Carbon Letters最新文献_第10页

The interaction between chlorine and the edge of graphene-based material: a first-principles study 氯与石墨烯基材料边缘的相互作用：第一原理研究

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-28 DOI: 10.1007/s42823-024-00712-6

Ke Deng, Qin Zhang, Lixiao Zhu, Youshi Zeng, Wei Liu

{"title":"The interaction between chlorine and the edge of graphene-based material: a first-principles study","authors":"Ke Deng, Qin Zhang, Lixiao Zhu, Youshi Zeng, Wei Liu","doi":"10.1007/s42823-024-00712-6","DOIUrl":"10.1007/s42823-024-00712-6","url":null,"abstract":"<div><p>Chlorine is a crucial radionuclide that must be removed in irradiated nuclear graphite. Understanding the interaction between chlorine and graphene-based materials is essential for studying the removal process of <sup>36</sup>Cl from irradiated nuclear graphite. In this study, first-principle density functional theory (DFT) was utilized to investigate the adsorption characteristic of chlorine on the original and reconstructed edges of graphene-based materials. Based on the calculation of adsorption energy of the structures after each step of adsorption, the most energetically favorable adsorption routes at four types of edge were determined: Along the armchair edge and reconstructed zigzag edge, the following adatoms would be adsorbed to compensate the distortion induced by the previously adsorbed atom. Meanwhile at the original zigzag edge, chlorine atoms would be adsorbed alternatively along the edge to minimize the repulsion between two adjacent chlorine atoms. The chemical nature of the bonds formed as a result of adsorption was elucidated through an examination of the density of states (DOS) for the two adsorbed chlorine atoms and the carbon atoms attached. Furthermore, to assess the relative stability of the adsorption structures, formation energy of all energetically favorable structures following adsorption was computed. Consequently, the predominant adsorption structure was identified as the reconstructed armchair edge with two chlorine atoms adsorbed. The desorption process of <sup>36</sup>Cl<sub>2</sub> from the predominant structure following adsorption was simulated, revealing an energy barrier of 1.14 V for desorption. Comparison with experimental results suggests that the chlorine removed from reconstructed armchair edges significantly contributes to the low-temperature removal stage of <sup>36</sup>Cl from irradiated nuclear graphite.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 6","pages":"1619 - 1628"},"PeriodicalIF":5.5,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140372458","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Porous heterostructure of h-BN/carbon as an efficient electrocatalyst for hydrogen peroxide generation h-BN/carbon 多孔异质结构作为生成过氧化氢的高效电催化剂

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-28 DOI: 10.1007/s42823-024-00718-0

Xiang Xu, Yuying Zhao, Qixin Yuan, Yuhan Wu, Jiawei He, Mengmeng Fan

{"title":"Porous heterostructure of h-BN/carbon as an efficient electrocatalyst for hydrogen peroxide generation","authors":"Xiang Xu, Yuying Zhao, Qixin Yuan, Yuhan Wu, Jiawei He, Mengmeng Fan","doi":"10.1007/s42823-024-00718-0","DOIUrl":"10.1007/s42823-024-00718-0","url":null,"abstract":"<div><p>We successfully synthesized a porous carbon material with abundant hexagonal boron nitride (h-BN) dispersed on a carbon matrix (p-BN-C) as efficient electrocatalysts for two-electron oxygen reduction reaction (2e<sup>−</sup> ORR) to produce hydrogen peroxide (H<sub>2</sub>O<sub>2</sub>). This catalyst was fabricated via ball-milling-assisted h-BN exfoliation and subsequent growth of carbon structure. In alkaline solutions, the h-BN/carbon heterostructure exhibited superior electrocatalytic activity for H<sub>2</sub>O<sub>2</sub> generation measured by a rotating ring-disk electrode (RRDE), with a remarkable selectivity of up to 90–97% in the potential range of 0.3–0.6 V vs reversible hydrogen electrode (RHE), superior to most of the reported carbon-based electrocatalysts. Density functional theory (DFT) simulations indicated that the B atoms at the h-BN heterostructure interface were crucial active sites. These results underscore the remarkable catalytic activity of heterostructure and provide a novel approach for tailoring carbon-based catalysts, enhancing the selectivity and activity in the production of H<sub>2</sub>O<sub>2</sub> through heterostructure engineering.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 6","pages":"1629 - 1637"},"PeriodicalIF":5.5,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140372905","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

rGO@Cu2ZnSnS4 chalcopyrites modified polypyrrole paper-based photoanode for solar water splitting 用于太阳能水分离的 rGO@Cu2ZnSnS4 黄铜矿改性聚吡咯纸基光电阳极

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-28 DOI: 10.1007/s42823-024-00708-2

Anupma Thakur, Pooja Devi

{"title":"rGO@Cu2ZnSnS4 chalcopyrites modified polypyrrole paper-based photoanode for solar water splitting","authors":"Anupma Thakur, Pooja Devi","doi":"10.1007/s42823-024-00708-2","DOIUrl":"10.1007/s42823-024-00708-2","url":null,"abstract":"<div><p>Flexible electrodes, particularly paper electrodes modified with polypyrrole, have shown promise in energy-related applications. We have earlier demonstrated the usage of paper electrodes modified with polypyrrole as a flexible and suitable photoanode for photoelectrochemical water splitting (PEC). Further, modification of this electrode system with an appropriate tandem absorber system for solar fuel production is interesting in developing efficient photoanodes. In this study, we study the PEC performance of flexible polypyrrole-based paper photoanodes (PPy-PAs) by decorating them with rGO@Cu<sub>2</sub>ZnSnS<sub>4</sub> chalcopyrites (rGO@CZTS/PPy-PAs). The lower bandgap (~ 1.5 eV) of the rGO@CZTS/PPy-PAs system allows for efficient visible light absorption, substantially improving PEC water-splitting reactions. The rGO@CZTS/PPy-PAs exhibited an enhanced current density of ~ 13.2 mA/cm<sup>2</sup> at 1.23 V vs RHE, ABPE of ~ 1.5%, and a hydrogen evolution rate of 177 μmoles/min/cm<sup>2</sup>. Overall, rGO@CZTS/PPy-PAs showed 2.1-fold, 1.1-fold, and 1.4-fold enhancement in photocurrent activity over PPy-PAs, CZTS/PPy-PAs, and rGO/PPy-PAs, respectively. The usability of rGO@CZTS/PPy-PAs is established in the form of stable photocurrent for more than 200 min. These findings open new possibilities for developing modified PPy PAs as flexible PEs for efficient solar-driven PEC devices and give directions on improving flexible PEs for flexible and efficient solar-driven PEC systems.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 6","pages":"1609 - 1618"},"PeriodicalIF":5.5,"publicationDate":"2024-03-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140369741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Effect of Pt clusters on hydrogen adsorption behaviors of cup-stacked carbon nanotubes: a DFT study 铂团簇对杯状堆叠碳纳米管氢吸附行为的影响：一项 DFT 研究

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-27 DOI: 10.1007/s42823-024-00707-3

Yongxin Wang, Jing Ding, Fengxia Deng, Huanpeng Liu

{"title":"Effect of Pt clusters on hydrogen adsorption behaviors of cup-stacked carbon nanotubes: a DFT study","authors":"Yongxin Wang, Jing Ding, Fengxia Deng, Huanpeng Liu","doi":"10.1007/s42823-024-00707-3","DOIUrl":"10.1007/s42823-024-00707-3","url":null,"abstract":"<div><p>In this paper, the formation and characterization of Pt<sub>2</sub>, Pt<sub>3</sub> as well as Pt<sub>4</sub> atomic clusters in cup-stacked carbon nanotubes (CSCNTs) are evaluated by DFT to examine the adsorption capacity under the clusters. The results show that the Pt clusters move toward the bottom edge or form rings in the optimized stable structure. Pt far from the carbon substrate possesses more active electrons and adsorption advantages. The three clusters can adsorb up to 17, 18, and 16 hydrogen molecules. Loading metal clusters at the bottom edge maintains a relatively good adsorption property despite the low binding energy through comparative studies. The adsorption capacity does not increase with the number of Pt for metal aggregation reducing the hydrogen adsorption area thus impacting the hydrogen storage ability and the aggregation phenomenon limiting the action of Pt metal. During adsorption, chemisorption occurs only in the Pt<sub>2</sub> cluster, while multiple hydrogen molecules achieve physiochemical adsorption in the Pt<sub>3</sub> and Pt<sub>4</sub> clusters. Compared with the atomic loading of the dispersion system in equal quantities, the dispersion system features higher molecular stability and can significantly reduce the energy of the carbon substrates, providing more sites for hydrogen adsorption in space.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 6","pages":"1593 - 1608"},"PeriodicalIF":5.5,"publicationDate":"2024-03-27","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140313387","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Improvement of the electrochemical properties of Li/CFx primary batteries induced by Nitrogen plasma treatment from silica and carbon fluoride 二氧化硅和氟化碳氮等离子处理对锂/CFx 一次电池电化学性能的改善

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-26 DOI: 10.1007/s42823-024-00719-z

Seongmin Ha, Chaehun Lim, Seongjae Myeong, In Woo Lee, Young-Seak Lee

{"title":"Improvement of the electrochemical properties of Li/CFx primary batteries induced by Nitrogen plasma treatment from silica and carbon fluoride","authors":"Seongmin Ha, Chaehun Lim, Seongjae Myeong, In Woo Lee, Young-Seak Lee","doi":"10.1007/s42823-024-00719-z","DOIUrl":"10.1007/s42823-024-00719-z","url":null,"abstract":"<div><p>The electrochemical properties of a CF<sub>X</sub> cathode were improved by defluorination of the surface with a N<sub>2</sub> plasma and using a silica wafer. Compared to the N<sub>2</sub> plasma treatment alone, when the CF<sub>X</sub> and silica were reacted together, the C-F bonds were modified and the surface was etched efficiently, so defluorination was enhanced. An electrochemical analysis confirmed that Half-cells prepared by treating CFx and silica with nitrogen plasma exhibited a capacity of about 400 mAh/g at 5C. In addition, it was confirmed that the loss of charge transfer was reduced by up to 71% compared to that for pristine CF<sub>X</sub>. As shown by a GITT analysis, when the CFx and silica were treated with N<sub>2</sub> plasma together, the ion conductivity gradually increased due to a decrease in the ion diffusion barriers and the formation of a carbon layer. Therefore, this is a simple and effective way to improve the conductivities of CF<sub>X</sub> cathode materials with the energy of a N<sub>2</sub> plasma and the silica-fluorine reaction.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 5","pages":"1521 - 1528"},"PeriodicalIF":5.5,"publicationDate":"2024-03-26","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140302099","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Recycling of polyethylene via hydrothermal carbonization for the Li-ion battery anode 通过水热碳化回收聚乙烯，用于锂离子电池阳极

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-26 DOI: 10.1007/s42823-024-00721-5

Soonhyun Hong, Jahun Ku, Sunhye Park, Jungjin Park, Young-Sang Yu, Chunjoong Kim

引用次数: 0

Customized carbon composite nanomaterials for the mitigation of emerging contaminants: a review of recent trends 用于减缓新兴污染物的定制碳复合纳米材料：最新趋势综述

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-25 DOI: 10.1007/s42823-024-00715-3

S. Balakumar, N. Mahesh, M. Kamaraj, T. Saranya, P. Suresh Babu, J. Aravind, Woong Kim, M. Govarthanan

{"title":"Customized carbon composite nanomaterials for the mitigation of emerging contaminants: a review of recent trends","authors":"S. Balakumar, N. Mahesh, M. Kamaraj, T. Saranya, P. Suresh Babu, J. Aravind, Woong Kim, M. Govarthanan","doi":"10.1007/s42823-024-00715-3","DOIUrl":"10.1007/s42823-024-00715-3","url":null,"abstract":"<div><p>The most significant threat to the ecosystem is emerging pollutants, which are becoming worse each year and harming the planet severely and permanently. Many organic and inorganic contaminants are present and persistent due to various world events and population growth. As a result, there is a greater need for new technology and its application to address the problems caused by developing pollutants. Carbon composite nanomaterials have significant potential in the fight against numerous environmental contaminants due to their distinctive attributes. This review discusses the reports of customized carbon composite nanomaterials to meet the need for specific elimination of emerging contaminants. Physical and chemical features such as high surface area, conductivity (thermal and electrical), and vibroelectronic properties, size, shape, porosity, and composite nature are making these tailored materials of carbon-based nanomaterials an emerging and sustainable tool to remove persistent compounds like emerging contaminants in aqueous solution. Different composite materials are well discussed in this review, along with their adsorption efficiency of diverse emerging contaminants, including Bisphenol A, estradiol, metformin, etc. This review provides insight into the recent trends limited to 2017–2023. The limitations of carbon-based nanomaterials, such as regeneration and cost-effectiveness, have also been overcome in recent years by diverse modifications in the production process, which can be further improved to make these materials well suited for an extended group of emerging contaminants.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 4","pages":"1091 - 1114"},"PeriodicalIF":5.5,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140302027","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Electrophoresis-deposition construction of covalently bonded interface material with enhanced thermal conductivity 电泳沉积构建具有增强导热性能的共价键合界面材料

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-25 DOI: 10.1007/s42823-024-00717-1

Hao Fu, Guang Chen, Junchang Gao, Yadong Wu, Xin Tao, Youguo Huang

{"title":"Electrophoresis-deposition construction of covalently bonded interface material with enhanced thermal conductivity","authors":"Hao Fu, Guang Chen, Junchang Gao, Yadong Wu, Xin Tao, Youguo Huang","doi":"10.1007/s42823-024-00717-1","DOIUrl":"10.1007/s42823-024-00717-1","url":null,"abstract":"<div><p>The thermal conductivity (TC) of graphene-based/metal composites is currently not satisfactory because of the existence of large interfacial thermal resistance between graphene and metal originating from the strong scattering of phonons. In this work, 6063Al-alloy-based reduced graphene oxide (rGO) composite with strong covalent bonds interface was prepared via self-assembly, reduction, and electrophoresis-deposition processes by using 3-aminopropyl triethoxysilane (APTS) as a link agent. Structural characterizations confirmed the successful construction of strong Al-O-Si-O-C covalent bonds in the as-prepared 6063Al-Ag-APTS-rGO composite, which can promote the transfer of phonons in the interface. Benefiting from the unique structure, 6063Al-Ag-APTS-rGO (214.1 W/mK) showed obviously higher cross-plane TC than 6063Al (195.6 W/mK). Comparative experiments showed that 6063Al-Ag-APTS-rGO has better cross-plane TC than 6063Al/Ag/APTS/rGO (196.6 W/mK) prepared via physical mixing of stirring process, evidencing the significance of electrophoresis-deposition (EPD) process on constructing strong covalent bonds for improving the heat dissipation performance. Besides, the effects of different rGO contents and test temperature on the TC of the composites and their corrosion resistance were also discussed. This work demonstrated a feasible strategy for the construction of metal–carbon interface composite with improved thermal performance.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 5","pages":"1507 - 1519"},"PeriodicalIF":5.5,"publicationDate":"2024-03-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140302024","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Exploring hydrogen binding and activation on transition metal-modified circumcoronene 探索过渡金属改性环可龙烯上的氢结合和活化作用

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-18 DOI: 10.1007/s42823-024-00709-1

Simona Müllerová, Michal Malček, Lukas Bucinsky, Maria Natália Dias Soeiro Cordeiro

{"title":"Exploring hydrogen binding and activation on transition metal-modified circumcoronene","authors":"Simona Müllerová, Michal Malček, Lukas Bucinsky, Maria Natália Dias Soeiro Cordeiro","doi":"10.1007/s42823-024-00709-1","DOIUrl":"10.1007/s42823-024-00709-1","url":null,"abstract":"<div><p>Graphene-based materials modified with transition metals, and their potential utilization as hydrogen storage devices, are extensively studied in the last decades. Despite this widespread interest, a comprehensive understanding of the intricate interplay between graphene-based transition metal systems and H<sub>2</sub> molecules remains incomplete. Beyond fundamental H<sub>2</sub> adsorption, the activation of H<sub>2</sub> molecule, crucial for catalytic reactions and hydrogenation processes, may occur on the transition metal center. In this study, binding modes of H<sub>2</sub> molecules on the circumcoronene (CC) decorated with Cr or Fe atoms are investigated using the DFT methods. Side-on (η<sup>2</sup>-dihydrogen bond), end-on and dissociation modes of H<sub>2</sub> binding are explored for high (HS) and low (LS) spin states. Spin state energetics, reaction energies, QTAIM and DOS analysis are considered. Our findings revealed that CC decorated with Cr (CC-Cr) emerges as a promising material for H<sub>2</sub> storage, with the capacity to store up to three H<sub>2</sub> molecules on a single Cr atom. End-on interaction in HS is preferred for the first two H<sub>2</sub> molecules bound to CC-Cr, while the side-on LS is favored for three H<sub>2</sub> molecules. In contrast, CC decorated with Fe (CC-Fe) demonstrates the capability to activate H<sub>2</sub> through H–H bond cleavage, a process unaffected by the presence of other H<sub>2</sub> molecules in the vicinity of the Fe atom, exclusively favoring the HS state. In summary, our study sheds light on the intriguing binding and activation properties of H<sub>2</sub> molecules on graphene-based transition metal systems, offering valuable insights into their potential applications in hydrogen storage and catalysis.</p><h3>Graphical abstract</h3>\u0000<div><figure><div><div><picture><source><img></source></picture></div></div></figure></div></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 5","pages":"1495 - 1506"},"PeriodicalIF":5.5,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://link.springer.com/content/pdf/10.1007/s42823-024-00709-1.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140148867","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Development of cement nanocomposites reinforced by carbon nanotube dispersion using superplasticizers 利用超塑化剂开发碳纳米管分散体增强的水泥纳米复合材料

IF 5.5 3区材料科学

Carbon Letters Pub Date : 2024-03-18 DOI: 10.1007/s42823-024-00714-4

Seok Hwan An, Ki Yun Kim, Chul Woo Chung, Jea Uk Lee

{"title":"Development of cement nanocomposites reinforced by carbon nanotube dispersion using superplasticizers","authors":"Seok Hwan An, Ki Yun Kim, Chul Woo Chung, Jea Uk Lee","doi":"10.1007/s42823-024-00714-4","DOIUrl":"10.1007/s42823-024-00714-4","url":null,"abstract":"<div><p>This paper explores the potential application of carbon nanotubes (CNTs) in the construction industry, as CNTs can effectively serve as nano-fillers, bridging the voids and holes in cement structures. However, the limited dispersibility of CNTs in water necessitates the use of dispersing agents for achieving uniform dispersion. In this study, two kinds of cement superplasticizers, polycarboxylate ether (PCE) and sulfonated naphthalene formaldehyde (SNF) were employed as dispersing agents to improve the interfacial affinity between CNTs and cement, and to enhance the strength of the cement nanocomposites. Contact angle experiments revealed that the utilization of PCE and SNF effectively addressed the interface issues between CNTs and cement. As a result, the cement nanocomposite with a CNT to PCE ratio of 1:2 exhibited an approximately 6.6% increase in compressive strength (73.05 MPa), while the CNT:SNF 1:2 cement composite showed a 4.7% increase (71.72 MPa) compared to plain cement (68.52 MPa). In addition, the rate of crack generation in cement nanocomposites with CNTs and dispersing agents was found to be slower than that of plain cement. The resulting cement nanocomposites, characterized by enhanced strength and durability, can be utilized as safer materials in the construction industry.</p></div>","PeriodicalId":506,"journal":{"name":"Carbon Letters","volume":"34 5","pages":"1481 - 1494"},"PeriodicalIF":5.5,"publicationDate":"2024-03-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140148874","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"材料科学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0