간행물

Carbon Letters KCI 등재 Carbon letters

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Vol.35 No.5 (2025년 10월) 9

1.
2025.10 구독 인증기관 무료, 개인회원 유료
Carbon electrodes, renowned for their excellent moisture and air stability, present a compelling alternative to unstable hole transport materials and costly metal electrodes. In carbon electrode-based perovskite solar cells (C-PSCs), organic materials play a crucial role in optimizing the surface characteristics and electrochemical performance of carbon electrodes, thereby enhancing the photoelectric conversion efficiency. By incorporating organic material additives to modulate the pore structure and surface chemistry of carbon electrodes, the processes of photon absorption and electron transport can be effectively promoted, leading to an improvement in device performance. This article comprehensively reviews the latest research progress of organic C-PSCs, covering their device structures, working principles, as well as the modification methods, advantages, and application effects of organic materials in different layers of C-PSCs. Finally, the applications of in-situ characterization and first-principles calculations in this field are briefly introduced, providing theoretical and experimental support for in-depth research. Based on the above research and analysis, optimization strategies such as enhancing charge selectivity, improving the contact between the electrode and the perovskite layer, and enhancing the quality of the perovskite layer are proposed to drive the further development of organic C-PSCs.
6,700원
2.
2025.10 구독 인증기관 무료, 개인회원 유료
Single-walled carbon nanotubes (SWCNTs) are a promising material for advancing the field of materials. However, controlling the controlled growth of SWCNTs by conventional chemical vapor deposition or other growth processes remains challenging. Recent studies have shown that some progress has been made in the synthesis mechanism, catalysts and growth processes of SWCNTs, which makes the controlled growth of SWCNTs possible. This paper reviews the common SWCNTs, the synthesis process, and the applications. The paper firstly discusses the differences in the structure and properties of different types of SWCNTs and the related studies on these properties. Next, the paper discusses the mechanisms, catalysts, and growth processes used to synthesize SWCNTs, from experimental characterization to simulation analysis. Subsequently, the paper describes some applications of SWCNTs in popular fields such as functionalization, transistors, electrochemistry, and so on. Finally, a brief outlook on the challenges and future development of these SWCNTs in the research field is presented.
7,800원
3.
2025.10 구독 인증기관 무료, 개인회원 유료
Carbon nanotube (CNT) has promising applications in several fields due to their excellent thermal, electrical, mechanical, and biocompatible properties. However, the complexity of its structure leads to the problems of computationally intensive and inefficient synthetic characterization optimization and prediction by traditional research methods, which seriously restricts the development process. Machine learning (ML), as an emerging technology, has been widely used in CNT research due to its ability to reduce computational cost, shorten the development cycle, and improve the accuracy. ML not only optimizes the synthetic control parameters for precise structural control, but also combines various imaging and spectroscopic techniques to significantly improve the accuracy and efficiency of characterization. In addition, ML helps to improve the performance of CNT devices at the optimization and prediction levels, and achieve accurate performance prediction. However, ML in CNT research still faces challenges such as algorithmic processing of complex data situations, insufficient space for algorithmic combined optimization, and lack of model interpretability. Future research can focus on developing more efficient ML algorithms and unified standardized databases, exploring the deep integration of different algorithms, further improving the performance of ML in CNT research, and promoting its application in more fields.
8,900원
4.
2025.10 구독 인증기관 무료, 개인회원 유료
Electrospun nanofibers have emerged as transformative materials due to their unparalleled surface-to-volume ratios, tunable porosity, and excellent mechanical flexibility, making them suitable for energy storage, catalysis, biomedicine, and environmental remediation. However, their inherent surface limitations—poor chemical stability, insufficient active sites, and limited functionality—restrict their full potential. Chemical vapor deposition (CVD) has risen as a game-changing postsynthesis modification strategy, enabling atomic-scale precision in surface engineering. This is also impactful for carbonbased nanofibers, where surface inertness limits their electrochemical performance. This review critically examines advanced CVD techniques, including atomic layer deposition (ALD), plasma-enhanced CVD (PECVD), and initiated CVD (iCVD), which enable the formation of conformal coatings, hierarchical functionalization, carbon nanotube integration, and interfacial optimization of as-spun nanofibers. We highlight breakthroughs in hydrophobicity, catalytic activity, biocompatibility, and energy storage performance, with applications ranging from oil–water separation to nerve gas detoxification, pH-responsive drug delivery, and high-capacity carbon-composite lithium-ion batteries. By dissecting deposition mechanisms, material innovations, and emerging applications, this work highlights the synergy between as-spun nanofibers and the exploitation of CVD techniques in designing versatile materials. Furthermore, advancements hinge on computational modeling, novel precursors, including carbon-rich sources, and scalable processes to bridge lab-scale innovations with industrial deployment are desired. This comprehensive analysis provides a guiding framework for researchers utilizing CVD techniques as a postmodification tool to develop nanofiber-based solutions addressing global challenges in sustainability, healthcare, and energy.
5,700원
5.
2025.10 구독 인증기관 무료, 개인회원 유료
Rapid accumulation of waste tires from automobile industries across the globe poses significant environmental challenges due to their non-biodegradability, complex chemical composition and current disposal techniques. Thus, there is an urgent need to consider recycling and transformation of these waste tires into functional materials while promoting the circular economy and environmental sustainability. Recent advancements in material science research have highlighted the potential of converting waste tires into valuable porous carbon materials based on their rich carbon polymeric composition. Among the various conversion techniques, carbonization and activation have been shown to yield microporous, mesoporous and macroporous carbon with a large specific surface area up to 2450 m2g− 1 with doped heteroatoms (P, B, N and O) that enhances its surface chemistry in diverse applications. Thus, this review looks to investigate various processes involved in converting waste tires into high-performance porous carbon for electrocatalysis, adsorbents, catalyst support, and electrodes for energy storage devices. It also highlights the recent trend of tire compositions, tire chemistry in terms of vulcanization and devulcanization towards a greener economy. Additionally, it proposes future research directions to enhance the viability of waste tire-derived porous carbon materials.
6,400원
6.
2025.10 구독 인증기관 무료, 개인회원 유료
Doping diamond exhibits excellent photoelectric properties, making it promising for applications in wide-bandgap semiconductors, high-temperature devices, and high-power electronics. However, research on n-type doping remains limited. This paper reviews the main n-type doping methods for diamond: ion implantation (I/I), chemical vapor deposition (CVD), high pressure–high temperature (HPHT), deuterated method (DM), surface charge transfer doping (SCTD), and laser irradiation (LI). It analyzes the parameters, advantages, and disadvantages of each technique while classifying common single-element and multi-element co-doping methods. Single-element dopants include Group IA (Li, Na, K), Group ⅡA (Be, Mg), Group VA (N, P, As, Sb), and Group ⅥA (O, S, Se, Te) elements. Multi-element co-doping often combines B-P, B-S, B-O, and B-N pairs. Additionally, we examine the atomic structures of these dopants, introduce commonly used simulation models, and compare the electronic characteristics of synthesized n-type doping diamonds. Finally, we summarize the challenges of n-type doping diamond in doping equipment, processes, and electronic devices, and propose possible improvements and future development directions.
6,900원
7.
2025.10 구독 인증기관 무료, 개인회원 유료
CNT/epoxy composite film (CECF) was prepared and used to fabricate the interlayer stiffened and reinforced photothermal synergistic curing glass fiber-reinforced polymer (GFRP) composites, and the influence of the photothermal effects of CECF on compressive strength and failure mechanism of the composite was investigated. Compared to GFRP composite, the uniform and wide temperature distribution in the in-plane and thickness direction was exhibited due to the heat from the lattice vibrations induced by photothermal conversions of CECF, thereby facilitating the decomposition of the thermal initiator and the increase of the curing degree in the CECF/GFRP composite. The in-plane shear modulus and interlaminar shear strength (ILSS) of the CECF/GFRP composite were 12.2% and 13.7% higher than those of the GFRP composite, respectively, indicating the enhanced deformation resistance and interfacial adhesion of the interlayer region. The compressive strength of the CECF/GFRP composite was increased by 14.1% relative to the GFRP composite, which was ascribed to restricted kink-band and delayed delamination damage during the compression process of composite.
4,000원
8.
2025.10 구독 인증기관 무료, 개인회원 유료
Modifying the softening point (SP) of pitch is crucial owing to its substantial influence on pitch applicability. This study presents a novel fluorination technique for engineering the SP of mesophase pitch (MP). Low-concentration fluorine gas was used to modify the edge sites of the MP, allowing for either an increase or decrease in the SP by controlling the gas reactivity. The fluorination was conducted with 20 vol% F2 gas under reaction temperature of 25, 50, and 75 ℃ for 2 h in atmospheric pressure. A reduction in SP was achieved through edge alkylation, with a decrease of up to 14.1% observed after the fluorination. Conversely, an increase in SP resulted from edge dealkylation at higher reaction temperatures. As the modified MPs retained perfect anisotropy, this study offers an effective strategy for adjusting the SP to meet application needs without causing structural deterioration.
4,000원
9.
2025.10 구독 인증기관 무료, 개인회원 유료
Efficient energy conversion technologies require cost-effective and durable catalysts for water oxidation. This study presents SnS2/ C composite synthesized via solvothermal method to enhance electrocatalytic performance in water splitting. Morphological analysis reveals that carbon incorporation disrupts the flower-like SnS2 nanosheets, increasing active site accessibility and improving charge transfer efficiency. Three different electrolytes (KOH, PBS and H2SO4) are systematically employed to evaluate the material’s electrocatalytic activity comprehensively. The electrochemical tests indicate that pure SnS₂ exhibits an overpotential (η) of 410 mV at 10 mA/cm2 for oxygen evolution reaction (OER) in 1 M KOH. Integration of carbon significantly lowers this value to 180 mV with a tafel slope of 103 mV/dec for SSC12 (1:2 SnS₂/C) composite. For hydrogen evolution reaction (HER) in acidic media, SSC12 achieves an η of 275 mV at 500 mA/cm2 with a tafel slope of 121 mV/dec. The catalyst further demonstrates strong durability for OER in 1 M KOH but shows diminished HER activity in 0.5 M H2SO4. This study demonstrates the synergistic role of carbon in enhancing SnS₂ catalytic attributes, emphasizing the potential of these composites for sustainable energy conversion applications.
4,600원