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Graphene oxide film as solid lubricant.

2013-7-10 · Graphene oxide film as solid lubricant. Liang H(1), Bu Y, Zhang J, Cao Z, Liang A. Author information: (1)State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences, Lanzhou 730000, China. As a layered material, graphene oxide (GO) film is a good candidate for improving friction and antiwear ...

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Article – Graphenea

Today's graphene is normally produced using mechanical or thermal exfoliation, chemical vapour deposition (CVD), and epitaxial growth.One of the most effective way of synthesised graphene on a large scale could be by the chemical reduction of graphene oxide. Since the first report on mechanical exfoliation of monolayer graphene in 2004, interest in graphite oxide (which is produced by ...

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Atomic-scale friction in graphene oxide: An interfacial ...

Atomic-scale friction in graphene oxide is investigated using density functional theory calculation including a long-range dispersion correction (DFT-D). The sliding behaviors between two graphene oxide layers with different functional groups or oxidation levels are quantitatively studied based on the constructed potential energy surfaces.

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A Novel Lubricant Based on Covalent Functionalized ...

2018-4-11 · Preparation of graphene oxide quantum dots (GQD COOH) 2. Oxidized graphene quantum dots (GQD COOH) 2 were synthesized in the presence of 65% sulfuric acid and 95% nitric acid (3:1) 39 from Graphite (flakes, +100 mesh particle size (≥85%)), purchased from Sigma Aldrich. The reaction mixture was treated with ultrasonic sound for 3 h to give a homogenous suspension.

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Lubricant‐Infused Anisotropic Porous Surface Design …

Lubricant‐Infused Anisotropic Porous Surface Design of Reduced Graphene Oxide Toward Electrically Driven Smart Control of Conductive Droplets' Motion. Pengda Che. School of Chemistry, Beihang University, Beijing, 100191 China. Search for more papers by this author. Liping Heng.

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(PDF) Graphene: A new emerging lubricant - …

Wear rate for bare steel, graphite/steel, graphene oxide/steel, and graphene on steel in humid and dry environments. From Refs. [48,49]. …

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Preparation of a reduced graphene oxide/zirconia ...

Nanocomposites consisting of zirconia (ZrO 2) nanoparticles and reduced graphene oxide (rGO) nanosheets were successfully fabricated by a one-pot hydrothermal method.By regulating the proportion of the precursors of the GO colloidal suspension and zirconium oxychloride (ZrOCl 2) solution, ZrO 2 nanoparticles with a diameter of about 5 nm were uniformly anchored onto the rGO nanosheets.

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Energy efficient reduced graphene oxide additives ...

Schluter et al. showed that thermally reduced graphene oxide (TRGO) containing lubricant significantly enhanced the friction and wear properties 26. It is predicted that the enhancement in above ...

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Energy efficient reduced graphene oxide additives ...

Schluter et al. showed that thermally reduced graphene oxide (TRGO) containing lubricant significantly enhanced the friction and wear properties 26. It is predicted that the enhancement in above ...

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Energy efficient reduced graphene oxide additives ...

However, lubrication of graphene and concentration dependent lubricity mechanism in the literature is poorly understood. Schluter et al. showed that thermally reduced graphene oxide (TRGO) containing lubricant significantly enhanced the friction and wear properties 26. It is predicted that the enhancement in above properties are attributed to ...

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Mild thermal reduction of graphene oxide as a …

Mild thermal reduction of graphene oxide as a lubrication additive for friction and wear reduction. Jun Zhao a, Yingru Li b, Yongfu Wang c, Junyuan Mao a, Yongyong He * a and Jianbin Luo * a a State Key Laboratory of Tribology, Tsinghua University, Beijing, 100084, China. E-mail: heyy@mail.tsinghua.edu.cn; luojb@tsinghua.edu.cn b Institute of Materials, China Academy of Engineering Physics ...

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Tribological Behaviors of Graphene and Graphene …

The tribological behaviors of graphene and graphene oxide (GO) as water-based lubricant additives were evaluated by use of a reciprocating ball-on-plate tribometer for magnesium alloy-steel contacts. Three sets of test conditions were examined to investigate the effect of concentration, the capacity of carrying load and the endurance of the lubrication film, respectively.

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Tribological Characterisation of Graphene Oxide as ...

2018-10-26 · The performance of a lubricant greatly depends on the additives it involves. However, recently used additives produce severe pollution when they are burned and exhausted. Therefore, it is necessary to develop a new generation of green additives. Graphene oxide (GO) is considered to be environmentally friendly.

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High-performance lubricant additives based on …

Graphene oxide (GO) is a layered material bearing a variety of oxygen-containing functional groups on its basal planes and edges, which allow it as a substrate to conduct a variety of chemical transformations. Here modified graphene oxide (MGO) was prepared using alkyl imidazolium ionic liquids (ILs …

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Tribological Characterisation of Graphene Oxide as ...

2018-10-26 · The performance of a lubricant greatly depends on the additives it involves. However, recently used additives produce severe pollution when they are burned and exhausted. Therefore, it is necessary to develop a new generation of green additives. Graphene oxide (GO) is considered to be environmentally friendly.