Carbon Trends最新文献_第10页

Synthesis of S-doped mesoporous carbon and its use in advanced supercapacitors and sodium-ion batteries s掺杂介孔碳的合成及其在先进超级电容器和钠离子电池中的应用

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-08 DOI: 10.1016/j.cartre.2025.100558

Zha-Xi Wan-Me, Hai-Tao Zhang, Yang Zhao, Hui-Zhan Wen, Xue-Ying Wan, Yu-Long Xie

Rational design of mesoporous carbon materials with controllable pore structures and higher specific surface areas has always been a daunting challenge in advanced energy materials. Here, we propose a simple hydrothermal synthesis strategy for the preparation of sulfur-doped mesoporous carbon (SMC), which exhibits hierarchical porosity and a significantly increased specific surface area (650.22 m² g^-1). This structure is constructed through the molecular assembly of phenolic resin precursors with bifunctional sodium sulfate (simultaneously achieving sulfur doping and pore modulation), mediated by Pluronic F127 triblock copolymer as a mesostructure directing agent. System characterization indicates that the optimized SMC-0.1 material possesses excellent electrochemical properties: (1) as a supercapacitor electrode, it provides an outstanding specific capacitance of 188.9 F g^-1 at 0.5 A g^-1; (2) the fabricated symmetrical device (SMC-0.1//SMC-0.1) achieves an energy density of 5.12 Wh kg^-1 at a power density of 150.07 W kg^-1 in a 6 M KOH electrolyte; (3) when used as a sodium-ion battery anode, SMC-0.1 exhibits excellent rate capability and improved Na⁺ diffusion kinetics. This study proposes a general heteroatom doping method to design multifunctional carbon structures with broad applicability in advanced energy systems.

合理设计具有可控孔隙结构和较高比表面积的介孔碳材料一直是先进能源材料领域的一大难题。在这里，我们提出了一种简单的水热合成策略来制备硫掺杂介孔碳（SMC），该策略具有分层孔隙度和显着增加的比表面积（650.22 m2 g-1）。该结构是通过酚醛树脂前体与双功能硫酸钠的分子组装（同时实现硫掺杂和孔调制），由Pluronic F127三嵌段共聚物作为介观结构导向剂介导而构建的。系统表征表明，优化后的SMC-0.1材料具有优异的电化学性能：(1)作为超级电容器电极，在0.5 a g-1下具有188.9 F -1的优异比电容；(2)所制备的对称器件（SMC-0.1//SMC-0.1）在6 M KOH电解液中，以150.07 W kg-1的功率密度实现了5.12 Wh kg-1的能量密度；(3) SMC-0.1作为钠离子电池负极时，表现出优异的倍率性能和改善的Na+扩散动力学。本研究提出了一种通用的杂原子掺杂方法来设计在先进能源系统中具有广泛适用性的多功能碳结构。

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引用次数: 0

Low-temperature active site formation for oxygen reduction reaction in (Fe, N)-doped carbon black via rapid thermal annealing （Fe， N）掺杂炭黑快速热退火氧还原反应的低温活性位形成

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-07 DOI: 10.1016/j.cartre.2025.100556

Guanyu Wang, Lijie Zhang, Atsunori Ikezawa, Hajime Arai, Keiko Waki

Nitrogen- and iron- doped carbon-based materials are promising oxygen reduction reaction (ORR) catalysts that can replace precious platinum-based catalysts. Among carbon-based materials, carbon black (CB) is attractive owing to its high surface areas, high wettability and high intrinsic electrical conductivity, and it has been reported that high annealing temperatures such as 900 °C is required to introduce FeNx active sites to CBs. In this study, we used defective acid-treated CBs that are suitable for FeNx accommodation, and employed direct nitrogen doping of iron-added defective CBs by rapid thermal annealing in ammonia. As a result, it was shown that the FeN_x active sites can be formed at a low temperature of 500 °C. We then comparatively explored the relationship between the annealing temperatures (500 °C, 700 °C and 900 °C) and the characteristics of the products including the ORR activity, and found that the highest ORR activity is obtained with a sample annealed at 700 °C. The Raman spectroscopy, transmission electron microscopy and X-ray absorption spectroscopy indicate that the FeN_x species transform into FeN₄ configurations in the edge with the optimized defect levels at 700 °C, resulting in high ORR activity. Further increasing the temperature to 900 °C leads to the evolution of FeNx species into FeN₂ configurations along with increased Fe nanoparticle aggregation, which diminishes catalytic performance.

氮掺杂和铁掺杂碳基材料是很有前途的氧还原反应（ORR）催化剂，可以取代贵重的铂基催化剂。在碳基材料中，炭黑（CB）因其高表面积，高润湿性和高本征电导率而具有吸引力，并且有报道称需要900℃的高温退火才能将FeNx活性位点引入到CB中。在本研究中，我们使用了适合于FeNx调节的缺陷酸处理CBs，并通过在氨中快速热退火的方法将添加铁的缺陷CBs直接氮掺杂。结果表明，在500℃低温下可以形成FeNx活性位。然后，我们比较探讨了退火温度（500°C， 700°C和900°C）与产品特性（包括ORR活性）之间的关系，发现在700°C退火的样品获得了最高的ORR活性。拉曼光谱、透射电镜和x射线吸收光谱分析表明，在700℃时，FeNx在缺陷水平优化的边缘转变为FeN4构型，导致ORR活性较高。当温度进一步升高到900℃时，随着Fe纳米粒子聚集的增加，fex向fe2结构演化，从而降低了催化性能。

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引用次数: 0

Electrochemical preparation of exfoliated graphite composites from a ferric chloride-graphite intercalation compound 氯化铁-石墨插层化合物制备剥离石墨复合材料的电化学研究

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-07 DOI: 10.1016/j.cartre.2025.100560

Keita Niitani , Masayuki Morita , Takeshi Abe

Exfoliated graphite-based composites have attracted attention across various fields, such as fuel cells and sensors. Herein, we present a facile method to prepare exfoliated graphite composites containing metal compounds. A FeCl₃-graphite intercalation compound is first synthesized from raw graphite powder and then exfoliated by electrochemical reduction in aqueous KOH solutions. Structural analysis reveals that the exfoliated graphite comprises carbon layers that encapsulate KCl and Fe particles. Furthermore, we discuss the reaction mechanism based on the relation between the KOH concentration and the electrochemical potential.

剥离石墨基复合材料已经引起了燃料电池和传感器等各个领域的关注。本文提出了一种制备含金属化合物的剥离石墨复合材料的简便方法。以石墨粉为原料合成了fecl3 -石墨插层化合物，并在KOH水溶液中进行电化学还原剥离。结构分析表明，剥落石墨由包裹KCl和Fe颗粒的碳层组成。根据KOH浓度与电化学电位的关系，讨论了反应机理。

引用次数: 0

Synthesis of activated carbon from Balanites aegyptiaca and hyphaene thebaica shells by physical activation 以埃及巴兰和白炭黑壳为原料物理活化合成活性炭

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-06 DOI: 10.1016/j.cartre.2025.100555

Maâzou Siragi D B , Ibrahim Natatou , Vincent Dubois

Activated carbon is a porous material that has several applications, including in the fields of adsorption and catalysis. This material can be obtained from any lignocellulosic biomass. The aim of this work is to synthesize activated carbon (AC) from Balanites aegyptiaca (BA) and Hyphaene thebaica (HT) shells. The material is obtained after physical activation under nitrogen or carbon dioxide flow. The characterization of the material has been carried out using a variety of analytical methods, including nitrogen adsorption at 77 K to determine its porosity and specific surface area, the iodine index and methylene blue index tests. Surface functions, pH to point of zero charge measurement to determine its acidity, and X-ray diffraction to examine its structural properties. The most optimal values for specific surface area and porous volume are 939 m²/g and 0.572 cm³/g, respectively, for Balanites aegyptiaca. For Hyphaene thebaica, they are 1329 m²/g and 0.589 cm³/g. It is noteworthy that 62 % of the samples have mean pore diameters higher than 20 Å. The results of the iodine and methylene blue index tests show that the samples have a satisfactory adsorption capacity within the aqueous phase. The surface functions of the activated carbons prepared are basic, with pH values ranging from 10.2 to 10.8 at the point of zero charge. The structure of these materials is amorphous, with fine graphitic zones.

活性炭是一种多孔材料，具有多种用途，包括吸附和催化领域。这种材料可以从任何木质纤维素生物质中获得。以埃及巴兰（Balanites aegyptiaca， BA）和海丝贝（Hyphaene thebaica， HT）壳为原料合成活性炭（AC）。物料在氮气或二氧化碳流下经物理活化而得。使用多种分析方法对材料进行了表征，包括在77 K下氮气吸附测定其孔隙率和比表面积，碘指数和亚甲基蓝指数测试。表面功能，pH值到零电荷点测量确定其酸度，x射线衍射检查其结构性质。埃及Balanites的最优比表面积和孔隙体积分别为939 m²/g和0.572 cm³/g。对于连苯，它们分别是1329 m²/g和0.589 cm³/g。值得注意的是，62%的样品的平均孔径大于20 Å。碘和亚甲基蓝指数测试结果表明，样品在水相内具有满意的吸附能力。所制备的活性炭表面功能为碱性，在零电荷点的pH值为10.2 ~ 10.8。这些材料的结构是无定形的，具有精细的石墨带。

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引用次数: 0

A review of the development of graphene material preparation via chemical approaches 综述了化学法制备石墨烯材料的研究进展

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-06 DOI: 10.1016/j.cartre.2025.100557

Abeer M. Almusaad , Fayez M. Al-Alweet , Riyadh H. Alshammari , Bandar M. AlOtaibi , Tahani S. Algarni , Fahad S. Alkasmoul , Basheer A. Alshammari

Graphene nanomaterials have become the focus of scientific research and development activities due to unique physical and chemical properties. A widespread technique for the large-scale synthesis of graphene nanoparticles is referred to as "Hummer's" method. This process often produces hydrophilic functionalized graphene-based materials, referred to as graphene oxide (GO) and reduced graphene oxide (r-GO). It relies on the use of oxidation steps to achieve exfoliation of graphite micromaterials as raw resources to obtain graphite oxide also known as graphitic acid followed by further exfoliation techniques to attain GO materials. The different exfoliation degrees can be obtained by various standard amounts of chemical acids, which lead to different functional groups containing oxygen at various degrees of oxidation, which have effects on the electrochemical and physic-chemical characteristics. Understanding the structure of such graphite oxide has been involved in advancing the synthesis chemical methods, paving the way for the development of diverse graphene-based materials Therefore, the chemical synthesis progress based on Hummer's” approaches to prepare graphene nanomaterials have been reviewed. Also, development directions and the existing challenges are explained for pretreatment and surface functional modification for such nanomaterials.

石墨烯纳米材料由于其独特的物理和化学性质，已成为科学研究和开发活动的热点。大规模合成石墨烯纳米颗粒的广泛技术被称为“悍马”方法。该工艺通常会产生亲水性功能化石墨烯基材料，称为氧化石墨烯（GO）和还原氧化石墨烯（r-GO）。它依赖于使用氧化步骤来实现石墨微材料的剥落，作为原料资源，以获得氧化石墨，也称为石墨酸，然后通过进一步的剥落技术来获得氧化石墨烯材料。不同标准量的化学酸可以获得不同的剥离程度，从而导致不同氧化程度的含氧官能团不同，这对电化学和物理化学特性都有影响。了解这种氧化石墨的结构有助于推进化学合成方法的发展，为开发各种石墨烯基材料铺平了道路。因此，本文综述了基于Hummer方法制备石墨烯纳米材料的化学合成进展。阐述了纳米材料的预处理和表面功能改性的发展方向和存在的挑战。

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引用次数: 0

Electrochemical sensing of benzodiazepines: Tracing the evolution of carbonaceous nano-hybrid materials from 3D to 0D, their integration into smart technologies for real-time monitoring 苯二氮卓类药物的电化学传感：追踪碳质纳米杂化材料从3D到0D的演变，并将其集成到实时监测的智能技术中

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100548

Darshana Chatterjee, Ida Tiwari

The misuse of benzodiazepines, often implicated in drug-facilitated crimes, presents a significant global concern, profoundly affecting public health and safety. In response to the growing need for rapid, sensitive, and on-site detection methods, this review aims to critically evaluate the current landscape of electrochemical sensing of benzodiazepines. The main objective is to consolidate fragmented research findings on a singular platform and trace the progression of carbonaceous nanohybrid materials from early 3D frameworks to modern 0D structures into a cohesive overview that highlights emerging trends and innovations. We also aim to evaluate how this transformation has enhanced sensor performance. Unlike previous reviews that predominantly focus on conventional gold-standard techniques such as chromatographic and spectroscopic methods, this work focuses exclusively on electrochemical sensing as a promising, portable, and real-time alternative. This evolutionary approach has led to considerable improvements in sensitivity, selectivity, and portability, making these systems increasingly suitable for field-deployable applications. By highlighting key advances especially in graphene oxide (GO), carbon nanotubes (CNTs), fullerenes, quantum dots (QDs) and their metal-oxide-supported nanocomposites, this review underscores how nanostructure dimensionality directly influences electrochemical response. Furthermore, it explores the integration of these advanced materials into smart sensing platforms including those with AI-enabled features, positioning them as next-generation solutions. This work not only maps current advancements but also identifies future research directions bridging the gap between laboratory research and deployable forensic tools.

滥用苯二氮卓类药物往往与毒品促成的犯罪有关，是全球关注的一个重大问题，深刻影响到公共健康和安全。为了满足对快速、灵敏和现场检测方法日益增长的需求，本综述旨在批判性地评估苯二氮卓类药物电化学传感的现状。主要目标是将零散的研究成果整合到一个单一的平台上，并将碳质纳米杂化材料从早期的3D框架到现代的0D结构的进展追踪到一个突出新兴趋势和创新的有凝聚力的概述。我们还旨在评估这种转变如何提高传感器性能。与以往主要关注传统金标准技术（如色谱和光谱方法）的综述不同，这项工作专门关注电化学传感作为一种有前途的、便携式的和实时的替代方法。这种进化的方法在灵敏度、选择性和可移植性方面有了相当大的改进，使这些系统越来越适合于现场部署应用。通过重点介绍氧化石墨烯（GO）、碳纳米管（CNTs）、富勒烯、量子点（QDs）及其金属氧化物支撑的纳米复合材料的关键进展，本文重点介绍了纳米结构维度如何直接影响电化学响应。此外，它还探索了将这些先进材料集成到智能传感平台中，包括具有人工智能功能的智能传感平台，将其定位为下一代解决方案。这项工作不仅描绘了当前的进展，而且确定了未来的研究方向，弥合了实验室研究和可部署的法医工具之间的差距。

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引用次数: 0

Modeling the effect of pitting on the tensile behavior of amorphous carbon and carbon fiber 模拟点蚀对非晶碳和碳纤维拉伸性能的影响

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100549

Victoria Arias , Sam Chen , Justin B. Haskins , Francesco Panerai , Harley T. Johnson , Kelly A. Stephani

FiberForm, the substrate of the Phenolic Impregnated Carbon Ablator (PICA), contains various fundamental forms of carbon, including vitreous or highly ordered graphitic regions in the carbon fiber core and amorphous or turbostratic carbon in the binder material, which provides stiffness to the material. In this study, we use the AIREBO potential to investigate the effect of pitting on the elastic properties of carbon fiber (CF) and amorphous carbon (AC). The generation, structural characterization, and loading of pristine AC and CF are compared with their pitted counterparts over a range of densities (1.27 g/cm³ to 2.93 g/cm³) and porosities. Results show a reduction of up to 18.7% in elastic modulus for AC and a reduction of 13.7% in modulus for CF. We also observe AC to have weaker tensile behavior for both oxidized and pristine states, supporting the hypothesis that FiberForm is likely to fail at the binder. The present work advances fundamental understanding of the coupling between oxidation and mechanical behavior of carbon-based TPS materials and serves as a basis for larger-scale simulations.

酚醛浸渍碳烧蚀器（PICA）的基材FiberForm含有各种基本形式的碳，包括碳纤维芯中的玻璃状或高度有序的石墨区域，以及粘合剂材料中的非晶态或涡层碳，这为材料提供了刚度。在这项研究中，我们使用AIREBO电位来研究点蚀对碳纤维（CF）和非晶碳（AC）弹性性能的影响。在密度（1.27 g/cm3至2.93 g/cm3）和孔隙率范围内，将原始AC和CF的生成、结构表征和负载与它们的点蚀对应物进行了比较。结果表明，AC的弹性模量降低了18.7%，CF的弹性模量降低了13.7%。我们还观察到AC在氧化和原始状态下的拉伸行为都较弱，这支持了FiberForm可能在粘合剂处失效的假设。本研究促进了对碳基TPS材料氧化与力学行为耦合的基本理解，并为更大规模的模拟奠定了基础。

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引用次数: 0

Hydrogenation and etching of single-layer graphene during exposure to atomic hydrogen 暴露于氢原子时单层石墨烯的氢化和蚀刻

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100553

Tom Fournier , Samir El Masaoudi , Iann C. Gerber , Benjamin Lassagne , Cedric Crespos , Jean-Marc Leyssale , Kelvin Cruz , Germercy Paredes , Felana Andriambelaza , Marc Monthioux , Pascal Puech , Fabrice Piazza

Opening a band gap in graphene is essential for its integration into electronic devices, but remains a major challenge. Hydrogenation offers a promising route, though the process is complicated by competing mechanisms such as hydrogen desorption and unwanted etching. Here, we investigate one-sided hydrogenation of monolayer graphene on SiO₂/Si substrates at temperatures below ∼100 °C, using a hot-filament-assisted method compatible with semiconductor processing. Our results reveal a regime where hydrogen chemisorption and hole formation (etching) coexist. Dehydrogenation experiments and first-principles calculations indicate that hydrogen atoms preferentially cluster on neighboring carbon sites, potentially leading to dome-like lattice distortions. While hydrogen incorporation is favored at these sites, our simulations suggest that the resulting stresses alone are insufficient to cause carbon–carbon bond breakage. Instead, etching likely requires the presence of energetic atomic hydrogen. These findings help clarify the interplay between hydrogenation and etching and provide guidance for controlled graphene functionalization in device applications.

打开石墨烯的带隙对其集成到电子设备中至关重要，但仍然是一个主要挑战。氢化提供了一条很有前途的途径，尽管这一过程由于氢的解吸和不必要的蚀刻等相互竞争的机制而变得复杂。在这里，我们研究了在温度低于~ 100°C的sio2 /Si衬底上单层石墨烯的单侧氢化，使用与半导体加工兼容的热丝辅助方法。我们的结果揭示了氢化学吸附和空穴形成（蚀刻）共存的机制。脱氢实验和第一性原理计算表明，氢原子优先聚集在邻近的碳位上，可能导致圆顶状的晶格扭曲。虽然氢在这些位置的结合是有利的，但我们的模拟表明，仅产生的应力不足以导致碳-碳键断裂。相反，蚀刻可能需要高能氢原子的存在。这些发现有助于澄清氢化和蚀刻之间的相互作用，并为在器件应用中控制石墨烯功能化提供指导。

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引用次数: 0

Corrigendum to “Highly durable carbon fabric strain sensor: Monitoring environmental changes and tracking human motion” [Carbon Trends 19 (2025) 100457] “高度耐用的碳织物应变传感器：监测环境变化和跟踪人体运动”的勘误表[carbon Trends 19 (2025) 100457]

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100543

Tae Won Ha , Chil-Hyoung Lee , Dae Yun Lim , Young Baek Kim , Hyunjin Cho , Jin Hyeok Kim , Dong-Su Kim

引用次数: 0

Recent advancements in MXene-based catalysts: Synthesis, characterization, and applications in sustainable energy production mxene基催化剂的合成、表征及其在可持续能源生产中的应用

IF 3.9 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100551

Nur-Sultan Mussa , Kydyr Askaruly , Kalampyr Bexeitova , Seitkhan Azat , Kainaubek Toshtay

MXenes have emerged as promising two-dimensional (2D) materials for catalytic applications in energy production due to their exceptional structural, electronic, and chemical properties. Their high surface area, tunable surface terminations, and excellent electrical conductivity make them ideal candidates for facilitating surface reactions and enhancing charge transfer processes. Additionally, the ability to modify their composition and structure at the atomic level allows for the design of tailored MXene-based catalysts suited for various energy-related reactions. This review highlights recent advancements in MXene-based catalysts, focusing on novel synthesis techniques, including selective etching, CVD and ALD, as well as advanced characterization methods such as XRD, Raman spectroscopy, TEM, FTIR, and In-situ/Operando techniques. Their applications in key catalytic processes, including the Fischer-Tropsch synthesis of hydrocarbons, CO₂ hydrogenation to methane, and hydrogen production via electrochemical water splitting, are discussed, as these reactions play a crucial role in carbon utilization, energy storage, and the transition to sustainable fuels. Notably, Mo₂C-based catalysts favor heavier hydrocarbon formation, while NiV oxycarbide electrocatalysts exhibit high durability and hydrogen selectivity. These findings emphasize MXenes’ potential in sustainable energy conversion and highlight the need for further optimization to enhance their catalytic efficiency and stability.

由于其特殊的结构、电子和化学性质，MXenes已成为在能源生产中催化应用的有前途的二维（2D）材料。它们的高表面积，可调的表面末端和优异的导电性使它们成为促进表面反应和增强电荷转移过程的理想候选者。此外，在原子水平上修改其组成和结构的能力允许设计适合各种能量相关反应的基于mxene的催化剂。本文综述了mxene基催化剂的最新进展，重点介绍了新的合成技术，包括选择性蚀刻、CVD和ALD，以及先进的表征方法，如XRD、拉曼光谱、TEM、FTIR和原位/Operando技术。讨论了它们在关键催化过程中的应用，包括碳氢化合物的费托合成，CO 2加氢制甲烷和通过电化学水分解制氢，因为这些反应在碳利用，能量储存和向可持续燃料过渡中起着至关重要的作用。值得注意的是，Mo₂c基催化剂有利于形成较重的碳氢化合物，而NiV型碳化氧电催化剂具有较高的耐久性和氢选择性。这些发现强调了MXenes在可持续能源转化方面的潜力，并强调了进一步优化以提高其催化效率和稳定性的必要性。

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引用次数: 0