Diamond and Related Materials最新文献

{"title":"Cobalt-doped CoxMn1-xFe2O4/SWAC composites for ultra-thin and high-performance electromagnetic wave absorption","authors":"Zhenfei Lv ,&nbsp;Xuejia Zhang ,&nbsp;Chong Lan ,&nbsp;Jiahua Gao ,&nbsp;Junchi Weng ,&nbsp;Haotian Fan ,&nbsp;Xu Lu ,&nbsp;Xiulin Shen","doi":"10.1016/j.diamond.2026.113329","DOIUrl":"10.1016/j.diamond.2026.113329","url":null,"abstract":"<div><div>The intensifying electromagnetic pollution in the 5G era urgently demands the development of highly efficient electromagnetic wave (EMW) absorbing materials. This study employs a surfactant-assisted solvothermal method, utilizing methylene blue-saturated woody activated carbon (SWAC) as a sustainable carbon matrix, to successfully synthesize a series of cobalt-doped Co_xMn_1-xFe₂O₄/SWAC composites with tunable molar ratios. By optimizing the Co/Mn molar ratio, the composite exhibits outstanding microwave absorption performance at an ultra-thin thickness of just 1.34 mm when x = 0.6: minimum reflection loss (RL_min) reaches −55.67 dB, and effective absorption bandwidth (EAB) spans 2.16 GHz (15.84–18 GHz). Its matched thickness was significantly reduced by 57% compared to the control sample. The performance enhancement stems from multiscale synergistic effects induced by cobalt doping: cobalt enhances hysteresis loss and optimizes the natural resonant frequency; the difference in ionic radii between Co²⁺ and Mn²⁺ ions induces lattice distortion, promoting interfacial polarization. These mechanisms collectively optimize the material's impedance matching and attenuation capabilities, realizing a synergistic magnetoelectric loss mechanism. This study provides a novel strategy for designing lightweight, high-performance, and sustainable broadband electromagnetic wave absorbers.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113329"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036762","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Molecular docking and DFT study of rasagiline derivatives with MAO enzymes and their interaction with carbon nanostructure-based nanocarriers","authors":"Aidin Pezeshki ,&nbsp;Milad Nouraliei ,&nbsp;Mohammed Fanokh Al-Owaidi ,&nbsp;Majid Farsadrooh ,&nbsp;Nargiza Kamolova ,&nbsp;Maziar Noei","doi":"10.1016/j.diamond.2025.113266","DOIUrl":"10.1016/j.diamond.2025.113266","url":null,"abstract":"<div><div>Developing effective neuroprotective therapies requires not only the design of potent enzyme inhibitors but also efficient delivery systems capable of crossing biological barriers. To address this, the present study employs a dual computational framework, integrating Density Functional Theory (DFT) calculations and molecular docking simulations, to evaluate rasagiline derivatives as potential monoamine oxidase (MAO) A and B inhibitors and to assess their delivery via carbon-based nanocarriers, C₆₀ fullerene, carbon nanosheets (CNS), and carbon nanotubes (CNT). DFT analysis revealed that C₆₀ fullerene is the most suitable nanocarrier, exhibiting optimal adsorption strengths ranging from −0.23 (gas phase) to −0.40 eV (aqueous phase). The formation of stable rasagiline-fullerene complexes, governed by non-covalent interactions, induced significant electronic modulation in the derivatives, thereby suggesting enhanced chemical reactivity and favorable delivery compatibility. Molecular docking studies further demonstrated isoform-specific inhibition, with derivative R6 exhibiting the highest affinity for MAO-A (binding energy −5.15 kcal/mol) and derivative R4 showing the strongest interaction with MAO-B (−8.58 kcal/mol). Collectively, the findings demonstrate that rasagiline derivatives possess strong inhibitory potential against MAO isoforms. Furthermore, the excellent stability of C₆₀ fullerene and its ability to serve as a nanocarrier for R4 through weak physical interactions make it a promising nanoplatform for targeted and efficient delivery.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113266"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036770","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"The effect of adding single-walled carbon nanotubes on the functional characteristics of drilling fluids with different hydrocarbon phase contents","authors":"A.V. Minakov ,&nbsp;A.D. Skorobogatova ,&nbsp;E.I. Lysakova ,&nbsp;S.D. Kazanina ,&nbsp;M.I. Pryazhnikov","doi":"10.1016/j.diamond.2026.113344","DOIUrl":"10.1016/j.diamond.2026.113344","url":null,"abstract":"<div><div>Improving the properties of drilling fluids is the most important step to upgrade the performance of drilling wells. One of the ways to further enhance the characteristics of drilling fluids is the use of nanomaterial additives. This paper presents the results of a comprehensive experimental study on the effect of additives of single-walled carbon nanotubes (SWCNT) on the main functional characteristics of hydrocarbon-based drilling fluids. The influence of the hydrocarbon phase content (from 50 to 80 vol%) on the properties of drilling fluids modified with 0.1 wt% single-walled carbon nanotubes has been examined for the first time. The influence of the SWCNT additive on the effective viscosity, rheology and microrheology, thixotropic and creep recovery, oscillatory viscoelastic properties, aging and colloidal stability, filtration losses, coefficient of friction of drilling fluids has been studied. The research results have shown that the addition of SWCNT may significantly enhance key functional characteristics such as gel strength and colloidal stability of drilling fluids in a wide range of varying concentrations of the hydrocarbon phase. This makes single-walled carbon nanotubes a universal tool for controlling the functional properties of various hydrocarbon drilling fluids in various operating conditions. This improvement is attributed to the formation of a bulk elastic network, as quantitatively demonstrated by enhanced rheological moduli and stability.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113344"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075443","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Study on surface modification of boron-doped diamond electrodes and their electrochemical oxidation performance","authors":"Yangyang Yang ,&nbsp;Ying Ren ,&nbsp;Weichun He ,&nbsp;Yikang Ma ,&nbsp;Qianqian Chen ,&nbsp;Lizhen Wei ,&nbsp;Zelin Wang ,&nbsp;Bing Xue ,&nbsp;Huichao Zheng ,&nbsp;Zhengxin Li","doi":"10.1016/j.diamond.2026.113378","DOIUrl":"10.1016/j.diamond.2026.113378","url":null,"abstract":"<div><div>In response to environmental pollution caused by organic contaminants, the use of boron-doped diamond (BDD) electrodes for the electrolytic removal of organic pollutants has emerged as a significant research strategy in recent years. However, conventional planar BDD electrodes suffer from limitations in mass transfer efficiency and electrochemical active surface area, which adversely affect their degradation performance. In this study, BDD electrodes were fabricated using MPCVD technology. These electrodes were then subjected to surface modification via various methods, resulting in a series of modified BDD electrodes. The morphology and structure characteristics of the electrodes were analyzed using scanning electron microscopy (SEM), X-ray diffraction (XRD), and Raman spectroscopy. Their electrochemical performance and efficiency in degrading tetracycline contaminants were evaluated by an electrochemical workstation and ultraviolet-visible (UV–Vis) spectrophotometer. The results indicated that surface modification significantly altered the electrode morphology. Electrochemical analysis revealed that the active area of the electrodes increased by 1.94-fold and 2.90-fold, respectively, after hydrogen etching via MPCVD and dielectric barrier discharge (DBD) treatment. After 120 min of degradation testing, the DBD-treated BDD electrode demonstrated the highest organic pollutant removal rate (85.4%) and the greatest apparent reaction rate constant (0.0155 min⁻¹) among all tested electrodes.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113378"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075447","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Flexible MXene/bamboo cellulose aerogel membrane humidity sensor for non-contact monitoring of human health signals","authors":"Yunlong Wang ,&nbsp;Guochong Gong ,&nbsp;Haoyu Li ,&nbsp;Shuqi Liu ,&nbsp;Guoyuan Wang ,&nbsp;Wenfeng Qin ,&nbsp;Jiayu Xie ,&nbsp;Chunsheng Li","doi":"10.1016/j.diamond.2026.113445","DOIUrl":"10.1016/j.diamond.2026.113445","url":null,"abstract":"<div><div>In the field of flexible electronics, developing high-performance flexible humidity sensors with a good balance among sensitivity, stability, and flexibility remains a significant challenge. This study presents a flexible humidity sensor based on an MXene/bamboo cellulose fibers (BCFs) aerogel membrane for applications in human health monitoring. The sensor is fabricated through vacuum filtration and freeze-drying processes to construct a porous aerogel structure. The interlayer spacing of MXene is effectively modulated by leveraging the hygroscopic expansion of BCFs, enabling a resistive response to variations in humidity. The results demonstrate that the sensor achieves a sensitivity of 2.46%/% RH(it means that the resistance change rate of the humidity sensor is 2.46% for every 1% change in humidity), with response and recovery times of 260 s and 282 s, respectively. The device exhibits stable performance over multiple adsorption-desorption cycles and after 14 days of ambient exposure. Furthermore, it has been successfully employed in non-contact monitoring of physiological signals, including respiration, fingertip humidity, and voice recognition, highlighting its promising potential for use in flexible electronics and real-time health monitoring systems.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113445"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147421429","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Influence of sliding angle on friction reduction of surface-textured amorphous carbon films and its relationship with textured shape","authors":"Xiang Lu ,&nbsp;Naizhou Du ,&nbsp;Xiaowei Li ,&nbsp;Xubing Wei ,&nbsp;Jiahao Dong ,&nbsp;Junjie Lu ,&nbsp;Kai Chen ,&nbsp;Hao Li ,&nbsp;Chengyuan Liu ,&nbsp;Aiping Lin ,&nbsp;Wei Liu","doi":"10.1016/j.diamond.2026.113373","DOIUrl":"10.1016/j.diamond.2026.113373","url":null,"abstract":"<div><div>The combination of surface texturing technology and amorphous carbon (a-C) solid lubricating films has garnered significant attention due to their potential to enhance friction performance across various environments. However, the effect of sliding angles on the friction reduction of textured a-C films remains insufficiently studied. Particularly, the current experimental characterization techniques are still constrained in in-situ monitoring of interfacial physicochemical interactions and microstructural evolution during friction processes, resulting in incomplete elucidation of the underlying mechanisms. Herein, using reactive molecular dynamics simulations, the role of sliding angle in friction reduction of surface circular-textured a-C films was systematically investigated, and its dependence on textured shape was also considered by comparing with the rectangular-textured case. Results indicate that the tribological performance is highly dependent on the sliding angle. The friction coefficient exhibits an initial decrease followed by an increase with increasing sliding angle from 0° to 90°, with the optimal frictional behavior observed at a sliding angle of 60°. This performance is primarily governed by the combined effects of interfacial crosslinking and passivation degrees. Furthermore, the a-C films with different textured shapes exhibit a similar trend in friction behavior with respect to sliding angle. But the differences in friction response between the two geometries are predominantly governed by alternating contributions from interfacial crosslinking and the reduction of unsaturated bonds. These results elucidate the friction-reduction mechanisms of surface-textured a-C films under varying sliding angles, providing theoretical guidance for texture design optimization and operational parameter selection in engineering applications.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113373"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075438","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Engineering nitrogen vacancies in g-C₃N₄ through post-heat treatment for enhanced photocatalytic H₂O₂ evolution","authors":"Ali Alsalme","doi":"10.1016/j.diamond.2026.113368","DOIUrl":"10.1016/j.diamond.2026.113368","url":null,"abstract":"<div><div>Visible-light-driven photocatalytic H₂O₂ production is one of the most promising approaches for generating sustainable solar fuel through the two-electron reduction of molecular oxygen. In this work, a simple post-synthesis heat treatment method was employed to prepare defective carbon nitride (g-C₃N₄) with enhanced photocatalytic activity. High-temperature treatment at 550 °C and 600 °C facilitates the formation of sp²-hybridized nitrogen vacancies within the g-C₃N₄ framework. The sample treated at 550 °C exhibited improved photocatalytic efficiency due to enhanced visible-light absorption. In contrast, the 600 °C-treated sample introduced intermediate energy levels within the bandgap, which promoted both visible-light absorption and efficient charge carrier separation during H₂O₂ production. Analytical studies further revealed that the presence of nitrogen vacancies in the g-C₃N₄ system significantly enhances the overall electron reduction process, leading to improved photocatalytic H₂O₂ evolution.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113368"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075439","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"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: Preparation and application of biomass based carbon aerogel","authors":"Hanqing Peng ,&nbsp;Zuozhao Zhai ,&nbsp;Bin Ren","doi":"10.1016/j.diamond.2026.113361","DOIUrl":"10.1016/j.diamond.2026.113361","url":null,"abstract":"<div><div>The utilization of biomass resources can not only alleviate energy shortage and environmental problems, but also contribute to sustainable development. The preparation of carbon aerogel from biomass can realize the efficient utilization of waste resources. Herein, this review summarizes the preparation and application of biomass based carbon aerogel. Firstly, this review systematically deconstruct the intrinsic molecular architectures and chemistry of quintessential biomass feedstocks (cellulose, chitin, starch, and sodium alginate) and elucidate how these inherent features dictate the gelation pathways, pore structure evolution, and ultimate functionality of the resulting carbon skeletons. Then, this review further advances beyond a conventional listing of applications in water treatment, energy storage, electromagnetic interference shielding, gas adsorption, thermal insulation, and sensing. This review provides a focused analysis on the mechanistic links between the tailorable hierarchical porosity/surface chemistry of biomass CAs and their performance. Finally, critical challenges hindering industrial translation are identified, including the absence of a dominant high-performance precursor, low carbonization yield, and the energy-intensive freeze-drying bottleneck. This review aims to provide a foundational framework and a forward-looking design logic for transitioning biomass based carbon aerogel from laboratory curiosities toward customizable, high-performance materials for advanced sustainable technologies.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113361"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146075442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Research on surface quality assessment using fractal dimension for two-dimensional ultrasonic-assisted grinding of unidirectional Cf/SiC composites","authors":"Zhenyan Duan ,&nbsp;Tao Chen ,&nbsp;Yuhao Suo ,&nbsp;Haohui Shi ,&nbsp;Junpeng Ye","doi":"10.1016/j.diamond.2026.113351","DOIUrl":"10.1016/j.diamond.2026.113351","url":null,"abstract":"<div><div>Accurately characterizing surface quality is a prerequisite for the subsequent optimization of the processing scheme when processing of composites such as carbon fiber-reinforced silicon carbide matrix composites (C_f/SiCs). Properties such as the scale-free nature of the fractal dimension make it independent of the measuring accuracy of the instrument. In this study, the surface quality characterization of C_f/SiCs after two-dimensional ultrasonic-assisted grinding (2D-UAG) was explored using fractal dimension <em>D</em>_s. Firstly, C_f/SiCs were classified into three fiber arrangement directions, i.e., perpendicular, longitudinal, and transverse. Secondly, the fractal characteristics of C_f/SiCs in the three fiber orientations were demonstrated. The results showed that the self-similar magnification interval of the C_f/SiCs' image with longitudinal and vertical fiber arrangement is 200×–500× magnification. In addition, C_f/SiCs with different fiber orientation directions exhibited different material removal mechanisms, which in turn affected their surface quality. C_f/SiCs with perpendicular fiber arrangement have the best machined surface quality, while C_f/SiCs with longitudinal fiber arrangement have the worst machined surface quality.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113351"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036773","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

{"title":"Mechanism and suppression method of grain burial in laser sharpening of bronze-bond diamond wheels","authors":"Fengrong Luo ,&nbsp;Genyu Chen ,&nbsp;Wei Zhou ,&nbsp;Wei Wang ,&nbsp;Longjian Wang ,&nbsp;Yinghui Ren ,&nbsp;Jie Li","doi":"10.1016/j.diamond.2026.113357","DOIUrl":"10.1016/j.diamond.2026.113357","url":null,"abstract":"<div><div>Laser technology is increasingly being applied to the dressing of diamond wheels, not only enabling high profile accuracy but also enhancing its grinding performance. However, diamond wheel is a super-hard composite material, diamond exhibits significantly different thermophysical properties from the bond. This disparity introduces considerable uncertainties in the laser processing of diamond grinding wheels. In this study, the phenomenon of grain burial was first observed in a nanosecond laser sharpening bronze-bonded diamond wheel. Even with sufficient removal depth of the bronze bond, the diamond grains did not protrude as expected but instead ended up below the bond plane. It caused unstable grinding behavior, increased wheel clogging, and reduced grinding quality. Through detailed analysis of the changes in the wheel's surface morphology, the mechanism of laser sharpening was uncovered and the reason for grain burial was identified. This phenomenon is strongly influenced by the laser power input and the differences in thermophysical properties between diamond and bronze. Further increasing the laser power to 30 W, exceeding the theoretical value, effectively addressed the grain burial issue. At last, the subsequent strategy using a 5 W low-power laser cleaning was also proposed to mitigate the associated thermal effects resulting from high power.</div></div>","PeriodicalId":11266,"journal":{"name":"Diamond and Related Materials","volume":"163 ","pages":"Article 113357"},"PeriodicalIF":5.1,"publicationDate":"2026-03-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146036764","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}