Carbon Trends最新文献

{"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":"Enhancing zinc-air battery performance through ph-tuned biopolymeric hydrogels in near-neutral electrolytes","authors":"Sara Vaca-Chacón ,&nbsp;Vivian Morera Córdova ,&nbsp;José Béjar ,&nbsp;Lorena Álvarez-Contreras ,&nbsp;Juan P. Tafur","doi":"10.1016/j.cartre.2025.100462","DOIUrl":"10.1016/j.cartre.2025.100462","url":null,"abstract":"<div><div>In light of the escalating global energy demands and the critical pursuit of sustainable energy solutions, this research delves into the electrolytic behavior of biopolymeric hydrogels derived from chitosan and starch in near-neutral ionic solutions within a ZnCl₂ + NH₄Cl system, evaluated at different pH values to enhance zinc-air battery (ZAB) performance. The study evaluates the impact of ionic solution pH on the structural, morphological, thermal, mechanical, and electrochemical properties of the hydrogels in primary ZAB prototypes. Remarkably, at a near-neutral pH of 7, the polymer gel electrolyte demonstrated superior ionic conductivity (0.11 S·cm⁻¹), specific capacity (675 mAh·g⁻¹), lower volume resistances and higher specific capacitances. Thermal analysis revealed increased stability of the polymer gel systems at elevated pH levels. This finding was corroborated by Scanning Electron Microscopy (SEM), which evidenced the presence of uniform and cohesive microstructures attributed to the formation of stable zinc-amine complexes. Fourier Transform Infrared Spectroscopy (FTIR) indicated pH-dependent variations in the vibrational bands of functional groups, influencing zinc ion interactions and electrochemical performance. X-ray diffraction (XRD) analysis revealed the absence of solid precipitates at pH 7, which enhances ionic mobility and conductivity. Consequently, the findings suggest that maintaining near neutral pH conditions substantially enhances the physical and electrochemical properties of ZAB. Hence, the proposed system constitutes a promising avenue for sustainable energy storage solutions.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100462"},"PeriodicalIF":3.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147401","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":"Turning Waste into Watt: Usage of natural biomass activated carbon-based anode and septic tank wastewater for Microbial Fuel Cell (MFC) based electricity generation","authors":"Nithya Rathinavel ,&nbsp;Ananthi Veleeswaran ,&nbsp;Yuvakkumar Rathinam ,&nbsp;Arun Alagarsamy","doi":"10.1016/j.cartre.2025.100461","DOIUrl":"10.1016/j.cartre.2025.100461","url":null,"abstract":"<div><div>Activated carbons (ACs) are a highly desirable and challenging porous material. They are usually produced from biomass waste, which makes them a promising material for improved electrochemical capacitive efficiency. In the present study, we synthesized ACs from three various kinds of natural biomass wastes: orange peel (OP), loofah sponge (LS), and sugarcane bagasse (SB), using KOH treatment and the pyrolysis process. Various characterization studies, such as XRD, Raman spectroscopy, SEM with EDAX, BET, FTIR, and XPS, revealed the morphological and structural character of the developed ACs. The electrochemical studies appraised for ACs coated with copper (C) and aluminium (A) showed that orange peel activated carbon coated with copper foil (OPACC) has high surface area and lower internal resistance (Rs 18.13 Ω and Rct 28.68 Ω). We employed all produced electrodes as anode and septic tank wastewater (STWW) as anolyte in MFC application. Here we attained highest power density (163.84±0.5mW/m²), current density (372±2.3 mA/m²) and coulombic efficiency (49.33±1.01%) for OPACC electrode based MFC. The present study provides the first insight into comparing activated carbons produced from different biomass wastes and their performance as anodes in MFC for electricity production. These findings could benefit the future development of relevant renewable energy producers, potentially creating socially and morally acceptable biomass waste-based AC electrodes for MFCs.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100461"},"PeriodicalIF":3.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143148007","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}

{"title":"One-step synthesis of lignin-derived carbon nanofibers without the need for stabilization: Characterization and applications","authors":"Karishma Jain ,&nbsp;Mandeep Singh ,&nbsp;Kushagra Yadav ,&nbsp;Ashish Gupta ,&nbsp;Suraj Loomba ,&nbsp;Nasir Mahmood ,&nbsp;S.R. Dhakate","doi":"10.1016/j.cartre.2025.100456","DOIUrl":"10.1016/j.cartre.2025.100456","url":null,"abstract":"<div><div>Thermal oxidative stabilization is a crucial parameter in carbon nanofiber (CNF) synthesis which which is important for the retention of fiber geometry during the rigorous carbonization process. However, its conventional implementation is burdened by significant time and energy expenditures. This study explores the feasibility of circumventing the stabilization step and its repercussions on the properties of lignin-PVA-derived electrospun CNF mats. Electrospun mats were subjected to carbonization after thermal stabilization (St-CNF) and without thermal stabilization (NSt-CNF). The morphological analysis revealed that despite the exclusion of stabilization, the fibrous structure remains intact without fusion. However, its noticeable impact on carbon yield, graphitic content, and defect density of CNF has been observed. In comparison to NSt-CNF, the St-CNF has higher carbon yield and mass loss fraction, suggesting additional cross-linking and thermal stability. Additionally, a higher specific surface area (381.5 m²/g) and pore volume (0.40 cc/g) were also observed in St-CNF compared to NSt-CNF (162.9 m²/g, 0.15 cc/g), enhancing the electrochemical properties such as specific capacitance (191.5 F/g), energy and power density (26.6 Wh/kg at 520.5 W/kg) of St-CNF. This study provides valuable insight into the properties of lignin-based CNFs, prepared by including or excluding the stabilization step, and explores their potential effect in energy storage applications.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100456"},"PeriodicalIF":3.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147398","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":"Influence of the sequential purification of biomass-derived carbon dots on their colloidal and optical properties","authors":"Andrea S. Gonzalez-Vera ,&nbsp;Carlos A. Pineda-Arellano ,&nbsp;Armando Ramírez-Monroy ,&nbsp;J. Matos ,&nbsp;Luis F. Chazaro-Ruiz ,&nbsp;J. Rene Rangel-Mendez ,&nbsp;Conchi O. Ania","doi":"10.1016/j.cartre.2025.100460","DOIUrl":"10.1016/j.cartre.2025.100460","url":null,"abstract":"<div><div>The purification of photoluminescent carbon dots has a strong impact on their applications, making rigorous protocols necessary to isolate them. In this work, a sequential filtration process was implemented on photoluminescent carbon dots synthesized by a microwave-assisted hydrothermal treatment of an agricultural waste, achieving good effectiveness and higher yields compared to chromatographic purification approaches. Filtration membranes of different cut-offs were carefully selected considering the by-products from the biomass decomposition. The synthetic route allowed the preparation of carbon dots with average particle sizes of 3.5 nm, composed of a graphitic-like core decorated with oxygen and nitrogen moieties. Dynamic light scattering measurements of the suspensions revealed higher aggregation of the nanoparticles in the least purified samples. This also influences the photoluminescence emission properties due to self-absorbing and quenching effects. The thermal characterization of the solids recovered after each filtration step has shown (for the least purified samples) the presence of fragments assigned to molecules arising from an incomplete hydrothermal transformation of the precursor. The aqueous suspension of the carbon dots recovered after the most purified protocol displayed a notorious emission upon excitation at 375 nm, confirming that the carbon dots are responsible for the observed optical features. These results highlight the importance of an adequate purification process of carbon dots obtained from complex precursors (such as biomass), to avoid bias interpretation of their photoluminescence properties.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100460"},"PeriodicalIF":3.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147402","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":"Development and evaluation of folic acid conjugated curcumin-loaded functionalized multiwalled carbon nanotubes for enhanced efficacy in ovarian cancer treatment","authors":"Aditi Chattaraj ,&nbsp;Yachana Mishra ,&nbsp;Alaa A.A. Aljabali ,&nbsp;Vijay Mishra","doi":"10.1016/j.cartre.2025.100464","DOIUrl":"10.1016/j.cartre.2025.100464","url":null,"abstract":"<div><div>The objective of the present study was to enhance the efficacy of curcumin (CUR) by designing a carboxylated multiwalled carbon nanotubes (MWCNT-COOH) based delivery system. In this study, we coupled MWCNT-COOH with folic acid (FA) to create a unique active targeting as well as a pH-responsive formulation for administering CUR to ovarian tumor locations. CUR was loaded onto MWCNT-COOH using the direct method, and then FA conjugation was performed. Using different techniques, such as Fourier transform infrared (FTIR) spectroscopy, Field emission scanning electron microscopy (FE-SEM), Differential light scattering (DLS), Proton Nuclear Magnetic Resonance (¹HNMR) spectroscopy, Raman spectroscopy, X-Ray diffraction (XRD), the curcumin-loaded MWCNTs (CUR-MWCNT-COOH) and the FA-bound formulation (CUR-MWCNT-COOH-FA) were analyzed. The pH-responsive release of CUR-MWCNT-COOH-FA nanocomplexes was observed in a neutral and acidic environment (pH 7.4; pH 4). When comparing pH 4 to pH 7.4, a noticeably higher cumulative percentage of drug release was observed. A dispersion study revealed the presence of functional groups on the outermost surface of both the functionalized MWCNT as well as formulations increased their resilience via converting the hydrophobic MWCNT surface to hydrophilic property. Both CUR-MWCNT-COOH as well as CUR-MWCNT-COOH-FA exhibited a dose-dependent correlation with CUR concentration when it came to in vitro cytotoxicity (measured by SRB assay). SK-OV-3 cell line was used to exhibit significant growth suppression activity against cancer cells at a CUR dose of 40 µg/mL. In conclusion, the addition of FA to CUR-MWCNT-COOH improved the drug's cytotoxicity and cellular absorption along with its bioavailability. Overall, these findings highlight the potential of CUR-MWCNT-COOH-FA as an effective drug-conjugated system for the delivery of CUR to treat ovarian cancer (OC). This study significantly enhances targeted drug delivery techniques for OC by demonstrating the possibility of a novel, pH-responsive, MWCNT-COOH-FA-directed delivery system. Our findings notably show that the addition of FA improves the cellular absorption and bioavailability of CUR-loaded MWCNT-COOH, leading to greater therapeutic efficacy against OC cells. The drawbacks of traditional chemotherapy, such as poor absorption along with non-specific toxicity, could be addressed by this tailored approach. Our research opens the door for the development of more individualized and effective alternative treatments for OC patients by more efficiently and specifically delivering curcumin to OC cells.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100464"},"PeriodicalIF":3.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143147394","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":"Exfoliated graphite via ball-milling for enhanced microwave absorption and electrochemical energy storage application","authors":"Sushree Pattnaik ,&nbsp;Arya Das ,&nbsp;E.V. Bhavya ,&nbsp;Ashok Kumar Sahu ,&nbsp;Balamati Choudhury ,&nbsp;Mamata Mohapatra","doi":"10.1016/j.cartre.2025.100463","DOIUrl":"10.1016/j.cartre.2025.100463","url":null,"abstract":"<div><div>Graphite and its derivatives are one of the emerging materials in energy storage and microwave absorption application. In the present study, exfoliated graphite generated from a high-pure graphite precursor through a cost-effective and environmentally friendly planetary ball milling technique has been evaluated for its supercapacitive and microwave absorption properties. The exfoliated graphite exhibits a two-fold increase in surface area compared to the high-pure graphite. The O/C ratio increased to 16.69% due to the presence of oxygen groups after ball milling, enhancing the microwave absorption and electrochemical energy storage performance of exfoliated graphite. Remarkably, the exfoliated graphite shows an enhanced microwave absorption of ∼59.15% across 8.2-12.4 GHz. Further for the realisation of the practical application, simulation study has been incorporated showing a minimum reflection loss of -25.53 dB at 9.7 GHz combining with a ferrite material. It also exhibits an excellent specific capacitance value of 177 Fg^-1 at a current density of 0.5 Ag^-1 for three electrode system. When assembled as a symmetric two-electrode system the exfoliated graphite exhibits an energy density of 1.66 Whkg^-1 with a power density of 420 Wkg^-1. This study provides a detailed investigation of exfoliated graphite as a potential material for microwave absorption and electrochemical energy storage.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"19 ","pages":"Article 100463"},"PeriodicalIF":3.1,"publicationDate":"2025-01-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143148005","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}