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The ultra-low intershell shear strength in carbon nanotubes (CNTs) has been the primary obstacle to applications of CNTs as mechanical reinforcements. In this paper we propose a new CNT-system composed of comprising of coaxial cylindrical…

Materials Science · Physics 2009-03-12 Zhiping Xu , Lifeng Wang , Quanshui Zheng

Carbon nanotube (CNT)-reinforced nickel matrix composites with different concentrations were processed by high pressure torsion (HPT). We thoroughly characterized the CNT agglomerates' spatial arrangement at different stages of deformation…

Polymeric membranes, including Polysulfone (PSf) membranes, are routinely used for water treatment. It is known for quite some time that water permeability of above membranes can be improved if one incorporates carbon nanotubes…

Applied Physics · Physics 2021-05-24 Bhakti Hirani , P. S. Goyal

We report on the complexation between charged-neutral block copolymers and oppositely charged surfactants studied by small-angle neutron scattering. Two block copolymers/surfactant systems are investigated, poly(acrylic…

Soft Condensed Matter · Physics 2007-05-23 Jean-Francois Berret

Chemical functionalization of nanocarbons is an important strategy to produce electrochemical systems with higher energy/power density by generating surface functional groups with additional faradaic contribution, by increasing their…

Applied Physics · Physics 2020-08-13 Evgeny Senokosa , Moumita Ranaa , Cleis Santosa , Rebeca Marcilla , Juan J. Vilatela

We present results of extensive theoretical studies concerning stability, morphology, and band structure of single wall carbon nanotubes (CNTs) covalently functionalized by -CHn(for n=2,3,4),-NHn(for n=1,2,3,4),-COOH and -OH groups. Our…

Mesoscale and Nanoscale Physics · Physics 2013-05-31 Karolina Z. Milowska , Jacek A. Majewski

Carbon nanotubes (CNTs) are stiff, all-carbon macromolecules with diameters as small as one nanometer and few microns long. Solutions of CNTs in chlorosulfonic acid (CSA) follow the phase behavior of rigid rod polymers interacting via a…

Although individual carbon nanotubes (CNTs) are superior as constituents to polymer chains, the mechanical and thermal properties of CNT fibers (CNTFs) remain inferior to commercial synthetic fibers due to the lack of synthesis methods to…

High performance nanocomposites require well dispersion and high alignment of the nanometer-sized components, at a high mass or volume fraction as well. However, the road towards such composite structure is severely hindered due to the easy…

Materials Science · Physics 2015-06-24 Yue Han , Xiaohua Zhang , Xueping Yu , Jingna Zhao , Shan Li , Feng Liu , Peng Gao , Yongyi Zhang , Tong Zhao , Qingwen Li

Polymeric membranes, including Polysulfone (PSf) membranes, are routinely used for water treatment. To enhance water permeation of above membranes, it is common to synthesize polymeric membranes with carbon nanotubes (CNTs) embedded in…

Materials Science · Physics 2022-01-14 Bhakti Hirani , P. S. Goyal , Deepali Shrivastava , S. K. Deshpande

The unique surface properties of amphiphilic molecules have made them widely used in applications where foaming, emulsifying or coating processes are needed. Novel surfactant architectures with multi-cephalic and multi-tailed molecules have…

Soft Condensed Matter · Physics 2015-09-15 Seth Heerschap , John N. Marafino , Kristin McKenna , Kevin L. Caran , Klebert Feitosa

The attachment of well-defined charge transfer agents to the surface of nanomaterials is an efficient strategy to control their charge density and also to tune their optical, electrical, and physicochemical properties. Particularly…

The binding of a cationic surfactant (hexadecyltrimethylammonium bromide, CTAB) to a negatively charged natural polysaccharide (pectin) at air-solution interfaces, was investigated on single interfaces and in foams, versus the linear charge…

Soft Condensed Matter · Physics 2010-05-20 Marie-Hélène M. H. Ropers , Bruno Novales , François Boué , Monique A. V. Axelos

The microstructure and electrical conductivity of suspensions of multi-walled carbon nanotubes (MWCNTs) in binary liquid mixtures water-1-Cyclohexyl-2-pyrrolidone (CHP) were studied in the heating and cooling cycles. The concentration of…

Mesoscale and Nanoscale Physics · Physics 2013-04-23 O. Deriabina , N. Lebovka , L. Bulavin , A. Goncharuk

An amphiphilic nature of the surfactant-like peptides is responsible for their propensity to aggregate at the nanoscale. These peptides can be readily used for a non-covalent functionalization of nanoparticles and macromolecules. This work…

Materials Science · Physics 2015-10-28 Vitaly V. Chaban , Andre Arruda , Eudes Eterno Fileti

Short fiber reinforced polymer composites have found extensive industrial and engineering applications owing to their unique combination of low cost, relatively easy processing and superior mechanical properties compared to their parent…

Computational Physics · Physics 2017-04-06 Atiyeh Alsadat Mousavi , Behrouz Arash , Xiaoying Zhuang , Timon Rabczuk

Carbon Nanotubes (CNTs) of sufficiently large diameter and a few layers self-collapse into flat ribbons at atmospheric pressure, forming bundles of stacked CNTs that maximize packing and thus CNT interaction. Their improved stress transfer…

The interaction strength of molecular hydrogen and water to carbon nanomaterials is relevant to, among many applications, hydrogen storage, water treatment, and water flow. However, accurate interaction energies for hydrogen and water with…

Materials Science · Physics 2017-04-05 Yasmine S. Al-Hamdani , Dario Alfè , Angelos Michaelides

The inclusion and encapsulation of terthiophene (T3) molecules inside zigzag single-walled carbon nanotubes (CNTs) is addressed by density functional calculations. We consider the T3 molecule inside five semiconducting CNTs with diameters…

Materials Science · Physics 2009-11-11 W. Orellana , S. O. Vasquez

Carbon nanotube fibers are materials with an exceptional combination of properties, including higher toughness than carbon fibers, electrical conductivity above metals, large specific surface area (250 $\frac{m^2}{g}$) and high…

Applied Physics · Physics 2019-02-20 Belén Alemán , María Vila , Juan J. Vilatela