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Graphene oxide (GO) is one of the important functional materials. Large-scale synthesis of it is very challenging. Following a simple cost-effective route, large-scale GO was produced by mechanical (ball) milling, in air, of carbon…

Materials Science · Physics 2023-07-19 Sandip Das , Subhamay Pramanik , Sumit Mukherjee , Tatan Ghosh , Rajib Nath , Probodh K. Kuiri

The allure of all carbon electronics stems from the spread in physical properties, across all its allotropes. The scheme also harbours unique challenges, like tunability of band-gap, variability of doping and defect control. Here, we…

Mesoscale and Nanoscale Physics · Physics 2021-12-30 Arijit Kayal , Harikrishnan Gopalakrishnan , Kingshuk Bandopadhyay , Amit Kumar , S. Ravi P. Silva , J. Mitra

Two-dimensional (2D) materials offer a prospect of membranes that combine negligible gas permeability with high proton conductivity and could outperform the existing proton exchange membranes used in various applications including fuel…

Because of high surface area and combination of various functional groups, graphene oxide (GO) is currently one of the most actively studying materials for electroanalytical applications. Self-supported GO is not practical enough to be…

When it is oxidized, graphite can be easily exfoliated forming graphene oxide (GO). GO is a critical intermediate for massive production of graphene, and it is also an important material with various application potentials. With many…

Materials Science · Physics 2009-12-31 Wenhua Zhang , Vincenzo Carravetta , Zhenyu Li , Yi Luo , Jinlong Yang

In this paper, we establish the existence of both compressive stress and charge transfer process in hydrothermally synthesized cobalt ferrite-graphene oxide (CoFe2O4/GO) nanocomposites. Transmission electron microscopy (TEM) results reveal…

Mesoscale and Nanoscale Physics · Physics 2017-05-24 Amodini Mishra , Vikash Kumar Singh , Tanuja Mohanty

Efficient heat management and control in optical devices, facilitated by advanced thermo-optic materials, is critical for many applications such as photovoltaics, thermal emitters, mode-locked lasers, and optical switches. Here, we…

Optics · Physics 2024-06-26 David J. Moss

A novel nanomaterial which consists of graphene sheets decorated with silsesquioxane molecoles has been developed. Indeed, aminopropyl-silsesquioxane (POSS-NH2) has been employed to functionalize graphene oxide sheets (GOs). The surface…

Materials Science · Physics 2013-02-07 Luca Valentini , Marta Cardinali , Jose M. Kenny , Mirko Prato , Orietta Monticelli

Because they may provide ultrathin, high-flux, and energy-efficient membranes for precise ionic and molecular sieving in aqueous solution, GO membranes (partially oxidized, stacked sheets of graphene) have shown great potential in water…

Hydration properties of graphene oxide (GO) are essential for most of its potential applications. In this work, we employ atomistic molecular dynamics simulations to investigate seven GO compositions with different levels of oxygenation.…

Materials Science · Physics 2018-02-14 Antenor Neto , Vitaly V. Chaban , Eudes E. Fileti

Since the discovery of graphene oxide (GO), the most accessible of the precursors of graphene, this material has been widely studied for applications in science and technology. In this work, we describe a procedure to obtain GO dispersions…

Graphene oxide is a rising star among 2D materials, yet its interaction with liquid water remains a fundamentally open question: experimental characterization at the atomic scale is difficult, and modelling by classical approaches cannot…

Materials Science · Physics 2020-03-27 Félix Mouhat , François-Xavier Coudert , Marie-Laure Bocquet

The ability to tune charge storage properties of graphene oxide (GO) is of utmost importance for energy conversion applications. Here we show that electrochemical reduction of GO is highly sensitive to the cations present in the solution.…

Materials Science · Physics 2018-09-05 Dalibor Karačić , Selma Korać , Igor A. Pašti , Sanjin J. Gutić

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

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…

Graphene has the potential to make a very significant impact on society, with important applications in the biomedical field. The possibility to engineer graphene-based medical devices at the neuronal interface is of particular interest,…

The type and distribution of oxygen functional groups in graphene oxide (GO) and reduced graphene oxide (RGO) remain still a subject of great debate. Local analytic techniques are required to access the chemistry of these materials at a…

Materials Science · Physics 2016-12-13 Anna Tararan , Alberto Zobelli , Ana M. Benito , Wolfgang K. Maser , Odile Stéphan

Graphene Oxide (GO) remains a perennial chemical enigma despite its utility in preparing graphene and its functionalization. Epoxides and tertiary alcohols are construed as primary functional groups, but the structural motifs, spectra, and…

Materials Science · Physics 2025-01-27 Musiri M Balakrishnarajan , Gaurav Jhaa , Pattath D Pancharatna

The dynamic covalent properties of graphene oxide (GO) are of fundamental interest to a broad range of scientific areas and technological applications. It remains a challenge to access the feasible dynamic reactions for reversibly…

Materials Science · Physics 2022-08-24 Zihan Yan , Wenjie Yang , Hao Yang , Chengao Ji , Shuming Zeng , Xiuyun Zhang , Liang Zhao , Yusong Tu

Here we describe a computational study undertaken in an effort to elucidate the reaction mechanisms behind the experimentally observed oxidations and hydrations catalyzed by graphene oxide (GO). Using the oxidation of benzyl alcohol to…

Materials Science · Physics 2012-11-13 Danil W. Boukhvalov , Daniel R. Dreyer , Christopher W. Bielawski , Young-Woo Son