نتایج جستجو برای: Chemical exfoliation

تعداد نتایج: 380518  

Journal: :international journal of nano dimension 0
ahmad allahbakhsh department of polymer engineering, south tehran branch, islamic azad university, tehran, iran. farhad sharif department of polymer engineering, amirkabir university of technology, tehran, iran. saeedeh mazinani amirkabir nanotechnology research institute (antri), amirkabir university of technology, tehran, iran. m. r. kalaee 1department of polymer engineering, islamic azad university, south tehran branch, tehran, iran.

in this study, an efficient and facile technique for preparing graphene oxide in suspension and powder forms was presented based on a modification on hummers' method followed by an additional ultrasonic process. the method involved the provision of graphene oxide from graphite by reaction of potassium permanganate and sulfuric acid with stabilizing the medium complex. furthermore, this stu...

2017
Mongur Hossain Zhaoyang Zhao Wen Wen Xinsheng Wang Juanxia Wu Liming Xie Spyros Yannopoulos

Recently, two-dimensional (2D) charge density wave (CDW) materials have attracted extensive interest due to potential applications as high performance functional nanomaterials. As other 2D materials, 2D CDW materials are layered materials with strong in-plane bonding and weak out-of-plane interactions enabling exfoliation into layers of single unit cell thickness. Although bulk CDW materials ha...

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...

Journal: :Langmuir : the ACS journal of surfaces and colloids 2011
Sadok Letaief Jérôme Leclercq Yun Liu Christian Detellier

A simple chemical route for the exfoliation of kaolinite in the presence of polymerizable ionic liquids and the resulting obtainment of exfoliated nanocomposites is reported. The exfoliation was achieved using three different ionic liquids structurally bearing a vinyl group: 1-methyl-3-(4-vinylbenzyl)imidazolium chloride salt (IL_1), 1-methyl-1-(4-vinylbenzyl)pyrrolidinium chloride (IL_2), and ...

Journal: :Chemical Society reviews 2017
Lei Dong Jieun Yang Manish Chhowalla Kian Ping Loh

Graphene oxide (GO) can be considered as one of the most visible outcomes of graphene research in terms of large scale production and commercialization prospects. Although GO can be easily prepared by oxidation-exfoliation of graphite in agitated solutions, the size of these sheets is generally limited due to fragmentation along fault lines during chemical oxidation and exfoliation in agitated ...

Journal: :Journal of Physics: Condensed Matter 2013

2016
Weijie Ye Xiaoyun Li Hongli Zhu Xiaoying Wang Suqing Wang Haihui Wang Runcang Sun

Schematic of CG preparation via direct liquid-phase exfoliation and applications as lithium ion battery anode and chemical reaction trigger. a r t i c l e i n f o

Journal: :Chemical communications 2015
Adriano Ambrosi Zdeněk Sofer Martin Pumera

We investigate herein the four most widely considered TMD materials: MoS2, MoSe2, WS2 and WSe2. A 2H → 1T phase transition occurs during the chemical exfoliation with different efficiencies among the four materials.

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