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Related papers: Designing an All-Carbon Membrane for Water Desalin…

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Due to its ultrahigh electron transmissivity in a wide electron energy range, molecular impermeability, high electrical conductivity and excellent mechanical stiffness the suspended graphene membranes appear to be a nearly ideal window…

Materials Science · Physics 2015-06-11 Joshua D. Stoll , Andrei Kolmakov

In nanoscale, motion operation of a nano-objective is usually realized by displacement load, which put forwards high requirement for ductility of material. Since pristine graphene has low ductility, once the stretching strain exceeds its…

Computational Physics · Physics 2020-09-01 Jiao Shi , Jia-Long Zhang , Xin Li , Bo Song

Nanoscale materials are a promising desalination technology. While fast water flow in nanotubes is well understood, this is not the case for water permeability in single-layer membranes. The physical-chemical balance between nanopore size,…

Soft Condensed Matter · Physics 2020-12-15 João P. K. Abal , Marcia C. Barbosa

We propose carbon as new resistive memory material for non-volatile memories and compare three allotropes of carbon, namely carbon nanotubes, graphene-like conductive carbon and insulating carbon for their possible application as…

A mild annealing procedure was recently proposed for the scalable enhancement of graphene oxide (GO) properties with the oxygen content preserved, which was demonstrated to be attributed to the thermally driven phase separation. In this…

Chemical Physics · Physics 2015-02-10 Pengzhan Sun , Yanlei Wang , He Liu , Kunlin Wang , Dehai Wu , Zhiping Xu , Hongwei Zhu

The performance of graphene oxide(GO)-based materials strongly depends on the lateral size and size distribution of GO nanosheets. Various methods are employed to prepare GO nanosheets with a narrow size distribution. One of the promising…

Soft Condensed Matter · Physics 2019-03-26 Xin Xu , Luofu Liu , Hongya Geng , Jianjun Wang , Jiajia Zhou , Ying Jiang , Masao Doi

With superior optical properties, high flexibility in engineering its material properties, and strong capability for large-scale on-chip integration, graphene oxide (GO) is an attractive solution for on-chip integration of two-dimensional…

Optics · Physics 2021-02-16 Jiayang Wu , Linnan Jia , Yuning Zhang , Yang Qu , Baohua Jia , David J. Moss

Hydrogen isotope separation has been effectively achieved using gaseous H2/D2 filtered through graphene/Nafion composite membranes. Nevertheless, deuteron nearly does not exist in the form of gaseous D2 in nature but in liquid water. Thus,…

Most recently, boron-graphdiyne, a {\pi}-conjugated two-dimensional (2D) structure made from merely sp carbon skeleton connected with boron atoms was successfully experimentally realized through a bottom-to-up synthetic strategy. Motivated…

Computational Physics · Physics 2018-05-14 Bohayra Mortazavi , Masoud Shahrokhi , Xiaoying Zhuang , Timon Rabczuk

Understanding the adsorption of water and characterizing the water film formed within nanostructures are essential for advancements in fields such as nanofluidics, water purification, and biosensing devices. In our research, we focus on…

Super capacitors are promising energy storage devices due to their capability of delivering high peak current and storing high amount of energy in a short time with very low internal power loss. We fabricated the graphene or graphite oxide…

Mesoscale and Nanoscale Physics · Physics 2014-09-24 Gladson Joseph , A. Alfred Kirubaraj , U. Satheesh , D. Devaprakasam

Recently, it was proposed that graphene membranes could act as impermeable atomic structures to standard gases. For some other applications, a higher level of porosity is needed, and the so-called Porous Graphene (PG) and Biphenylene Carbon…

Mesoscale and Nanoscale Physics · Physics 2019-06-05 G. Brunetto , D. S. Galvao

We propose an experimentally viable setup for the realization of one-dimensional ultracold atom gases in a nanoscale magnetic waveguide formed by single doubly-clamped suspended carbon nanotubes. We show that all common decoherence and atom…

Quantum Physics · Physics 2007-05-23 V. Peano , M. Thorwart , A. Kasper , R. Egger

Graphene oxide finds applications in different fields of science, including energy conversion. Electrochemical reduction of graphene oxide (GO) significantly improves its conductivity. However, the kinetics of this process depends on the…

Graphene is considered one of the most promising materials for future electronic. However, in its pristine form graphene is a gapless material, which imposes limitations to its use in some electronic applications. In order to solve this…

Materials Science · Physics 2012-06-27 G. Brunetto , P. A. S. Autreto , L. D. Machado , B. I. Santos , R. P. B. dos Santos , D. S. Galvão

Graphene oxide (GO) is one of chemically modified graphenes and has been extensively studied worldwide. A monolayer sheet of GO which is chemically produced in solution can be deposited on various substrates. We have proved that use of…

Materials Science · Physics 2011-01-21 Seiji Obata , Hiroshige Tanaka , Koichiro Saiki

We report a molecular dynamics (MD) simulation study of reverse osmosis desalination using nanoporous monolayer graphene passivated by SiH$_2$ and Si(OH)$_2$ functional groups. A highly accurate and detailed polarizable molecular mechanics…

Chemical Physics · Physics 2018-04-10 Yudong Qiu , Benedict R. Schwegler , Lee-Ping Wang

We demonstrate enhanced four-wave mixing (FWM) in doped silica waveguides integrated with graphene oxide (GO) layers. Owing to strong mode overlap between the integrated waveguides and GO films that have a high Kerr nonlinearity and low…

Carbon monoxide and nitrogen are among the potentially interesting high-energy density materials. However, in spite of the physical similarities of the molecules, they behave very differently at high pressures. Using density functional…

Materials Science · Physics 2013-12-06 Zamaan Raza , Chris J. Pickard , Carlos Pinilla , A. Marco Saitta

We demonstrate theoretically that hydrogenation and annealing applied to nanoscale carbon structures play a crucial role in determining the final shape of the system. In particular, graphene flakes characterized by the linear and…

Materials Science · Physics 2015-05-27 Julia Berashevich , Tapash Chakraborty