Carbon Trends最新文献

{"title":"Advanced stress imaging in periodically strained, suspended, quasi-2D membranes: Manifestation of Fano resonance and phonon dynamics insights","authors":"Souvik Bhattacharjee ,&nbsp;Biswajit Das ,&nbsp;Anibrata Banerjee ,&nbsp;Kalyan Kumar Chattopadhyay","doi":"10.1016/j.cartre.2025.100477","DOIUrl":"10.1016/j.cartre.2025.100477","url":null,"abstract":"<div><div>Raman imaging is a robust tool for probing nanomaterials, especially 2D systems, regarding phase conformation, composition, defects, internal stress, interfacial interactions, and phonon dynamics. This work presents the first proof-of-concept demonstration of mapping stress distribution, charge-phonon coupling, phonon lifetime, and associated vibrational attributes using a point-by-point, full-spectrum Breit-Wigner-Fano (BWF) analysis over a scalable mesh, cast upon the Raman image. Starting from ultrathin nanostructures, the potency of this technique extends to multi-layered quasi-2D flakes, encompassing vibrational modulations of particular molecular bonds compelled by interlayer van der Waals interactions. The experimental realization involves wrapping chemically processed reduced graphene oxide (rGO) over uniformly spaced, vertically aligned e-beam lithographed pillars. The theoretical foundation is derived from density functional theory (DFT)-based calculations on phonon dispersion, Raman spectra, and associated thermodynamic attributes for layer-specific graphene against varying biaxial tensile stress. Our results unlock the true spectroscopic potential of Raman microscopy in characterizing ‘on-chip’ stressed membranes for emerging applications.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100477"},"PeriodicalIF":3.1,"publicationDate":"2025-01-29","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143464877","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}

{"title":"Pseudo bismuth vanadate anchored EDLC-MWCNTs: Supercapacitive electrode to a symmetric solid-state device","authors":"Lakshmana Kumar Bommineedi ,&nbsp;Tushar B. Deshmukh ,&nbsp;Avinash C. Mendhe ,&nbsp;Sachin R. Rondiya ,&nbsp;Babasaheb R. Sankapal","doi":"10.1016/j.cartre.2025.100475","DOIUrl":"10.1016/j.cartre.2025.100475","url":null,"abstract":"<div><div>Sponge analogous nano pebbles of bismuth vanadate (BiVO₄) decorated over multi-walled carbon nanotubes (MWCNTs) synthesized by the successive ionic layer adsorption and reaction (SILAR) method have been explored towards supercapacitor application through enhanced (8 times) surface roughness (S_a) compared to bare MWCNTs; well supported by wettability studies. Electrochemical studies through CV, GCD, EIS, and electrochemical stability performances of the electrode have been performed in 1 M KCl electrolyte where MWCNTs/BiVO₄ showed the highest capacitance (1334.66 F/g) at 3 mV/s with good electrochemical stability of 103 % even after 3500 CV cycles. Interestingly, symmetric solid-state supercapacitor assembled using PVA embedded LiClO₄ gel exhibited a remarkable potential window of 1.83 V with corresponding energy and power densities of 18.38 Wh/kg and 2.13 kW/kg, respectively at 1 mA/cm². The novelty of this work lies in the introduction of a symmetric device using MWCNTs/BiVO₄ electrodes for the first time along with its potential for real-world use by illuminating ‘VNIT ‘acronym consisting of 21 red LEDs.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100475"},"PeriodicalIF":3.1,"publicationDate":"2025-01-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147811","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}

{"title":"MXenes for sustainable energy: A comprehensive review on conservation and storage applications","authors":"Mirlan Jussambayev ,&nbsp;Kalizhan Shakenov ,&nbsp;Shynggyskhan Sultakhan ,&nbsp;Ulan Zhantikeyev ,&nbsp;Kydyr Askaruly ,&nbsp;Kainaubek Toshtay ,&nbsp;Seitkhan Azat","doi":"10.1016/j.cartre.2025.100471","DOIUrl":"10.1016/j.cartre.2025.100471","url":null,"abstract":"<div><div>This review explores the potential of MXenes, a novel class of two-dimensional (2D) materials, in advancing energy storage and conservation technologies. MXenes exhibit exceptional physicochemical properties, including a high specific surface area (∼390 m² g⁻¹ for MXene@PPy-800), outstanding electrical conductivity, and robust chemical stability, making them ideal for energy-related applications. In supercapacitors, MXene-based electrodes have demonstrated capacitances exceeding 700 F g⁻¹ at 1 mV s⁻¹, with retention of over 90 % of their initial performance after 10,000 charge/discharge cycles. For lithium-ion batteries, MXenes achieve theoretical capacities ranging from 390 to 600 mAh g⁻¹, depending on the type of MXene material, with experimental reversible capacities often exceeding 400 mAh g⁻¹ at 1C rates and high cycling stability.</div><div>This review synthesizes recent research efforts on the synthesis, structural characterization, and integration of MXenes into energy storage systems. Findings highlight their versatility as electrode materials for supercapacitors, lithium-ion batteries, and fuel cells, as well as their catalytic potential in solar energy conversion. Despite these advancements, challenges remain unresolved. Scalability of MXene synthesis through selective etching methods continues to be a significant technical and economic barrier. Moreover, while MXene-based devices show high initial performance, further work is needed to improve long-term stability in operational and harsh chemical environments.</div><div>By providing a comprehensive overview of MXene-based energy systems, this review identifies critical gaps in understanding their electrochemical mechanisms, particularly ion transport and surface interaction dynamics. Addressing these challenges will be key to optimizing MXene properties and enabling their widespread application in efficient and sustainable energy technologies.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100471"},"PeriodicalIF":3.1,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147840","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}

{"title":"Co3O4-graphene core-shell QDs-PMMA insulating polymer composites structured nonvolatile bistable memory devices","authors":"Jinseo Park ,&nbsp;Jaeho Shim ,&nbsp;Dong Ick Son","doi":"10.1016/j.cartre.2025.100473","DOIUrl":"10.1016/j.cartre.2025.100473","url":null,"abstract":"<div><div>Nonvolatile hybrid inorganic/organic bistable memory devices fabricated utilizing Co₃O₄-graphene core-shell quantum dots (QDs) embedded in an insulating poly (methyl methacrylate) (PMMA) polymer matrix as active layer which were fabricated using a spin-coating technique. To improve the quantum confinement of Co₃O₄ QD, graphene, which has high electron affinity, was synthesized with Co₃O₄ QD core as a shell to form a core-shell structure that serves as an excellent trap site. Transmission electron microscopy (TEM) images revealed that Co₃O₄-graphene core-shell QDs with a diameter of approximately 5 nm were formed among the PMMA polymer matrix. Current-voltage (I-V) measurements on Al/ Co₃O₄-graphene core-shell QDs embedded in PMMA polymer matrix/indium-tin-oxide (ITO) devices at 300 K showed electrical bistability. The maximum ON/OFF ratio of the current bistability for the OBMDs was as large as 1.8 × 10⁴, the cycling endurance for the devices was above 2.5 × 10³ cycles, and retention times for the devices were larger than 5.8 × 10⁴ s. The carrier transport mechanisms for the devices were described by fitting the experimental I-V data using several models.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100473"},"PeriodicalIF":3.1,"publicationDate":"2025-01-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147812","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}

{"title":"Polarized Raman spectroscopy of aligned DNA-wrapped single-wall carbon nanotubes","authors":"Seyedeh Maryam Banihashemian ,&nbsp;Mohsen Mesbah ,&nbsp;Hesam Kamyab ,&nbsp;Mohammad Mahdi Taheri ,&nbsp;Balamuralikrishnan Balasubramanian","doi":"10.1016/j.cartre.2025.100469","DOIUrl":"10.1016/j.cartre.2025.100469","url":null,"abstract":"<div><div>This study introduces a new method to create highly ordered, self-aligned arrays of single-wall carbon nanotubes (SWCNTs) using short DNA composed of 20 thymine bases, known as Poly(dT)20. The SWCNTs were first functionalized through a chemical treatment involving a mixture of sulfuric acid (H₂SO₄) and nitric acid (HNO₃) in a 3:1 ratio, followed by uniform dispersion achieved via a cold ultrasonic technique. Subsequently, the Poly(dT)20 was wrapped around the SWCNTs using a sonothermal process, with variations in time and temperature to enhance alignment. The structural integrity and alignment of the resulting Poly(dT)20 /SWCNT arrays were characterized using scanning electron microscopy (SEM), and profile meter geometry analysis, all of which confirmed the successful alignment of the SWCNTs. Further analysis through ultraviolet-visible spectroscopy (UV–VIS) and Fourier-transform infrared spectroscopy (FTIR) provided evidence of the bonding interactions between the Poly(dT)20 and SWCNTs. Ennhanced Raman spectroscopy of the Poly(dT)20/SWCNT arrays, conducted with polarized light, revealed a significant dependence of the G-band on the polarization angle, yielding a depolarization ratio of 0.211 and linear relationship between I and Cos ² (α). The HRTEM image confirms that the attachment of 20-mer thymine to single-walled carbon nanotubes (SWCNTs) by wrapping around them introduces steric hindrance, which physically separates the nanotubes and prevents aggregation. This finding indicates a well alignment of the Poly(dT)20/SWCNT arrays. The anisotropic characteristics exhibited by the SWCNTs in conjunction with the Poly(dT)20 as a biomaterials suggest promising applications in various fields, including biomedical components, nano-electronic devices, and bio-optics.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100469"},"PeriodicalIF":3.1,"publicationDate":"2025-01-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147339","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}

{"title":"Challenges in carbon ink formulation and strategies for fabrication of flexible supercapacitors","authors":"Mohammad Saquib ,&nbsp;Shilpa Shetty ,&nbsp;Lakshmikanth M ,&nbsp;Akshatha Rathod ,&nbsp;Kavya Naik ,&nbsp;Ramakrishna Nayak ,&nbsp;M. Selvakumar","doi":"10.1016/j.cartre.2025.100458","DOIUrl":"10.1016/j.cartre.2025.100458","url":null,"abstract":"<div><div>The growing demand for flexible electronics has highlighted the significance of carbon-based conductive inks due to their cost-effectiveness, processability, conductivity, biocompatibility, and flexibility. This review investigates advanced materials such as graphene, carbon nanotubes, carbon black, and activated carbon, which are pivotal for ink formulation. It examines transformative printing technologies, including screen printing, inkjet printing, spray printing, direct ink writing, flexo-printing, and 3D printing. Advancements in ink formulations are discussed with a focus on the roles of binders, resins, and solvents, alongside challenges like optimizing rheological properties, particle sizes, and substrate adhesion. Each printing method's advantages and limitations are analysed concerning ink parameters like viscosity, stability, and compatibility with flexible substrates. By addressing the challenges and potential of carbon-based ink formulation, this review seeks to drive innovation in printed flexible electronics and energy storage devices for modern portable technologies.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100458"},"PeriodicalIF":3.1,"publicationDate":"2025-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147395","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}

{"title":"Investigation of Pb(II) adsorption by amine group enriched chitosan encapsulated iron oxides doped biochar for soil remediation","authors":"Hong-Hue Thi Nguyen ,&nbsp;Yong-Ho Choi ,&nbsp;Eun-Bi Kim ,&nbsp;Yong-Hoon Jeong ,&nbsp;Jae-Wook Lee ,&nbsp;Kyung-Hee Park ,&nbsp;Young-Jun Woo ,&nbsp;Sadia Ameen ,&nbsp;Dong-Heui Kwak","doi":"10.1016/j.cartre.2025.100465","DOIUrl":"10.1016/j.cartre.2025.100465","url":null,"abstract":"<div><div>We propose the possibility of using chitosan-modified magnetic biochar (CMBC) as a potential green material for treating heavy metals (HMs) that exist and persist in the environment. Different functional groups present on CMBC have been studied by surface analyses such as energy dispersive X-ray (EDX), Fourier transform infrared spectroscopy (FTIR), and X-ray photoelectron spectroscopy (XPS). Herein, Fe serves not only as a contributor to magnetism but also as a facilitator in the formation of bonds with Pb(II). The adsorption efficiency of Pb(II) by CMBC (1 % w/v) reached to ∼97.6 % in 60 min. With 200 ppm at initial Pb(II) concentration, CMBC showed an adsorption capacity of ∼88.75 mg·g⁻¹. The adsorption mechanism of Pb(II) by CMBC was consistent with the pseudo-second-order kinetic model with R² = 0.9997. During the adsorption of Pb(II) by CMBC, Langmuir isotherms delivered R² = 0.9993 which was larger than the R² = 0.9882 of Freundlich isotherm, indicating that Pb(II) adsorption mainly occurred on the surface of CMBC with the interaction between Pb(II) and functional groups. The adsorption efficiency of soluble Pb (Pb in soil) by CMBC reached ∼24.6 % after 5 days and ∼27 % after 7 days. This finding underscores that CMBC is capable of effectively removing HMs, such as Pb, in both aqueous and soil environments.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100465"},"PeriodicalIF":3.1,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147396","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}

{"title":"Exploring electrochemical performance of Zanthoxylum armatum seed-derived activated carbon using phosphoric acid (H3PO4) for sustainable energy storage applications","authors":"Deval Prasad Bhattarai ,&nbsp;Sabin Aryal ,&nbsp;Pawan Kumar Mishra ,&nbsp;Timila Shrestha ,&nbsp;Puspa Lal Homagai ,&nbsp;Hari Bhakta Oli ,&nbsp;Ram Lal (Swagat) Shrestha","doi":"10.1016/j.cartre.2025.100467","DOIUrl":"10.1016/j.cartre.2025.100467","url":null,"abstract":"<div><div>The escalating environmental concerns stemming from fossil fuel exploitation coupled with global energy demand and technological advancements underscore the urgent need for developing innovative energy storage solutions like supercapacitor. This study aims to address the critical need for advancing energy storage technologies to meet current requirements by utilizing bio-waste materials. In this research work, activated carbon for supercapacitor, as negative electrode materials were synthesized from <em>Zanthoxylum armatum</em> seeds through a multi-step carbonization process at an elevated temperature of 900 °C, utilizing H₃PO₄ as the activating agent (HZAC-900). The crystallinity of the material was examined using X-ray diffraction (XRD) technique, functional groups were identified via Fourier-transform infrared (FTIR) spectroscopy, and morphology was analyzed using Field Emission Scanning Electron Microscopy (FE-SEM). The HZAC-900 sample exhibited a higher surface area of 887.256 m² g⁻¹ as revealed by Brunauer-Emmett-Teller (BET) surface analysis. Furthermore, the chemical state of each element was analyzed using X-ray photoelectron spectroscopy (XPS). Comprehensive electrochemical evaluations, including cyclic voltammetry (CV), electrochemical impedance spectroscopy (EIS), and galvanostatic charge-discharge (GCD) tests, were conducted to assess the material's electrochemical performance. The activated carbon prepared at a carbonization temperature of 900 °C demonstrated a specific capacitance of 132.90 F g⁻¹ at a current density of 0.5 A g⁻¹, emphasizing its exceptional suitability for supercapacitor applications. These findings highlight the potential of <em>Zanthoxylum armatum</em> seed-derived activated carbon as an effective material for advanced energy storage systems, offering a promising avenue for the development of sustainable energy solutions.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100467"},"PeriodicalIF":3.1,"publicationDate":"2025-01-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147397","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}

{"title":"Developing a density functional theory model of glassy carbon via carbon defect induction and relaxation","authors":"K. Meerholz ,&nbsp;A. Falch ,&nbsp;C.G.C.E. van Sittert","doi":"10.1016/j.cartre.2025.100466","DOIUrl":"10.1016/j.cartre.2025.100466","url":null,"abstract":"<div><div>Glassy Carbon (GC) is a non-graphitising carbon known for its thermal stability, conductivity, and resistance to chemical attack, making it valuable in industrial and scientific applications, especially as an electrode substrate in catalysis research. Despite its widespread use, GC's precise structural characteristics is unclear due to synthesis variability. This study developed and validated a computational model to simulate GC's structure. Starting from the R3-carbon allotrope, density functional theory calculations were used to construct a representative GC model, incorporating induced defects to mimic its structural imperfections. Multiple GC slab models were created for comparative analysis. Validation involved comparing theoretical X-ray diffraction data with published data, confirming the model's accuracy in representing the GC's structure. The model showed high correlation with existing models, particularly those by Jurkiewicz et al., emphasizing the effect of formation temperature on GC's structural evolution. These findings enhance the understanding of GC's structural complexities, providing a solid foundation for future research and applications in material science, especially for robust and conductive substrates used in electrocatalysis.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100466"},"PeriodicalIF":3.1,"publicationDate":"2025-01-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143148011","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}

{"title":"Continuous Production of Carbon Foam from Carbon Ore","authors":"Caleb Gula ,&nbsp;Kody Wolfe ,&nbsp;Jason Trembly ,&nbsp;John Staser ,&nbsp;Rudolph Olson III ,&nbsp;Eric Shereda ,&nbsp;Yahya Al-Majali","doi":"10.1016/j.cartre.2025.100459","DOIUrl":"10.1016/j.cartre.2025.100459","url":null,"abstract":"<div><div>Since the discovery of coal-derived carbon foam materials, there has been a significant increase in the adoption of these materials in high-value applications, particularly within the aerospace industry. Coal-derived carbon foam materials offer exceptional thermal and mechanical properties, positioning them as an optimal choice for high-volume applications such as building and construction. Yet, their broader adoption in such applications is hindered by the limitations of the current batch or semi-continuous processing techniques. This research introduces an innovative method for continuous production of carbon foam materials using a direct extrusion process. Bituminous coals (Pittsburgh No 8 and White Forest) were continuously extruded at varying feed rates, temperatures, and extrusion speeds to produce a carbon foam material. The resultant green foams were characterized via thermogravimetric analysis (TGA), differential scanning calorimetry (DSC), ultimate/proximate analysis, and optical microscopy. This study not only successfully demonstrated the extrudability of plasticized coal using a commercial bench-scale extrusion system but also revealed that their performance is expected to be comparable to that of batch-processed coal-derived carbon foam materials.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100459"},"PeriodicalIF":3.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143148008","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}