Carbon Trends最新文献

筛选
英文 中文
Low-temperature active site formation for oxygen reduction reaction in (Fe, N)-doped carbon black via rapid thermal annealing (Fe, N)掺杂炭黑快速热退火氧还原反应的低温活性位形成
IF 3.9
Carbon Trends Pub Date : 2025-08-07 DOI: 10.1016/j.cartre.2025.100556
Guanyu Wang, Lijie Zhang, Atsunori Ikezawa, Hajime Arai, Keiko Waki
{"title":"Low-temperature active site formation for oxygen reduction reaction in (Fe, N)-doped carbon black via rapid thermal annealing","authors":"Guanyu Wang,&nbsp;Lijie Zhang,&nbsp;Atsunori Ikezawa,&nbsp;Hajime Arai,&nbsp;Keiko Waki","doi":"10.1016/j.cartre.2025.100556","DOIUrl":"10.1016/j.cartre.2025.100556","url":null,"abstract":"<div><div>Nitrogen- and iron- doped carbon-based materials are promising oxygen reduction reaction (ORR) catalysts that can replace precious platinum-based catalysts. Among carbon-based materials, carbon black (CB) is attractive owing to its high surface areas, high wettability and high intrinsic electrical conductivity, and it has been reported that high annealing temperatures such as 900 °C is required to introduce FeNx active sites to CBs. In this study, we used defective acid-treated CBs that are suitable for FeNx accommodation, and employed direct nitrogen doping of iron-added defective CBs by rapid thermal annealing in ammonia. As a result, it was shown that the FeN<sub>x</sub> active sites can be formed at a low temperature of 500 °C. We then comparatively explored the relationship between the annealing temperatures (500 °C, 700 °C and 900 °C) and the characteristics of the products including the ORR activity, and found that the highest ORR activity is obtained with a sample annealed at 700 °C. The Raman spectroscopy, transmission electron microscopy and X-ray absorption spectroscopy indicate that the FeN<sub>x</sub> species transform into FeN<sub>4</sub> configurations in the edge with the optimized defect levels at 700 °C, resulting in high ORR activity. Further increasing the temperature to 900 °C leads to the evolution of FeNx species into FeN₂ configurations along with increased Fe nanoparticle aggregation, which diminishes catalytic performance.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"21 ","pages":"Article 100556"},"PeriodicalIF":3.9,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810114","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
Electrochemical preparation of exfoliated graphite composites from a ferric chloride-graphite intercalation compound 氯化铁-石墨插层化合物制备剥离石墨复合材料的电化学研究
IF 3.9
Carbon Trends Pub Date : 2025-08-07 DOI: 10.1016/j.cartre.2025.100560
Keita Niitani , Masayuki Morita , Takeshi Abe
{"title":"Electrochemical preparation of exfoliated graphite composites from a ferric chloride-graphite intercalation compound","authors":"Keita Niitani ,&nbsp;Masayuki Morita ,&nbsp;Takeshi Abe","doi":"10.1016/j.cartre.2025.100560","DOIUrl":"10.1016/j.cartre.2025.100560","url":null,"abstract":"<div><div>Exfoliated graphite-based composites have attracted attention across various fields, such as fuel cells and sensors. Herein, we present a facile method to prepare exfoliated graphite composites containing metal compounds. A FeCl<sub>3</sub>-graphite intercalation compound is first synthesized from raw graphite powder and then exfoliated by electrochemical reduction in aqueous KOH solutions. Structural analysis reveals that the exfoliated graphite comprises carbon layers that encapsulate KCl and Fe particles. Furthermore, we discuss the reaction mechanism based on the relation between the KOH concentration and the electrochemical potential.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"21 ","pages":"Article 100560"},"PeriodicalIF":3.9,"publicationDate":"2025-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144830878","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 activated carbon from Balanites aegyptiaca and hyphaene thebaica shells by physical activation 以埃及巴兰和白炭黑壳为原料物理活化合成活性炭
IF 3.9
Carbon Trends Pub Date : 2025-08-06 DOI: 10.1016/j.cartre.2025.100555
Maâzou Siragi D B , Ibrahim Natatou , Vincent Dubois
{"title":"Synthesis of activated carbon from Balanites aegyptiaca and hyphaene thebaica shells by physical activation","authors":"Maâzou Siragi D B ,&nbsp;Ibrahim Natatou ,&nbsp;Vincent Dubois","doi":"10.1016/j.cartre.2025.100555","DOIUrl":"10.1016/j.cartre.2025.100555","url":null,"abstract":"<div><div>Activated carbon is a porous material that has several applications, including in the fields of adsorption and catalysis. This material can be obtained from any lignocellulosic biomass. The aim of this work is to synthesize activated carbon (AC) from <em>Balanites aegyptiaca</em> (BA) and <em>Hyphaene thebaica</em> (HT) shells. The material is obtained after physical activation under nitrogen or carbon dioxide flow. The characterization of the material has been carried out using a variety of analytical methods, including nitrogen adsorption at 77 K to determine its porosity and specific surface area, the iodine index and methylene blue index tests. Surface functions, pH to point of zero charge measurement to determine its acidity, and X-ray diffraction to examine its structural properties. The most optimal values for specific surface area and porous volume are 939 m²/g and 0.572 cm³/g, respectively, for <em>Balanites aegyptiaca</em>. For <em>Hyphaene thebaica</em>, they are 1329 m²/g and 0.589 cm³/g. It is noteworthy that 62 % of the samples have mean pore diameters higher than 20 Å. The results of the iodine and methylene blue index tests show that the samples have a satisfactory adsorption capacity within the aqueous phase. The surface functions of the activated carbons prepared are basic, with pH values ranging from 10.2 to 10.8 at the point of zero charge. The structure of these materials is amorphous, with fine graphitic zones.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"21 ","pages":"Article 100555"},"PeriodicalIF":3.9,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144842776","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
A review of the development of graphene material preparation via chemical approaches 综述了化学法制备石墨烯材料的研究进展
IF 3.9
Carbon Trends Pub Date : 2025-08-06 DOI: 10.1016/j.cartre.2025.100557
Abeer M. Almusaad , Fayez M. Al-Alweet , Riyadh H. Alshammari , Bandar M. AlOtaibi , Tahani S. Algarni , Fahad S. Alkasmoul , Basheer A. Alshammari
{"title":"A review of the development of graphene material preparation via chemical approaches","authors":"Abeer M. Almusaad ,&nbsp;Fayez M. Al-Alweet ,&nbsp;Riyadh H. Alshammari ,&nbsp;Bandar M. AlOtaibi ,&nbsp;Tahani S. Algarni ,&nbsp;Fahad S. Alkasmoul ,&nbsp;Basheer A. Alshammari","doi":"10.1016/j.cartre.2025.100557","DOIUrl":"10.1016/j.cartre.2025.100557","url":null,"abstract":"<div><div>Graphene nanomaterials have become the focus of scientific research and development activities due to unique physical and chemical properties. A widespread technique for the large-scale synthesis of graphene nanoparticles is referred to as \"Hummer's\" method. This process often produces hydrophilic functionalized graphene-based materials, referred to as graphene oxide (GO) and reduced graphene oxide (r-GO). It relies on the use of oxidation steps to achieve exfoliation of graphite micromaterials as raw resources to obtain graphite oxide also known as graphitic acid followed by further exfoliation techniques to attain GO materials. The different exfoliation degrees can be obtained by various standard amounts of chemical acids, which lead to different functional groups containing oxygen at various degrees of oxidation, which have effects on the electrochemical and physic-chemical characteristics. Understanding the structure of such graphite oxide has been involved in advancing the synthesis chemical methods, paving the way for the development of diverse graphene-based materials Therefore, the chemical synthesis progress based on Hummer's” approaches to prepare graphene nanomaterials have been reviewed. Also, development directions and the existing challenges are explained for pretreatment and surface functional modification for such nanomaterials.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"21 ","pages":"Article 100557"},"PeriodicalIF":3.9,"publicationDate":"2025-08-06","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144810115","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
Electrochemical sensing of benzodiazepines: Tracing the evolution of carbonaceous nano-hybrid materials from 3D to 0D, their integration into smart technologies for real-time monitoring 苯二氮卓类药物的电化学传感:追踪碳质纳米杂化材料从3D到0D的演变,并将其集成到实时监测的智能技术中
IF 3.9
Carbon Trends Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100548
Darshana Chatterjee, Ida Tiwari
{"title":"Electrochemical sensing of benzodiazepines: Tracing the evolution of carbonaceous nano-hybrid materials from 3D to 0D, their integration into smart technologies for real-time monitoring","authors":"Darshana Chatterjee,&nbsp;Ida Tiwari","doi":"10.1016/j.cartre.2025.100548","DOIUrl":"10.1016/j.cartre.2025.100548","url":null,"abstract":"<div><div>The misuse of benzodiazepines, often implicated in drug-facilitated crimes, presents a significant global concern, profoundly affecting public health and safety. In response to the growing need for rapid, sensitive, and on-site detection methods, this review aims to critically evaluate the current landscape of electrochemical sensing of benzodiazepines. The main objective is to consolidate fragmented research findings on a singular platform and trace the progression of carbonaceous nanohybrid materials from early 3D frameworks to modern 0D structures into a cohesive overview that highlights emerging trends and innovations. We also aim to evaluate how this transformation has enhanced sensor performance. Unlike previous reviews that predominantly focus on conventional gold-standard techniques such as chromatographic and spectroscopic methods, this work focuses exclusively on electrochemical sensing as a promising, portable, and real-time alternative. This evolutionary approach has led to considerable improvements in sensitivity, selectivity, and portability, making these systems increasingly suitable for field-deployable applications. By highlighting key advances especially in graphene oxide (GO), carbon nanotubes (CNTs), fullerenes, quantum dots (QDs) and their metal-oxide-supported nanocomposites, this review underscores how nanostructure dimensionality directly influences electrochemical response. Furthermore, it explores the integration of these advanced materials into smart sensing platforms including those with AI-enabled features, positioning them as next-generation solutions. This work not only maps current advancements but also identifies future research directions bridging the gap between laboratory research and deployable forensic tools.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"20 ","pages":"Article 100548"},"PeriodicalIF":3.9,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779942","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
Modeling the effect of pitting on the tensile behavior of amorphous carbon and carbon fiber 模拟点蚀对非晶碳和碳纤维拉伸性能的影响
IF 3.9
Carbon Trends Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100549
Victoria Arias , Sam Chen , Justin B. Haskins , Francesco Panerai , Harley T. Johnson , Kelly A. Stephani
{"title":"Modeling the effect of pitting on the tensile behavior of amorphous carbon and carbon fiber","authors":"Victoria Arias ,&nbsp;Sam Chen ,&nbsp;Justin B. Haskins ,&nbsp;Francesco Panerai ,&nbsp;Harley T. Johnson ,&nbsp;Kelly A. Stephani","doi":"10.1016/j.cartre.2025.100549","DOIUrl":"10.1016/j.cartre.2025.100549","url":null,"abstract":"<div><div>FiberForm, the substrate of the Phenolic Impregnated Carbon Ablator (PICA), contains various fundamental forms of carbon, including vitreous or highly ordered graphitic regions in the carbon fiber core and amorphous or turbostratic carbon in the binder material, which provides stiffness to the material. In this study, we use the AIREBO potential to investigate the effect of pitting on the elastic properties of carbon fiber (CF) and amorphous carbon (AC). The generation, structural characterization, and loading of pristine AC and CF are compared with their pitted counterparts over a range of densities (1.27 g/cm<sup>3</sup> to 2.93 g/cm<sup>3</sup>) and porosities. Results show a reduction of up to 18.7% in elastic modulus for AC and a reduction of 13.7% in modulus for CF. We also observe AC to have weaker tensile behavior for both oxidized and pristine states, supporting the hypothesis that FiberForm is likely to fail at the binder. The present work advances fundamental understanding of the coupling between oxidation and mechanical behavior of carbon-based TPS materials and serves as a basis for larger-scale simulations.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"20 ","pages":"Article 100549"},"PeriodicalIF":3.9,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779943","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
Hydrogenation and etching of single-layer graphene during exposure to atomic hydrogen 暴露于氢原子时单层石墨烯的氢化和蚀刻
IF 3.9
Carbon Trends Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100553
Tom Fournier , Samir El Masaoudi , Iann C. Gerber , Benjamin Lassagne , Cedric Crespos , Jean-Marc Leyssale , Kelvin Cruz , Germercy Paredes , Felana Andriambelaza , Marc Monthioux , Pascal Puech , Fabrice Piazza
{"title":"Hydrogenation and etching of single-layer graphene during exposure to atomic hydrogen","authors":"Tom Fournier ,&nbsp;Samir El Masaoudi ,&nbsp;Iann C. Gerber ,&nbsp;Benjamin Lassagne ,&nbsp;Cedric Crespos ,&nbsp;Jean-Marc Leyssale ,&nbsp;Kelvin Cruz ,&nbsp;Germercy Paredes ,&nbsp;Felana Andriambelaza ,&nbsp;Marc Monthioux ,&nbsp;Pascal Puech ,&nbsp;Fabrice Piazza","doi":"10.1016/j.cartre.2025.100553","DOIUrl":"10.1016/j.cartre.2025.100553","url":null,"abstract":"<div><div>Opening a band gap in graphene is essential for its integration into electronic devices, but remains a major challenge. Hydrogenation offers a promising route, though the process is complicated by competing mechanisms such as hydrogen desorption and unwanted etching. Here, we investigate one-sided hydrogenation of monolayer graphene on SiO₂/Si substrates at temperatures below ∼100 °C, using a hot-filament-assisted method compatible with semiconductor processing. Our results reveal a regime where hydrogen chemisorption and hole formation (etching) coexist. Dehydrogenation experiments and first-principles calculations indicate that hydrogen atoms preferentially cluster on neighboring carbon sites, potentially leading to dome-like lattice distortions. While hydrogen incorporation is favored at these sites, our simulations suggest that the resulting stresses alone are insufficient to cause carbon–carbon bond breakage. Instead, etching likely requires the presence of energetic atomic hydrogen. These findings help clarify the interplay between hydrogenation and etching and provide guidance for controlled graphene functionalization in device applications.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"20 ","pages":"Article 100553"},"PeriodicalIF":3.9,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779944","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
Corrigendum to “Highly durable carbon fabric strain sensor: Monitoring environmental changes and tracking human motion” [Carbon Trends 19 (2025) 100457] “高度耐用的碳织物应变传感器:监测环境变化和跟踪人体运动”的勘误表[carbon Trends 19 (2025) 100457]
IF 3.9
Carbon Trends Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100543
Tae Won Ha , Chil-Hyoung Lee , Dae Yun Lim , Young Baek Kim , Hyunjin Cho , Jin Hyeok Kim , Dong-Su Kim
{"title":"Corrigendum to “Highly durable carbon fabric strain sensor: Monitoring environmental changes and tracking human motion” [Carbon Trends 19 (2025) 100457]","authors":"Tae Won Ha ,&nbsp;Chil-Hyoung Lee ,&nbsp;Dae Yun Lim ,&nbsp;Young Baek Kim ,&nbsp;Hyunjin Cho ,&nbsp;Jin Hyeok Kim ,&nbsp;Dong-Su Kim","doi":"10.1016/j.cartre.2025.100543","DOIUrl":"10.1016/j.cartre.2025.100543","url":null,"abstract":"","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"20 ","pages":"Article 100543"},"PeriodicalIF":3.9,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144826955","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
Recent advancements in MXene-based catalysts: Synthesis, characterization, and applications in sustainable energy production mxene基催化剂的合成、表征及其在可持续能源生产中的应用
IF 3.9
Carbon Trends Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100551
Nur-Sultan Mussa , Kydyr Askaruly , Kalampyr Bexeitova , Seitkhan Azat , Kainaubek Toshtay
{"title":"Recent advancements in MXene-based catalysts: Synthesis, characterization, and applications in sustainable energy production","authors":"Nur-Sultan Mussa ,&nbsp;Kydyr Askaruly ,&nbsp;Kalampyr Bexeitova ,&nbsp;Seitkhan Azat ,&nbsp;Kainaubek Toshtay","doi":"10.1016/j.cartre.2025.100551","DOIUrl":"10.1016/j.cartre.2025.100551","url":null,"abstract":"<div><div>MXenes have emerged as promising two-dimensional (2D) materials for catalytic applications in energy production due to their exceptional structural, electronic, and chemical properties. Their high surface area, tunable surface terminations, and excellent electrical conductivity make them ideal candidates for facilitating surface reactions and enhancing charge transfer processes. Additionally, the ability to modify their composition and structure at the atomic level allows for the design of tailored MXene-based catalysts suited for various energy-related reactions. This review highlights recent advancements in MXene-based catalysts, focusing on novel synthesis techniques, including selective etching, CVD and ALD, as well as advanced characterization methods such as XRD, Raman spectroscopy, TEM, FTIR, and <em>In-situ/</em>Operando techniques. Their applications in key catalytic processes, including the Fischer-Tropsch synthesis of hydrocarbons, CO₂ hydrogenation to methane, and hydrogen production via electrochemical water splitting, are discussed, as these reactions play a crucial role in carbon utilization, energy storage, and the transition to sustainable fuels. Notably, Mo₂C-based catalysts favor heavier hydrocarbon formation, while NiV oxycarbide electrocatalysts exhibit high durability and hydrogen selectivity. These findings emphasize MXenes’ potential in sustainable energy conversion and highlight the need for further optimization to enhance their catalytic efficiency and stability.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"20 ","pages":"Article 100551"},"PeriodicalIF":3.9,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144779792","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
Tunable electrical properties of polysaccharide films from grafted-pectin nanocomposites 接枝果胶纳米复合材料多糖膜的可调电性能
IF 3.9
Carbon Trends Pub Date : 2025-08-01 DOI: 10.1016/j.cartre.2025.100518
Araceli Granja Alvear , Silvana Chiriboga , Sebastian Ojeda , Gottfried Suppan , Lola De Lima , Vivian Morera , Julio C. Chacón-Torres , Juan Pablo Saucedo-Vázquez , Floralba López
{"title":"Tunable electrical properties of polysaccharide films from grafted-pectin nanocomposites","authors":"Araceli Granja Alvear ,&nbsp;Silvana Chiriboga ,&nbsp;Sebastian Ojeda ,&nbsp;Gottfried Suppan ,&nbsp;Lola De Lima ,&nbsp;Vivian Morera ,&nbsp;Julio C. Chacón-Torres ,&nbsp;Juan Pablo Saucedo-Vázquez ,&nbsp;Floralba López","doi":"10.1016/j.cartre.2025.100518","DOIUrl":"10.1016/j.cartre.2025.100518","url":null,"abstract":"<div><div>Thin films of grafted pectin were prepared by incorporating thiourea into its structure, using epichlorohydrin as a cross-linker agent. In addition, silver nanoparticles were embedded in the polymer matrix. The changes in the chemical and structural properties of modified pectin were evidenced by FT-IR spectroscopy, XRD, and X-ray Photoelectron Spectroscopy (XPS), while its morphological properties of silver nanoparticles were evaluated by STEM and DLS. Such structural and morphological characterization, along with the optical properties determined by UV–Vis spectroscopy, confirmed the incorporation of silver nanoparticles in the pectin films. The XRD study indicates that the grafting of thiourea onto pectin reinforces its structure, which is reflected in the alteration of the resulting polymer’s amorphousness by hindering the relaxation of its structure; this change is responsible for the decrease in conductivity observed by EIS. The ionic conductivity and band gap energy were estimated by Tauc plot using the UV–Vis Diffuse Reflectance measurements. The remarkably different electrical behavior, diffuse reflectance, and electrochemical impedance (EIS) exhibited by the nanocomposite compared to pristine pectin are consistent with the observed structural changes. Due to a potential conductive network that facilitates ion movement, adding silver nanoparticles (AgNPs) to the pectin matrix improves ionic conductivity and influences the optical band gap.</div></div>","PeriodicalId":52629,"journal":{"name":"Carbon Trends","volume":"20 ","pages":"Article 100518"},"PeriodicalIF":3.9,"publicationDate":"2025-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144750105","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
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:604180095
Book学术官方微信