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锂硫电池中CNTs-CNFs夹层对多硫化物的捕获和加速转化机理
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作者 陈磊 袁业辉 +1 位作者 宋瑞 张超 《天津工业大学学报》 CAS 北大核心 2024年第4期44-49,共6页
为有效抑制多硫化锂(LiPSs)的穿梭效应,通过静电纺丝、电化学沉积和化学气相生长技术在碳纳米纤维(CNFs)上垂直生长碳纳米管(CNTs),开发了一种超薄、轻质的多功能三维多层交联碳纳米纤维-碳纳米管(CNTs-CNFs)夹层,并研究CNTs-CNFs对锂... 为有效抑制多硫化锂(LiPSs)的穿梭效应,通过静电纺丝、电化学沉积和化学气相生长技术在碳纳米纤维(CNFs)上垂直生长碳纳米管(CNTs),开发了一种超薄、轻质的多功能三维多层交联碳纳米纤维-碳纳米管(CNTs-CNFs)夹层,并研究CNTs-CNFs对锂硫电池(LSBs)电化学性能的影响。研究结果表明:CNTs-CNFs薄膜优异的导电性和丰富的孔隙结构为LSBs提供了均匀的导电网络和LiPSs的吸附过滤屏障,与无夹层相比,含有CNTs-CNFs夹层的电池具有更优异的容量保持率和循环稳定性,在0.2 C电流密度下具有1296.7 mA·h/g的初始放电比容量,在100次循环后仍能提供了864.7 mA·h/g的放电比容量,容量保持率为66.68%。 展开更多
关键词 多硫化锂(LiPSs) 碳纳米纤维-碳纳米管(cnts-CNFs) 夹层 三维多层交联 锂硫电池(LSBs)
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Carbon nanotube and graphene reinforced magnesium matrix composites:A state-of-the-art review 被引量:2
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作者 Lava Kumar Pillari Kyle Lessoway Lukas Bichler 《Journal of Magnesium and Alloys》 SCIE EI CAS CSCD 2023年第6期1825-1905,共81页
Magnesium(Mg)composites reinforced with carbon-based nanomaterial(CBN)often exhibit low density,enhanced strength,good conductivity,improved wear resistance,and excellent biocompatibility when compared to current indu... Magnesium(Mg)composites reinforced with carbon-based nanomaterial(CBN)often exhibit low density,enhanced strength,good conductivity,improved wear resistance,and excellent biocompatibility when compared to current industry Mg alloys.This review aims to critically evaluate recent developments in Mg-CBN composites and is divided into five sections:First,a brief introduction to Mg-CBN composites is provided,followed by a discussion of different fabrication techniques for these composites,including powder metallurgy,casting,friction stir processing,and selective laser melting.A particular focus is on the current processing challenges,including dispersion strategies to create homogeneous Mg-CBN composites.The effect of processing on the quantifying disorder in CBNs and distinguishing different sp2carbon materials is also highlighted.Then,the effect of CBN on various properties of Mg-CBN composites is thoroughly analyzed,and the strengthening efficiency of CNTs and graphene in the Mg matrix is examined.Finally,the potential applications of Mg-CBN composites in various industries are proposed,followed by a summary and suggestions for future research directions in the field of Mg-CBN composites. 展开更多
关键词 MAGNESIUM Carbon nanotubes(cnts) GRAPHENE Nanocomposites Processing Mechanical properties
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原位生长的CNTs@MoS_(2)杂化物增强水性膨胀型防火涂料的耐火和隔热性能
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作者 王晓明 朱耿增 +7 位作者 金义杰 贾丹 段海涛 詹胜鹏 杨田 凃杰松 章武林 马利欣 《表面技术》 EI CAS CSCD 北大核心 2024年第4期200-210,共11页
目的设计并研制一种耐火和隔热性能突出的水性膨胀型防火涂料。方法以碳纳米管(CNTs)、四水合钼酸铵、十六烷基溴化铵(CTAB)、硫脲为原料,通过简单的一步水热法原位生长出一种新型的CNTs@MoS_(2)杂化物,并采用FT-IR、XRD、拉曼光谱、SE... 目的设计并研制一种耐火和隔热性能突出的水性膨胀型防火涂料。方法以碳纳米管(CNTs)、四水合钼酸铵、十六烷基溴化铵(CTAB)、硫脲为原料,通过简单的一步水热法原位生长出一种新型的CNTs@MoS_(2)杂化物,并采用FT-IR、XRD、拉曼光谱、SEM等手段对复合杂化物进行表征。再将CNTs@MoS_(2)杂化物作为增效剂分散在水性膨胀型防火涂料(CNTs@MoS_(2)/WES)中,通过大板实验和涂层、炭焦层表面分析评价了涂层的耐火和隔热性能。结果与WES(膨胀倍率为3.90)、CNTs/WES涂层(膨胀倍率为6.04)、MoS_(2)/WES涂层(膨胀倍率为4.59)相比,CNTs@MoS_(2)/WES涂层具有最高的膨胀倍率(8.88)。CNTs@MoS_(2)/WES涂层所涂覆的钢板在燃烧40min后背面温度最低(133.3℃),这充分表明该涂层具有优异的隔热性能。结论制备的CNTs@MoS_(2)杂化物表现出稳定的网络交织结构,有效提高了它在涂料中的分散性能。此外,CNTs@MoS_(2)/WES涂层优异的耐火和隔热性能主要归因于:1)CNTs@MoS_(2)/WES涂层及其炭焦层具有更致密和完整的表面,阻隔了热量的传递;2)CNTs的添加增强了炭焦层的致密性,抑制了膨胀过程中产生的气体泄漏,提升了涂层膨胀倍率;3)MoS_(2)提高了膨胀层强度且促进了炭焦层的形成,减少了裂纹和孔隙的产生。 展开更多
关键词 碳纳米管(cnts) 二硫化钼(MoS_(2)) 协同效应 耐火性能 阻燃机理
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Dispersion and Performance Properties of Carbon Nanotubes (CNTs) Based Polymer Composites: A Review 被引量:9
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作者 Bhagwan F. Jogi Mayur Sawant +1 位作者 Madan Kulkarni Prakash K. Brahmankar 《Journal of Encapsulation and Adsorption Sciences》 2012年第4期69-78,共10页
Carbon nanotubes (CNTs) based polymer composites have variety of engineering applications (electromagnetic shielding, antistatic coatings, high-strength low-density corrosion-resistant components, lightweight energy s... Carbon nanotubes (CNTs) based polymer composites have variety of engineering applications (electromagnetic shielding, antistatic coatings, high-strength low-density corrosion-resistant components, lightweight energy storage and many more);due to their excellent mechanical, electrical, chemical, magnetic, etc. properties. In the polymer nanocomposites CNTs are dispersed in the polymeric matrix. However the dispersion may be uniform or may not be uniform. The biggest challenge is the effective dispersion of individual CNTs in the polymer matrices, as CNTs tends to form clusters and bundles due to strong van der Waals’ forces of attraction. The aggregated structure continue until physical (Mechanical) or chemical modification (Encapsulation/surface modification) of CNTs. Few modification methods such as vigorous mixing of the polymers damages CNTs structure, and may hinder their properties. But these problems can be overcome by mechanical or chemical modification of CNTs surfaces. In the chemical modification, the modifier or the long tail surfactant may encapsulate and/or partially wrap the CNTs surfaces. In this review, recent work on CNTs based polymer nanocomposite is carried out with few modifiers/encapsulating agents. Incorporation of CNTs in polymer matrix changes the performance properties such as tensile strength, tensile modulus, elongation at break, toughness, Dynamic mechanical thermal analysis (DMTA), etc. The phase morphology of the composite materials throws light on the properties of CNTs based polymer nanocomposite. Moreover phase morphology may be directly correlated with the behavior of the material, hence reviewed here through transmission electron microscopy (TEM) and scanning electron microscopy (SEM). Furthermore review is also carried out on the non-isothermal crystallization (DSC) and rheology of CNTs polymer nanocomposite. 展开更多
关键词 Carbon nanotubeS (cnts) Encapsulation/Surface Modification Transmission Electron MICROSCOPY (TEM) Mechanical Properties CRYSTALLIZATION
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AuNP@Co_(3)(HITP)_(2)-CNT纳米结构的制备及电化学传感性能
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作者 岳王香 戴灿源 +5 位作者 李京谦 胡珂祺 李轶凡 王文达 徐宏妍 胡杰 《微纳电子技术》 CAS 2024年第6期54-61,共8页
利用一步水热法和化学还原法制备了基于金纳米颗粒负载Co_(3)(HITP)_(2)-碳纳米管(AuNP@Co_(3)(HITP)_(2)-CNT)的纳米复合材料。利用X射线光电子能谱仪(XPS)和扫描电子显微镜(SEM)对其表面微观形貌和元素组成进行表征。构建了前列腺特... 利用一步水热法和化学还原法制备了基于金纳米颗粒负载Co_(3)(HITP)_(2)-碳纳米管(AuNP@Co_(3)(HITP)_(2)-CNT)的纳米复合材料。利用X射线光电子能谱仪(XPS)和扫描电子显微镜(SEM)对其表面微观形貌和元素组成进行表征。构建了前列腺特异性抗原(PSA)/牛血清蛋白(BSA)/PSA抗体(Ab)/AuNP@Co_(3)(HITP)_(2)-CNT/玻碳电极(GCE)电化学免疫传感器,并对PSA进行了检测,用循环伏安法(CV)、差分脉冲伏安法(DPV)和电化学阻抗谱(EIS)对其进行电化学性能分析测试。实验结果表明:基于AuNP@Co_(3)(HITP)_(2)-CNT纳米复合材料的电化学免疫传感器对PSA有较宽的检测范围,可达40 fg/mL~100 ng/mL,同时具有较好的特异性、稳定性和可重复性。 展开更多
关键词 电化学免疫传感器 导电金属有机框架(C-MOF) 纳米结构 碳纳米管(cnt) 金纳米颗粒(AuNP) 前列腺特异性抗原(PSA)
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DFT Study of Physisorption Effect of the Curcumin on CNT(8,0-6) Nanotube for Biological Applications 被引量:1
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作者 SIYAMAK Shahab MASOOME Sheikhi +2 位作者 MEHRNOOSH Khaleghian IRYNA Balakhanava FATEMEH Azarakhshi 《Chinese Journal of Structural Chemistry》 SCIE CAS CSCD 2019年第1期37-52,2,共17页
In the given work the adsorption properties of molecule curcumin((1 E,6 E)-1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione) on CNT(8,0-6) nanotube were investigated by the density functional theory(DFT) in... In the given work the adsorption properties of molecule curcumin((1 E,6 E)-1,7-bis(4-hydroxy-3-methoxyphenyl)-1,6-heptadiene-3,5-dione) on CNT(8,0-6) nanotube were investigated by the density functional theory(DFT) in the solvent water for the first time. The non-bonded interaction effects of compounds curcumin and CNT(8,0-6) nanotube on the electronic properties, UV/Vis spectra, chemical shift tensors and natural charges were determined and discussed. The electronic spectra of the compound curcumin and the complex CNT(8,0-6)/curcumin in the solvent water were calculated by time dependent density functional theory(TD-DFT) for investigation of the maximum wavelength value of molecule Curcumin before and after the non-bonded interaction with the CNT(8,0-6) nanotube and molecular orbitals involved in the formation of absorption spectrum of the complex CNT(8,0-6)/curcumin at maximum wavelength. 展开更多
关键词 cnt(8 0-6)nanotube CURCUMIN DFT INTERACTION PHYSISORPTION
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CNT/乙炔黑复合导电剂对LiNi_(0.5)Co_(0.2)Mn_(0.3)O_(2)的影响
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作者 曹米红 张骞 +1 位作者 李路成 陈军 《电池》 CAS 北大核心 2024年第3期348-353,共6页
为解决乙炔黑单一导电剂自身团聚的问题,采用含碳纳米管(CNT)的导电浆料进行改性。复合后,直径80~100 nm的球形乙炔黑颗粒均匀分散在直径20 nm的CNT表面,比表面积提高至107.96 m^(2)/g。与乙炔黑导电剂电池相比,CNT/乙炔黑电池的电化学... 为解决乙炔黑单一导电剂自身团聚的问题,采用含碳纳米管(CNT)的导电浆料进行改性。复合后,直径80~100 nm的球形乙炔黑颗粒均匀分散在直径20 nm的CNT表面,比表面积提高至107.96 m^(2)/g。与乙炔黑导电剂电池相比,CNT/乙炔黑电池的电化学阻抗更小、CV曲线面积更大,氧化峰和还原峰的电位差较小(0.19 V),以200 mA/g在2.75~4.20 V循环,首次充放电比容量分别为151.8 mAh/g和155.5 mAh/g,首次库仑效率为97.6%。第200次循环的放电比容量为141.9 mAh/g,容量保持率为92.4%。在5.0 C倍率下,CNT/乙炔黑电池的放电比容量为116.9 mAh/g,倍率性能更好。 展开更多
关键词 锂离子电池 三元正极材料 复合导电剂 乙炔黑 碳纳米管(cnt)
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Ag-doped CNT/HAP nanohybrids in a PLLA bone scaffold show significant antibacterial activity
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作者 Cijun Shuai Xiaoxin Shi +3 位作者 Kai Wang Yulong Gu Feng Yang Pei Feng 《Bio-Design and Manufacturing》 SCIE EI CAS CSCD 2024年第2期105-120,共16页
Bacterial infection is a major problem following bone implant surgery.Moreover,poly-l-lactic acid/carbon nanotube/hydroxyapatite(PLLA/CNT/HAP)bone scaffolds possess enhanced mechanical properties and show good bioacti... Bacterial infection is a major problem following bone implant surgery.Moreover,poly-l-lactic acid/carbon nanotube/hydroxyapatite(PLLA/CNT/HAP)bone scaffolds possess enhanced mechanical properties and show good bioactiv-ityregardingbonedefectregeneration.Inthisstudy,wesynthesizedsilver(Ag)-dopedCNT/HAP(CNT/Ag-HAP)nanohybrids via the partial replacing of calcium ions(Ca2+)in the HAP lattice with silver ions(Ag+)using an ion doping technique under hydrothermal conditions.Specifically,the doping process was induced using the special lattice structure of HAP and the abundant surface oxygenic functional groups of CNT,and involved the partial replacement of Ca2+in the HAP lattice by doped Ag+as well as the in situ synthesis of Ag-HAP nanoparticles on CNT in a hydrothermal environment.The result-ing CNT/Ag-HAP nanohybrids were then introduced into a PLLA matrix via laser-based powder bed fusion(PBF-LB)to fabricate PLLA/CNT/Ag-HAP scaffolds that showed sustained antibacterial activity.We then found that Ag+,which pos-sesses broad-spectrum antibacterial activity,endowed PLLA/CNT/Ag-HAP scaffolds with this activity,with an antibacterial effectiveness of 92.65%.This antibacterial effect is due to the powerful effect of Ag+against bacterial structure and genetic material,as well as the physical destruction of bacterial structures due to the sharp edge structure of CNT.In addition,the scaffold possessed enhanced mechanical properties,showing tensile and compressive strengths of 8.49 MPa and 19.72 MPa,respectively.Finally,the scaffold also exhibited good bioactivity and cytocompatibility,including the ability to form apatite layers and to promote the adhesion and proliferation of human osteoblast-like cells(MG63 cells). 展开更多
关键词 Ag-doped Carbon nanotube/hydroxyapatite(cnt/HAP) Antibacterial properties Bone scaffold
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Effects of Orientation of Carbon Nanotubes on CNT Bundle Based Silk Composite Using Finite Element Method
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作者 Md Shihamul Islam Jerzy Szpunar 《Modeling and Numerical Simulation of Material Science》 2013年第1期33-38,共6页
Carbon Nanotubes (CNTs) have exceptional mechanical properties. They are the stiffest and strongest material, yet discovered, because of their high length to diameter ratio. In this paper a Representative Volume Eleme... Carbon Nanotubes (CNTs) have exceptional mechanical properties. They are the stiffest and strongest material, yet discovered, because of their high length to diameter ratio. In this paper a Representative Volume Element (RVE) model of CNT-silk composite is made. Then the orientations of the CNTs in the composite are varied and the effects of this variation are observed. The change is mainly observed between the interfaces of CNT and silk. Also there is a change in Young’s Modulus. COMSOL Multiphysics 4.2a is used for building model and performing simulations. 展开更多
关键词 Carbon nanotubeS (cnts) Orientation Interface Young’s MODULUS RVE FEM COMSOL MULTIPHYSICS 4.2a
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Study on Low-Temperature Properties of the Asphalt Modified by Carbon Nanotubes(CNTs)and Crumb Rubber(CR)
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作者 Liu Yumei Zheng Mulian +3 位作者 Liu Xia Wang Chongtao Cheng Yong Wang Ke 《China Petroleum Processing & Petrochemical Technology》 SCIE CAS 2022年第1期36-47,共12页
The effect of adding crumb rubber(CR)and carbon nanotubes(CNTs)on the low-temperature properties of virgin asphalt was studied.Using the force-ductility test and the bending beam rheometer(BBR)test,the deformation res... The effect of adding crumb rubber(CR)and carbon nanotubes(CNTs)on the low-temperature properties of virgin asphalt was studied.Using the force-ductility test and the bending beam rheometer(BBR)test,the deformation resistance and rheological properties of asphalt samples at low temperatures were evaluated,respectively.Based on the result of BBR test,the creep functions of the Burgers model and the Zener model were used to fit the low-temperature creep characteristics of the asphalt samples.Furthermore,the differential scanning calorimetry(DSC)test and the attenuated total reflection-Fourier transform infrared spectroscopy(ATR-FTIR)test were utilized to appraise the low-temperature stability and chemical properties of asphalt samples,respectively.The results showed that CR significantly improved the low-temperature properties of virgin asphalt,while CNTs had little effect.Moreover,during the degradation of CR,aromatic and aliphatic components were released.In particular,the aliphatic components of CR-modified asphalt were much higher than those of virgin asphalt,which had a significant effect on improving the low-temperature properties of the asphalt.The DSC test results showed that CR enhanced the low-temperature stability of the asphalt,while the addition of CNTs presented a slightly negative effect. 展开更多
关键词 low-temperature properties crumb rubber(CR) carbon nanotubes(cnts) creep characteristic asphalt components
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定位夹具对CNTs/6061Al复合材料超声波焊接接头质量影响研究
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作者 熊志林 谭范文 陈湘 《湖南工业职业技术学院学报》 2024年第2期1-5,共5页
采用超声波焊接制备CNTs增强铝基复合材料,针对超声波焊接定位不准,接头搭接面不贴合等问题,基于定位夹具以保证焊接过程质量,在工艺参数组合焊接能量500J,焊接压力0.45MPa,焊接振幅35μm下进行焊接试验。利用扫描电镜(SEM)、能谱仪(EDS... 采用超声波焊接制备CNTs增强铝基复合材料,针对超声波焊接定位不准,接头搭接面不贴合等问题,基于定位夹具以保证焊接过程质量,在工艺参数组合焊接能量500J,焊接压力0.45MPa,焊接振幅35μm下进行焊接试验。利用扫描电镜(SEM)、能谱仪(EDS)等对接头界面组织和成分进行了研究,并对焊接接头进行了剪切力和硬度测试。结果表明:在定位夹具下焊接的接头界面发生明显塑性且CNTs在铝基体扩散较好,接头强度显著提升,剪切力平均值达到786.55N、硬度为72HV,本研究对现有的有色金属超声波焊接制造工艺提出一种新的解决思路和方案,具有一定的工程应用价值和经济效益。 展开更多
关键词 超声波焊接 定位夹具 碳纳米管 铝基复合材料 接头强度
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锰基金属有机骨架复合CNT电极的制备及其储锂性能
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作者 王亚清 苏芸 +2 位作者 李娜 都玲玲 王斌 《微纳电子技术》 CAS 2024年第9期11-17,共7页
为了制备出高性能的锂离子电池负极材料,以1,4-二氰基苯、碳纳米管(CNT)和氯化锰为原料,通过溶剂热法成功合成了一种新型锰基金属有机框架复合碳纳米管(Mn-MOF/CNT)材料。通过扫描/透射电子显微镜(SEM/TEM)、X射线衍射仪(XRD)和比表面... 为了制备出高性能的锂离子电池负极材料,以1,4-二氰基苯、碳纳米管(CNT)和氯化锰为原料,通过溶剂热法成功合成了一种新型锰基金属有机框架复合碳纳米管(Mn-MOF/CNT)材料。通过扫描/透射电子显微镜(SEM/TEM)、X射线衍射仪(XRD)和比表面积分析仪研究了Mn-MOF/CNT的结构和形貌。将Mn-MOF/CNT用作锂离子电池负极材料,表现出较好的储锂性能。Mn-MOF/CNT负极材料在0.1 A·g^(-1)的电流密度下,首圈循环的充电比容量达到1143 mA·h·g^(-1),经过100圈循环后,充电比容量还能保持787 mA·h·g^(-1)。同时,Mn-MOF/CNT负极材料展现出了优异的倍率性能,经过10 A·g^(-1)的大电流密度循环后,电流密度再恢复到0.1 A·g^(-1)时,其充电比容量仍然可以恢复到729 mA·h·g^(-1)。因此该新型Mn-MOF/CNT负极材料具有潜在的商业化前景。 展开更多
关键词 负极材料 锂离子电池 锰基金属有机骨架(Mn-MOF) 电化学性能 碳纳米管(cnt)
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Preparation and characterization of new photocatalyst combined MWCNTs with TiO_2 nanotubes
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作者 朱志平 黄可龙 周艺 《中国有色金属学会会刊:英文版》 CSCD 2007年第A02期1117-1121,共5页
A new type of photocatalysts MWCNTs/TiO2-NTs nanocomposites prepared by combining multi-walled carbon nanotube(MWCNTs) with TiO2-derived nanotubes were synthesized by a modified hydrothermal method. The SEM,XRD,UV-Vis... A new type of photocatalysts MWCNTs/TiO2-NTs nanocomposites prepared by combining multi-walled carbon nanotube(MWCNTs) with TiO2-derived nanotubes were synthesized by a modified hydrothermal method. The SEM,XRD,UV-Vis and TG-DTG were used to characterize its property. The produced MWCNTs/TiO2-NTs nanocomposites were used as the catalysts for photo-degradation of aquatic humic substances,Their photocatalytic efficiency was evaluated by the photodegradation of humic acid in an aqueous solution under ultraviolet light irradiation. The results show MWCNTs could enhance the activity of the photocatalysts;the best degradation efficiency was obtained by using MWCNTs/TiO2-NTs nanocomposites containing 20% MWCNTs as the photo-catalyst. 展开更多
关键词 碳纳米管 二氧化钛纳米管 光催化剂 腐殖酸 催化活性
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Impacts of Parameter Scaling for Low-Power Applications Using CNTFET (Carbon Nanotube Field Effect Transistor) Models: A Comparative Assessment
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作者 Atheer Al-Shaggah Abdoul Rjoub Mohammed Khasawneh 《Journal of Energy and Power Engineering》 2014年第6期1142-1152,共11页
This paper provides an extension to the earlier work wherein a comparison between different models that had studied the effects of several parameters scaling on the performance of carbon nano tube field-effect transis... This paper provides an extension to the earlier work wherein a comparison between different models that had studied the effects of several parameters scaling on the performance of carbon nano tube field-effect transistors was presented. The evaluation for the studied models, with regard to the scaling effects, was to determine those which best reflect the very essence of carbon nano-tube technologies. Whereas the models subject this comparison (Fettoy, Roy, Stanford, and Southampton) were affected to varying degrees due to such parametric variations, the Stanford model was shown as still being valid for a wide range of chiralities and diameter sizes; a model that is also applicable for circuit simulations. In this paper, we present a comparative assessment of the various models subject to the study with regard to the effect of incorporating multiple carbon nanotubes in the channel region. We also assess the effect of oxide thickness on transistor performance in terms of the supply voltage threshold effects. Results leveraging our findings in this ongoing research endeavor reveal that many research efforts were not efficient to high degree due to high delay and not valid for circuit simulations. 展开更多
关键词 Ballistic effects cnt (carbon nanotubes) CNFET (carbon nanotube field-effect transistor) energy-saving technologies low-power applications compact modeling SPICE simulations.
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An Overview of Carbon Nanotubes and Graphene for Biosensing Applications 被引量:8
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作者 Zanzan Zhu 《Nano-Micro Letters》 SCIE EI CAS 2017年第3期3-26,共24页
With the development of carbon nanomaterials in recent years, there has been an explosion of interests in using carbon nanotubes(CNTs) and graphene for developing new biosensors. It is believed that employing CNTs and... With the development of carbon nanomaterials in recent years, there has been an explosion of interests in using carbon nanotubes(CNTs) and graphene for developing new biosensors. It is believed that employing CNTs and graphene as sensor components can make sensors more reliable, accurate, and fast due to their remarkable properties. Depending on the types of target molecular, different strategies can be applied to design sensor device. This review article summarized the important progress in developing CNT-and graphene-based electrochemical biosensors, field-effect transistor biosensors, and optical biosensors. Although CNTs and graphene have led to some groundbreaking discoveries, challenges are still remained and the state-of-the-art sensors are far from a practical application. As a conclusion, future effort has to be made through an interdisciplinary platform, including materials science, biology, and electric engineering. 展开更多
关键词 BIOSENSOR Carbon nanotubes(cnts) GRAPHENE
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Carbon nanotubes:Evaluation of toxicity at biointerfaces 被引量:4
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作者 Debashish Mohanta Soma Patnaik +1 位作者 Sanchit Sood Nilanjan Das 《Journal of Pharmaceutical Analysis》 SCIE CAS CSCD 2019年第5期293-300,共8页
Carbon nanotubes (CNTs) are a class of carbon allotropes with interesting properties that make them productive materials for usage in various disciplines of nanotechnology such as in electronics equipments, optics and... Carbon nanotubes (CNTs) are a class of carbon allotropes with interesting properties that make them productive materials for usage in various disciplines of nanotechnology such as in electronics equipments, optics and therapeutics. They exhibit distinguished properties viz., strength, and high electrical and heat conductivity. Their uniqueness can be attributed due to the bonding pattern present between the atoms which are very strong and also exhibit high extreme aspect ratios. CNTs are classified as singlewalled carbon nanotubes (SWCNTs) and multi-walled carbon nanotubes (MWCNTs) on the basis of number of sidewalls present and the way they are arranged spatially. Application of CNTs to improve the performance of many products, especially in healthcare, has led to an occupational and public exposure to these nanomaterials. Hence, it becomes a major concern to analyze the issues pertaining to the toxicity of CNTs and find the best suitable ways to counter those challenges. This review summarizes the toxicity issues of CNTs in vitro and in vivo in different organ systems (bio interphases) of the body that result in cellular toxicity. 展开更多
关键词 Bio INTERPHASES Carbon nanotubeS (cnts) In VIVO TOXICITY In VITRO TOXICITY
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Dispersion of multiwalled carbon nanotubes in aluminum powders 被引量:3
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作者 Deng Chunfeng Zhang Peng +2 位作者 Ma Yanxia Zhang Xuexi Wang Dezun 《Rare Metals》 SCIE EI CAS CSCD 2009年第2期175-180,共6页
Multiwalled carbon nanotubes (MWNTs) were treated with the reflux within the concentrated nitric acid for 0-25 h to purify and disperse the tangled MWNTs. The effect of reflux time on the morphology and the weight los... Multiwalled carbon nanotubes (MWNTs) were treated with the reflux within the concentrated nitric acid for 0-25 h to purify and disperse the tangled MWNTs. The effect of reflux time on the morphology and the weight loss of MWNTs were investigated. Meanwhile,the dispersion of MWNTs with 0-2.0 wt.% in 2024Al powders using mechanical stirring with an assisting ultrasonic shaker in ethanol was also studied. The results show that the reflux time markedly affects the morphology of MWNTs. The weight loss of MWNTs i... 展开更多
关键词 metal matrix composite powder processing reflux treatment carbon nanotubes cnts)
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Simple method to rapidly fabricate chain-like carbon nanotube films and its field emission properties 被引量:2
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作者 Zhi-yuan Wu Shuang-qi Hu Zhi-qian Wang 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2010年第3期371-375,共5页
A simple process to fabricate chain-like carbon nanotube (CNT) films by microwave plasma-enhanced chemical vapor deposition (MPCVD) was developed successfully. Prior to deposition, the Ti/Al2O3 substrates were gro... A simple process to fabricate chain-like carbon nanotube (CNT) films by microwave plasma-enhanced chemical vapor deposition (MPCVD) was developed successfully. Prior to deposition, the Ti/Al2O3 substrates were ground with Fe-doped SiO2 powder. The nano-structure of the deposited films was analyzed by scanning electron microscopy (SEM), transmission electron microscopy (TEM), and Raman spectroscopy. The field electron emission characteristics of the chain-like carbon nanotube films were measured under the vacuum of 10-5 Pa. The low turn-on field of 0.80 V/μm and the emission current density of 8.5 mA/cm2 at the electric field of 3.0 V/μm are obtained. Based on the above results, chain-like carbon nanotube films probably have important applications in cold cathode materials and electrode materials. 展开更多
关键词 carbon nanotube cnt CHAIN-LIKE film microwave plasma-enhanced chemical vapor deposition (MPCVD) field emission
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Effect of carbon nanotube and silicon carbide on microstructure and dry sliding wear behavior of copper hybrid nanocomposites 被引量:1
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作者 H.M.MALLIKARJUNA C.S.RAMESH +2 位作者 P.G.KOPPAD R.KESHAVAMURTHY K.T.KASHYAP 《Transactions of Nonferrous Metals Society of China》 SCIE EI CAS CSCD 2016年第12期3170-3182,共13页
Microstructure and tribological properties of copper-based hybrid nanocomposites reinforced with copper coatedmultiwalled carbon nanotubes (MWCNTs) and silicon carbide (SiC) were studied. Carbon nanotube was varied fr... Microstructure and tribological properties of copper-based hybrid nanocomposites reinforced with copper coatedmultiwalled carbon nanotubes (MWCNTs) and silicon carbide (SiC) were studied. Carbon nanotube was varied from 1% to 4% withsilicon carbide content being fixed at 4%. The synthesis of copper hybrid nanocomposites involves ball milling, cold pressing andsintering followed by hot pressing. The developed hybrid nanocomposites were subjected to density, grain size, and hardness tests.The tribological performances of the nanocomposites were assessed by carrying out dry sliding wear tests using pin-on-steel disctribometer at different loads. A significant decrease in grain size was observed for the developed hybrid composites when comparedwith pure copper. An improvement of 80% in the micro-hardness of the hybrid nanocomposite has been recorded for 4% carbonnanotubes reinforced hybrid composites when compared with pure copper. An increase in content of CNTs in the hybridnanocomposites results in lowering of the friction coefficient and wear rates of hybrid nanocomposites. 展开更多
关键词 COPPER carbon nanotubes (cnts) SiC MICROHARDNESS wear mechanisms NANOCOMPOSITE
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Electroless plating Ni-P matrix composite coating reinforced by carbon nanotubes 被引量:3
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作者 邓福铭 陈小华 +1 位作者 陈卫祥 李文铸 《中国有色金属学会会刊:英文版》 CSCD 2004年第4期681-685,共5页
Ni-P matrix composite coating reinforced by carbon nanotubes (CNTs) was deposit ed by electroless plating. The most important factors that influence the content of carbon nanotubes in deposits,such as agitation,surfac... Ni-P matrix composite coating reinforced by carbon nanotubes (CNTs) was deposit ed by electroless plating. The most important factors that influence the content of carbon nanotubes in deposits,such as agitation,surfactant and carbon nanot ubes concentration in the plating bath were investigated. The surface morphology,structure and properties of the Ni-P-CNTs coating were examined. It is found that the maximum content of carbon nanotubes in the deposits is independent of carbon nanotubes concentration in the plating bath when it is up to 5 mg/L. The test results show that the carbon nanotubes co-deposited do not change the str ucture of the Ni-P matrix of the composite coating,but greatly increase the ha rdness and wear resistance and decrease the friction coefficient of the Ni-P-C NTs composite coating with increasing content of carbon nanotubes in deposits. 展开更多
关键词 NI-P合金 化学镀 碳纳米管 复合涂层 摩擦 磨损
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