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Among a variety of solution-based approaches to fabricate anisotropic films of aligned carbon nanotubes (CNTs), we focus on the dielectrophoretic assembly method using AC electric fields in DNA-stabilized CNT suspensions. We demonstrate…

软凝聚态物质 · 物理学 2015-07-22 Hiroshi Frusawa , Gen Yoshii

Burning fossil fuels emits a significant amount of CO2, causing climate change concerns. CO2 Capture and Storage (CCS) aims to reduce emissions, with fullerenes showing promise as CO2 adsorbents. Recent research focuses on modifying…

Spontaneous entry of water molecules inside single-wall carbon nanotubes (SWCNTs) has been confirmed by both simulations and experiments. Using molecular dynamics simulations, we have studied the thermodynamics of filling of a (6,6) carbon…

介观与纳米尺度物理 · 物理学 2015-01-27 Hemant Kumar , Chandan Dasgupta , Prabal K. Maiti

Porous graphene structures, also termed graphene nanomeshes (GNMs), are garnering increasing interest due to their potential application to important technologies such as chemical sensing, ion-filtration, and nanoelectronics. Semiconducting…

材料科学 · 物理学 2022-07-01 Mohamed S. Eldeeb , Mohamed M. Fadlallah , Glenn J. Martyna , Ahmed A. Maarouf

We use space-charge (SC) theory (also called the capillary pore model) to describe the ionic conductance, $G$, of charged carbon nanotubes (CNTs). Based on the reversible adsorption of hydroxyl ions to CNT pore walls, we use a Langmuir…

化学物理 · 物理学 2019-12-24 P. M. Biesheuvel , M. Z. Bazant

We have taken advantage of the native surface roughness and the iron content of AISI 316 stainless steel to direct grow multi-walled carbon nanotube (MWCNT) random networks by chemical vapor deposition (CVD) at low-temperature ($<…

Porous nanomaterials have recently attracted a lot of attention due to various properties and potential applications. In this study, carbon nanoparticles (CNPs) were synthesized by the one-pot hydrothermal carbonization (HTC) using…

生物大分子 · 定量生物学 2025-07-25 Mohaddeseh Sharifi , S. Hajir Bahrami

We report a first principles systematic study of atomic, electronic, and magnetic properties of hydrogen saturated silicon nanowires (H-SiNW) which are doped by transition metal (TM) atoms placed at various interstitial sites. Our results…

材料科学 · 物理学 2012-04-25 E. Durgun , D. I. Bilc , S. Ciraci , Ph. Ghosez

Vertically-aligned carbon nanotube (CNT) "forest" microstructures fabricated by chemical vapor deposition (CVD) using patterned catalyst films typically have a low CNT density per unit area. As a result, CNT forests have poor bulk…

材料科学 · 物理学 2015-05-19 Michael De Volder , Sei Jin Park , Sameh H. Tawfick , Daniel O. Vidaud , A. John Hart

Carbon nanotubes play a fundamental role in the rapidly developing field of nanoscience and nanotechnology because of their unique properties and high potential applictions. In this article, the different synthesis method of CNTs are…

材料科学 · 物理学 2007-05-23 Kalpana Awasthi , Anchal Srivastava , O. N. Srivastava

The development of safe, efficient, and reversible hydrogen storage materials is critical for advancing hydrogen-based energy technologies and achieving carbon-neutral goals. Ennea-Graphene, a new 2D carbon allotrope made of 4-, 5-, 6-, and…

We report the results of \textit{ab initio} simulations of the electronic properties of a chain of C$_{60}$ molecules encapsulated in a boron nitride nanotube - so called BN-nanopeapod. It is demonstrated that this structure can be…

介观与纳米尺度物理 · 物理学 2012-12-07 Vladimir Timoshevskii , Michel Cote

Water confinement inside a carbon nanotube (CNT) has been one of the most exciting subjects of both experimental and theoretical interest. Most of the previous studies, however, considered CNT structures with simple cylindrical shapes. In…

介观与纳米尺度物理 · 物理学 2020-02-03 Taehoon Kim , Gwan Woo Kim , Hyunah Jeong , Gunn Kim , Soonmin Jang

Macroscopic ensembles of nanocarbons, such as fibres of carbon nanotubes (CNT), are characterised by a complex hierarchical structure combining coherent crystalline regions with a large porosity arising from imperfect packing of the large…

In the present work, different synthesis procedures have been demonstrated to fill carbon nanotubes (CNTs) with $\mathrm{Fe}_{1-x}\mathrm{Ni}_x$ alloy nanoparticles (x = 0.33, 0.5). CNTs act as templates for the encapsulation of magnetic…

We investigated the influence of doping antiferromagnetic MnN in polycrystalline MnN/CoFe exchange bias systems, showing high exchange bias of up to 1800 Oe at room temperature. The thermal stability of those systems is limited by nitrogen…

材料科学 · 物理学 2021-12-08 Mareike Dunz , Björn Büker , Markus Meinert

Crystalline Si substrates are doped by laser annealing of solution processed Si. For this experiment, dispersions of highly B-doped Si nanoparticles (NPs) are deposited onto intrinsic Si and laser processed using an 807.5nm cw-laser. During…

PMMA and Poly carbonate (PC) are wonderful low cost materials which can be easily tailored and shaped. However they have poor mechanical, thermal and electrical properties which are required to be enhanced in several applications where…

介观与纳米尺度物理 · 物理学 2015-04-29 Rajiv Bhandari , Neha Dhiman , Chetna Bajaj , Prashant Jindal , Keya Dharamvir , V. K. Jindal

The atomistic simulations of carbon nanotube (CNT) - carbon reinforced composite material are reported. The studied composite samples were obtained by impregnating certain amounts of CNTs (3,3) and (6,6) into pristine graphite matrix. The…

材料科学 · 物理学 2011-03-14 Vitaly Chaban

We use classical molecular dynamics simulations to study the collapse of single (SWNT) and double-walled (DWNT) carbon nanotube bundles under hydrostatic pressure. The collapse pressure (pc) varies as 1/R^3, where R is the SWNT radius or…

其他凝聚态物理 · 物理学 2009-11-11 Vikram Gadagkar , Prabal K. Maiti , Yves Lansac , A. Jagota , A. K. Sood