نتایج جستجو برای: liquid exfoliation

تعداد نتایج: 220300  

Journal: :Nature nanotechnology 2008
Yenny Hernandez Valeria Nicolosi Mustafa Lotya Fiona M Blighe Zhenyu Sun Sukanta De I T McGovern Brendan Holland Michele Byrne Yurii K Gun'Ko John J Boland Peter Niraj Georg Duesberg Satheesh Krishnamurthy Robbie Goodhue John Hutchison Vittorio Scardaci Andrea C Ferrari Jonathan N Coleman

Fully exploiting the properties of graphene will require a method for the mass production of this remarkable material. Two main routes are possible: large-scale growth or large-scale exfoliation. Here, we demonstrate graphene dispersions with concentrations up to approximately 0.01 mg ml(-1), produced by dispersion and exfoliation of graphite in organic solvents such as N-methyl-pyrrolidone. Th...

Journal: :Catalysts 2023

During water electrolysis, adding an electrocatalyst for the hydrogen evolution reaction (HER) is necessary to reduce activation barrier and thus enhance rate. Metal chalcogenide-based 2D nanomaterials have been studied as alternative noble metal electrocatalysts because of their interesting electrocatalytic properties low costs production. However, difficulty in improving catalytic efficiency ...

Journal: :The British journal of ophthalmology 1995
J Hietanen M Uusitalo A Tarkkanen T Kivelä

AIMS--The study was carried out to search for labelling similar to that of intraocular exfoliation material in the conjunctiva by light microscopy using lectin and immunohistochemistry. METHODS--Ten formalin fixed and paraffin embedded conjunctival biopsy specimens both from patients with and without exfoliation syndrome were studied with a panel of 11 lectins and with three monoclonal antibodi...

Journal: :Analytical chemistry 2005
Nadia Grossiord Oren Regev Joachim Loos Jan Meuldijk Cor E Koning

In this paper we demonstrate that the sonication-driven exfoliation of aggregates and bundles of single-wall carbon nanotubes (SWNTs) in an aqueous surfactant solution can be easily monitored by UV-vis spectroscopy. The different stages of the exfoliation process were directly visualized by cryogenic temperature transmission electron microscopy, showing an excellent correspondence with the spec...

2014
Václav Štengl Jiří Henych Michaela Slušná Petra Ecorchard

High-intensity ultrasound exfoliation of a bulk-layered material is an attractive route for large-scale preparation of monolayers. The monolayer slices could potentially be prepared with a high yield (up to 100%) in a few minutes. Exfoliation of natural minerals (such as tungstenite and molybdenite) or bulk synthetic materials (including hexagonal boron nitride (h-BN), hexagonal boron carbon ni...

Journal: :Nanoscale 2017
Filiberto Ricciardella Sten Vollebregt Tiziana Polichetti Mario Miscuglio Brigida Alfano Maria L Miglietta Ettore Massera Girolamo Di Francia Pasqualina M Sarro

The crystal structure of graphene flakes is expected to significantly affect their sensing properties. Here we report an experimental investigation on the crystalline structure of graphene aimed at exploring the effects on the gas sensing properties. The morphology of graphene, prepared via Chemical Vapor Deposition (CVD), Liquid Phase Exfoliation (LPE) and Mechanical Exfoliation (ME), is inspe...

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