Carbon Trends最新文献

英文中文

Mild opening procedure to obtain open-ended yet long single-wall carbon nanotubes for subsequent filling

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-01-01 DOI: 10.1016/j.cartre.2024.100439

Aina Fitó-Parera , Miguel Ángel López Carrillo , Marcel Erwan Tonye , Maksiem Erkens , Pegie Cool , Wim Wenseleers , Salomé Forel , Sofie Cambré

Encapsulation of molecules inside the hollow core of single-wall carbon nanotubes (SWCNTs) has become an interesting research field to create new functionalities. To fill the SWCNTs, as-synthesized SWCNTs first need to be opened. Typical opening procedures however include harsh (mechanical or chemical) steps, such as strong acid oxidation, grinding, and sonication, which cut the SWCNTs into much shorter segments. While SWCNTs can be synthesized with lengths up to several micrometers, opened SWCNTs typically show maximum lengths of only a few hundred nanometers, limiting their use for filling with long, one-dimensional arrays of molecules or studying the transport of molecules through their hollow core. Here, we present a mild opening procedure to achieve open, yet long SWCNTs. By comparing different processing steps in their ability to open SWCNTs without significantly reducing the SWCNT length, we present a simple three-step procedure including an air oxidation, a mild acidic treatment, and a high-temperature vacuum annealing, resulting in nearly complete opening of all SWCNTs in a sample, independent of the SWCNT chiral structure and diameter. The procedure has been applied to different SWCNT starting batches to confirm its general applicability. While the opening of SWCNTs is characterized by optical spectroscopy after water filling, statistical SWCNT length distributions are obtained through atomic force microscopy and hyperspectral photoluminescence imaging of SWCNTs. Our results demonstrate that mechanical steps, such as grinding and sonication, can be strictly avoided to obtain a significant fraction of opened SWCNTs with longer lengths.

{"title":"Mild opening procedure to obtain open-ended yet long single-wall carbon nanotubes for subsequent filling","authors":"Aina Fitó-Parera , Miguel Ángel López Carrillo , Marcel Erwan Tonye , Maksiem Erkens , Pegie Cool , Wim Wenseleers , Salomé Forel , Sofie Cambré","doi":"10.1016/j.cartre.2024.100439","DOIUrl":"10.1016/j.cartre.2024.100439","url":null,"abstract":"<div><div>Encapsulation of molecules inside the hollow core of single-wall carbon nanotubes (SWCNTs) has become an interesting research field to create new functionalities. To fill the SWCNTs, as-synthesized SWCNTs first need to be opened. Typical opening procedures however include harsh (mechanical or chemical) steps, such as strong acid oxidation, grinding, and sonication, which cut the SWCNTs into much shorter segments. While SWCNTs can be synthesized with lengths up to several micrometers, opened SWCNTs typically show maximum lengths of only a few hundred nanometers, limiting their use for filling with long, one-dimensional arrays of molecules or studying the transport of molecules through their hollow core. Here, we present a mild opening procedure to achieve open, yet long SWCNTs. By comparing different processing steps in their ability to open SWCNTs without significantly reducing the SWCNT length, we present a simple three-step procedure including an air oxidation, a mild acidic treatment, and a high-temperature vacuum annealing, resulting in nearly complete opening of all SWCNTs in a sample, independent of the SWCNT chiral structure and diameter. The procedure has been applied to different SWCNT starting batches to confirm its general applicability. While the opening of SWCNTs is characterized by optical spectroscopy after water filling, statistical SWCNT length distributions are obtained through atomic force microscopy and hyperspectral photoluminescence imaging of SWCNTs. Our results demonstrate that mechanical steps, such as grinding and sonication, can be strictly avoided to obtain a significant fraction of opened SWCNTs with longer lengths.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"18 ","pages":"Article 100439"},"PeriodicalIF":3.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160303","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Color change mechanism and application of oxidized carbon dots/I2O4 composite (OCDs/I2O4) in alcoholic beverages

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-01-01 DOI: 10.1016/j.cartre.2024.100440

Ming-yu Shi, Ao Li, Tian-hao Ji, Da-jian Jv, Zhe-mi Xu

Currently, ethanol detection in alcoholic beverages typically relies on complicated and costly approaches, including gas chromatography, liquid chromatography, and mass spectrometry, etc. Herein, we developed a non-toxicity, practical, low-cost and portable visual indicator for ethanol detection based on OCDs/I₂O₄ nanopowders. By color change, the OCDs/I₂O₄ can visually indicate ethanol concentration ranging from 14 % vol to 56 % vol and the detection limit can be further extended to 2 % vol with a UV-visible spectrum. The OCDs/I₂O₄ indicator shows good stability and long-term endurance for at least 18 months, and it can be used under different temperatures (at least from 3 °C to 40 °C) and humidity (at least from 10 % to 90 %). A possible mechanism for the color change has been proposed based on the covalent-link hydrogen bonding change between OCDs and I₂O₄. The proposed OCDs/I₂O₄ composite offers a convenient and practical solution for ethanol monitoring in various alcoholic beverages.

{"title":"Color change mechanism and application of oxidized carbon dots/I2O4 composite (OCDs/I2O4) in alcoholic beverages","authors":"Ming-yu Shi, Ao Li, Tian-hao Ji, Da-jian Jv, Zhe-mi Xu","doi":"10.1016/j.cartre.2024.100440","DOIUrl":"10.1016/j.cartre.2024.100440","url":null,"abstract":"<div><div>Currently, ethanol detection in alcoholic beverages typically relies on complicated and costly approaches, including gas chromatography, liquid chromatography, and mass spectrometry, etc. Herein, we developed a non-toxicity, practical, low-cost and portable visual indicator for ethanol detection based on OCDs/I<sub>2</sub>O<sub>4</sub> nanopowders. By color change, the OCDs/I<sub>2</sub>O<sub>4</sub> can visually indicate ethanol concentration ranging from 14 % vol to 56 % vol and the detection limit can be further extended to 2 % vol with a UV-visible spectrum. The OCDs/I<sub>2</sub>O<sub>4</sub> indicator shows good stability and long-term endurance for at least 18 months, and it can be used under different temperatures (at least from 3 °C to 40 °C) and humidity (at least from 10 % to 90 %). A possible mechanism for the color change has been proposed based on the covalent-link hydrogen bonding change between OCDs and I<sub>2</sub>O<sub>4</sub>. The proposed OCDs/I<sub>2</sub>O<sub>4</sub> composite offers a convenient and practical solution for ethanol monitoring in various alcoholic beverages.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"18 ","pages":"Article 100440"},"PeriodicalIF":3.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160299","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

In-situ electrochemical fabrication of holey graphene oxide and oxo-functionalized graphene for electrochemical sensing

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-01-01 DOI: 10.1016/j.cartre.2024.100447

Gang Li , Ming Qin , Qiang Zhang , Baiqing Yuan , Lanxin Xue , Shuning Zhang , Jingfei Yan , Chunying Xu

The in-situ electrochemical generation method streamlines the synthesis of active materials directly onto the electrode surface, which enhances the electrical connection and minimizes interface resistance. This approach not only simplifies the modification process but also significantly enhances signal stability and reproducibility in electrochemical sensing. Here, holey graphene oxide and oxo-functionalized graphene were in-situ generated by an electrochemical method in a green and mild solution. The active interfaces were explored for the electrochemical sensing of dopamine, ascorbic acid and uric acid, focusing on electroactivity, antifouling, selectivity, and background noise. Findings reveal the crucial role of oxo-functional groups and defects at the interfaces in determining the sensor's performance, highlighting a trade-off between high sensitivity and antifouling capability/selectivity.

引用次数: 0

Effect of fullerene ratio as an organic additive on the hydrogen storage of Se nanoparticles

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-01-01 DOI: 10.1016/j.cartre.2024.100437

Ban D. Salih , Nora A. Salih , Maysoon A. Hamad , Mustafa A. Alheety , Ahmed R. Mahmood

Fullerene was used as a synthon to produce fullerene-decorated selenium (C₆₀-Se) via an in-situ ultrasound-assisted method in the presence of ascorbic acid as a reducing agent. The resulting nanocomposite was characterized by XRD, SEM, and TEM techniques. The characterization techniques prove the formation of ball-like structures with irregular structures due to C₆₀ and Se, respectively. Furthermore, XRD proves the presence of both Se and C₆₀ peaks, proving the suggested structure. A study was conducted to change the ratio of fullerene to selenium in order to determine the best ratio that provides the highest hydrogen storage. The study proved that the ratio containing the highest value of selenium showed the highest ability to store hydrogen, which reached 4.1 wt% at 55 bar and a temperature of 77 K. At the equilibrium pressure (55 bar), enthalpy and entropy were calculated as 0.12873 KJ/mol H₂ and 0.690246 J/mol H₂. K., respectively, proving the physical adsorption.

引用次数: 0

Evaluation of soot particles from different-sized rapeseed oil flames: Scientific focus on a traditional Japanese craft, Nara sumi

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-01-01 DOI: 10.1016/j.cartre.2024.100433

Akinori Ren , Shoko Kume , Manabu Fujiwara , Sumiaki Nakano

Nara sumi is a traditional Japanese craft, the skills and wisdom of which have been handed down through generations by artisans. Soot is a principal material determining sumi ink quality. Hand-made soot from rapeseed oil (lampblack) is still used in traditional Nara sumi instead of mass-produced carbon black. However, currently only one manufacturer continues to produce lampblack, and the artisan's production rules of thumb have not been scientifically studied. This study aims to clarify the effect of flame size variation on soot particle size, the most important rule of thumb in Nara sumi production. High-quality soot purportedly has a smaller particle size and can be generated from a smaller flame. We used three wick sizes to generate different sized flames and measured the particle size distribution of generated soot. The resulting soot particle size was found to increase as the flame increased. To additionally identify the flame area contributing to soot formation, a 2D analysis was conducted on the morphology and chemical state of soot collected from various heights within a rapeseed oil flame. The results show that soot formation progress is limited to the innermost zone of the flame, and only surface oxidation occurs in the middle zone and beyond. Soot transfer from the innermost to the middle zone was considered to be important in soot formation, based on both the morphology and chemical state changing rapidly and greatly at their boundary. These findings can help to preserve the knowledge for the traditional craft and Japanese cultural heritage.

{"title":"Evaluation of soot particles from different-sized rapeseed oil flames: Scientific focus on a traditional Japanese craft, Nara sumi","authors":"Akinori Ren , Shoko Kume , Manabu Fujiwara , Sumiaki Nakano","doi":"10.1016/j.cartre.2024.100433","DOIUrl":"10.1016/j.cartre.2024.100433","url":null,"abstract":"<div><div>Nara sumi is a traditional Japanese craft, the skills and wisdom of which have been handed down through generations by artisans. Soot is a principal material determining sumi ink quality. Hand-made soot from rapeseed oil (lampblack) is still used in traditional Nara sumi instead of mass-produced carbon black. However, currently only one manufacturer continues to produce lampblack, and the artisan's production rules of thumb have not been scientifically studied. This study aims to clarify the effect of flame size variation on soot particle size, the most important rule of thumb in Nara sumi production. High-quality soot purportedly has a smaller particle size and can be generated from a smaller flame. We used three wick sizes to generate different sized flames and measured the particle size distribution of generated soot. The resulting soot particle size was found to increase as the flame increased. To additionally identify the flame area contributing to soot formation, a 2D analysis was conducted on the morphology and chemical state of soot collected from various heights within a rapeseed oil flame. The results show that soot formation progress is limited to the innermost zone of the flame, and only surface oxidation occurs in the middle zone and beyond. Soot transfer from the innermost to the middle zone was considered to be important in soot formation, based on both the morphology and chemical state changing rapidly and greatly at their boundary. These findings can help to preserve the knowledge for the traditional craft and Japanese cultural heritage.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"18 ","pages":"Article 100433"},"PeriodicalIF":3.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159058","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Calcined Co-chelating, imine-crosslinking chitosan as the ORR catalyst of an anion exchange membrane fuel cell

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-01-01 DOI: 10.1016/j.cartre.2024.100444

Yen-Zen Wang , Ko-Shan Ho , Yu-Chang Huang , Yu-Wei Cheng , Chia-Long Miao , Pei-Ying Yeh

Cobalt-chelating imine-crosslinked chitosan (Co-ICCA) is synthesized via Schiff base condensation of terephthalaldehyde and chitosan in the presence of cobalt chloride. Co-ICCA transforms into Co, N-co-doped carbon cathode catalysts (Co-N-Cs) upon calcination. The successful synthesis is confirmed using Fourier Transform Infrared Spectroscopy. The porous morphologies of the calcined Co-ICCA are characterized by transmission electron microscopy, high-resolution transmission electron microscopy, and field-emission scanning electron microscopy. The Co-N-Cs exhibit a high specific surface area (433 m²/g) and porosity, as analyzed by a BET analyzer. X-ray diffraction patterns reveal sharp graphite diffraction peaks and feature peaks of Co-crystal with an FCC lattice when the calcination temperature exceeds 800 °C, indicating high crystallinity.

Meanwhile, Raman spectra show a higher G-band intensity compared to the D-band. The performance of Co-N-Cs as cathode catalysts, particularly in the oxygen reduction reaction, is evaluated through current-voltage and linear sweep voltammetry curves and compared to commercial Pt/C catalysts. Single-cell using the Co-N-C catalyst as the cathode reaches a high maximum power density of 221 mW cm^-2, close to the 285 mW cm^-² achieved with Pt/C as the cathode catalyst.

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引用次数: 0

Enhanced selectivity of carbon quantum dots for metal ion detection through surface modification by heteroatom doping: A study on optical properties and theoretical approach

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-01-01 DOI: 10.1016/j.cartre.2024.100445

María Belén Cánchig , Floralba López , Zaillmar Morales-Navarro , Alexis Debut , Karla Vizuete , Thibault Terencio , Manuel Caetano , Juan Pablo Saucedo-Vázquez

Water contamination by toxic metal ions has become a significant issue, requiring the development of effective ion detection methods. Traditional analytical techniques often involve toxic elements or complex devices. Carbon quantum dots (CQDs) have emerged as a promising alternative for optic ion detection due to their unique properties and compatibility with living organisms. This study focuses on synthesizing and functionalizing CQDs with various heteroatoms (N, S) to enhance their optical properties and ion selectivity. CQDs were synthesized using citric acid as the carbon source and modified with l-cysteine, ethylenediamine, and diethylenetriamine. The structural and optical properties of the CQDs were determined using several techniques, including FT-IR, TEM, UV–Vis, and Fluorescence Spectroscopy. The results indicate that doping with heteroatoms significantly alters the absorption and emission properties of CQDs. Particularly, nitrogen-doped CQDs (NCQDs) exhibited the highest absorption and emission intensities, making them ideal for sensor applications. The study also demonstrated that functionalization with sulfur could modulate emission frequencies, enhancing the detection capabilities for specific ions. Fluorescence quenching studies revealed that NCQDs and S-CQDs have a high selectivity for Hg²⁺ ions, attributed both electrostatic and covalent interactions formed between the CQDs and Hg²⁺. Computational studies supported these findings, showing that the interaction with Hg²⁺ significantly affects the energy gap of the CQDs, enhancing their sensitivity. This research contributes to the field of environmental monitoring by providing a practical solution for the detection of free metal ions in water through the development of advanced CQD-based sensors.

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引用次数: 0

Enhancing specific capacitance and energy density in printed supercapacitors: The role of activated wood carbon and electrolyte dynamics

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-01-01 DOI: 10.1016/j.cartre.2024.100436

Hamed Pourkheirollah , Remuel Isaac M. Vitto , Aleksandrs Volperts , Steffen Thrane Vindt , Līga Grīnberga , Gints Kučinskis , Jari Keskinen , Matti Mäntysalo

This study investigates Activated Wood Carbon (AWC) as an electrode material for advancing printed supercapacitors (SCs). AWC, derived from biomass, offers a sustainable alternative to conventional activated carbons. The research highlights the interplay between AWC's structural properties and electrolyte compatibility, addressing challenges in energy storage technologies. Comprehensive analyses, including sorptometry, Raman spectroscopy, X-ray diffraction (XRD), and electrochemical assessments, reveal that AWC's graphitization and structural ordering significantly influence its performance.

Printed SCs fabricated with AWC demonstrate superior performance compared to those using benchmark Kuraray YP-80F activated carbon, achieving up to 93 % and 90 % higher specific capacitance and energy density at 1.0 V and 1.2 V, respectively. The enhanced performance is attributed to AWC's increased surface area and pore volume, which provide abundant ion storage sites and improve ion mobility. Furthermore, the porous structure of AWC facilitates better compatibility with K_xH_yPO₄ electrolytes compared to NaCl, with pseudocapacitive effects also contributing to the improved energy storage behavior.

This work underscores the potential of biomass-derived carbon materials in creating high-performance, sustainable SCs. Future efforts will focus on optimizing electrode and electrolyte configurations to further enhance device performance, supporting the transition toward renewable energy solutions.

{"title":"Enhancing specific capacitance and energy density in printed supercapacitors: The role of activated wood carbon and electrolyte dynamics","authors":"Hamed Pourkheirollah , Remuel Isaac M. Vitto , Aleksandrs Volperts , Steffen Thrane Vindt , Līga Grīnberga , Gints Kučinskis , Jari Keskinen , Matti Mäntysalo","doi":"10.1016/j.cartre.2024.100436","DOIUrl":"10.1016/j.cartre.2024.100436","url":null,"abstract":"<div><div>This study investigates Activated Wood Carbon (AWC) as an electrode material for advancing printed supercapacitors (SCs). AWC, derived from biomass, offers a sustainable alternative to conventional activated carbons. The research highlights the interplay between AWC's structural properties and electrolyte compatibility, addressing challenges in energy storage technologies. Comprehensive analyses, including sorptometry, Raman spectroscopy, X-ray diffraction (XRD), and electrochemical assessments, reveal that AWC's graphitization and structural ordering significantly influence its performance.</div><div>Printed SCs fabricated with AWC demonstrate superior performance compared to those using benchmark Kuraray YP-80F activated carbon, achieving up to 93 % and 90 % higher specific capacitance and energy density at 1.0 V and 1.2 V, respectively. The enhanced performance is attributed to AWC's increased surface area and pore volume, which provide abundant ion storage sites and improve ion mobility. Furthermore, the porous structure of AWC facilitates better compatibility with K<sub>x</sub>H<sub>y</sub>PO<sub>4</sub> electrolytes compared to NaCl, with pseudocapacitive effects also contributing to the improved energy storage behavior.</div><div>This work underscores the potential of biomass-derived carbon materials in creating high-performance, sustainable SCs. Future efforts will focus on optimizing electrode and electrolyte configurations to further enhance device performance, supporting the transition toward renewable energy solutions.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"18 ","pages":"Article 100436"},"PeriodicalIF":3.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143159060","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Evolution of carbon fiber properties during repetitive recycling via pyrolysis and partial oxidation

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2025-01-01 DOI: 10.1016/j.cartre.2024.100438

Marina Corvo Alguacil, Kentaro Umeki, Shujie You, Roberts Joffe

The potential of recycling carbon fiber reinforced polymers (CFRP) as a sustainable solution for waste management is yet to be fully understood. This study reports on the evolution of mechanical, and chemical properties of reclaimed carbon fibers when recycled multiple times via pyrolysis and partial oxidation. The performed work aims at filling the knowledge gap related to repetitive recycling when moving towards a circular flow of resources. A recycling process existing at industrial scale is used to ensure the relevance and usefulness of the results in the current industry scene. Two sets of three identical model composites are recycled using distinct recycling parameters, and their properties are characterized at the end of each recycling cycle. Results show that recycling can lead to an increase in stiffness but can have a negative impact on strength of recovered fibers. Mechanical behaviour shows recovered fibers suitable for secondary applications with medium performance requirements after two recycling cycles. The findings highlight the importance of understanding the material properties evolution during recycling processes. This research contributes to the development of sustainable waste management strategies and a more environmentally friendly future.

{"title":"Evolution of carbon fiber properties during repetitive recycling via pyrolysis and partial oxidation","authors":"Marina Corvo Alguacil, Kentaro Umeki, Shujie You, Roberts Joffe","doi":"10.1016/j.cartre.2024.100438","DOIUrl":"10.1016/j.cartre.2024.100438","url":null,"abstract":"<div><div>The potential of recycling carbon fiber reinforced polymers (CFRP) as a sustainable solution for waste management is yet to be fully understood. This study reports on the evolution of mechanical, and chemical properties of reclaimed carbon fibers when recycled multiple times via pyrolysis and partial oxidation. The performed work aims at filling the knowledge gap related to repetitive recycling when moving towards a circular flow of resources. A recycling process existing at industrial scale is used to ensure the relevance and usefulness of the results in the current industry scene. Two sets of three identical model composites are recycled using distinct recycling parameters, and their properties are characterized at the end of each recycling cycle. Results show that recycling can lead to an increase in stiffness but can have a negative impact on strength of recovered fibers. Mechanical behaviour shows recovered fibers suitable for secondary applications with medium performance requirements after two recycling cycles. The findings highlight the importance of understanding the material properties evolution during recycling processes. This research contributes to the development of sustainable waste management strategies and a more environmentally friendly future.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"18 ","pages":"Article 100438"},"PeriodicalIF":3.1,"publicationDate":"2025-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143160302","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Vertically aligned carbon nanotubes on aluminum foils from biosourced precursors: Application to energy storage

IF 3.1 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

Carbon Trends

Pub Date : 2024-12-21 DOI: 10.1016/j.cartre.2024.100450

Corentin Chatelet , Ugo Forestier-Colleoni , Philippe Banet , Jérémie Descarpentries , Thomas Goislard de Monsabert , Fabien Nassoy , Cécile Reynaud , Mathieu Pinault

Vertically aligned carbon nanotubes (VACNTs) are among the nanomaterials recognized as efficient for many applications, such as thermal management or energy storage. Since they are mainly produced from hydrocarbon precursors, one of the issue is to reduce the carbon footprint of their synthesis by using bio-sourced precursors. Herein, we use bio-based carbon precursors to effectively grow VACNTs on aluminum thin foils from a one-step catalytic chemical vapor deposition (CCVD) method. This process at moderate temperature and atmospheric pressure is cost-effective and produces good-quality VACNTs on a large scale. We show that we can replace C₂H₂ with bio-sourced carbon precursors, and also toluene, which acts as a solvent for ferrocene, with more eco-friendly solvents. We observe that the activation energy of the growth process depends significantly on the precursor. After a selection of compatible carbon precursors and a parametric study, a 100 µm high VACNT carpet was obtained on Al foils with ethylene and butanol as carbon precursors and ferrocene solvent respectively. The VACNT samples were directly tested as supercapacitor electrodes. The results show that the volumetric capacitances obtained with bio-based precursors match those obtained with acetylene as the carbon precursor.

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