IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-25 DOI: 10.1016/j.carbon.2025.120562

Bingze Liu , Jin An Wang , Dongfang Niu

引用次数: 0

Lightweight multifunctional carbon film current collector stabilizes lithium metal anode 轻型多功能碳膜集流器稳定锂金属阳极

IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-25 DOI: 10.1016/j.carbon.2025.120573

Yongchao Liu , Dian Gao , Mengdie Sun , Rui Li , Li Li , Lvlv Gao , Zhimei Sun , Shiliu Yang , Hongfa Xiang

{"title":"Lightweight multifunctional carbon film current collector stabilizes lithium metal anode","authors":"Yongchao Liu , Dian Gao , Mengdie Sun , Rui Li , Li Li , Lvlv Gao , Zhimei Sun , Shiliu Yang , Hongfa Xiang","doi":"10.1016/j.carbon.2025.120573","DOIUrl":"10.1016/j.carbon.2025.120573","url":null,"abstract":"<div><div>Lithium metal anode (LMA) is an ideal anode candidate for high energy density lithium batteries. However, metal lithium (Li) with high chemical activity and low redox potential not only leads to an unstable Li-electrolyte interface but also Li-current collector (CC) interface is susceptible to electrochemical corrosion, which has a serious influence on the overall stability of LMA. Herein, we report a polyaniline-derived carbon (PIC) thin film material that can be used as a novel LMA CC. PIC not only has the advantages of low density, good electrical conductivity, and high thermal conductivity, but also shows good compatibility in both ester and ether electrolyte systems. PIC beyond the support and conductive role of Cu foil, and the appropriate lithiation reaction with Li can form a passivation layer to effectively inhibit the electrochemical corrosion at the Li-CC interface. Thanks to the utilization of PIC CC, the reversibility and stability of Li||PIC half-cells are significantly improved, and the coulombic efficiency of the PIC-Li||NMC811 battery is significantly enhanced. In addition, PIC and thin Li (tLi) were tightly coupled by a simple process, the voltage polarization of PIC-tLi||tLi-PIC symmetric cells is noticeably reduced, and the corresponding PIC-Li||NMC811 pouch battery has a capacity retention rate of 92.2 % for 350 cycles. Remarkable, this study presents a novel cost-effective approach to using polyimide-derived carbon film as an LMA CC, resulting in stable and long-lasting LMBs.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"243 ","pages":"Article 120573"},"PeriodicalIF":10.5,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513698","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

Towards cleaner indoor air: Analyzing the effects of molecule chemistry and steric constraints on the chemisorption of formaldehyde and its derivatives on functionalized graphene surfaces 迈向更清洁的室内空气：分析分子化学和空间约束对甲醛及其衍生物在功能化石墨烯表面化学吸附的影响

IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-25 DOI: 10.1016/j.carbon.2025.120574

Karina Kowalska , Teresa J. Bandosz , Piotr Borowski

{"title":"Towards cleaner indoor air: Analyzing the effects of molecule chemistry and steric constraints on the chemisorption of formaldehyde and its derivatives on functionalized graphene surfaces","authors":"Karina Kowalska , Teresa J. Bandosz , Piotr Borowski","doi":"10.1016/j.carbon.2025.120574","DOIUrl":"10.1016/j.carbon.2025.120574","url":null,"abstract":"<div><div>Interactions of selected volatile organic compounds namely formaldehyde, acrolein, acetaldehyde, and acetone with functionalized graphene surfaces were theoretically investigated. The focus was on the effects of oxygen and nitrogen containing groups on the energy barriers during the chemisorption processes. Acrolein and acetone exhibit the highest stabilization energies during the physisorption due to enhanced dispersion-type interactions. The phenolic OH groups were found as the most prone to interact with carbonyl oxygen of the target compounds resulting in the subsequent covalent bond formation. The energy barriers for the chemisorption are lower than 10 kcal mol<sup>−1</sup> for all molecules considered, indicating that their chemisorption from the vapor-phase readily occurs at room temperature. Simultaneously, the energy barriers for the desorption are above 20 kcal mol<sup>−1</sup> for all molecules, indicating that desorption at room temperature is not possible. NH-type moieties were found to be less advantageous although their presence frequently leads to chemisorption. The efficiency of the chemisorption was found to be dependent on steric constraints and on the charge on the carbonyl carbon atom. The electron withdrawing moieties of formaldehyde derivatives were found as negatively affecting a bond formation efficiency. The theoretical findings were supported by those found in experimental approaches.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"243 ","pages":"Article 120574"},"PeriodicalIF":10.5,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144518082","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

Precision-Engineered hard carbon from bituminous coal via small-molecule extraction for high-rate sodium-ion batteries 通过小分子萃取从烟煤中提取精密工程硬碳，用于高倍率钠离子电池

IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-25 DOI: 10.1016/j.carbon.2025.120577

Mengyao Li , Haining Chen , Jiayi Li , Yingzhi Li , Bohan Zhang , Yue Chu , Fei Yang , Zhongkuan Wei , Jialong Zhu , Junwei Han , Wei Lv

{"title":"Precision-Engineered hard carbon from bituminous coal via small-molecule extraction for high-rate sodium-ion batteries","authors":"Mengyao Li , Haining Chen , Jiayi Li , Yingzhi Li , Bohan Zhang , Yue Chu , Fei Yang , Zhongkuan Wei , Jialong Zhu , Junwei Han , Wei Lv","doi":"10.1016/j.carbon.2025.120577","DOIUrl":"10.1016/j.carbon.2025.120577","url":null,"abstract":"<div><div>The challenge in decoupling the order and disorder phase evolution impedes the precise microstructure control of hard carbon (HC) anodes, fundamentally limiting the reconciliation of high capacity and fast kinetics for sodium storage. Here, we realize a precise modulation of order and disorder structures in HCs using bituminous coal precursors containing inherent aromatic units and aliphatic side chains. By removing the volatile small aromatic species (molecular weight <500 amu) with methanol extraction, more active edges of coal macromolecules (molecular weight >500 amu) and C–O/C<img>O/O–C<img>O functional groups are exposed, which enhances the cross-linking of macromolecules aromatic units, yielding long, curved microcrystalline domains with enlarged interlayer spacing and abundant closed nanopores. The extended carbon microcrystals boost electronic conductivity, while expanded interlayers and closed pores facilitate Na<sup>+</sup> diffusion and storage. As a result, the obtained HC has a high capacity of 256 mAh g<sup>−1</sup> and long cycling stability (capacity retention of 80.8 % after 1500 cycles) at a very high current density of 2000 mA g<sup>−1</sup>. This work demonstrates a scalable route for precise structural modulation of coal-derived HC to reconcile capacity and rate performance in sodium-ion batteries.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"243 ","pages":"Article 120577"},"PeriodicalIF":10.5,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144513699","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

Therapeutic effects of an injectable multifunctional thermosensitive hydrogel loaded with ascorbic acid carbon quantum dots and chitosan/chondroitin sulfate complex on periodontitis 含抗坏血酸碳量子点和壳聚糖/硫酸软骨素复合物的可注射多功能热敏水凝胶对牙周炎的治疗作用

IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-25 DOI: 10.1016/j.carbon.2025.120570

Yunhe Lin , Chunlin Wang , Siwei Li , Shuaimei Xu , Bo Jia , Han Zhang , Binbin Gong , Yu Lu , Chengxia Liu , Zhongjun Liu

{"title":"Therapeutic effects of an injectable multifunctional thermosensitive hydrogel loaded with ascorbic acid carbon quantum dots and chitosan/chondroitin sulfate complex on periodontitis","authors":"Yunhe Lin , Chunlin Wang , Siwei Li , Shuaimei Xu , Bo Jia , Han Zhang , Binbin Gong , Yu Lu , Chengxia Liu , Zhongjun Liu","doi":"10.1016/j.carbon.2025.120570","DOIUrl":"10.1016/j.carbon.2025.120570","url":null,"abstract":"<div><h3>Background</h3><div>Periodontal disease, an oral disease that initiates with plaque biofilm infection. The osteogenic potential of human periodontal stem cells (hPDLCs) is severely compromised by synergistic periodontal microbes and destructive inflammation. Enhancing the osteogenic potential of hPDLCs in an inflammatory environment remains challenging.</div></div><div><h3>Methods</h3><div>In this study, we synthesized advanced composite nanomaterials, denoted as CQDs@CH/CS, by incorporating carbon quantum dots (CQDs) derived from ascorbic acid into a chitosan/chondroitin sulfate complex (CH/CS), to facilitate targeted drug delivery to irregular periodontal pockets.</div></div><div><h3>Results</h3><div>The CQDs@CH/CS demonstrated excellent biocompatibility and anti-inflammatory properties, with a 92 % inhibition rate of <em>P. gingivalis</em> and its biofilm. It effectively enhanced the osteogenic capacity of hPDLCs in both inflammatory and normal conditions. The NLRP1 inflammasome-mediated cellular pyroptosis pathway and the Ca<sup>2+</sup>/CaM/CaMKⅡα signaling pathway were implicated in CQDs@CH/CS-induced osteogenesis. For in vivo application, CQDs@CH/CS was incorporated into a temperature-sensitive hydrogel, PF-127, and in periodontitis rats, it exhibited significant anti-inflammatory properties and substantially promoted periodontal tissue regeneration.</div></div><div><h3>Conclusions</h3><div>In summary, CQDs@CH/CS, with its multifaceted antibacterial, anti-inflammatory, and bone repair functions, is a promising carbon-based nanomaterial candidate for periodontitis treatment.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"243 ","pages":"Article 120570"},"PeriodicalIF":10.5,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501410","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

Magnetic carbon fibers with hierarchical porous structure for efficient electromagnetic wave absorption and interference shielding 具有分层多孔结构的磁性碳纤维具有有效的电磁波吸收和干扰屏蔽作用

IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-25 DOI: 10.1016/j.carbon.2025.120575

Jianxin Chen , Zhe Liu , Leqian Zhang , Chen Liu , Chunliu Zhu , Huanlei Wang , Panbo Liu

{"title":"Magnetic carbon fibers with hierarchical porous structure for efficient electromagnetic wave absorption and interference shielding","authors":"Jianxin Chen , Zhe Liu , Leqian Zhang , Chen Liu , Chunliu Zhu , Huanlei Wang , Panbo Liu","doi":"10.1016/j.carbon.2025.120575","DOIUrl":"10.1016/j.carbon.2025.120575","url":null,"abstract":"<div><div>Hierarchical porous structure and electromagnetic (EM) synergy are two important factors in manipulating EM wave absorption and EM interference shielding. Inspired by this thought, herein, a series of magnetic carbon fibers with both hierarchical porous structure and synergistic effect are successfully fabricated by the electrospinning through adjusting the pyrolysis temperature and adding pore-forming agents. Results demonstrate that NiFe Prussian blue analogues derivatives are uniformly distributed in the interior of carbon fibers and induce magnetic loss, the carbonization of poly(methyl methacrylate) and β-cyclodextrin produce hierarchical micro-meso-macropores and the carbon fiber networks provide highly long-range conductive pathways. Benefiting from the cooperative advantages, the fabricated magnetic carbon fibers display high-efficient EM wave absorption and EMI shielding. The minimum reflection loss is −59.4 dB and the absorption bandwidth reaches as wide as 10.2 GHz. Furthermore, the absorption-dominated shielding effectiveness (SE) achieves 18.5 dB. This study provides a simple method in modulating porous structure and inspires a valuable guideline for designing strong-absorption EM interference shielding materials.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"243 ","pages":"Article 120575"},"PeriodicalIF":10.5,"publicationDate":"2025-06-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501409","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

Decoding structural characteristics of fluorinated graphene via Computer-Aided spectroscopic analysis 通过计算机辅助光谱分析解码氟化石墨烯的结构特征

IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-24 DOI: 10.1016/j.carbon.2025.120567

Petr Lazar , Vítězslav Hrubý , Martin Petr , Zdeněk Baďura , Giorgio Zoppellaro , Michal Otyepka

{"title":"Decoding structural characteristics of fluorinated graphene via Computer-Aided spectroscopic analysis","authors":"Petr Lazar , Vítězslav Hrubý , Martin Petr , Zdeněk Baďura , Giorgio Zoppellaro , Michal Otyepka","doi":"10.1016/j.carbon.2025.120567","DOIUrl":"10.1016/j.carbon.2025.120567","url":null,"abstract":"<div><div>Fluorographene, a monolayer form of carbon monofluoride, is a fluorinated graphene derivative with intriguing properties and serves as a crucial precursor for synthesizing various graphene-based materials. Understanding its structural and chemical characteristics is essential for harnessing its potential, yet many aspects of its structure remain far from fully understood. Common spectroscopic methods such as infrared spectroscopy (IR) and X-ray photoelectron spectroscopy (XPS) face challenges in precisely assigning measured binding energies and IR signals to specific atomic configurations. To address these ambiguities, we combined ab initio density functional theory calculations with experimental approaches to model spectroscopic signatures of various conformations and structural defects in fluorographene. Additionally, we investigated the structures of partially fluorinated graphene derivatives, C<sub>2</sub>F and C<sub>4</sub>F. Our theoretical insights guided the structural interpretation of an in-depth characterization of two typical commercially available graphite fluoride samples using multiple techniques, including Fourier-transformed IR, XPS with Ar<sup>+</sup> ion beam etching, electron paramagnetic resonance, and nuclear magnetic resonance. Our findings highlight the valuable role of low-frequency IR spectroscopy and establish a foundation for identifying key structural features through a combination of theoretical calculations and spectroscopic experiments, applicable not only to fluorographene and fluorinated graphite but also in exploring structural characteristics of other two-dimensional and layered materials.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"243 ","pages":"Article 120567"},"PeriodicalIF":10.5,"publicationDate":"2025-06-24","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144501411","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

Multifunctional nitrogen-doped graphene quantum dots enables efficient and stable GaAs/CNT heterojunctions solar cell 多功能氮掺杂石墨烯量子点实现了高效稳定的GaAs/CNT异质结太阳能电池

IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-22 DOI: 10.1016/j.carbon.2025.120535

Xuan Wang , Youtian Mo , Xi Deng , Yufan Cai , Chaoying Guo , Jiaying Chen , Wenliang Wang , Guoqiang Li

{"title":"Multifunctional nitrogen-doped graphene quantum dots enables efficient and stable GaAs/CNT heterojunctions solar cell","authors":"Xuan Wang , Youtian Mo , Xi Deng , Yufan Cai , Chaoying Guo , Jiaying Chen , Wenliang Wang , Guoqiang Li","doi":"10.1016/j.carbon.2025.120535","DOIUrl":"10.1016/j.carbon.2025.120535","url":null,"abstract":"<div><div>GaAs heterojunction solar cells (HJSC) have attracted a lot of attention because of their potential affordability and wide range of future military and commercial uses. However, non-radiative recombination and inadequate spectrum absorption impede further performance improvement. Therefore, in this paper, a GaAs/carbon nanotube (CNT) HJSC modified by Nitrogen-doped graphene quantum dots (N-GQDs) is designed. Under standard AM1.5G illumination, the photoelectric conversion characteristics of the device were analyzed by the current density-voltage (J-V) curve and an external quantum efficiency (EQE) spectroscopy measurement system. The photovoltaic conversion efficiency (PCE) reached 15.01 % from the initial 11.87 %, and the efficiency reaches 16.53 % after using WO<sub>3</sub> thin film as Anti-reflective layer (ARC). Furthermore, it is shown by Raman spectroscopy (Raman), photoluminescence spectroscopy (PL), scanning electron microscopy (SEM) system, etc, the introduction of N-GQDs can inhibit the recombination of interfacial carriers, improve the Schottky barrier of heterojunction, and convert ultraviolet light into visible light. In this way, Broaden the utilization range of the solar energy spectrum and promote the effective separation of carriers. The battery system demonstrates excellent stability in the air for one month. This work demonstrates an encouraging high-performance, low-cost, air-stable solar cell optimization.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"243 ","pages":"Article 120535"},"PeriodicalIF":10.5,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144492056","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

Study on the evolution mechanism and concentration regulation of dynamic gradient tribofilm in ionic liquid/nanodiamond synergistic lubrication of titanium alloys 离子液体/纳米金刚石协同润滑钛合金动态梯度摩擦膜演化机理及浓度调控研究

IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-22 DOI: 10.1016/j.carbon.2025.120566

Guoqing Chen, Pengyang Li, Zhaozhao Yang, Jian Sun, Ruiyuan Zhang, Bofeng Fu

{"title":"Study on the evolution mechanism and concentration regulation of dynamic gradient tribofilm in ionic liquid/nanodiamond synergistic lubrication of titanium alloys","authors":"Guoqing Chen, Pengyang Li, Zhaozhao Yang, Jian Sun, Ruiyuan Zhang, Bofeng Fu","doi":"10.1016/j.carbon.2025.120566","DOIUrl":"10.1016/j.carbon.2025.120566","url":null,"abstract":"<div><div>This study systematically investigates the synergistic lubrication mechanism of ionic liquid and nanodiamond in aqueous solution for titanium alloys, focusing on the effect of ionic liquid concentration. The nanolubricant with 0.1 % ionic liquid and 1.0 % nanodiamond has a friction coefficient reduced to below 0.1. In comparison to pure water lubrication, the mean friction coefficient is reduced by 67.96 %, and the wear volume is decreased by 95.31 %. Its excellent lubricating properties stem from the preferential adsorption of low-concentration ionic liquid onto the friction pair surface to form a thin titanium oxide tribochemical film, while nanodiamond generates a carbon-rich lubricating film through the rolling bearing effect and the transformation of sp<sup>3</sup> to sp<sup>2</sup> carbon structures. The synergistic effect of both drives the dynamic gradient evolution of the tribofilm from “tribochemical film-dominated” to “carbon-based lubricating film-dominated,” achieving long-lasting lubrication. Molecular dynamics simulations further clarify that low-concentration ionic liquid promotes the rolling friction of nanodiamond by improving its dispersion, while high-concentration ionic liquid inhibits the effective interaction between nanodiamond and the substrate due to excessive adsorption. This study highlights the role of concentration regulation in interfacial adsorption and synergy in multi-component lubrication systems, offering theoretical support for high-performance nanolubricants.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"243 ","pages":"Article 120566"},"PeriodicalIF":10.5,"publicationDate":"2025-06-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144366788","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

Nitrogen-enriched, graphitizable carbon fibers derived from an organic pigment for stable high-energy batteries 富含氮的石墨化碳纤维来源于一种用于稳定高能电池的有机颜料

IF 10.5 2区材料科学

Carbon Pub Date : 2025-06-21 DOI: 10.1016/j.carbon.2025.120564

Sujeong Woo , Kwonyun Lee , Minsu Park , Wootaek Choi , Woong Kwon , Young Hyun Kim , Jang-Yul Kim , Euigyung Jeong , Patrick Joohyun Kim

{"title":"Nitrogen-enriched, graphitizable carbon fibers derived from an organic pigment for stable high-energy batteries","authors":"Sujeong Woo , Kwonyun Lee , Minsu Park , Wootaek Choi , Woong Kwon , Young Hyun Kim , Jang-Yul Kim , Euigyung Jeong , Patrick Joohyun Kim","doi":"10.1016/j.carbon.2025.120564","DOIUrl":"10.1016/j.carbon.2025.120564","url":null,"abstract":"<div><div>Metallic lithium (Li) anodes are ideal for Li-ion batteries owing to the high specific capacity and low redox potential of Li. However, the practical applications of metallic Li anodes are hindered by dendrite formation, low Coulombic efficiencies, and safety risks. In order to mitigate these challenges, one effective strategy is to use carbon-based current collectors. This study highlights the potential of nitrogen-enriched, graphitizable carbon fibers Nitrogen-enriched, graphitizable carbon fibers (NGC), prepared by electrospinning a C.I. Pigment Red 122 solution, as lithiophilic and porous current collectors for Li-ion and Li-metal batteries. The nitrogen and oxygen contents and carbon crystallinity of the fibers are controlled by adjusting carbonization temperatures from 600 to 1500 °C. In both Li-ion and Li-sulfur batteries, NGC-T600, carbonized at 600 °C, achieves the highest specific capacity owing to abundant surface-functional groups (C=O and C–N). Conversely, in Li-metal batteries, NGC-T1000, carbonized at 1000 °C, demonstrates the most stable cycling performance with a high Coulombic efficiency under high areal current densities and larger Li deposition capacities. These findings suggest that the interplay between nitrogen-associated bonds and degree of crystallinity in carbon scaffolds influences the Li storage mechanisms, electrochemical reversibility, and kinetics of the NGC, yielding different electrochemical behaviors in Li-ion and Li-metal batteries.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"243 ","pages":"Article 120564"},"PeriodicalIF":10.5,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144480085","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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