom doped carbon catalysts: Synthesis, mechanistic insight, synergies, and application in microbial electrochemical energy, fuel and chemical production","authors":"Seyed Masoud Parsa , Seyed Mohammad Reza Miraboutalebi , Shahin Shoeibi , Xinbo Zhang , Jixiang Li , Huu Hao Ngo , Wenshan Guo , Bing-Jie Ni","doi":"10.1016/j.carbon.2026.121315","DOIUrl":"10.1016/j.carbon.2026.121315","url":null,"abstract":"<div><div>Multi-heteroatom doping strategy emerged as a promising approach to overcome the limitations of carbon electrocatalysts through providing synergistic effects to tune electronic structures, increase/optimize active sites, improve stability, enhance biocompatibility and conductivity. This review provides a comprehensive analysis on progress in multi-heteroatom doped carbon electrocatalysts in microbial electrochemical technologies (METs) for wastewater treatment toward power generation, biohydrogen production, and CO<sub>2</sub> valorization through microbial fuel cells (MFCs), microbial electrolysis cells (MECs), and microbial electrosynthesis (MESs) respectively. Initially, the synthesis strategies from template-free pyrolysis and templating methods to advance MOF-derived and self-sacrificial routes were briefly summarized. Following, mechanistic insights by focusing on integration of advanced theoretical calculations and operando characterizations to understand how multi-doping tailor adsorption energies, charge redistribution, and intermediate stabilization in key electrocatalytic reactions such as the oxygen reduction reaction (ORR), hydrogen evolution reaction (HER), and CO<sub>2</sub> reduction reaction (CO<sub>2</sub>RR) were thoroughly elucidated. Importantly, the structure–function relationships that link dopant type, coordination environment, and defect engineering with catalytic activity, durability, and selectivity were further elaborated. Finally, the current challenges and future research directions for designing advanced high-performance electrocatalysts toward sustainable practical METs were suggested.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"251 ","pages":"Article 121315"},"PeriodicalIF":11.6,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171538","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Selective homoepitaxial growth of buried diamond films with NV centers 具有NV中心的埋藏金刚石薄膜的选择性同外延生长

IF 11.6 2区材料科学

Carbon Pub Date : 2026-03-05 Epub Date: 2026-01-29 DOI: 10.1016/j.carbon.2026.121307

K. Hayashi , Y. Nakamura , M. Katayama , K. Shimamura , R. Yoshida , K. Kobayashi , K. Ichikawa , T. Yoshikawa , T. Matsumoto , T. Inokuma , S. Yamasaki , C.E. Nebel , N. Tokuda

{"title":"Selective homoepitaxial growth of buried diamond films with NV centers","authors":"K. Hayashi , Y. Nakamura , M. Katayama , K. Shimamura , R. Yoshida , K. Kobayashi , K. Ichikawa , T. Yoshikawa , T. Matsumoto , T. Inokuma , S. Yamasaki , C.E. Nebel , N. Tokuda","doi":"10.1016/j.carbon.2026.121307","DOIUrl":"10.1016/j.carbon.2026.121307","url":null,"abstract":"<div><div>We develop a buried-growth process for NV centers based on microwave plasma chemical vapor deposition that integrates selective etching and growth in a single process. Au/Ti metal masks patterned on (100) and (111) diamond substrates define micrometer-scale regions where the diamond is selectively etched by an H<sub>2</sub>+N<sub>2</sub> plasma, followed by local CVD growth of NV-doped diamond within the etched regions, thereby enabling selective buried formation of NV centers. Confocal fluorescence imaging shows that NV centers are selectively buried in patterned regions on both (100) and (111) diamonds. Optically detected magnetic resonance under a static field applied from the backside of the substrates reveals that highly aligned NV centers are formed in the buried regions of the (111) diamond. X-ray diffraction measurements indicate the formation of Ti<sub>2</sub>N at the Au/Ti/diamond during H<sub>2</sub>+N<sub>2</sub> plasma processing, which we identify as the origin of the improved hydrogen resistance. The CVD diamond-layer buried-growth process demonstrated here provides a robust and versatile route to selectively buried NV centers and is readily extendable to buried doped layers for future diamond-based electronic and quantum devices.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"251 ","pages":"Article 121307"},"PeriodicalIF":11.6,"publicationDate":"2026-03-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146171540","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Film-type carbon nanotube thermal interface materials for advanced thermal management: A study on interfacial resistance 用于高级热管理的薄膜型碳纳米管热界面材料：界面阻力研究

IF 11.6 2区材料科学

Carbon Pub Date : 2026-02-20 Epub Date: 2026-01-17 DOI: 10.1016/j.carbon.2026.121288

Tomoki Okumura , Takayuki Nakano , Yoku Inoue

{"title":"Film-type carbon nanotube thermal interface materials for advanced thermal management: A study on interfacial resistance","authors":"Tomoki Okumura , Takayuki Nakano , Yoku Inoue","doi":"10.1016/j.carbon.2026.121288","DOIUrl":"10.1016/j.carbon.2026.121288","url":null,"abstract":"<div><div>Carbon nanotubes (CNTs) possess high thermal conductivity and mechanical flexibility, making them promising candidates for thermal interface materials (TIMs) for high-density heat-generating components requiring heat dissipation solutions. In this study, we fabricated a film-type CNT-TIM by sandwiching a thin polyphenylene sulfide (PPS) film between two opposing CNT forests. The transient thermal response, analyzed using the thermal structure function, revealed a low thermal resistance of 0.7 cm<sup>2</sup>K/W at a contact pressure of 100 kPa, including the interfacial contact thermal resistance with the heat source and heat sink. This performance is comparable to TIMs with CNTs grown directly on both sides of Cu or Al foils, and to conventional thermal grease. These results indicate that the thermal resistance of the contact interface is the dominant factor over the bulk material. The CNT-TIM with the PPS interlayer demonstrated a stable and robust solid-state TIM as a substitute for thermal grease. This research offers an effective manufacturing process to advance the practical application of CNT-based TIMs.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"250 ","pages":"Article 121288"},"PeriodicalIF":11.6,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025426","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Design and synthesis of core-shell Fe4N@C nanowires for efficient electromagnetic wave absorption and corrosion resistance 高效电磁波吸收和耐腐蚀的核壳纳米线Fe4N@C的设计与合成

IF 11.6 2区材料科学

Carbon Pub Date : 2026-02-20 Epub Date: 2026-01-23 DOI: 10.1016/j.carbon.2026.121306

Shuting Zhang , Chengguo Wang , Meijie Yu

{"title":"Design and synthesis of core-shell Fe4N@C nanowires for efficient electromagnetic wave absorption and corrosion resistance","authors":"Shuting Zhang , Chengguo Wang , Meijie Yu","doi":"10.1016/j.carbon.2026.121306","DOIUrl":"10.1016/j.carbon.2026.121306","url":null,"abstract":"<div><div>To further enhance electromagnetic wave absorption capability and the marine corrosion resistance of ferromagnetic metallic materials, a dual-strategy approach combining the construction of the one-dimensional core-shell structure with Fe<sub>4</sub>N phase transition was proposed. Through in-situ phenolic resin polymerization on Fe nanowire followed by carbonization-nitridation, core-shell Fe<sub>4</sub>N@C nanowires were synthesized, where Fe<sub>4</sub>N particles were successfully confined within high-aspect-ratio carbon shells. Distinctive structural and composition design optimized impedance matching and endowed the material with multiple loss mechanisms, including significant conductive loss, interfacial polarization, defect-induced dipole polarization and magnetic loss. Owing to a more balanced dielectric-magnetic synergistic loss relationship, the thicker-shell sample FWCN-2 achieved an impressive minimum reflection loss of −60.51 dB and a maximum effective absorption bandwidth of 7.28 GHz (2.65 mm, 10.72–18.00 GHz) at low filler loading, demonstrating outstanding electromagnetic wave absorption performance. Moreover, by Fe<sub>4</sub>N phase transformation, FWCN-2 exhibited enhanced corrosion resistance in marine environments (<em>E</em><sub><em>corr</em></sub> = −0.13V, <em>I</em><sub><em>corr</em></sub> = 2.63 μA/cm<sup>2</sup>). This work offered a scalable and structure-guided route to lightweight, broadband, and corrosion-resistant electromagnetic wave absorbers.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"250 ","pages":"Article 121306"},"PeriodicalIF":11.6,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146025432","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

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