Pub Date : 2026-02-10Epub Date: 2025-12-30DOI: 10.1016/j.carbon.2025.121219
Xianlang Chen , Yuyao Wang , Chengkang Zhou , Chunhua Chen , Yuqi Kang , Fuxiang Fan , Yijing Gao , Tongyang Song , Rongrong Li
Developing the catalysts to enhance the activity and selectivity of semihydrogenation of alkyne has enormous potential in fine chemical industry, but still full of significant challenges. In this work, the Pd/C3N4-EW catalyst with heterojunction and N vacancies was prepared by two-step calcination method and impregnation method. When the semihydrogenation of phenylacetylene was used as the probe reaction, the Pd/C3N4-EW demonstrated excellent conversion and selectivity, and achieved low activation energy (Ea = 25.7 kJ mol−1) and high turnover frequency value (TOF = 5388.3 h−1). This catalyst has high activity and selectivity after six cycles, and has a wide range of applications in alkynes. The superior activity of Pd/C3N4-EW was mainly due to the heterojunction and N vacancies structure of the catalyst, which enhance the dispersion of Pd metal active sites, regulate the electronic structure of Pd, and enhance material transport. Particularly, experiments and density functional theory (DFT) calculations indicated that more electron transfer from Pd to C3N4-EW on the Pd/C3N4-EW, resulting in Pd having a more electron-deficient structure. Therefore, the adsorption of phenylacetylene and H2 by Pd active sites can be increased, which is beneficial for the activation of H2 and thereby promotes the selective hydrogenation of phenylacetylene.
{"title":"Heterojunction and N vacancies of C3N4-EW regulate the electronic structure of Pd to promote the semihydrogenation of phenylacetylene","authors":"Xianlang Chen , Yuyao Wang , Chengkang Zhou , Chunhua Chen , Yuqi Kang , Fuxiang Fan , Yijing Gao , Tongyang Song , Rongrong Li","doi":"10.1016/j.carbon.2025.121219","DOIUrl":"10.1016/j.carbon.2025.121219","url":null,"abstract":"<div><div>Developing the catalysts to enhance the activity and selectivity of semihydrogenation of alkyne has enormous potential in fine chemical industry, but still full of significant challenges. In this work, the Pd/C<sub>3</sub>N<sub>4</sub>-EW catalyst with heterojunction and N vacancies was prepared by two-step calcination method and impregnation method. When the semihydrogenation of phenylacetylene was used as the probe reaction, the Pd/C<sub>3</sub>N<sub>4</sub>-EW demonstrated excellent conversion and selectivity, and achieved low activation energy (E<sub>a</sub> = 25.7 kJ mol<sup>−1</sup>) and high turnover frequency value (TOF = 5388.3 h<sup>−1</sup>). This catalyst has high activity and selectivity after six cycles, and has a wide range of applications in alkynes. The superior activity of Pd/C<sub>3</sub>N<sub>4</sub>-EW was mainly due to the heterojunction and N vacancies structure of the catalyst, which enhance the dispersion of Pd metal active sites, regulate the electronic structure of Pd, and enhance material transport. Particularly, experiments and density functional theory (DFT) calculations indicated that more electron transfer from Pd to C<sub>3</sub>N<sub>4</sub>-EW on the Pd/C<sub>3</sub>N<sub>4</sub>-EW, resulting in Pd having a more electron-deficient structure. Therefore, the adsorption of phenylacetylene and H<sub>2</sub> by Pd active sites can be increased, which is beneficial for the activation of H<sub>2</sub> and thereby promotes the selective hydrogenation of phenylacetylene.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121219"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882721","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}
Pub Date : 2026-02-10Epub Date: 2026-01-05DOI: 10.1016/j.carbon.2026.121238
Rutong Yang , Jian Yin , Yu Liu , Hu Zhang , Rui Zhang , Ruiqiang Huo , Chen Yang , Danfeng Li , Jiao Yin , Feng Yu , Hui Zhu
Hard carbon (HC) represents a promising anode material for Na-ion batteries endowed by its unique amorphous and porous structure for Na-ion storage. Pyrolysis process of precursors at low temperatures critically influences the HC structure by modulating the transformation of gas, liquid, and solid phases, yet its mechanistic impact remains poorly understood. Herein, the heating rate during low-temperature pyrolysis is investigated for the HC structure evolution and Na-ion storage performance. By increasing the heating rate, the thermochemical kinetics of pyrolysis process can be enhanced, facilitating non-carbonaceous (H, O, etc.) atom removal. When an ultrafast heating rate is applied, high pyrolysis kinetics promote the generation of thermally stable ester functional groups, thereby inhibiting the aromatic aggregation and facilitate to form random carbon skeleton. Furthermore, the ester functional groups decompose into volatiles at high-temperature carbonization, resulting in porous structure suitable for Na-ion storage. The optimized HC achieves a reversible capacity of 426.2 mAh g−1 with an initial Coulombic efficiency of 88.7 %. The investigation elucidates the structural evolution mechanism by heating rate modulation during pyrolysis, providing a straightforward strategy for industrially applicable HC production.
硬碳（HC）具有独特的非晶多孔结构，是一种很有前途的钠离子电池负极材料。前驱体低温热解过程通过调节气、液、固相的转变对HC结构产生重要影响，但其机理尚不清楚。本文研究了低温热解过程中升温速率对HC结构演变和na离子储存性能的影响。通过提高升温速率，可以增强热解过程的热化学动力学，有利于非碳质（H、O等）原子的去除。当采用超快的加热速率时，高的热解动力学促进热稳定的酯官能团的生成，从而抑制芳香族聚集，有利于形成随机碳骨架。此外，酯官能团在高温碳化时分解为挥发物，形成适合na离子储存的多孔结构。优化后的HC的可逆容量为426.2 mAh g−1，初始库仑效率为88.7%。该研究阐明了热解过程中加热速率调节的结构演化机制，为工业上应用的HC生产提供了一个简单的策略。
{"title":"Hard carbon engineering via pyrolysis heating rate: tailoring amorphous and porous structure for highly reversible sodium-ion storage","authors":"Rutong Yang , Jian Yin , Yu Liu , Hu Zhang , Rui Zhang , Ruiqiang Huo , Chen Yang , Danfeng Li , Jiao Yin , Feng Yu , Hui Zhu","doi":"10.1016/j.carbon.2026.121238","DOIUrl":"10.1016/j.carbon.2026.121238","url":null,"abstract":"<div><div>Hard carbon (HC) represents a promising anode material for Na-ion batteries endowed by its unique amorphous and porous structure for Na-ion storage. Pyrolysis process of precursors at low temperatures critically influences the HC structure by modulating the transformation of gas, liquid, and solid phases, yet its mechanistic impact remains poorly understood. Herein, the heating rate during low-temperature pyrolysis is investigated for the HC structure evolution and Na-ion storage performance. By increasing the heating rate, the thermochemical kinetics of pyrolysis process can be enhanced, facilitating non-carbonaceous (H, O, etc.) atom removal. When an ultrafast heating rate is applied, high pyrolysis kinetics promote the generation of thermally stable ester functional groups, thereby inhibiting the aromatic aggregation and facilitate to form random carbon skeleton. Furthermore, the ester functional groups decompose into volatiles at high-temperature carbonization, resulting in porous structure suitable for Na-ion storage. The optimized HC achieves a reversible capacity of 426.2 mAh g<sup>−1</sup> with an initial Coulombic efficiency of 88.7 %. The investigation elucidates the structural evolution mechanism by heating rate modulation during pyrolysis, providing a straightforward strategy for industrially applicable HC production.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121238"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940266","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}
Pub Date : 2026-02-10Epub Date: 2026-01-21DOI: 10.1016/j.carbon.2025.121190
Kong Xiang-qing , Ban Tian-yi , Zhang Xiao-meng , Qiao Wan-fu , Hou Bo , Jia Dong-zhou
{"title":"A REVIEW OF THE DISPERSION OF GRAPHENE IN CEMENTITIOUS COMPOSITES AND ITS MECHANISMS FOR IMPROVING MECHANICAL PROPERTIES AND DURABILITY","authors":"Kong Xiang-qing , Ban Tian-yi , Zhang Xiao-meng , Qiao Wan-fu , Hou Bo , Jia Dong-zhou","doi":"10.1016/j.carbon.2025.121190","DOIUrl":"10.1016/j.carbon.2025.121190","url":null,"abstract":"","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121190"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034821","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}
Pub Date : 2026-02-10Epub Date: 2026-01-11DOI: 10.1016/j.carbon.2026.121263
Congcong Zhu , Wenhui Jin , Jingna Wang , Yu Zhu , Kai Nan , Yan Wang
Cellulose aerogels are emerging as a promising next-generation material due to their outstanding thermal insulation properties and lightweight characteristics. However, their limited functionality poses challenges for practical applications. The development of high-performance, multifunctional microwave-absorbing aerogels has become a significant challenge. This study presents the design of CNF/MXene@NC-CoFe2O4 aerogels via a one-pot method combined with freeze-drying. This innovative approach facilitates the integration of multiple functions, including microwave absorption, thermal insulation, hydrophobicity, and corrosion resistance. The aerogel features a robust cellulose nanofiber (CNF) framework that provides mechanical reinforcement, while the MXene component establishes a continuous conductive network. Additionally, the incorporated NC-CoFe2O4 nanoparticles contribute magnetic loss capability. As a result, the aerogel demonstrates outstanding performance with a low filler content of only 10 wt%, achieving a minimum reflection loss (RLmin) of −75.2 dB at 2.3 mm and an effective absorption bandwidth (EAB) of 7.8 GHz at a thickness of 2.5 mm. Its highly porous structure and surface modification engineering confer outstanding thermal insulation, anticorrosion ability, and hydrophobic properties. This study offers novel insights into designing high-performance aerogels for diverse applications, including electromagnetic absorption, thermal management, antiseptic solutions, and hydrophobic treatment.
{"title":"One-stop multifunctional cellulose aerogel integrating mechanical strength, hydrophobicity, heat insulation and microwave absorption","authors":"Congcong Zhu , Wenhui Jin , Jingna Wang , Yu Zhu , Kai Nan , Yan Wang","doi":"10.1016/j.carbon.2026.121263","DOIUrl":"10.1016/j.carbon.2026.121263","url":null,"abstract":"<div><div>Cellulose aerogels are emerging as a promising next-generation material due to their outstanding thermal insulation properties and lightweight characteristics. However, their limited functionality poses challenges for practical applications. The development of high-performance, multifunctional microwave-absorbing aerogels has become a significant challenge. This study presents the design of CNF/MXene@NC-CoFe<sub>2</sub>O<sub>4</sub> aerogels via a one-pot method combined with freeze-drying. This innovative approach facilitates the integration of multiple functions, including microwave absorption, thermal insulation, hydrophobicity, and corrosion resistance. The aerogel features a robust cellulose nanofiber (CNF) framework that provides mechanical reinforcement, while the MXene component establishes a continuous conductive network. Additionally, the incorporated NC-CoFe<sub>2</sub>O<sub>4</sub> nanoparticles contribute magnetic loss capability. As a result, the aerogel demonstrates outstanding performance with a low filler content of only 10 wt%, achieving a minimum reflection loss (RL<sub>min</sub>) of −75.2 dB at 2.3 mm and an effective absorption bandwidth (EAB) of 7.8 GHz at a thickness of 2.5 mm. Its highly porous structure and surface modification engineering confer outstanding thermal insulation, anticorrosion ability, and hydrophobic properties. This study offers novel insights into designing high-performance aerogels for diverse applications, including electromagnetic absorption, thermal management, antiseptic solutions, and hydrophobic treatment.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121263"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973825","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}
Layered double hydroxides (LDHs) featuring various large-sized interlayer anions, namely, chloride ions, acetate ions and dodecyl sulfate ions, were successfully synthesized through ion-exchange procedures. Anion-functionalized LDHs were integrated with carbon black (CB) to construct microcapacitors, demonstrating potential applications in microwave absorption. The microwave absorption properties of the composites were enhanced by virtue of the conductive percolation networks of CB and the dipole polarization of microcapacitors. To further refine the microcapacitor structure, oxidized CB and exfoliated LDH nanosheets were assembled via electrostatic attraction. This strategic combination elevated the reflection loss of the composite to −61.1 dB, and an effective absorption bandwidth of 6.43 GHz was achieved at a thickness of 2.1 mm with a filler loading of 8 wt%. In addition, the flexural strength and impact strength of the composite were improved to 59.1 ± 13.1 MPa and 90.5 ± 5.9 kJ/m2, respectively. By taking advantage of the versatile tunability of LDHs (including anion exchange, exfoliation, and reassembly of exfoliated nanosheets), microwave absorbing materials with excellent electromagnetic wave attenuation performance were elaborately fabricated. This methodology provides new insights into the design and optimization of integrated structural-microwave absorbing composites.
{"title":"Construction of integrated structural-microwave absorbing composites: Layered double hydroxide exfoliation-reassembly strategy","authors":"Wanxin Hu, Xiaohu Ren, Hongfeng Yin, Yun Tang, Hudie Yuan","doi":"10.1016/j.carbon.2026.121241","DOIUrl":"10.1016/j.carbon.2026.121241","url":null,"abstract":"<div><div>Layered double hydroxides (LDHs) featuring various large-sized interlayer anions, namely, chloride ions, acetate ions and dodecyl sulfate ions, were successfully synthesized through ion-exchange procedures. Anion-functionalized LDHs were integrated with carbon black (CB) to construct microcapacitors, demonstrating potential applications in microwave absorption. The microwave absorption properties of the composites were enhanced by virtue of the conductive percolation networks of CB and the dipole polarization of microcapacitors. To further refine the microcapacitor structure, oxidized CB and exfoliated LDH nanosheets were assembled via electrostatic attraction. This strategic combination elevated the reflection loss of the composite to −61.1 dB, and an effective absorption bandwidth of 6.43 GHz was achieved at a thickness of 2.1 mm with a filler loading of 8 wt%. In addition, the flexural strength and impact strength of the composite were improved to 59.1 ± 13.1 MPa and 90.5 ± 5.9 kJ/m<sup>2</sup>, respectively. By taking advantage of the versatile tunability of LDHs (including anion exchange, exfoliation, and reassembly of exfoliated nanosheets), microwave absorbing materials with excellent electromagnetic wave attenuation performance were elaborately fabricated. This methodology provides new insights into the design and optimization of integrated structural-microwave absorbing composites.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121241"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940279","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}
Pub Date : 2026-02-10Epub Date: 2025-12-29DOI: 10.1016/j.carbon.2025.121215
Raul D. Rodriguez , Pavel Bakholdin , Tuan-Hoang Tran , Elizaveta Dogadina , Dmitry Cheshev , Dmitry Kogolev , Maxim Fatkullin , Jin-Ju Chen , Tian Ma , Shuang Li , Chong Cheng , Evgeniya Sheremet
Conventional fabrication of integrated carbon electronics often requires material deposition or transfer, which inevitably leads to surface contamination and structural defects. Here, we present a monolithic “Write-Rewrite-Direct” approach for in situ sequential programming of carbon's optical, electrical, and chemical properties from a single parent graphite crystal, overcoming the challenges of material transfer. First, we introduce Catalyst-Enhanced Electrochemical Lithography (CEEL), an acid-free route that exploits MoS2 electrocatalysis to "write" atomically smooth epitaxy-like graphene oxide (GO) directly onto graphite. In contrast to conventional electrochemical oxidation of graphite, which yields rough surfaces, CEEL produces mechanically robust, vivid photonic structures with intense structural colors. We validate this monolithic integration by fabricating the first all-carbon field-effect transistor with a vertical gate-dielectric-channel configuration, without any lithographic patterning of contacts or lift-off processes. Second, we "rewrite" these films with a tightly focused laser to produce laser-reduced graphene oxide (LrGO) vertical interconnects. This enables us to draw all-carbon free-form, high-resolution LrGO circuits within the larger, electrochemically defined GO structure. Finally, we exploit this hierarchical control to "direct" the selective assembly of plasmonic nanostructures onto the LrGO patterns, integrating plasmonic microreactors and chemical sensing capabilities. This "Write-Rewrite-Direct" paradigm is a potential enabler of next-generation all-carbon electronics, offering a maskless route to creating dynamic, reconfigurable surfaces, including field-effect transistors and advanced sensing and photocatalytic platforms monolithically integrated in a single device.
{"title":"Writing, rewriting, and directing matter on a graphene canvas","authors":"Raul D. Rodriguez , Pavel Bakholdin , Tuan-Hoang Tran , Elizaveta Dogadina , Dmitry Cheshev , Dmitry Kogolev , Maxim Fatkullin , Jin-Ju Chen , Tian Ma , Shuang Li , Chong Cheng , Evgeniya Sheremet","doi":"10.1016/j.carbon.2025.121215","DOIUrl":"10.1016/j.carbon.2025.121215","url":null,"abstract":"<div><div>Conventional fabrication of integrated carbon electronics often requires material deposition or transfer, which inevitably leads to surface contamination and structural defects. Here, we present a monolithic “Write-Rewrite-Direct” approach for in situ sequential programming of carbon's optical, electrical, and chemical properties from a single parent graphite crystal, overcoming the challenges of material transfer. First, we introduce Catalyst-Enhanced Electrochemical Lithography (CEEL), an acid-free route that exploits MoS<sub>2</sub> electrocatalysis to \"write\" atomically smooth epitaxy-like graphene oxide (GO) directly onto graphite. In contrast to conventional electrochemical oxidation of graphite, which yields rough surfaces, CEEL produces mechanically robust, vivid photonic structures with intense structural colors. We validate this monolithic integration by fabricating the first all-carbon field-effect transistor with a vertical gate-dielectric-channel configuration, without any lithographic patterning of contacts or lift-off processes. Second, we \"rewrite\" these films with a tightly focused laser to produce laser-reduced graphene oxide (LrGO) vertical interconnects. This enables us to draw all-carbon free-form, high-resolution LrGO circuits within the larger, electrochemically defined GO structure. Finally, we exploit this hierarchical control to \"direct\" the selective assembly of plasmonic nanostructures onto the LrGO patterns, integrating plasmonic microreactors and chemical sensing capabilities. This \"Write-Rewrite-Direct\" paradigm is a potential enabler of next-generation all-carbon electronics, offering a maskless route to creating dynamic, reconfigurable surfaces, including field-effect transistors and advanced sensing and photocatalytic platforms monolithically integrated in a single device.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121215"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940278","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}
Pub Date : 2026-02-10Epub Date: 2026-01-05DOI: 10.1016/j.carbon.2026.121240
Ruige Su , Misheng Liang , Xiaoguang Zhao , Wenqiang Xing , Yimeng Jiang , Xiaomeng Bian , Mengyao Tian , Xiaoyang Zhou , He Tian , Rui You
The widespread use of advanced radar and electronic systems drives the need for ultrathin, lightweight, and broadband electromagnetic (EM) absorbers. In response, we designed a femtosecond-laser-induced NiFe2O4@MXene composite graphene (LINFMG) that incorporates a honeycomb structure, abundant C–N dipoles, and multiple heterogeneous interfaces. EM waves undergo multiple reflections within the honeycomb structure of graphene and interact with heterogeneous interfaces, dipoles, and magnetic materials on the pore walls. Through the synergistic enhancement of multi-mechanism coupling, LINFMG achieves record-breaking EM absorption performance among all laser-induced graphene-based materials while maintaining an ultrathin characteristic. The optimal reflection loss of LINFMG has been reduced to −68.2 dB, with an optimal effective absorption bandwidth (EAB) reaching 6.8 GHz. LINFMG also demonstrates radar cross-section (RCS) reduction, achieving a maximum value of 31.22 dB m2. This study provides valuable insights into the design and facile one-step fabrication of advanced graphene-based EM wave absorbers.
先进雷达和电子系统的广泛应用推动了对超薄、轻量化和宽带电磁（EM）吸收器的需求。为此，我们设计了一种飞秒激光诱导NiFe2O4@MXene复合石墨烯（LINFMG），它具有蜂窝结构、丰富的C-N偶极子和多个非均相界面。电磁波在石墨烯的蜂窝结构内经历多次反射，并与孔壁上的非均质界面、偶极子和磁性材料相互作用。通过多机制耦合的协同增强，LINFMG在保持超薄特性的同时，在所有激光诱导石墨烯基材料中实现了破纪录的EM吸收性能。LINFMG的最佳反射损耗降至- 68.2 dB，最佳有效吸收带宽（EAB）达到6.8 GHz。LINFMG还显示雷达横截面（RCS）降低，达到31.22 dB m2的最大值。该研究为先进的石墨烯基电磁波吸收器的设计和一步制造提供了有价值的见解。
{"title":"Broadband electromagnetic wave absorption by ultrathin graphene honeycombs with multicomponent heterointerfaces","authors":"Ruige Su , Misheng Liang , Xiaoguang Zhao , Wenqiang Xing , Yimeng Jiang , Xiaomeng Bian , Mengyao Tian , Xiaoyang Zhou , He Tian , Rui You","doi":"10.1016/j.carbon.2026.121240","DOIUrl":"10.1016/j.carbon.2026.121240","url":null,"abstract":"<div><div>The widespread use of advanced radar and electronic systems drives the need for ultrathin, lightweight, and broadband electromagnetic (EM) absorbers. In response, we designed a femtosecond-laser-induced NiFe<sub>2</sub>O<sub>4</sub>@MXene composite graphene (<strong>LINFMG</strong>) that incorporates a honeycomb structure, abundant C–N dipoles, and multiple heterogeneous interfaces. EM waves undergo multiple reflections within the honeycomb structure of graphene and interact with heterogeneous interfaces, dipoles, and magnetic materials on the pore walls. Through the synergistic enhancement of multi-mechanism coupling, <strong>LINFMG</strong> achieves record-breaking EM absorption performance among all laser-induced graphene-based materials while maintaining an ultrathin characteristic. The optimal reflection loss of <strong>LINFMG</strong> has been reduced to −68.2 dB, with an optimal effective absorption bandwidth (EAB) reaching 6.8 GHz. <strong>LINFMG</strong> also demonstrates radar cross-section (RCS) reduction, achieving a maximum value of 31.22 dB m<sup>2</sup>. This study provides valuable insights into the design and facile one-step fabrication of advanced graphene-based EM wave absorbers.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121240"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145940272","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}
Pub Date : 2026-02-10Epub Date: 2026-01-21DOI: 10.1016/j.carbon.2025.121193
Li Xiao-tian , Yuan Ren-lu , Zhang Jia-yao , Zhang Jia-peng , Guo Lie-wen , Zhang Hong-chuan , Liu Hai-yan , Li Ang , Fan Cheng-wei , Chen Xiao-hong , Song Huai-he
{"title":"INCREASING THE CLOSED-PORE VOLUME IN HARD CARBONS FOR SODIUM-ION BATTERIES BY THE ADDITION OF GRAPHENE OXIDE IN AN EMULSION SYSTEM","authors":"Li Xiao-tian , Yuan Ren-lu , Zhang Jia-yao , Zhang Jia-peng , Guo Lie-wen , Zhang Hong-chuan , Liu Hai-yan , Li Ang , Fan Cheng-wei , Chen Xiao-hong , Song Huai-he","doi":"10.1016/j.carbon.2025.121193","DOIUrl":"10.1016/j.carbon.2025.121193","url":null,"abstract":"","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121193"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034906","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}
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