Carbon Trends最新文献_第2页

A core-shell model for oxidation-driven evolution of porous carbon nanoparticles

IF 3.1

Carbon Trends Pub Date : 2025-04-01 DOI: 10.1016/j.cartre.2025.100503

A. Raiolo, C. Stockinger, U. Nieken

{"title":"A core-shell model for oxidation-driven evolution of porous carbon nanoparticles","authors":"A. Raiolo, C. Stockinger, U. Nieken","doi":"10.1016/j.cartre.2025.100503","DOIUrl":"10.1016/j.cartre.2025.100503","url":null,"abstract":"<div><div>The gasification of soot and carbon black nanoparticles is a fluid-solid reaction in which the solid phase undergoes structural changes. As the particles are permeable to the gas phase, oxidation takes place at the outer surface as well as in the interior. During oxidation progress, the internal porosity increases, resulting in an extreme increase in surface area. Experimental findings have recently been described by a model that treats oxidation by random removal of the solid phase. While these statistical models are computationally expensive and rely on tessellation of the solid, we propose a simple analytical expression to describe the gasification on the nanoparticle scale in the kinetically controlled regime. This novel model accounts for simultaneous internal and external oxidation and considers the heterogeneity of the particle, which consists of a core and a shell region that differ in their initial internal porosity. The model can explain the experimental observations found in literature, which report a sharp increase in specific surface area with subsequent flattening as oxidation progresses. Also, the experimental observation that the absolute surface undergoes a maximum can be well reproduced. An extension of our analytical model allows to account for the shift between the maximum reaction rate and the maximum surface area, often observed in experiments.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100503"},"PeriodicalIF":3.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786015","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

Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement

IF 3.1

Carbon Trends Pub Date : 2025-04-01 DOI: 10.1016/j.cartre.2025.100499

Sanjeev Gautam , Jaswinder Singh Sidhu , Monika Verma

{"title":"Influence of reduction duration on reduced graphene oxide for supercapacitor energy storage enhancement","authors":"Sanjeev Gautam , Jaswinder Singh Sidhu , Monika Verma","doi":"10.1016/j.cartre.2025.100499","DOIUrl":"10.1016/j.cartre.2025.100499","url":null,"abstract":"<div><div>Reduced graphene oxide (rGO) has attracted significant attention in carbon-based energy storage devices due to its promising electrochemical properties. The performance of reduced graphene oxide (rGO) in supercapacitor energy storage devices is remarkably influenced by the duration of its reduction process. In this study, graphene oxide (GO) synthesized via a modified Hummer’s method and systematically reduced over varying durations to investigate the impact of reduction time on the structural and electrochemical properties of rGO. The reduction process was monitored using <em>ex-situ</em> X-ray diffraction (XRD), Raman spectroscopy, and High-resolution Transmission Electron Microscopy (HR-TEM) to gain detailed insights into the evolution of rGO over time. Structural analyses employing XRD, Fourier-transform infrared spectroscopy (FTIR), and Raman spectroscopy revealed that prolonged reduction led to increase crystallite size, decrease interlayer spacing, and reduced defect densities. Cyclic voltammetry measurements demonstrated a direct correlation between reduction duration and specific capacitance, with longer reduction times enhancing the energy storage performance of rGO. These findings, including Electrochemical Impedance Spectroscopy (EIS), underscore the critical influence of reduction duration on optimizing rGO for supercapacitor applications.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100499"},"PeriodicalIF":3.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143799778","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

Three-dimensional reduced graphene oxide support from spheric CaCO3 as sacrificial template applied to in-situ growth of HKUST-1 metal-organic framework

IF 3.1

Carbon Trends Pub Date : 2025-04-01 DOI: 10.1016/j.cartre.2025.100504

Hassani Lizbeth Camargo-Carmona , Ferdinando Tristan , David Meneses-Rodríguez , Gladis Judith Labrada-Delgado , Sofía Magdalena Vega-Díaz

{"title":"Three-dimensional reduced graphene oxide support from spheric CaCO3 as sacrificial template applied to in-situ growth of HKUST-1 metal-organic framework","authors":"Hassani Lizbeth Camargo-Carmona , Ferdinando Tristan , David Meneses-Rodríguez , Gladis Judith Labrada-Delgado , Sofía Magdalena Vega-Díaz","doi":"10.1016/j.cartre.2025.100504","DOIUrl":"10.1016/j.cartre.2025.100504","url":null,"abstract":"<div><div>Three-dimensional (3D) composite materials have been recently investigated due to their excellent intrinsic properties and characteristics such as a self-sustained structure, porosity, and high specific surface area. 3D reduced graphene oxide (rGO) materials can be used to improve some properties of the other materials or compounds. An attractive approach is to use rGO aerogels as support of metal-organic frameworks (MOFs), leading to improvement in electrical, mechanical, adsorptive, and thermal properties. This paper presents a 3D structure made of a composite of rGO and HKUST-1 MOF where the pore morphology of the support was controlled by using spherical calcium carbonate as a sacrificial template covered with GO through a layer-by-layer method. After a thermal treatment and removal of the sacrificial template, a rGO porous monolith was obtained. This rGO monolith was used as a support in a solvothermal process to grow the HKUST-1 framework in situ within its pores and on its surface. The same procedure was repeated at three different synthesis times. The obtained materials were characterized by several techniques: infrared and Raman spectroscopies, scanning electron microscopy (SEM), X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and physisorption analysis using N<sub>2</sub>. The results confirmed the presence of HKUST-1 within the 3D rGO support. The HKUST-1 crystals in these supports maintained the characteristic octahedral shape of the MOF on the monolith's surface. However, it is important to note that the growth of the HKUST-1 was affected inside the three-dimensional porous structure.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100504"},"PeriodicalIF":3.1,"publicationDate":"2025-04-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143786014","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

Improved CO2 adsorption and desorption using chemically derived activated carbon from corn cob hard shell

IF 3.1

Carbon Trends Pub Date : 2025-03-23 DOI: 10.1016/j.cartre.2025.100495

Mirana Tahsin , M. Shahinuzzaman , Taslima Akter , Rahim Abdur , Muhammad Shahriar Bashar , Md. Rafiul Kadir , Sirajul Hoque , Mohammad Shah Jamal , Mosharof Hossain

{"title":"Improved CO2 adsorption and desorption using chemically derived activated carbon from corn cob hard shell","authors":"Mirana Tahsin , M. Shahinuzzaman , Taslima Akter , Rahim Abdur , Muhammad Shahriar Bashar , Md. Rafiul Kadir , Sirajul Hoque , Mohammad Shah Jamal , Mosharof Hossain","doi":"10.1016/j.cartre.2025.100495","DOIUrl":"10.1016/j.cartre.2025.100495","url":null,"abstract":"<div><div>The task of regulating global CO<sub>2</sub> emission control has paved the way for improving solid sorbents such as activated carbons. Adsorption depends on the preparation process and the quality of the initial material used for it. This study mainly concentrates on producing activated carbon from corn cob biomass, which is economical and widely available. The biomass was subjected to activation using KOH at a ratio of 1:1 at a temperature of 850 °C. The Modified Activated Carbon (MAC) samples, namely MAC-1, were produced by treating biochar with a 1:1 ratio of the KOH solution. In contrast, the MAC-2 method directly added solid KOH pellets to biochar in a 1:1 activation ratio. The SEM analysis revealed the porous structure of activated carbon, while the FTIR analysis confirmed the presence of the functional groups. The adsorption tests were conducted for 5, 10, and 20 min, with the highest adsorption observed at 20 min. Desorption was carried out at 105 °C for an hour, showing a gradual increase up to 20 min, reaching 1.227 mmol/g (0.054 g/g). The MAC-2 sample exhibited the maximum CO<sub>2</sub> adsorption capacity measuring 1.523 mmol/g (0.067 g/g), highlighting the promising potential of activated carbon derived from corn cob.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100495"},"PeriodicalIF":3.1,"publicationDate":"2025-03-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714544","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

Synthesis of multicolored photoluminescent carbon nanodots and applications to secured tags in anti-counterfeiting, traceability and digital passport product

IF 3.1

Carbon Trends Pub Date : 2025-03-19 DOI: 10.1016/j.cartre.2025.100497

Aïssatou Coumba Sow , Etienne Palleau , Isabelle Fabre–Francke , Nicolas Ratel-Ramond , Cécile Marcelot , Laurence Ressier

{"title":"Synthesis of multicolored photoluminescent carbon nanodots and applications to secured tags in anti-counterfeiting, traceability and digital passport product","authors":"Aïssatou Coumba Sow , Etienne Palleau , Isabelle Fabre–Francke , Nicolas Ratel-Ramond , Cécile Marcelot , Laurence Ressier","doi":"10.1016/j.cartre.2025.100497","DOIUrl":"10.1016/j.cartre.2025.100497","url":null,"abstract":"<div><div>With the objective of achieving better product traceability, generating digital passport product and combating counterfeiting, we demonstrate a fully bio-sourced approach featuring photoluminescent carbon nanodot-based tags. A straightforward synthesis procedure is first developed, whereby multicolored photoluminescent colloidal carbon nanodots are obtained from coffee grounds through a process of carbonization and solid-liquid extraction. Carbon-based nanoparticles are indeed renowned for their minimal cytotoxicity, photochemical stability, environmental durability and ease of surface functionalization. A versatile tagging process is then proposed, whereby a drop of synthesized carbon nanodot-based bio-resist is directly deposited onto the surface to be marked. The surface is then structured into the shape of patterns of interest by means of a technique derive from UV microprinting. In order to enhance security and tracking capabilities, the obtained marking patterns can incorporate supplementary coded information, such as alphanumeric codes, QR codes, barcodes, and so forth. The mechanical and optical robustness of the obtained bio-sourced secured tags is demonstrated through various concrete use cases, which illustrate their suitability for use as both graphic identification elements and serializable data elements, particularly in the aerospace sector.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100497"},"PeriodicalIF":3.1,"publicationDate":"2025-03-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143714545","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

3D printing of models of carbon nanotubes and related nanomaterials

IF 3.1

Carbon Trends Pub Date : 2025-03-18 DOI: 10.1016/j.cartre.2025.100498

Juliana Gretz , Sebastian Kruss

{"title":"3D printing of models of carbon nanotubes and related nanomaterials","authors":"Juliana Gretz , Sebastian Kruss","doi":"10.1016/j.cartre.2025.100498","DOIUrl":"10.1016/j.cartre.2025.100498","url":null,"abstract":"<div><div>The structure of materials determines their properties. Visualizing molecular or nanoscale structures is crucial to understanding this relationship. Carbon nanomaterials are a particularly good example. Single walled carbon nanotubes (SWCNTs) have different structures (chiralities), which translate into distinct optical colors and fluorescence properties. Nevertheless, it is difficult to comprehend why materials made only from carbon atoms have these different properties. Haptic materials can play a significant role in engaging newcomers, for public outreach as well as visualizing and explaining basic concepts of chemistry and physics for more advanced scientists. This article provides a beginner-friendly workflow to create 3D models of SWCNTs, graphene (nanoribbons/nanosheets) or modifications from scratch.</div><div>All used programs for chemical modeling are free to use, and no prior experience is required to follow the instructions. Exemplarily, a model of a single walled carbon nanotube (SWCNT) is created in Avogadro. This file is then imported into Blender to customize the layout. In a next step the generated files are processed (sliced) to translate it into the language of a 3D printer. This article provides a tutorial for 3D print SWCNTs and related materials, introduces the computational tools that are necessary, and discusses teaching examples.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100498"},"PeriodicalIF":3.1,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143697360","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

Facile synthesis of MnSe@MoSe2 grown on MWCNT for high-performance supercapacitors 在 MWCNT 上生长的 MnSe@MoSe2 的简易合成，用于高性能超级电容器

IF 3.1

Carbon Trends Pub Date : 2025-03-18 DOI: 10.1016/j.cartre.2025.100496

Hossein Shahidi Shahidani , Mohammad Bagher Askari , Majid Seifi

{"title":"Facile synthesis of MnSe@MoSe2 grown on MWCNT for high-performance supercapacitors","authors":"Hossein Shahidi Shahidani , Mohammad Bagher Askari , Majid Seifi","doi":"10.1016/j.cartre.2025.100496","DOIUrl":"10.1016/j.cartre.2025.100496","url":null,"abstract":"<div><div>Transition metal selenides (TMSs) are recognized for their excellent electrical and mechanical characteristics, as well as their availability and low cost, which have made them a focal point in materials research. Herein, we explore how multi-walled carbon nanotubes influence the electrochemical characteristics of manganese selenide (MnSe) and molybdenum diselenide (MoSe<sub>2</sub>) compounds. Specifically, MnSe@MoSe<sub>2</sub> electrode was synthesized on MWCNTs using a hydrothermal technique, and after synthesis, the samples were studied by various analytical techniques. Galvanostatic charge-discharge measurements, electrochemical impedance spectroscopy, and cyclic voltammetry demonstrated the synthesized composites’ strong potential for supercapacitor applications. The specific capacitance of MnSe@MoSe<sub>2</sub>/MWCNT was calculated to be 1033 F/g, maintaining 99 % stability over 2000 cycles at a current density of 5 A/g. Also, the dense morphology of nanosheets showed that the MnSe@MoSe<sub>2</sub>/MWCNT composite has more electrochemical active sites to absorb more electrolyte ions, facilitating reduced internal resistance, and improved ion transport efficiency. Therefore, these characteristics suggest that the material is a strong candidate for systems with energy storage electrodes.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"20 ","pages":"Article 100496"},"PeriodicalIF":3.1,"publicationDate":"2025-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143833625","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Synthesis of zirconium carbide via sol-gel method as a precursor for micro- and mesoporous carbide-derived carbon materials

IF 3.1

Carbon Trends Pub Date : 2025-03-13 DOI: 10.1016/j.cartre.2025.100494

Maarja Paalo , Selin Su Yegit , Lilian Moumaneix , Tanja Kallio , Alar Jänes

{"title":"Synthesis of zirconium carbide via sol-gel method as a precursor for micro- and mesoporous carbide-derived carbon materials","authors":"Maarja Paalo , Selin Su Yegit , Lilian Moumaneix , Tanja Kallio , Alar Jänes","doi":"10.1016/j.cartre.2025.100494","DOIUrl":"10.1016/j.cartre.2025.100494","url":null,"abstract":"<div><div>The sol-gel method was used to synthesize a carbide precursor, which was then chlorinated to obtain micro- and mesoporous carbon material. Zirconium alkoxide was used as the starting material in the sol-gel synthesis process. The final carbon material was produced by chlorinating the sol-gel synthesized carbide at three different chlorination temperatures, 700 °C, 800 °C and 900 °C. Characterization of the synthesized carbide precursor and the final carbon materials revealed that all materials were porous. Sorption measurements were used to calculate specific surface areas using non-local density functional theory (NLDFT). The surface area of the sol-gel synthesized carbide reached up to 65 m<sup>2</sup> g<sup>−1</sup>, while the carbon materials achieved surface areas up to 1570 m<sup>2</sup> g<sup>−1</sup>. For comparison, carbide-derived carbon materials were also synthesized from commercial zirconium carbide. The commercial zirconium carbide has very low porosity, resulting in a final carbon material that was primarily microporous, with a specific NLDFT surface area similar to that of sol-gel synthesized carbide-derived carbon material. However, the key difference is that carbon materials derived from commercial zirconium carbide contained only micropores, whereas the sol-gel synthesized carbide-derived carbon also have mesoporous areas. This mesoporosity is crucial for applications such as rapid ion transport in supercapacitor electrodes.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100494"},"PeriodicalIF":3.1,"publicationDate":"2025-03-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143641911","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

Magnetic coupling of iron-based ferromagnetic nanoclusters encapsulated inside double-wall carbon nanotubes

IF 3.1

Carbon Trends Pub Date : 2025-03-10 DOI: 10.1016/j.cartre.2025.100483

Wilson Nieto , Johnny Chimborazo , Hidetsugu Shiozawa , Thomas Pichler , Paola Ayala , Dario Niebieskikwiat

{"title":"Magnetic coupling of iron-based ferromagnetic nanoclusters encapsulated inside double-wall carbon nanotubes","authors":"Wilson Nieto , Johnny Chimborazo , Hidetsugu Shiozawa , Thomas Pichler , Paola Ayala , Dario Niebieskikwiat","doi":"10.1016/j.cartre.2025.100483","DOIUrl":"10.1016/j.cartre.2025.100483","url":null,"abstract":"<div><div>Understanding the magnetic properties of hybrids of carbon nanotubes is an intriguing matter that offers a vastly unexplored playground for fundamental research and promising applications. The magnetic properties of bundles of double-wall carbon nanotubes encapsulating cementite ferromagnetic nanoclusters (of <span><math><mo>∼</mo></math></span> 3–4 nm in length) are here studied. VSM magnetometry shows clear evidence of interparticle magnetic interactions and a large interface exchange coupling of the nanoclusters with the carbon matrix, characterized by a surface anisotropy field <span><math><mrow><msub><mrow><mi>H</mi></mrow><mrow><mi>K</mi></mrow></msub><mo>∼</mo><mn>67</mn></mrow></math></span> kOe. Using a well-known measurement protocol, a magnetic activation volume for magnetization reversal was estimated as <span><math><mrow><mo>∼</mo><mn>420</mn><mspace></mspace><msup><mrow><mi>nm</mi></mrow><mrow><mn>3</mn></mrow></msup></mrow></math></span>. This large volume involves around 270 cementite nanoparticles mutually coupled through the conduction electrons of the nanotubes, which provide the ground for a large magnetic correlation length, thus favoring their possible application in spintronic devices.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100483"},"PeriodicalIF":3.1,"publicationDate":"2025-03-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143609297","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

Structural and electrochemical characterization of diatomite with lignin, glucose, activated carbon and magnetic nanoparticles

IF 3.1

Carbon Trends Pub Date : 2025-03-06 DOI: 10.1016/j.cartre.2025.100492

Maria Silva , Sarah Briceño , Karla Vizuete , Alexis Debut , Gema González

引用次数: 0