Carbon最新文献

{"title":"Multifunctional high entropy metal/metal oxide hybrid nanostructures-embedded carbon nanofiber composites for electrochemical energy storage","authors":"Da-Yeon Kim ,&nbsp;Jiwoo Song ,&nbsp;Yoong Ahm Kim ,&nbsp;Myung Hwa Kim ,&nbsp;Bo-Hye Kim","doi":"10.1016/j.carbon.2025.120414","DOIUrl":"10.1016/j.carbon.2025.120414","url":null,"abstract":"<div><div>Carbon nanofibers (CNF) containing high-entropy metal/metal oxide hybrid (HEMMOs) nanostructures are fabricated by electrospinning to improve the overall electrochemical performance. The HEMMO nanostructures have an unique configuration that represents the formation of a single phase metallic alloy nanoparticles consisting of the Fe, Co, Ni, and Cu elements on the surface of manganese oxide-CNF composites structure. The porosity and crystallinity of HEMMOs in the HEMMO/CNF composites were carefully controlled by varying the concentration of metal acetic acid precursors and the oxidation stabilization time, and their electrochemical performances were compared. The optimized HEMMO/CNF hybrid materials deliver a specific capacitance of 215 Fg^-1 at 1 mAcm⁻² with 75 % specific capacitance retention in a symmetric two-electrode cell using a 6 M KOH electrolyte. It also shows a maximum energy density of 26.0 Whkg⁻¹ at power densities of 400 Wkg^-1 along with excellent cycling stability of 90 % retention at 1 mAcm⁻² after 10,000 cycles. An asymmetric device exhibits a high energy density of 41 Whkg⁻¹ at a power density of 400 Wkg^-1, and a stable energy density of 23 Whkg⁻¹ even at a high power density of 10,000 Wkg^-1 when the operating voltage was increased to 1.4 V. The porous structure of HEMMO/CNF containing crystalline high entropy metal nanoparticles significantly enhances the stored charge capacity due to the synergistic effects of more redox-active sites and unique 3D diffusion channels into the electrolyte.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120414"},"PeriodicalIF":10.5,"publicationDate":"2025-05-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144105120","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}

{"title":"Effects of chemical structure of mesogenic components on the mechanical properties of mesophase pitch-based carbon fiber","authors":"Taisei Tomaru ,&nbsp;Yasufumi Awakura ,&nbsp;Masaru Kotajima ,&nbsp;Toshihira Irisawa ,&nbsp;Seung-Jae Ha ,&nbsp;Young-Pyo Jeon ,&nbsp;Koji Nakabayashi ,&nbsp;Jin Miyawaki ,&nbsp;Seong-Ho Yoon","doi":"10.1016/j.carbon.2025.120428","DOIUrl":"10.1016/j.carbon.2025.120428","url":null,"abstract":"<div><div>Carbon fiber (CF) is a high-performance material with a wide range of industrial applications due to its light weight and excellent mechanical properties. Mesophase pitch (MP)-based CF (MPCF) is a type of CF with superior mechanical properties. Precursor MP is complex, with multiple components, and recent studies have revealed its lyotropic liquid crystal properties. The solvent components in the lyotropic liquid crystal are important for facilitating the technically challenging melt spinning of MP, and the concentration of mesogenic components influences the mechanical properties of the resulting MPCF. However, the effects of different mesogenic components on the physicochemical characteristics of MP and the mechanical properties of MPCF remain unclear. This study was performed to investigate how the characteristics of mesogenic components in MP affect the mechanical properties of MPCF. Precursor MPs were prepared using mesogenic components extracted from three different naphthalene-based, coal tar-based, and petroleum-based parent MPs, combined with a specific solvent component at the same concentration. The structure of the mesogenic components influenced MP formation with the solvent component. Mesogenic components containing naphthenic ring structures exhibited high affinity and stacking properties with the solvent component. Mechanical evaluations revealed that the tensile strength and Young's modulus of the resulting graphitized fibers varied depending on the properties of the mesogenic components. Notably, mesogenic components containing naphthenic ring structures led to the formation of larger crystallites in the graphitized fibers, enhancing their tensile strength (maximum tensile strength of 4.0 GPa) and Young's modulus (maximum Young's modulus of 618 GPa).</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120428"},"PeriodicalIF":10.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098567","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}

{"title":"Functionalized nanoporous biocarbon derived from garlic waste for enhanced CO2 capture and supercapacitor performance","authors":"Jefrin M. Davidraj ,&nbsp;C.I. Sathish ,&nbsp;Ajanya M. Ruban ,&nbsp;Vibin Perumalsamy ,&nbsp;Vishnumaya Narayanan ,&nbsp;Xiaojiang Yu ,&nbsp;Mark B.H. Breese ,&nbsp;Jiabao Yi ,&nbsp;Ajayan Vinu","doi":"10.1016/j.carbon.2025.120409","DOIUrl":"10.1016/j.carbon.2025.120409","url":null,"abstract":"<div><div>Nanoporous activated biocarbons derived from biomass offer a sustainable alternative to traditional carbon materials in various applications. Even though multiple methods are available to prepare these carbon materials with different biomasses and activating agents, there are still many challenges such as optimizing pore structure, surface functionalization control, and maintaining high electrical conductivity which are critical to achieve high performance in energy storage applications. These challenges can be overcome by choosing the appropriate biomass with different chemical structure and composition. Herein, we use food waste garlic to synthesize nanoporous biocarbon through the activation process using potassium hydroxide (KOH) as an activating agent. The resulting biocarbon exhibited a high specific surface area of 3449.2 m² g⁻¹ and a pore volume of 1.67 cm³ g⁻¹, together with sulfur and oxygen functionalities. Pyrolysis was employed to fine-tune the pore structure, achieving a balance of microporosity and mesoporosity, which are beneficial for energy storage and carbon capture applications. The nanostructured materials delivered exceptional CO₂ adsorption capacity at low (5.25 mmol/g at 1 bar) and high pressure (30.6 and 24.9 mmol/g at 0 and 25 °C at 30 bar), making it a promising sorbent for both post-combustion and pre-combustion CO₂ capture. The breakthrough studies combined with the dynamic adsorption models like the Yoon-Nelson and Thomas models demonstrated superior CO₂ capture and rate constant for practical applications. Furthermore, the biocarbon revealed excellent electrochemical performance as a supercapacitor electrode with a specific capacitance of 262 F/g at 0.5 A g⁻¹ and stability over 10,000 cycles with excellent retention and coulombic efficiency. The presence of oxygen and sulfur functionalities enhanced hydrophilicity and wettability, contributing to the superior electrochemical performance. The study highlights the potential of functionalized nanoporous biocarbon with a tunable porous structure derived from waste biomass as a sustainable and efficient material for CO₂ capture and energy storage applications.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120409"},"PeriodicalIF":10.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098572","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}

{"title":"Graphene-based multi-channel OOK communication with frequency-multiplexed switchable metasurface","authors":"Parsa Farzin ,&nbsp;Kasra Rouhi ,&nbsp;Seyed Ehsan Hosseininejad","doi":"10.1016/j.carbon.2025.120375","DOIUrl":"10.1016/j.carbon.2025.120375","url":null,"abstract":"<div><div>Programmable metasurfaces have recently attracted considerable interest for their versatile applications in areas such as beam steering, holography, and wireless communications, utilizing either phase or amplitude modulation. Despite this, programmable amplitude coding modulation has seen limited exploration, primarily due to the difficulties involved in achieving real-time dynamic amplitude control. Here, we propose a reprogrammable amplitude-coding metasurface utilizing the on–off keying (OOK) method combined with frequency modulation. To the best of our knowledge, this is the first study to simultaneously address both the metasurface design and the theoretical investigation of OOK simultaneously, considering all parameters present in the design, channel, and on–off ratio. The proposed metasurface comprises two graphene layers with separate biasing voltages. By controlling the chemical potential of each layer, we can independently modulate the amplitude in two states at two different frequencies through a field-programmable gate array (FPGA). This bias-driven control allows the device to operate actively and reconfigure its response in real-time. In addition, we employ an information encryption method using the substitution cipher method and transmit it at two amplitude levels at distinct frequencies to safeguard transmission information against eavesdropping. Simulation and numerical results convincingly demonstrate that the proposed reprogrammable metasurface facilitates secure communication in multi-channel data encryption, terahertz (THz) data storage, information processing, and THz communication.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120375"},"PeriodicalIF":10.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144154639","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}

{"title":"Design strategies and research progress of macrostructure graphene-based electromagnetic shielding materials","authors":"Wenjie Zhu,&nbsp;Ruoyao Feng,&nbsp;Zhengxuan Li,&nbsp;Wang Yang,&nbsp;Chen Zhang,&nbsp;Shaoxiong Du,&nbsp;Zhongzhen Ding,&nbsp;Ziyang Cao,&nbsp;Junyan Dong,&nbsp;Lingyu Kong,&nbsp;Yongfeng Li","doi":"10.1016/j.carbon.2025.120432","DOIUrl":"10.1016/j.carbon.2025.120432","url":null,"abstract":"<div><div>The proliferation of electromagnetic technologies and emergence of 5G communications have heightened concerns about electromagnetic interference (EMI) and radiation, which are increasingly jeopardizing human health and the operation of precision instruments. Electromagnetic shielding material is an indispensable part of modern technological development, and graphene has become an ideal candidate for EMI shielding due to its excellent electrical properties and structural advantages. In this paper, we first introduce the electromagnetic shielding mechanism, and then comprehensively review the recent progress of macrostructure graphene-based materials in the field of EMI research. The relationships between different structure preparation methods and shielding properties are systematically analyzed, with special emphasis on the effects of various macrostructure building strategies on material properties. Finally, the future development and challenges of graphene EMI materials are expected and summarized.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120432"},"PeriodicalIF":10.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098611","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}

{"title":"Confined assembly of magnetic Fe3O4/carbon microspheres with enhanced wave absorption performance","authors":"Ruonan Li ,&nbsp;Zelin Zhang ,&nbsp;Xiao Li ,&nbsp;Zhongming Liu ,&nbsp;Haowei Zhou ,&nbsp;Xinyue Zhang ,&nbsp;Di Zhou ,&nbsp;Aibing Chen ,&nbsp;Lei Xie","doi":"10.1016/j.carbon.2025.120418","DOIUrl":"10.1016/j.carbon.2025.120418","url":null,"abstract":"<div><div>The escalating use of electronic devices in civil and military sectors has led to severe electromagnetic interference issues due to excessive electromagnetic radiation, impacting both equipment functionality and human well-being. Addressing this, electromagnetic wave absorption materials, particularly magnetic carbon superstructures, offer a dual loss mechanism suitable for microwave absorption, gaining much attention. In this work, through a polyelectrolyte-assisted assembly strategy, magnetic carbon superstructures (MCSSs) with high performance characteristics such as ultra-wide effective absorption bandwidth and minimal reflection loss have been developed. Detailed structural analyses through microscopy, XRD, elemental analysis, and magnetic studies confirm the successful synthesis of MCSSs with hierarchically porous structures, high specific surface areas of 476.6 m² g⁻¹, total pore volume of 0.27 cm³ g⁻¹, and notable ferromagnetic properties. Each independently existing spherical MCSSs can be viewed as a separate confined space, in which well-dispersed homogeneous magnetic particles exist, which greatly improves the undesirable condition of local impedance matching imbalance caused by agglomeration of magnetic components due to intrinsic magnetic properties. Finally, the MCSSs hold excellent microwave absorption of −62.23 dB and radar cross section attenuation of 16.80 dB m². These findings underscore the potential of magnetic carbon superstructures in advancing electromagnetic wave absorption technologies and highlight the importance of tailored design for optimizing material properties.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120418"},"PeriodicalIF":10.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098506","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}

{"title":"All-in-One: One radioactive uranium detergent integrated decontamination and real-time detection based on carbon quantum dots and diethylenetriaminepentaacetic acid","authors":"Qi He ,&nbsp;Miaomiao Yao ,&nbsp;Xiaoyang Kang ,&nbsp;Yameng Tao ,&nbsp;Fangkai Shi ,&nbsp;Yutong Liang ,&nbsp;Shanshan Wang ,&nbsp;Zhiyun Meng ,&nbsp;Hui Gan ,&nbsp;Ruolan Gu ,&nbsp;Guifang Dou ,&nbsp;Shuchen Liu ,&nbsp;Yunbo Sun","doi":"10.1016/j.carbon.2025.120421","DOIUrl":"10.1016/j.carbon.2025.120421","url":null,"abstract":"<div><div>During on-site nuclear rescue and treatment, efficiently carrying out decontamination operations and conducting rapid detection after decontamination are the key points in nuclear decontamination work. However, the existing decontamination and detection are divided into different steps and the decontamination effect needs to be judged by means of special instruments, which hinder the nuclear rescue work to a certain extent. To effectively solve this problem, a novel detergent (CQDs-DTPA) was developed by doping diethylenetriaminepentaacetic acid (DTPA) onto the surface of carbon quantum dots (CQDs) through an amidation reaction. The decontaminating effect of CQDs-DTPA on UO₂²⁺ reached 76.8 %, which is better than that of the clinical certification DTPA (decontaminating effect of 71.3 %). CQDs-DTPA is highly selective and sensitive to UO₂²⁺, and fluorescence quenching occurs after 10 s of exposure. During the decontamination process, it can be found that the fluorescence intensity of CQDs-DTPA increases with the removal of uranium and eventually returns to the initial value, which indicates the real-time monitoring role of CQDs-DTPA. In addition, safety experimental evaluations fully confirmed the safety of CQDs-DTPA in practical applications. This study indicated that CQDs-DTPA could serve as a radioactive uranium detergent with real-time detection of the decontamination effect, which could also provide a reference for developing other radionuclides' rapid decontamination agents.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120421"},"PeriodicalIF":10.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098568","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}

{"title":"Revisiting the nomenclature for two-dimensional carbon materials","authors":"Mary Gulumian ,&nbsp;Bengt Fadeel","doi":"10.1016/j.carbon.2025.120430","DOIUrl":"10.1016/j.carbon.2025.120430","url":null,"abstract":"","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120430"},"PeriodicalIF":10.5,"publicationDate":"2025-05-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144114859","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}

{"title":"Dual-function graphene sensor as an ion-sensitive field-effect transistor and ion-sensitive electrode for arsenite detection","authors":"Yingming Xu,&nbsp;Peng Zhou,&nbsp;Terrence Simon,&nbsp;Tianhong Cui","doi":"10.1016/j.carbon.2025.120419","DOIUrl":"10.1016/j.carbon.2025.120419","url":null,"abstract":"<div><div>Arsenite (As³⁺) contamination in water poses significant health risks, including cancer and cardiovascular diseases, demanding advanced detection technologies for effective management. Here, we introduce a dual-function graphene (DFG) sensor that operates as an ion-selective field-effect transistor (G-ISFET) for high-sensitivity arsenite detection and as an ion-selective electrode (G-ISE) for practical, potential long-term monitoring. Featuring an arsenite-selective membrane (As-ISM) with a specific ionophore, the sensor achieves sub-Nernstian sensitivities of 15 mV/decade (G-ISFET mode) and 17 mV/decade (G-ISE mode), along with a wide detection range (0.1 ppt–10 ppb) and a response time of 15 s. Field validation in lake, well, and tap water samples yielded recovery of 86%–122%, demonstrating robust real-world performance. By addressing key limitations of current technologies, this scalable, dual-mode sensor advances arsenite monitoring, supporting improved water quality and promoting better health outcomes in low-resource settings.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120419"},"PeriodicalIF":10.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144070785","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}

{"title":"In-situ laser-irradiation induced robust macroscale superlubricity","authors":"Cheng Chen ,&nbsp;Zhixin Zhang ,&nbsp;Fan Lei ,&nbsp;Haifeng Weng ,&nbsp;Peidong Xue ,&nbsp;Dongfeng Diao","doi":"10.1016/j.carbon.2025.120424","DOIUrl":"10.1016/j.carbon.2025.120424","url":null,"abstract":"<div><div>Superlubricity can be realized either by structural incommensurate contact between crystalline surfaces or by creating highly passive surfaces to cancel out the adhesive forces. However, fabricating and maintaining such superlubric surfaces remain challenges, often disabled by surface structural defects or susceptibility to atmospheric environment, which renders superlubricity fragile. Here, we propose a novel strategy of photoelectron superlubricity (PESL), where robust macroscale superlubricity can be achieved in ambient humid environment by in-situ laser-irradiating the contact interface of an amorphous carbon film. We demonstrate that PESL not only exhibits a high resistance to environmental disturbances but also features rapid response. The formation of PESL originates from the laser-irradiation induced formation of nanographene-layered interface and enrichment of photoelectrons at the interface, resulting in a repulsive electric field between the nanographene layers. The discovery of PESL opens a new avenue for achieving superlubricity, and provides novel insights for smart friction and mechanical motion control.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"242 ","pages":"Article 120424"},"PeriodicalIF":10.5,"publicationDate":"2025-05-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144098623","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}