Diamond and Related Materials最新文献

Influence of sliding angle on friction reduction of surface-textured amorphous carbon films and its relationship with textured shape 滑动角对表面织构非晶碳膜摩擦减量的影响及其与织构形状的关系

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-29 DOI: 10.1016/j.diamond.2026.113373

Xiang Lu , Naizhou Du , Xiaowei Li , Xubing Wei , Jiahao Dong , Junjie Lu , Kai Chen , Hao Li , Chengyuan Liu , Aiping Lin , Wei Liu

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.

表面织构技术和非晶碳（a-C）固体润滑膜的结合由于其在各种环境下提高摩擦性能的潜力而引起了极大的关注。然而，滑动角对织构a-C薄膜摩擦减量的影响研究尚不充分。特别是，目前的实验表征技术仍然局限于对摩擦过程中界面物理化学相互作用和微观结构演变的原位监测，导致对潜在机制的不完全阐明。本文采用反应分子动力学模拟的方法，系统研究了滑动角对表面圆形织构a-C膜摩擦减量的影响，并通过与矩形织构的对比，考虑了滑动角对表面圆形织构a-C膜摩擦减量的依赖关系。结果表明，摩擦磨损性能与滑动角密切相关。从0°到90°，随着滑动角的增大，摩擦系数呈现先减小后增大的趋势，在60°滑动角时摩擦性能最佳。这种性能主要受界面交联和钝化程度的综合影响。此外，不同织构形状的a- c薄膜的摩擦行为随滑动角的变化趋势相似。但两种几何结构之间的摩擦响应差异主要是由界面交联和不饱和键的减少交替贡献决定的。这些结果阐明了不同滑动角下表面织构a-C膜的减摩机理，为工程应用中织构优化设计和操作参数选择提供了理论指导。

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引用次数: 0

Study on surface modification of boron-doped diamond electrodes and their electrochemical oxidation performance 掺硼金刚石电极表面改性及其电化学氧化性能的研究

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-28 DOI: 10.1016/j.diamond.2026.113378

Yangyang Yang , Ying Ren , Weichun He , Yikang Ma , Qianqian Chen , Lizhen Wei , Zelin Wang , Bing Xue , Huichao Zheng , Zhengxin Li

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.

针对有机污染物造成的环境污染，利用掺硼金刚石（BDD）电极电解去除有机污染物已成为近年来一项重要的研究策略。然而，传统的平面BDD电极在传质效率和电化学活性表面积方面存在局限性，这对其降解性能产生了不利影响。本研究采用MPCVD技术制备BDD电极。然后通过各种方法对这些电极进行表面修饰，从而得到一系列修饰的BDD电极。利用扫描电子显微镜（SEM）、x射线衍射仪（XRD）和拉曼光谱分析了电极的形貌和结构特征。采用电化学工作站和紫外-可见分光光度计对其电化学性能和降解四环素类污染物的效率进行了评价。结果表明，表面修饰显著改变了电极的形貌。电化学分析表明，经MPCVD和介质阻挡放电（DBD）处理后，电极的活性面积分别增加了1.94倍和2.90倍。经过120 min的降解测试，经dbd处理的BDD电极有机污染物去除率最高（85.4%），表观反应速率常数最大（0.0155 min−1）。

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引用次数: 0

Superoxide ion (O2−) adsorption on C20 fullerene: A DFT study for antioxidant material design 超氧离子（O2−）在C20富勒烯上的吸附：抗氧化材料设计的DFT研究

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-28 DOI: 10.1016/j.diamond.2026.113372

Gabriel García-Laiton , Alejandro B.D. Mora-González , Alexia K. Magadán-Cuatlayol , Fernando A. Zubieta López , Ernesto Chigo-Anota

Oxidative stress drives the search for advanced antioxidant nanomaterials. This study evaluates the smallest fullerene, C₂₀, as an efficient scavenger of the superoxide radical (O₂⁻). Density Functional Theory (DFT) calculations, including implicit solvation effects, reveal that the Jahn-Teller instability of C₂₀ creates a highly reactive surface with localized electrophilic sites that facilitate radical neutralization. O₂⁻ adsorbs on the C₂₀ surface through covalent chemisorption and charge-transfer physisorption, which are thermodynamically spontaneous in gas and aqueous phases. These interactions reduce the system's electrophilicity by approximately 99% of pristine C₂₀ and result in electronically stabilized complexes. Topological analyses indicate shared-shell characteristics consistent with a chemical adsorption pathway. Time-dependent DFT predicts visible/NIR charge-transfer signatures for the physisorbed complexes, opening possibilities for non-invasive radical sensing. Although solvation decreases the adsorption energies, the process remains spontaneous in water, supporting the biological feasibility of C₂₀ as a next-generation antioxidant and biosensing platform.

氧化应激促使人们寻找先进的抗氧化纳米材料。本研究评价了最小的富勒烯C20作为超氧自由基（O2−）的有效清除剂。密度泛函理论（DFT）计算，包括隐式溶剂化效应，揭示了C20的Jahn-Teller不稳定性产生了一个具有局部亲电位点的高活性表面，有利于自由基中和。O2−通过共价化学吸附和电荷转移物理吸附在C20表面，这两种吸附在气相和水相中都是热力学自发的。这些相互作用使体系的亲电性降低了约99%的原始C20，并产生了电子稳定的配合物。拓扑分析表明，共享壳特征符合化学吸附途径。时变DFT预测了物理吸附复合物的可见/近红外电荷转移特征，为非侵入性自由基传感开辟了可能性。尽管溶剂化降低了吸附能，但该过程在水中仍然是自发的，这支持了C20作为下一代抗氧化剂和生物传感平台的生物学可行性。

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引用次数: 0

Plasma-synthesized graphene oxide quantum dots: Structure, thermal relaxation, and coupled magnetocaloric effect 等离子体合成氧化石墨烯量子点：结构、热松弛和耦合磁热效应

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-27 DOI: 10.1016/j.diamond.2026.113375

Nikolay Sirotkin , Olga Balmasova , Alexey Dyshin , Anatoly Sarapulov , Ruslan Kryukov , Alena Shkapina , Viktor Korolev

Graphene oxide quantum dots (GOQDs) represent a promising class of carbon nanomaterials with exceptional optical, electronic, and biocompatible properties. This study presents a novel, environmentally friendly synthesis of GOQDs using pulsed underwater discharge plasma, enabling the production of highly functionalized quantum dots without additional chemical precursors. The synthesized GOQDs were comprehensively characterized using a suite of physicochemical techniques, including X-ray diffraction (XRD), Fourier-transform infrared (FTIR) spectroscopy, Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), transmission electron microscopy (TEM), UV–visible absorption, photoluminescence spectroscopy, thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). Structural analyses confirmed the formation of nanocrystalline, defect-rich particles with an average size of 2–8 nm, featuring a high density of oxygen-containing functional groups predominantly located at edges and defect sites. Optical studies revealed an absorption band at approximately 240 nm, a calculated optical band gap of 2.4 eV, and green-yellow photoluminescence centered at 565 nm, attributed to the synergistic effects of defect-state emission and quantum confinement. Thermal analysis identified distinct, reproducible heat capacity peaks at approximately 41.5 °C, 55.3 °C, and 59.6 °C, which correlate with in situ Raman spectral evolution and are interpreted as configurational relaxations and defect annealing within the metastable carbon lattice. Furthermore, the magnetocaloric effect (MCE) and entropy changes (ΔS) were investigated under external magnetic fields ranging from 0.2 to 1.0 T. The observed maxima in MCE and ΔS curves coincide with the thermal anomalies in heat capacity, demonstrating a strong coupling between structural rearrangements and magnetic entropy.

氧化石墨烯量子点（GOQDs）具有优异的光学、电子和生物相容性，是一种很有前途的碳纳米材料。本研究提出了一种新颖、环保的利用脉冲水下放电等离子体合成GOQDs的方法，使高功能化量子点的生产无需额外的化学前体。利用x射线衍射（XRD）、傅里叶变换红外（FTIR）光谱、拉曼光谱、x射线光电子能谱（XPS）、透射电子显微镜（TEM）、紫外可见吸收光谱、光致发光光谱、热重分析（TGA）和差示扫描量热法（DSC）等一系列物理化学技术对合成的GOQDs进行了全面表征。结构分析证实形成了纳米晶，平均尺寸为2-8 nm，具有高密度的含氧官能团，主要位于边缘和缺陷位置。光学研究表明，由于缺陷态发射和量子约束的协同作用，该材料具有约240 nm的吸收带，2.4 eV的光学带隙，以及以565 nm为中心的黄绿色光致发光。热分析发现，在大约41.5°C、55.3°C和59.6°C处，热容峰值明显，可重复，这与原位拉曼光谱演化有关，并被解释为亚稳碳晶格内的构型弛豫和缺陷退火。此外，在0.2 ~ 1.0 t的外加磁场范围内，研究了磁热效应（MCE）和熵变化（ΔS）。MCE和ΔS曲线的最大值与热容的热异常相吻合，表明结构重排和磁熵之间存在强耦合。

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引用次数: 0

Engineering nitrogen vacancies in g-C₃N₄ through post-heat treatment for enhanced photocatalytic H₂O₂ evolution 通过后热处理在g-C₃N₄中制造氮空位，以增强光催化H₂O₂的析出

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-27 DOI: 10.1016/j.diamond.2026.113368

Ali Alsalme

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.

可见光驱动的光催化H₂O₂生产是通过分子氧的双电子还原产生可持续太阳能燃料的最有前途的方法之一。本文采用简单的合成后热处理方法制备了光催化活性增强的缺陷氮化碳（g-C₃N₄）。550°C和600°C的高温处理有助于在g-C₃N₄框架内形成sp2杂化氮空位。在550°C下处理的样品由于可见光吸收增强而表现出更高的光催化效率。相比之下，600°c处理的样品在带隙内引入了中间能级，这促进了可见光吸收和H₂O₂生产过程中有效的载流子分离。分析研究进一步表明，g-C₃N₄体系中氮空位的存在显著增强了整个电子还原过程，从而改善了光催化H₂O₂的演化。

引用次数: 0

Boron-doped g-C₃N₄ catalysts for solar-driven Hydrogen production: Experimental and DFT insights 用于太阳能制氢的硼掺杂g-C₃N₄催化剂：实验和DFT见解

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-26 DOI: 10.1016/j.diamond.2026.113371

Kanchan Pawar , Oshnik Maurya , Subhendu Mishra , Arpan Chakraborty , Niteen S. Jawale , Sudhir S. Arbuj , Abhishek K. Singh , Bhavesh Sinha , Archana Kalekar

Hydrogen is a key clean energy carrier for global sustainability, and solar-driven water-splitting technologies playing a crucial role in producing hydrogen efficiently and reducing dependence on fossil fuels. Graphitic carbon nitride (g-C₃N₄, GCN) catalyst is highly promising for photocatalytic applications due to its visible-light activity, cost-effectiveness, narrow bandgap, non-toxicity, stability, and ease of synthesis. This study focuses on the synthesis of GCN through thermal polymerization, and further explores the effect of boron doping (BCN) on the electronic, optical, and catalytic properties of the resulting material. Photoelectrocatalytic (PEC) measurements show improved photocurrent density, while photocatalytic (PC) measurements show evolution of 518 μmol H₂ per 0.1 g of BCN, which was 1.64 times higher than pristine GCN. Additionally, DFT was done to understand that low B doping concentration is optimum for H₂ evolution, while B substitution of N sites takes place in BCN. Thus, boron doping improves charge separation and enhances light absorption, required for improved PEC/PC performances. These findings, highlight that boron-doped GCN is a viable and cost-effective photocatalyst for solar-driven hydrogen production.

氢是全球可持续发展的关键清洁能源载体，太阳能驱动的水分解技术在高效生产氢和减少对化石燃料的依赖方面发挥着至关重要的作用。石墨化氮化碳（g-C₃N₄，GCN）催化剂具有可见光活性、低成本、窄带隙、无毒、稳定性好、易于合成等优点，在光催化领域具有广阔的应用前景。本研究重点研究了热聚合法制备GCN，并进一步探讨了硼掺杂（BCN）对所得材料的电子、光学和催化性能的影响。光电催化（PEC）测量结果表明光电流密度有所提高，而光催化（PC）测量结果表明每0.1 g BCN的光电流密度为518 μmol H 2，是原始GCN的1.64倍。此外，DFT还发现低B掺杂浓度最有利于H2的演化，而B取代N位点则发生在BCN中。因此，硼掺杂改善了电荷分离，增强了光吸收，这是改善PEC/PC性能所必需的。这些发现突出表明，硼掺杂GCN是一种可行且具有成本效益的太阳能驱动制氢光催化剂。

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引用次数: 0

Iron and cobalt co-doped ZnO nanoparticles grafted over CNTs: An efficient electrochemical probe for the detection of paracetamol 碳纳米管接枝铁钴共掺杂ZnO纳米粒子：一种检测扑热息痛的高效电化学探针

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-26 DOI: 10.1016/j.diamond.2026.113367

Sajid Ali Madni , Abid Ali , Murat Kaleli , Salih Akyürekli , Mashael M. Alharbi , Nadiah Al-Mutlaq , Imene Bayach , Amel Y. Ahmed

Acetaminophen (paracetamol), a widely used analgesic and antipyretic, requires precise and sensitive detection for pharmaceutical and clinical applications. Iron and Cobalt (Fe/Co) co-doped ZnO@CNTs nanocomposites, synthesized via a precipitation method has been developed for the electrochemical detection of acetaminophen. These nanocomposites were doped with equimolar amount of Fe/Co with the concentrations of 1%, 5%, and 10% to optimize the electrocatalytic performance of nanocomposites (ZnO@CNTs). Characterization using Scanning Electron Microscopy (SEM), Transmission Electron Microscopy (TEM) Energy-Dispersive X-ray Spectroscopy (EDX), and X-ray Diffraction (XRD) and Raman spectroscopy confirmed the successful metallic doping and uniform dispersion within the composite matrix. While, electrochemical studies, including cyclic voltammetry (CV), scan rate analysis, and chronoamperometry, revealed that the 1% doped concentration achieved the lowest limit of detection (LOD), significantly enhancing electron transfer kinetics and sensitivity for acetaminophen detection. 1% Fe/Co doped ZnO@CNT showed lowest LOD of 0.045 μM with high sensitivity of 1.862 μA mM⁻¹ cm⁻². The Fe/Co-doped ZnO@CNTs nanocomposites demonstrated outstanding sensitivity, stability, and reproducibility, underscoring their potential for practical acetaminophen analysis.

对乙酰氨基酚（paracetamol）是一种广泛应用的镇痛解热药，在制药和临床应用中需要精确、灵敏的检测方法。采用沉淀法合成了铁和钴（Fe/Co）共掺杂ZnO@CNTs纳米复合材料，用于对乙酰氨基酚的电化学检测。这些纳米复合材料分别以1%、5%和10%的浓度掺杂等摩尔量的Fe/Co以优化纳米复合材料的电催化性能（ZnO@CNTs）。利用扫描电子显微镜（SEM）、透射电子显微镜（TEM）、能量色散x射线能谱（EDX）、x射线衍射（XRD）和拉曼光谱进行表征，证实了金属在复合基体内的成功掺杂和均匀分散。而电化学研究，包括循环伏安法（CV）、扫描速率分析和计时安培法，表明1%的掺杂浓度达到了最低检测限（LOD），显著提高了对乙酰氨基酚检测的电子转移动力学和灵敏度。掺1% Fe/Co ZnO@CNT的最低LOD为0.045 μM，灵敏度为1.862 μA mM−1 cm−2。Fe/ co掺杂ZnO@CNTs纳米复合材料表现出出色的灵敏度、稳定性和可重复性，强调了它们在实际对乙酰氨基酚分析中的潜力。

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引用次数: 0

A novel fabrication method of small arc-shaped CVD diamond roller wheel using mechanical grinding truing and femtosecond laser sharpening 提出了一种利用机械磨铣和飞秒激光锐化加工小圆弧型CVD金刚石滚轮的新方法

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-26 DOI: 10.1016/j.diamond.2026.113369

Longzhou Dai , Zhengchao wan , Mingjun Zhang , Genyu Chen , Cong Mao , Yuanqiang Luo , Weidong Tang , Bo Cheng

The small arc-shaped CVD diamond roller wheel has broad application prospects in the preparation of micro-structured cutting tools. However, CVD diamond material has good wear resistance, which makes it extremely difficult to dress its small arc-shaped profile. In this work, the oblique line interpolation tangential envelope method is proposed to dress the small arc-shaped CVD diamond roller wheel. This method utilizes the squeezing contact points of two rotating wheels on the dressing path to form the required small arc-shaped profile. This can simultaneously avoid uneven loss of the tool wheel and interference with the installation accuracy of the machine tool, improving the dressing precision of arc-shaped profile. The profile errors caused by different machine tool motion axis are analyzed. The corresponding profile error prediction models have been established. In order to improve the truing accuracy of CVD diamond roller wheel, a segmented arc compensation method is proposed. Finally, femtosecond laser processing technology is used to achieve sharpening of CVD diamond roller wheel. The abrasive particles have a suitable blade height to facilitate the excellent grinding performance of the roller wheel.

小圆弧型CVD金刚石滚轮在微结构刀具的制备中具有广阔的应用前景。然而，CVD金刚石材料具有良好的耐磨性，这使得其小弧形轮廓极难修饰。本文提出了斜插补切包络法对小圆弧型CVD金刚石滚轮进行修整。该方法利用修整路径上两个转轮的挤压接触点形成所需的小弧形轮廓。这样可以同时避免砂轮的不均匀损耗和对机床安装精度的干扰，提高弧形轮廓的修整精度。分析了不同机床运动轴引起的轮廓误差。建立了相应的剖面误差预测模型。为了提高CVD金刚石滚轮的加工精度，提出了一种分段电弧补偿方法。最后，利用飞秒激光加工技术实现了CVD金刚石滚轮的锐化。磨料颗粒具有合适的刃高，有利于滚轮的优异磨削性能。

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引用次数: 0

Facile synthesis of mesoporous ZnCo2O4 anchored on coffee ground/orange peel-derived carbon as an advanced electrode for energy storage 介孔ZnCo2O4锚定在咖啡渣/橘子皮衍生碳上的简单合成作为一种先进的储能电极

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-24 DOI: 10.1016/j.diamond.2026.113363

Yu-Cheng Chang, Shao-Ru Chang

The escalating global energy demand and the intermittency of renewable energy sources necessitate the urgent development of sustainable, high-performance energy storage systems, such as supercapacitors. This study aims to engineer a novel hybrid electrode by integrating a redox-active bimetallic oxide with a sustainable biomass-derived carbon scaffold to overcome the energy density limitations of conventional carbon materials. A green and cost-effective strategy was developed to synthesize a CGOP@ZnCo₂O₄ composite by coupling coffee ground/orange peel-derived carbon (CGOP) with ZnCo₂O₄ nanostructures via a wet-chemical route and thermal annealing. The biocarbon framework, derived from sustainable biomass, provides a highly conductive network and an abundance of oxygen- and nitrogen-containing functional groups that facilitate uniform growth and strong interfacial bonding of ZnCo₂O₄. Systematic optimization of the annealing temperature and precursor ratios revealed that the composite prepared at 450 °C with 0.134 mmol Zn(NO₃)₂ and 1.33 mmol Co(NO₃)₂ exhibited a hierarchically porous and well-crystallized architecture. This structural synergy between mesoporous biocarbon and crystalline ZnCo₂O₄ enables rapid ion diffusion and efficient charge transport, resulting in an outstanding specific capacitance of 556.1 F/g at 1 A/g and excellent cycling stability, with 81.1% retention after 5000 cycles. Furthermore, the reduced charge-transfer resistance and pseudocapacitive behavior confirm the improved electrochemical kinetics of the optimized composite. This work demonstrates an environmentally benign route for constructing a high-performance ZnCo₂O₄-based electrode through effective biocarbon coupling, offering a promising pathway for sustainable and scalable energy storage applications.

不断增长的全球能源需求和可再生能源的间歇性，迫切需要开发可持续的高性能储能系统，如超级电容器。本研究旨在通过整合氧化还原活性双金属氧化物和可持续的生物质衍生碳支架来设计一种新型混合电极，以克服传统碳材料的能量密度限制。采用湿化学和热退火的方法，将咖啡渣/橘子皮衍生碳（CGOP）与ZnCo2O4纳米结构偶联，制备了一种绿色、经济的CGOP@ZnCo2O4复合材料。来源于可持续生物质的生物碳框架提供了高导电性网络和丰富的含氧和含氮官能团，促进了ZnCo2O4的均匀生长和强界面键合。系统优化退火温度和前驱体配比后发现，在450°C下制备的复合材料具有0.134 mmol Zn(NO3)2和1.33 mmol Co(NO3)2，具有分层多孔和良好结晶结构。这种介孔生物碳和晶体ZnCo2O4之间的结构协同作用使离子快速扩散和有效的电荷传输成为可能，从而产生出色的比电容，在1 A/g时达到556.1 F/g，并且具有出色的循环稳定性，在5000次循环后保持81.1%的保留率。此外，电荷转移电阻和赝电容行为的降低证实了优化后的复合材料的电化学动力学得到改善。这项工作展示了一种通过有效的生物碳偶联构建高性能znco2o4基电极的环保途径，为可持续和可扩展的储能应用提供了一条有前途的途径。

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引用次数: 0

A review: Preparation and application of biomass based carbon aerogel 综述：生物质基碳气凝胶的制备及应用

IF 5.1 3区材料科学 Q2 MATERIALS SCIENCE, COATINGS & FILMS

Diamond and Related Materials

Pub Date : 2026-01-24 DOI: 10.1016/j.diamond.2026.113361

Hanqing Peng , Zuozhao Zhai , Bin Ren

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.

生物质资源的利用不仅可以缓解能源短缺和环境问题，而且有助于可持续发展。以生物质为原料制备碳气凝胶，可以实现废弃物资源的高效利用。本文综述了生物质基碳气凝胶的制备及其应用。首先，本文系统地解构了典型生物质原料（纤维素、几丁质、淀粉和海藻酸钠）的内在分子结构和化学结构，并阐明了这些内在特征如何决定凝胶化途径、孔隙结构演化和最终碳骨架的功能。然后，本文进一步介绍了其在水处理、储能、电磁干扰屏蔽、气体吸附、隔热和传感等方面的应用。本文重点分析了生物质CAs可定制的分层孔隙/表面化学与其性能之间的机制联系。最后，确定了阻碍工业转化的关键挑战，包括缺乏主导的高性能前驱体，低碳化率和能源密集型冷冻干燥瓶颈。本综述旨在为生物质基碳气凝胶从实验室的好奇心向可定制的高性能材料过渡提供一个基础框架和前瞻性的设计逻辑，用于先进的可持续技术。

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引用次数: 0