Graphene Oxide Synthesis Thesis

Graphene Oxide Synthesis Thesis-63
2010, 22, with Ruoff group Outline Synthesis and functionalization of graphene oxide and graphene Nanocomposites with graphene oxide and graphene Vacuum-assisted self-assembly (VASA) fabrication of graphene oxide paper and nanocomposites aqueous graphene oxide dispersion Graphene-based structures for energy storage and electronic applications Graphene oxide paper VASA-prepared graphene oxide/pva thin film Hot-pressed graphene/ps thin film Fabricating thin film of nanocomposites hydrazine 90 C precipitate Me OH Isocyanate-treated graphene oxide in DMF with PS Graphene in DMF with PS Graphene PS nanocomposite powder Powder is amenable to melt-processing SEM image of graphene dispersed in PS matrix Graphene PS thin film PS thin film PS/Graphene Composite (1 wt%) The reduced sheets have a crumpled morphology Even at 1 wt% loading the polymer matrix appears to be completely filled with sheets Stankovich, S. Nature 2006, 442, Enhanced conductivity, mechanical, and thermal properties in PS-graphene nanocomposites Graphene transforms insulating polystyrene matrix into electrically conductive composite Percolation threshold of only 0.1 vol% due to excellent dispersion of functionalized graphene in PS matrix Mechanical and thermal properties of parent matrix enhanced by addition of 1 wt% graphene CNTs afford similar improvement, but can cost 0 per gram Stankovich, S. 2008, 3, Outline Synthesis and functionalization of graphene oxide and graphene Nanocomposites with graphene oxide and graphene Vacuum-assisted self-assembly (VASA) fabrication of graphene oxide paper and nanocomposites aqueous graphene oxide dispersion Graphene-based structures for energy storage and electronic applications Graphene oxide paper VASA-prepared graphene oxide/pva thin film Hot-pressed graphene/ps thin film Graphene oxide paper via vacuum-assisted selfassembly (VASA) Intensity Graphene oxide sheets Filtration Graphene oxide paper Vacuum Membrane filter Stankovich, S. Nature 2006, 448, q (deg) with Ruoff group Lateral crosslinking of graphene oxide sheet by MCl 2 Park et al., ACS Nano 2008, 2(3), Tightly bound, still remain after rinsing Weakly bound, can be rinsed away Edge-linked M-carboxylate works agains tensile force to enhance mechanical properties with Ruoff group Covalent cross-linking with borate Hydrogen bonding is weak link in cross-linking network Annealing drives condensation reactions between borate and surface-bound hydroxyls Covalent linkage increases mechanical stiffness up to 120 GPa Practical tests demonstrate films can accommodate ~50 MPa of strain An, Z.; Compton, O.

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Material remains electrochemically stable over the course of 100 charge/discharge cycles Donghai Wang; Rong Kou; Daiwon Choi; Zhenguo Yang; Zimin Nie; Juan Li; Laxmikant V. Kim, Barbaros O zyilmaz5, Jong-Hyun Ahn, Byung Hee Hong, and Sumio Iijima, Nat. 2010, DOI: /NNANO Conclusions Graphene oxide and graphene are versatile nanomaterials that can be assembled into a wide range of macroscopic structures and objects Chemical modifications can greatly improve the properties of the resulting carbon-based assembled materials Thank you for your attention Questions?

E, Northwestern University UT Austin) Mohammad Naraghi, Tobin Filleter, and Horacio Espinosa (Mech.

E, Northwestern University) Stephen Cranford and Markus Buehler (Civil and Environmental Engineering, MIT) Ali Abouimrane and Khalil Amine (Battery Group, Argonne National Laboratory) Karl Putz and L. E, Northwestern University) Outline Synthesis and functionalization of graphene oxide and graphene Nanocomposites with graphene oxide and graphene Vacuum-assisted self-assembly (VASA) fabrication of graphene oxide paper and nanocomposites aqueous graphene oxide dispersion Graphene-based structures for energy storage and electronic applications Graphene oxide paper VASA-prepared graphene oxide/pva thin film Hot-pressed graphene/ps thin film Outline Synthesis and functionalization of graphene oxide and graphene Nanocomposites with graphene oxide and graphene Vacuum-assisted self-assembly (VASA) fabrication of graphene oxide paper and nanocomposites aqueous graphene oxide dispersion Graphene-based structures for energy storage and electronic applications Graphene oxide paper VASA-prepared graphene oxide/pva thin film Hot-pressed graphene/ps thin film Synthesis and characterization of graphene oxide graphite graphite oxide H 2 SO 4 KMn O 4 Bulk quantities attainable only via chemical route Oxygenation expands interlayer gallery Sonication exfoliates structure into individual nm-thick sheets C/O ratio from 1-2 sonication Hummers, W.

and a vast range of useful material for the use and handling of our graphene.

Funding Sourangsu Sarkar Zhi An Owen Compton Collaborators The Ruoff group (Mech.

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  • Use of Graphene Oxide for Sorption of Radionuclides and
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    This dissertation describes the application of graphene oxide to radionuclides and other ions separation from various media and synthesis of some graphene-based nanoribbons. Fundamental phenomena underlying these effects are studied and discussed. Chapter 1 presents the first.…

  • PDF Graphene and Graphene Oxide Synthesis. -
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    Includes the synthesis and processing of metal oxide achieved by Joule heating inside a TEM-STM system, yielding nanostructures and graphenefrom Auburn K/K′ points47,48 University in 2008, where √ her thesis work consisted of = ±t 1 + 4 cos 3kx a ky a ky a liquid crystalline assembly E ±.…

  • Improved Synthesis of Graphene - YouTube
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    Rice University Professor James Tour and graduate student Daniela Marcano discuss their ACS Nano paper "Improved Synthesis of Graphene Oxide," one of the.…

  • Functionalized Graphene and Graphene Oxide Materials
    Reply

    Synthesis and characterization of graphene oxide graphite graphite oxide H 2 SO 4 KMnO 4 Bulk quantities attainable only via chemical route Oxygenation expands interlayer gallery Sonication exfoliates structure into individual nm-thick sheets C/O ratio from 1-2 sonication Hummers, W. S.…

  • Graphene and graphene oxide synthesis, properties, and.
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    Interest in graphene's exceptional physical properties, chemical tunability, and potential for applications has generated thousands of publications and an accelerating pace ofHere is an overview of the synthesis, properties, and applications of graphene and related materials primarily, graphite oxide.…

  • Methods of synthesis of graphene oxide
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    The team at Graphene Box offers all the technical documentation for our products in our online store. Furthermore, in this section we provide all download links for our MSDS, RAMAN spectroscopy photographs, use and handling specifications, manuals. and a vast range of useful material for the.…

  • Synthesis of Highly Reduced Graphene Oxide for
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    Graphene oxide GO begins in monolayer form with high area; the extent of surface area losses by restacking during reduction process is very large. In simple reduction process, the surface area of reduced graphene oxide RGO decreases quickly as the number of sheets per stack increases 12.…

  • An Investigation on the Optimisation Technique of
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    Graphene Oxide GO demonstrates various properties suitable for a plethora of applications. Till now the most common method for GO synthesis hasYet this method has many disadvantages like risk of explosion, inability to scale up etc. Hence, here we have used Marcano’s synthesis method with few.…

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