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The understanding of water transport in graphene oxide (GO) membranes stands out as a major theoretical problem in graphene research. Notwithstanding the intense efforts devoted to the subject in the recent years, a consolidated picture of…

介观与纳米尺度物理 · 物理学 2017-03-08 A. Montessori , C. A. Amadei , G. Falcucci , M. Sega , C. D. Vecitis , S. Succi

Graphene, a two-dimensional (2D) promising emergent photocatalyst consisting of earth-abundant elements. This study evaluated the potential of graphene oxide (GO) towards photocatalytic degradation of a novel organic dye, Methylene Blue…

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…

软凝聚态物质 · 物理学 2019-03-26 Xin Xu , Luofu Liu , Hongya Geng , Jianjun Wang , Jiajia Zhou , Ying Jiang , Masao Doi

Transport properties of progressively reduced graphene oxide (GO) are described. Evolution of the electronic properties reveals that as-synthesized GO undergoes insulator-semiconductor-semi-metal transitions with reduction. The apparent…

材料科学 · 物理学 2009-05-19 Goki Eda , Cecilia Mattevi , Hisato Yamaguchi , HoKwon Kim , Manish Chhowalla

The possible formation of oxides or thin oxide films (surface oxides) on late transition metal surfaces is recently being recognized as an essential ingredient when aiming to understand catalytic oxidation reactions under technologically…

材料科学 · 物理学 2009-11-13 Jutta Rogal , Karsten Reuter , Matthias Scheffler

Adsorption is one important way applied to water decontamination, where carbon is commonly used as highly effective absorbent. Carbon of different morphologies and structures normally demonstrate distinct capabilities to adsorption-typed…

材料科学 · 物理学 2017-05-02 Sun Ling

Graphene oxide (GO) flakes have been deposited to bridge the gap between two epitaxial graphene electrodes to produce all-graphene devices. Electrical measurements indicate the presence of Schottky barriers (SB) at the graphene/graphene…

介观与纳米尺度物理 · 物理学 2008-07-07 Xiaosong Wu , Mike Sprinkle , Xuebin Li , Fan Ming , Claire Berger , Walt A. de Heer

A theoretical study of the DOS, resistivity and thermal conductivity of a metallized epitaxial graphene with impurities and structural inhomogeneous of the short-range order type is performed. The conditions for the appearance and…

介观与纳米尺度物理 · 物理学 2017-04-06 N. G. Bobenko , V. E. Egorushkin , N. V. Melnikova , A. N. Ponomarev

Nonempirical modeling of hydrated single-layer graphene oxide (GO) fragments revealed that at least one, but substantial origin of the acidity of aqueous GO solutions is the dissociation in closely grouped and favorably H-bonded hydroxyls.…

材料科学 · 物理学 2022-12-20 Yulia V. Novakovskaya

Water dissociation is of fundamental importance in scientific fields and has drawn considerable interest in diverse technological applications. However, the high activation barrier of breaking the O-H bond within the water molecule has been…

材料科学 · 物理学 2023-03-15 Zhijing Huang , Zihan Yan , Guangdong Zhu , Xing Chen , Shuming Zeng , Xiuyun Zhang , Liang Zhao , Yusong Tu

We report valence band electronic structure evolution of graphene oxide (GO) upon its thermal reduction. Degree of oxygen functionalization was controlled by annealing temperatures, and an electronic structure evolution was monitored using…

Both single layer Ga2O3 (SLGO) and graphene are attractive due to their respective electronic and mechanical properties such as wide bandgap and high electrical conductivity. Bringing them together by using van der Waals force to form a…

材料科学 · 物理学 2022-01-21 Lijie Li

Two processes have been proposed to fabricate graphene/NiFe alloy interfaces for tunneling magnetoresistance devices. One is the transfer of graphene and the other is the evaporation of alloys onto graphene. The formation energy of a NiFe…

材料科学 · 物理学 2025-06-23 Naohiro Matsumoto , Ryusuke Endo , Mitsuharu Uemoto , Tomoya Ono

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…

材料科学 · 物理学 2011-01-21 Seiji Obata , Hiroshige Tanaka , Koichiro Saiki

Patterned graphene shows substantial potential for applications in future molecular-scale integrated electronics. Environmental effects are a critical issue in a single layer material where every atom is on the surface. Especially…

Reduced graphene oxide (rGO) is a bulk-processable quasi-amorphous 2D material with broad spectral coverage and fast electronic response. rGO sheets are suspended in a polymer matrix and sequentially photoreduced while measuring the…

材料科学 · 物理学 2023-06-19 Alden N. Bradley , Spencer G. Thorp , Gina Mayonado , Edward Elliott , Matt W. Graham

There is urgent clinical need to improve the clinical outcome of peripheral nerve injury. Many efforts are directed towards the fabrication of bioengineered conduits, which could deliver stem cells to the site of injury to promote and guide…

Single layers of carbon dubbed "graphenes", from which graphite is built, have attracted broad interest in the scientific community because of recent exciting experimental results. Graphene is interesting from a fundamental research…

材料科学 · 物理学 2008-01-05 Yakov Kopelevich , Pablo Esquinazi

Separation of salt ions from seawater using graphene oxide (GO) membrane is an emerging desalination method. Here, we investigate the dynamic behavior of water, sodium, and chloride ions inside GO membrane using a computational approach.…

化学物理 · 物理学 2021-08-25 One-Sun Lee

Carbon nanomaterials such as carbon nanotubes and graphene have proved to be efficient building blocks for active optoelectronic devices. Especially, the exotic properties of crystalline graphene, such as a linear/gapless energy dispersion,…