Carbon最新文献

{"title":"Kinetically trapped amorphous states and AB pairing in rGO: an in-situ XRD study of process–structure map","authors":"Nicolò Galvani ,&nbsp;Jasper R. Plaisier ,&nbsp;Cosimo Anichini ,&nbsp;Alicia Moya ,&nbsp;Paolo Samorì ,&nbsp;Andrea Liscio ,&nbsp;Fabiola Liscio","doi":"10.1016/j.carbon.2026.121247","DOIUrl":"10.1016/j.carbon.2026.121247","url":null,"abstract":"<div><div>Understanding and controlling the evolution of the graphene oxide (GO) structure during thermal reduction is critical for tailoring the reduced GO (rGO) properties for applications in energy storage and generation, electronics, and membrane. While previous in-situ diffraction studies have largely focused on interlayer collapse along the (00ℓ) direction, the fate of the in-plane lattice and stacking registry has remained elusive. Here, we use synchrotron powder X-ray diffraction, complemented by in-/out-of-plane laboratory measurements on films, to monitor the (100)/(101) region of GO during reduction. Applying the Basic Structural Components (BSC) model, we quantitatively track turbostratic single layers, AB-paired bilayers, and short Bernal ABA sequences, alongside the evolving in-plane lattice parameter. We uncover a transient, rate-selected amorphous-like regime (140–190 °C) where the (100) intensity nearly vanishes, followed by divergent kinetic pathways: fast ramps trap AB-enriched but ABA-deficient states even at 900 °C, whereas slow ramps (≤0.5 °C/min) below ∼240 °C enable progressive AB ordering and the emergence of short-range ABA. These results establish a process–structure map linking thermal history to stacking registry and in-plane strain. Beyond elucidating the reduction mechanism, our work outlines kinetic guidelines to deliberately trap amorphous-like 2D carbon or promote AB/ABA order, providing a controllable pathway to engineer interlayer coupling in rGO.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121247"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973827","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":"Synergistic 2-D cobalt di-tert-butyl phosphate grid graphitic carbon nitride (gC3N4) hybrids for rapid photocatalytic hydrogen evolution","authors":"Navneet Matharoo ,&nbsp;Mohammed Fawaz ,&nbsp;Nithinraj Panangattu Dharmarajan ,&nbsp;Jae-Hun Yang ,&nbsp;Xuan Minh Chau Ta ,&nbsp;Ayona K. Jose ,&nbsp;Vibin Perumalsamy ,&nbsp;Matej Huš ,&nbsp;Yuwei Wang ,&nbsp;Antonio Tricoli ,&nbsp;Prashant Kumar ,&nbsp;Blaž Likozar ,&nbsp;Chung-Hwan Jeon ,&nbsp;Ramaswamy Murugavel ,&nbsp;Ajayan Vinu","doi":"10.1016/j.carbon.2026.121260","DOIUrl":"10.1016/j.carbon.2026.121260","url":null,"abstract":"<div><div>Present day energy demands require greener, cleaner, scalable and high-rate hydrogen production by employing abundant solar energy-driven catalysis. Amongst emerging low cost photocatalysts, graphitic carbon nitrides (gC₃N₄) have emerged as exciting platforms for hydrogen production using sunlight due to their interesting semiconducting properties with the unique band structure. However, the fast electron-hole recombination in g-C₃N₄ restricts their high performance in producing hydrogen which limits its wider applicability for large scale H₂ production. Synergistic hybridization of gC₃N₄ with two-dimensional (2D) transition metal organo-phosphates can potentially ensure swift charge transfer, which however has never been realized. Keeping in mind the urgency, we herein report the first demonstration of the synthesis of gC₃N₄-2D cobalt di-tert-butyl phosphate bipyridine (CDTBP) hybrids for facile and enhanced H₂ production under visible light. Further analysis with the transmission electron microscopic imaging (HRTEM), X-ray photoelectron spectroscopy (XPS), and ultraviolet photoelectron spectroscopy (UPS) reveal the inter-layer coupling and bond alignment, confirming the synergistic hybridization between the component layers. This novel hybrid nanosystem achieves a hydrogen evolution rate of 682.4 μmol h⁻¹ g⁻¹, outperforming state-of-the-art g-C₃N₄–based photocatalysts such as CoPi/g-C₃N₄ (234 μmol h⁻¹ g⁻¹) and cobalt phosphate hydroxide/g-C₃N₄ (254 μmol h⁻¹ g⁻¹), demonstrating the strong synergistic effect of the 2D–2D CDTBP-g-C₃N₄ interface. Suppression of exciton recombination in CDTBP- gC₃N₄ as compared to pristine gC₃N_4, and consequent 25-fold enhancement in photocurrent upon hybridization reveals the swift charge transfer. The findings of the present study highlight the importance of developing advanced hybrid nanocatalysts for scalable hydrogen production.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121260"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973826","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":"OPTIMIZING MESOPHASE PITCH SPINNING USING MELT SPINNING PROCESS EQUATIONS, AND THE FIBER STRUCTURE PRODUCED","authors":"Sun Xiang ,&nbsp;Gong Rui-fu ,&nbsp;Lu Yong-gen","doi":"10.1016/j.carbon.2025.121198","DOIUrl":"10.1016/j.carbon.2025.121198","url":null,"abstract":"","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121198"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034442","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":"DENSIFICATION AND THERMAL PROPERTIES OF CYLINDRICAL GRAPHITE-BASED FUEL ELEMENTS USED IN A MOLTEN SALT REACTOR","authors":"Wang Gan ,&nbsp;Wang Hao-ran ,&nbsp;Lu Lin-yuan ,&nbsp;Li Wan-lin ,&nbsp;Chen Nan-nan ,&nbsp;He Yun ,&nbsp;Zhong Ya-juan ,&nbsp;Lin Jun","doi":"10.1016/j.carbon.2025.121199","DOIUrl":"10.1016/j.carbon.2025.121199","url":null,"abstract":"","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121199"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034443","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":"Defect-controlled magnetic coupling in graphene-based synthetic antiferromagnets","authors":"Carlo Alberto Brondin ,&nbsp;Maha Hsouna ,&nbsp;Francesca Genuzio ,&nbsp;Matteo Jugovac ,&nbsp;Marcin Zając ,&nbsp;Ewa Partyka-Jankowska ,&nbsp;Stefano Bonetti ,&nbsp;Andrea Locatelli ,&nbsp;Nataša Stojić ,&nbsp;Tevfik Onur Menteş","doi":"10.1016/j.carbon.2025.121169","DOIUrl":"10.1016/j.carbon.2025.121169","url":null,"abstract":"<div><div>Synthetic antiferromagnets (SAF) with compensated stray magnetic fields offer ideal features for driving topological magnetic structures, skyrmions in particular. Rare-earth free SAFs with perpendicular magnetic anisotropy can be readily fabricated by interposing a graphene spacer between ultrathin <em>3d</em> transition metals. The prototypical system Fe/graphene/Co hides a surprising level of complexity when considering real interfaces. In our study, we experimentally and theoretically demonstrate the sensitive dependence of magnetic properties on the structural integrity of the graphene spacer. Spectromicroscopy experiments with chemical, structural and magnetic sensitivity reveal the role of graphene defects in the Fe–Co magnetic coupling. The overall sign and magnitude of the Fe overlayer magnetization can be modified by passivating graphene vacancy defects using nonmagnetic atoms and molecules. Density functional theory calculations confirm that the presence of graphene vacancy defects and metal overlayer clusters can induce ferromagnetic coupling in Fe/graphene/Co. Moreover, calculations demonstrate how the antiferromagnetic coupling between Fe and Co via the graphene spacer is disrupted at the graphene defects, and how it is restored by introducing nonmagnetic atoms at the defect sites. Restoration of antiferromagnetic coupling is confirmed in the experiments by using Ag atoms and carbon containing molecules to passivate the defect sites.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121169"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973760","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":"Tribology and oxidation properties of graphite/CuNiTiCrNb HEA coatings produced by laser cladding","authors":"Jun Tang ,&nbsp;Zan-Song Li ,&nbsp;Xiu-Bo Liu ,&nbsp;Guo-Dong Chen ,&nbsp;Fan Liu ,&nbsp;Sai Wang ,&nbsp;Fan-Gui Meng ,&nbsp;Dong-Sheng Wang ,&nbsp;Kai-Ming Wang","doi":"10.1016/j.carbon.2026.121261","DOIUrl":"10.1016/j.carbon.2026.121261","url":null,"abstract":"<div><div>Wear and oxidation failures of titanium alloys at high temperatures are becoming common. Therefore, in this study, the graphite/CuNiTiCrNb high-entropy alloy (HEA) coatings were prepared by laser cladding to improve the wear and oxidation resistance of Ti6Al4V under high temperature. The results indicate that graphite decomposition produced carbide phases (TiC and Ti₂AlC/Ti₃AlC), which increased the hardness of the coatings. As the graphite content increased (1–3 wt%), the wear rate and oxidation rate decreased from 31 to 2.47 × 10⁻⁵ mm³/Nm, 22.83 to 14.27 mg²/cm⁴·h, respectively. The layered phases composed of residual graphite and Ti₂AlC/Ti₃AlC combined with oxides (Cr₂O₃ and TiO₂) to form a mixed oxide layer, thereby enhancing the wear resistance of the coatings. At the C3 coating surface, a denser oxide layer composed of Cr₂O₃ and TiO₂ was formed. The dense oxide layer and the “stacking” barrier effect of graphite effectively slowed down the diffusion of oxygen, thereby improving the oxidation resistance ability of the coating.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121261"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973828","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":"Cu-catalyzed carbonization microenvironment enables interfacial coupling in silicon-graphite anodes","authors":"Yin Zhao ,&nbsp;Jiali Li ,&nbsp;Yuehua Liu ,&nbsp;Zheng He ,&nbsp;Yuzhe Qian ,&nbsp;Zhi Wang ,&nbsp;Junhao Liu ,&nbsp;Deping Xu ,&nbsp;Yonggang Wang ,&nbsp;Xuzhong Gong","doi":"10.1016/j.carbon.2026.121252","DOIUrl":"10.1016/j.carbon.2026.121252","url":null,"abstract":"<div><div>Commercial silicon-graphite anodes typically restrict the silicon fraction below 10 % to preserve structural integrity, yet this compromises their energy density. When the silicon content rises to ∼20 %, the severe volume mismatch between silicon and graphite generates interfacial delamination, SEI overgrowth, and rapid capacity decay. Conventional carbon coatings fail to resolve this conflict—soft carbons creep plastically, while hard carbons are rigid but disordered, causing brittle fracture and weak interfacial bonding. Here, we introduce a Cu-regulated carbonization microenvironment strategy to construct a robust silicon-graphite composite. Trace Cu catalytically redirects the pyrolysis of glucose toward aromatization-graphitization, yielding a high-<em>sp</em>², densely stacked carbon sheath with superior conductivity and mechanical strength. Simultaneously, Cu acts as a chemical welder, weakening Si–Si bonds and inducing covalent Si–C/Si–<em>O</em>–C linkages that anchor the carbon shell to the active core. The resulting Cu-templated composite maintains structural integrity and achieves 94.3 % capacity retention after 600 cycles at 0.2 A g⁻¹. This work establishes a dual catalytic-interfacial function of Cu, offering a new paradigm for carbon microenvironment regulation in high-silicon composite anodes.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121252"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145973914","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":"A REVIEW OF RECENT PROGRESS ON CO2 HYDROGENATION TO METHANE BY Ni-BASED CATALYSTS SUPPORTED ON CARBON MATERIALS","authors":"Yu Sun ,&nbsp;Huo Kai-xuan ,&nbsp;Fang Hai-qiu ,&nbsp;Wang Yang ,&nbsp;Wu Ming-bo","doi":"10.1016/j.carbon.2025.121189","DOIUrl":"10.1016/j.carbon.2025.121189","url":null,"abstract":"","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121189"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034820","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":"EFFECT OF THE ADDITION OF TEREPHTHALIC ACID ON THE FORMATION OF COAL TAR PITCH-BASED MESOPHASE IN THE AlCl3 CATALYTIC SYSTEM","authors":"Li Hui ,&nbsp;Yang Tao ,&nbsp;Song Yan ,&nbsp;Zhao Ning ,&nbsp;Ma Zi-hui ,&nbsp;Qi Su-xia ,&nbsp;Cui Zhen-hai ,&nbsp;Tian Xiao-dong ,&nbsp;Liu Zhan-jun","doi":"10.1016/j.carbon.2025.121197","DOIUrl":"10.1016/j.carbon.2025.121197","url":null,"abstract":"","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121197"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146034909","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":"Fabrication of ultrahigh-strength aluminum matrix composites reinforced with high-content carbon nanotubes and ex-situ added alloying elements","authors":"Yahang Wang ,&nbsp;Zhendong Jia ,&nbsp;Lin Cao ,&nbsp;Jianghua Shen ,&nbsp;Jinshan Li ,&nbsp;Biao Chen","doi":"10.1016/j.carbon.2025.121218","DOIUrl":"10.1016/j.carbon.2025.121218","url":null,"abstract":"<div><div>An ex-situ alloying approach was developed to tackle the uniform dispersion challenge of high-content carbon nanotubes (CNTs) in hard aluminum (Al) alloy powders that are difficult to deform during the high energy ball milling (HEBM) process. The approach includes (1) attaining uniform distribution of high-content CNTs in soft pure Al powders via HEBM, followed by (2) short-duration HEBM with elemental Zn/Mg/Cu powders. Microstructural analysis showed that the high-content CNTs promoted dynamic recrystallization in the Al matrix, leading to a heterogeneous grain structure consisting of fine-grained and coarse-grained zones. The high density of dislocations introduced by CNTs resulted in more and finer precipitates in the fine-grained zones. The synergistic enhancement between CNTs and precipitates in composite yielded an exceptionally high tensile strength of 855 MPa, which registered a new record among the bulk CNTs/Al composites in literature. The strengthening mechanisms were discussed based on thorough microstructure characterizations. This study proposes a paradigm for microstructure tailoring to fabricate Al alloy composites reinforced with high-content CNTs via optimized preparation techniques and precipitation engineering.</div></div>","PeriodicalId":262,"journal":{"name":"Carbon","volume":"249 ","pages":"Article 121218"},"PeriodicalIF":11.6,"publicationDate":"2026-02-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145882720","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}