Carbon Letters最新文献_第2页

Lightweight flower-like nitrogen-doped carbon materials achieve efficient electromagnetic wave absorption 轻质花状氮掺杂碳材料实现高效电磁波吸收

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-23 DOI: 10.1007/s42823-025-00937-z

Xianfei Xie, Sheng Wang, Danqiang Huang, Jianfeng Dai, Qing Wang

{"title":"Lightweight flower-like nitrogen-doped carbon materials achieve efficient electromagnetic wave absorption","authors":"Xianfei Xie, Sheng Wang, Danqiang Huang, Jianfeng Dai, Qing Wang","doi":"10.1007/s42823-025-00937-z","DOIUrl":"10.1007/s42823-025-00937-z","url":null,"abstract":"<div><p>Structural design and element doping are the research hotspots in the preparation of lightweight absorbers with high absorption performance and low filling rate<b>.</b> This study employs different temperature carbonization and etching techniques to prepare the structure of hollow nitrogen-doped carbon flowers (HNC) and evaluate their microwave absorption performance. At an ultra-low filler loading of 5 wt.%, the microwave absorption intensity of HNC-800 remains stable at -50 dB with a thickness of 3.2 mm. It is noteworthy that the HNC-800 achieved the broadest effective absorption frequency band at a matching thickness of 2 mm, with a bandwidth of 5.36 GHz (ranging from 12.4 to 17.76 GHz). Such remarkable broadband and reflection loss performance can be attributed to the synergistic effects of the hollow porous network structure, interface polarization, and dipole relaxation mechanisms. More significantly, the reduction of the radar cross-section (RCS) amounts to as much as 31.67 dB m<sup>2</sup>, and it has been attested to possess excellent adsorption efficacy in practical application scenarios. HNC-800, as an absorbing material, holds potential for broad application prospects.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 5","pages":"2447 - 2458"},"PeriodicalIF":5.8,"publicationDate":"2025-06-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230398","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}

引用次数: 0

Characterization of high-temperature heat-treated bamboo-based white charcoals for lithium ion battery electrode 高温热处理竹基锂离子电池电极白炭的表征

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-21 DOI: 10.1007/s42823-025-00930-6

Young-Soon Kim, Seung-Kon Ryu, Kiseon Lee, Hyun Cho, Dong-Wha Ryu, Hong-Gun Kim, Lee-Ku Kwac

{"title":"Characterization of high-temperature heat-treated bamboo-based white charcoals for lithium ion battery electrode","authors":"Young-Soon Kim, Seung-Kon Ryu, Kiseon Lee, Hyun Cho, Dong-Wha Ryu, Hong-Gun Kim, Lee-Ku Kwac","doi":"10.1007/s42823-025-00930-6","DOIUrl":"10.1007/s42823-025-00930-6","url":null,"abstract":"<div><p>Bamboo charcoal has high ecological and economic value, and is a sustainable and valuable resource for the development of advanced materials such as supercapacitors and batteries. The carbon content in bamboo-based white charcoal produced in traditional Korean kiln reaches 100% when the charcoals heat treated up to 2400℃. X-ray diffraction shows that graphite begins to form at 1500℃, becomes more pronounced at 1800℃, and crystallizes into a dense turbostratic structure at 2000℃. At 2400℃, discrete graphite peaks are confirmed in d002 and d100 planes, while carbon isotope peaks disappear. Raman spectroscopy shows that graphite crystals form at 1800℃, as indicated by a clear 2D band at 2680 cm⁻<sup>1</sup>. At 2400℃, the height of the D band at 1350 cm⁻<sup>1</sup> is lower than that of the G band at 1580 cm⁻<sup>1</sup>, indicating a high degree of graphitization. The isothermal nitrogen adsorption–desorption curves show that the monolayer value of the sample decreases up to 1300℃, accompanied by a low-pressure hysteresis phenomenon. When heat-treated at 1500℃ or higher, this phenomenon disappears and the monolayer value decreases significantly, indicating the disappearance of micropores and occurrence of graphitization. After 10 min. of heat treatment at 2400℃, the specific surface area of the graphitized charcoal becomes 8.45 m<sup>2</sup>/g, similar to that of artificial graphite, which shows promising results of 217 mAh/g at a current density of 0.02 A/g for using in Lithium ion battery electrode.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 5","pages":"2365 - 2379"},"PeriodicalIF":5.8,"publicationDate":"2025-06-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230381","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}

引用次数: 0

Sub-nanoporous COF-TpTGCl membranes for enhanced H2/CO2 separation via steric sieving 亚纳米孔COF-TpTGCl膜通过立体筛分增强H2/CO2分离

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-20 DOI: 10.1007/s42823-025-00936-0

Xuechun Li, Desheng Xu, Yun Jin, Tingting Du, Jian Song, Yuxin Wei, Xiuxia Meng, Naitao Yang

{"title":"Sub-nanoporous COF-TpTGCl membranes for enhanced H2/CO2 separation via steric sieving","authors":"Xuechun Li, Desheng Xu, Yun Jin, Tingting Du, Jian Song, Yuxin Wei, Xiuxia Meng, Naitao Yang","doi":"10.1007/s42823-025-00936-0","DOIUrl":"10.1007/s42823-025-00936-0","url":null,"abstract":"<div><p>Covalent organic framework (COF) membranes have emerged as promising candidates for hydrogen purification due to their tunable pore sizes and robust structures. However, achieving high selectivity and permeability simultaneously remains a challenge due to the inherent pore size distribution of COF materials. In this study, we fabricated two distinct COF membranes, TpPa-1 and TpTG<sub>Cl</sub>, with pore sizes of 1.8 nm and 0.39 nm, respectively, using tailored synthesis methods. The TpTG<sub>Cl</sub> membrane, synthesized via room temperature interfacial polymerization and vacuum-assisted filtration, exhibits an ultrathin nanosheet structure with an interlayer π–π stacking distance of 0.33 nm. This unique architecture, combined with its affinity for CO<sub>2</sub> adsorption, enables exceptional hydrogen separation performance, achieving a H<sub>2</sub>/CO<sub>2</sub> selectivity of 52.5 and a H<sub>2</sub> permeability of 3.49 × 10<sup>–7</sup> mol m<sup>−2</sup> s<sup>−1</sup> Pa<sup>−1</sup>. Molecular dynamics simulations confirmed the steric hindrance effect as the primary mechanism for the selective permeation of hydrogen. The TpTG<sub>Cl</sub> membrane effectively sieves larger gas molecules (CO<sub>2</sub>, N<sub>2</sub>, CH<sub>4</sub>, etc.) without the need for material modification or excessive membrane thickness. This study demonstrates the potential of COF membranes with tailored pore sizes for high-performance hydrogen purification and offers valuable insights for the development of advanced separation technologies.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 5","pages":"2435 - 2446"},"PeriodicalIF":5.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230309","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}

引用次数: 0

Research progress on perovskite solar cells based on organic carbon electrodes 有机碳电极钙钛矿太阳能电池的研究进展

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-20 DOI: 10.1007/s42823-025-00935-1

Zhikuan Lin, Zhen Xiong, Haijun Guo, Hairong Zhang, Mengkun Wang, Lian Xiong, Xinde Chen

{"title":"Research progress on perovskite solar cells based on organic carbon electrodes","authors":"Zhikuan Lin, Zhen Xiong, Haijun Guo, Hairong Zhang, Mengkun Wang, Lian Xiong, Xinde Chen","doi":"10.1007/s42823-025-00935-1","DOIUrl":"10.1007/s42823-025-00935-1","url":null,"abstract":"<div><p>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.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 5","pages":"1833 - 1860"},"PeriodicalIF":5.8,"publicationDate":"2025-06-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230374","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}

引用次数: 0

Waterborne polyurethane toughened carbon nanotube paper with excellent Joule heating properties and strain-sensing potential 水性聚氨酯增韧碳纳米管纸具有优异的焦耳加热性能和应变传感潜力

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-17 DOI: 10.1007/s42823-025-00934-2

Ru Chen, Guangtai Zhao, Xinmiao Cao, Wenxuan Wang, Yunxiang Xiao, Simeng Tian, Jize Dong

{"title":"Waterborne polyurethane toughened carbon nanotube paper with excellent Joule heating properties and strain-sensing potential","authors":"Ru Chen, Guangtai Zhao, Xinmiao Cao, Wenxuan Wang, Yunxiang Xiao, Simeng Tian, Jize Dong","doi":"10.1007/s42823-025-00934-2","DOIUrl":"10.1007/s42823-025-00934-2","url":null,"abstract":"<div><p>Currently, carbon nanotubes (CNTs) paper (also called Buckypaper, BP) is highly promising for application in flexible electronic materials. However, the lack of flexibility and durability of BP greatly affects the comprehensive performance. Here, we propose a simple method for manufacturing a waterborne polyurethane (WPU) toughened carbon nanotube paper (WPU-BP) with excellent overall performance through vacuum filtration. In WPU-BP, as the content of WPU increased from 0 to 48.3%, the tensile strength increased from 8.08 to 16.25 MPa, and the elongation at break increased from 2.14 to 225.04%, while the conductivity decreased from 41.34 to 20.33 S/cm. The WPU-BP with the WPU content of 18.9% (CNP8) demonstrated the optimum strain sensing performance. The gauge factor of CNP8 can reach 8.57 with a response time of 145 ms. It can detect a wide range of body movements from large joint movements to slight breathing, and exhibits high stability, maintaining high stability even after 1000 cycles. In addition, CNP8 shows excellent Joule heating performance, it can reach 186.1 °C at 5 V, with heating and cooling times of only 16 and 18 s, respectively, as well as with good reproducibility. In a word, the as-prepared WPU-BP exhibits excellent both strain sensing performance and Joule heating effect, and holds significant potential for applications in heating devices and wearable sensors.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 5","pages":"2423 - 2434"},"PeriodicalIF":5.8,"publicationDate":"2025-06-17","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230191","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}

引用次数: 0

Bright white light emitting diodes based on sustainable graphene quantum dots derived from Moringa oleifera leaves as photo-converter layer 基于辣木叶中提取的可持续石墨烯量子点作为光转换器层的明亮白光发光二极管

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-13 DOI: 10.1007/s42823-025-00932-4

F. S. Abd El-kawy, S. Hammad, H. Talaat, G. Bacher, M. Ghali

{"title":"Bright white light emitting diodes based on sustainable graphene quantum dots derived from Moringa oleifera leaves as photo-converter layer","authors":"F. S. Abd El-kawy, S. Hammad, H. Talaat, G. Bacher, M. Ghali","doi":"10.1007/s42823-025-00932-4","DOIUrl":"10.1007/s42823-025-00932-4","url":null,"abstract":"<div><p>The avenue to synthesize eco-friendly and high-performing warm-white light emitting diodes (WLEDs) using quantum-dots for color conversion is challenging. Here, the graphene quantum dots (GQDs) are synthesized from <i>Moringa oleifera</i> leaves without the need of any organic solvents or reducing agents by a one-pot hydrothermal method and utilized for the design of efficient warm WLEDs. The photoluminescence of the obtained GQDs is found to be red-shifted as the excitation wavelength increases. This is ascribed to an excitation of multiple transitions due to various surface traps related to surface amino and oxygen functionalized groups as revealed from X-ray-photoelectron–spectroscopy and FTIR results. Three different concentrations of GQDs are embedded in polyvinyl-alcohol matrix acting as color-converters for the design of WLED devices. By increasing the GQDs concentration, the color correlated temperatures are tuned from 3804 to 2593 K and the luminous efficacy from 39.3 to 71.69 lm/W. Moreover, the chromaticity coordinates of the devices are shifted from (0.3825, 0.3665) to (0.4807, 0.4478). The brightness of the fabricated devices based on these green-GQDs are comparable with those of warm LEDs prepared from chemically synthesized graphene and carbon dots and can be suitable for indoor lighting applications. </p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 5","pages":"2395 - 2410"},"PeriodicalIF":5.8,"publicationDate":"2025-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42823-025-00932-4.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230442","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrochemical performance of microporous carbons derived from oak wood for electric double-layer capacitor 双层电电容器用橡木微孔炭的电化学性能

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-12 DOI: 10.1007/s42823-025-00931-5

Hyeon-Hye Kim, Ju-Hwan Kim, Jin-Soo Jeong, Hye-Min Lee, Kay-Hyeok An, Byung-Joo Kim

{"title":"Electrochemical performance of microporous carbons derived from oak wood for electric double-layer capacitor","authors":"Hyeon-Hye Kim, Ju-Hwan Kim, Jin-Soo Jeong, Hye-Min Lee, Kay-Hyeok An, Byung-Joo Kim","doi":"10.1007/s42823-025-00931-5","DOIUrl":"10.1007/s42823-025-00931-5","url":null,"abstract":"<div><p>Electric double-layer capacitors (EDLCs) have attracted significant interest as a promising energy storage solution because of their high-power density, exceptional charge/discharge cycle stability, and extended lifespan. Porous carbon is a key component of EDLCs given its outstanding chemical stability, high electrical conductivity, large specific surface area, and cost effectiveness. We fabricated porous carbon from oak wood as a raw material using an environment-friendly steam activation process (physical activation). Pretreatment (stabilization) was conducted using a mild acid (phosphoric acid) to achieve a high specific surface area and maintain structural stability. Oak wood-derived porous carbon (Oak-PC) produced with varying activation times following phosphate stabilization achieved high specific surface area (1050–1990 m<sup>2</sup>/g), pore volume (0.44–0.95 cm<sup>3</sup>/g), and carbonization yield (36%). Oak-PC retained ~ 90% of its performance at a high current density (10 A/g), demonstrating superior EDLC performance compared to that of commercial porous carbon. These results were attributed to the significant enhancement of the electrical properties of Oak-PCs, achieved by removing char through phosphate stabilization and strengthening bond stability. This study provides foundational data for developing sustainable energy storage technologies and enhancing the efficiency of next-generation energy storage systems by utilizing environment-friendly biomass materials such as oak wood.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 5","pages":"2381 - 2394"},"PeriodicalIF":5.8,"publicationDate":"2025-06-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230410","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}

引用次数: 0

Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells 吡咯富氮碳量子点作为质子交换膜燃料电池中稳定高效铂催化剂的锚定位点

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-09 DOI: 10.1007/s42823-025-00933-3

Jong Yoon Lee, Seung-chul Choi, Dae Soon Im, Mansu Kim, Han-Ik Joh

{"title":"Pyrrolic nitrogen-rich carbon quantum dots as anchoring sites for stable and efficient platinum catalysts in proton exchange membrane fuel cells","authors":"Jong Yoon Lee, Seung-chul Choi, Dae Soon Im, Mansu Kim, Han-Ik Joh","doi":"10.1007/s42823-025-00933-3","DOIUrl":"10.1007/s42823-025-00933-3","url":null,"abstract":"<div><p>Developing highly durable and active catalysts is essential for improving the performance and longevity of proton exchange membrane fuel cells (PEMFCs). In this study, we propose a novel strategy to enhance catalyst dispersion and stability by incorporating pyrrolic nitrogen-rich carbon (pNC) quantum dots into highly crystalline carbon supports. The introduction of pNC generates strong anchoring sites for Pt nanoparticles, facilitating uniform dispersion and minimizing aggregation, which are key factors in enhancing catalytic performance and durability. The synthesized Pt/CVC150 catalyst exhibited excellent oxygen reduction reaction activity, with a half-wave potential of 0.842 V and a limiting current density of 6.3 mA cm<sup>−2</sup>. Under accelerated stress test conditions, the catalyst retained 61.4% of its initial peak power density after prolonged cycling, indicating enhanced durability. Furthermore, single cell testing confirmed its improved electrochemical activity and stability of the Pt/CVC150 catalyst in a practical PEMFC operating environment. These findings suggest that the incorporation of heteroatom-doped carbon moieties onto carbon supports represents a promising strategy for the development of next-generation PEMFC catalysts with enhanced performance and longevity.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 5","pages":"2411 - 2421"},"PeriodicalIF":5.8,"publicationDate":"2025-06-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230225","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}

引用次数: 0

Carbon-based nanostructure drug delivery systems and their biologic applications – a review 碳基纳米结构给药系统及其生物学应用综述

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-08 DOI: 10.1007/s42823-025-00927-1

Hale Alvandi, Anahid Shafie, Fatemeh Najafi, Mahdi Sabzini, Mohammad Mashayekhi, Sahand Hedayati Omami, Mohammad Mahdi Eskandarisani, Shamim Dashti, Alireza Javanmard, Mohammadreza Tajik, Stefan Bräse, Ahmad Reza Farmani

{"title":"Carbon-based nanostructure drug delivery systems and their biologic applications – a review","authors":"Hale Alvandi, Anahid Shafie, Fatemeh Najafi, Mahdi Sabzini, Mohammad Mashayekhi, Sahand Hedayati Omami, Mohammad Mahdi Eskandarisani, Shamim Dashti, Alireza Javanmard, Mohammadreza Tajik, Stefan Bräse, Ahmad Reza Farmani","doi":"10.1007/s42823-025-00927-1","DOIUrl":"10.1007/s42823-025-00927-1","url":null,"abstract":"<div><p>Presently, the majority of cancer treatments are non-specific, leading to undesirable side effects from intense medications. This issue may be addressed through the revolutionary advancement of nanotechnology, which enables the control of materials at the nanoscale. By offering advantages such as customized drug delivery, minimized dose-associated side effects, and extended drug circulation times, nanotechnology has significantly impacted cancer therapy over recent decades. Due to their unique combination of superior optical, thermal, electrical, and mechanical properties, carbon-based nanoparticles are emerging as promising tools in cancer research. These nanoparticles also offer ease of modification and a large surface area, making them ideal for efficient drug delivery. These nanoplatforms can serve as carriers for multiple types of molecules, enabling targeted and controlled delivery of pharmaceuticals, nucleotides, and diagnostic agents. The synthesis techniques and functionalization approaches of carbon-based nanostructures, both covalently and noncovalently bound, will be explored in detail within this review. In addition, the properties of carbon nanostructures, their potential for delivering anticancer drugs and genetic material, as well as their antibacterial capabilities, will be analyzed. Lastly, the challenges associated with utilizing carbon nanostructures and future perspectives will be discussed.</p><h3>Graphical abstract</h3><div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 4","pages":"1529 - 1587"},"PeriodicalIF":5.8,"publicationDate":"2025-06-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145163161","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}

引用次数: 0

Development of a nitrogen-doped carbon nanotube nanogenerator for mechanical energy harvesting 用于机械能量收集的氮掺杂碳纳米管纳米发电机的研制

IF 5.8 3区材料科学

Carbon Letters Pub Date : 2025-06-04 DOI: 10.1007/s42823-025-00924-4

M. V. Il‵ina, O. I. Soboleva, M. R. Polyvianova, N. N. Rudyk, I. V. Pankov, D. N. Khomlenko, O. I. Il‵in

{"title":"Development of a nitrogen-doped carbon nanotube nanogenerator for mechanical energy harvesting","authors":"M. V. Il‵ina, O. I. Soboleva, M. R. Polyvianova, N. N. Rudyk, I. V. Pankov, D. N. Khomlenko, O. I. Il‵in","doi":"10.1007/s42823-025-00924-4","DOIUrl":"10.1007/s42823-025-00924-4","url":null,"abstract":"<div><p>This study presents, for the first time, a piezoelectric nanogenerators (PENG) model based on the nitrogen-doped carbon nanotubes (N-CNTs) array and demonstrates the ability of N-CNT to convert external oscillations into electrical energy. Molybdenum was proved to be a preferred material for the upper electrode due to its high corrosion resistance and the formation of ohmic contact at the interface with N-CNT. It was shown the operation of the PENG model in constant and pulsed modes. It was found that the output voltage of the PENG model increased linearly from 3 to 60 mV with an increase in the amplitude of the external mechanical influence from 3.5 to 95 μm and decreased from 54 to 26 mV with an increase in the frequency of external influence from 15 to 120 Hz due to an excess of the natural resonant frequency of the nanotubes. The experiments demonstrated that the power density of the N-CNT-based PENG model reached 12.63 μV/cm<sup>2</sup>. It was exhibited that the PENG model can be used not only as a nanogenerator for autonomous power supply of wearable electronic devices, but also as a highly sensitive deformation sensor. In addition, the clamping force of the upper electrode determines the frequency range of the PENG model. The obtained results open wide opportunities for practical application of vertically aligned N-CNTs for autonomous power supply of wearable electronic devices.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"35 5","pages":"2307 - 2317"},"PeriodicalIF":5.8,"publicationDate":"2025-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"145230425","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}

引用次数: 0