scholarly journals Driving forces for the self-assembly of graphene oxide on organic monolayers

Nanoscale ◽  
2014 ◽  
Vol 6 (19) ◽  
pp. 11344-11350 ◽  
Author(s):  
Johannes Kirschner ◽  
Zhenxing Wang ◽  
Siegfried Eigler ◽  
Hans-Peter Steinrück ◽  
Christof M. Jäger ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
Driving Forces ◽  
The Self ◽  
Organic Monolayers

Effect of Microstructure of Graphene Oxide Fabricated Composite Membranes on Alcohol Dehydration

2014 ◽  
Vol 1051 ◽  
pp. 278-282 ◽  
Author(s):  
Wei Song Hung ◽  
Kueir Rarn Lee ◽  
Juin Yih Lai
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
Driving Forces ◽  
Composite Membranes ◽  
The Self ◽  
Separation Performance ◽  
Permeation Flux ◽  
Laminate Structure ◽  
Alcohol Dehydration ◽  
Assembly Technique

We utilized pressure-, vacuum-, and evaporation-assisted self-assembly techniques through which graphene oxide (GO) was deposited on modified polyacrylonitrile (mPAN). The fabricated composite GO/mPAN membranes were applied to dehydrate 1-butanol mixtures by pervaporation. Varying driving forces in the self-assembly techniques induced different GO assembly layer microstructures. XRD results indicated that the GO layer d-spacing varied from 8.3 Å to 11.5 Å. The self-assembly technique with evaporation resulted in a heterogeneous GO layer with loop structures; this layer was shown to be hydrophobic, in contrast to the hydrophilic layer formed from the other two techniques. From the pressure-assisted technique, the composite membrane exhibited exceptional pervaporation performance at 30 °C: concentration of water at the permeate side = 99.6 wt% and permeation flux = 2.54 kg m-2 h-1. This excellent separation performance stemmed from the dense, highly ordered laminate structure of GO.

Metal–organic framework derived 3D graphene decorated NaTi2(PO4)3 for fast Na-ion storage

Nanoscale ◽  
2019 ◽  
Vol 11 (15) ◽  
pp. 7347-7357 ◽  
Author(s):  
Lei Wang ◽  
Zhennan Huang ◽  
Bo Wang ◽  
Hao Luo ◽  
Meng Cheng ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
Metal Organic Framework ◽  
Metal Organic Frameworks ◽  
The Self ◽  
3D Graphene ◽  
Ion Storage ◽  
Metal Organic ◽  
Organic Framework

Titanium-based metal–organic frameworks have been used as an in situ etching template for the self-assembly of graphene oxide to construct NaTi2(PO4)3-rGO composite.

scholarly journals STM visualisation of counterions and the effect of charges on self-assembled monolayers of macrocycles

2011 ◽  
Vol 2 ◽  
pp. 674-680 ◽  
Author(s):  
Tibor Kudernac ◽  
Natalia Shabelina ◽  
Wael Mamdouh ◽  
Sigurd Höger ◽  
Steven De Feyter
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Self Assembled Monolayers ◽  
Assembly Process ◽  
Organic Monolayers ◽  
Preferential Adsorption ◽  
Scanning Tunnelling ◽  
Assembled Monolayers ◽  
Tunnelling Microscopy ◽  
Self Assembled

Despite their importance in self-assembly processes, the influence of charged counterions on the geometry of self-assembled organic monolayers and their direct localisation within the monolayers has been given little attention. Recently, various examples of self-assembled monolayers composed of charged molecules on surfaces have been reported, but no effort has been made to prove the presence of counterions within the monolayer. Here we show that visualisation and exact localisation of counterions within self-assembled monolayers can be achieved with scanning tunnelling microscopy (STM). The presence of charges on the studied shape-persistent macrocycles is shown to have a profound effect on the self-assembly process at the liquid–solid interface. Furthermore, preferential adsorption was observed for the uncharged analogue of the macrocycle on a surface.

Epoxidation of the surface of polydicyclopentadiene for the self-assembly of organic monolayers

2010 ◽  
Vol 20 (39) ◽  
pp. 8679 ◽  
Author(s):  
Mathew Perring ◽  
Tyler R. Long ◽  
Ned B. Bowden
Keyword(s):  
Self Assembly ◽  
The Self ◽  
Organic Monolayers

Self-assembly of graphene oxide aerogels by layered double hydroxides cross-linking and their application in water purification

2014 ◽  
Vol 2 (23) ◽  
pp. 8941-8951 ◽  
Author(s):  
Qile Fang ◽  
Baoliang Chen
Keyword(s):  
Graphene Oxide ◽  
Structural Stability ◽  
Water Purification ◽  
Layered Double Hydroxides ◽  
Self Assembly ◽  
Adsorption Properties ◽  
The Self ◽  
Cross Linking ◽  
Double Hydroxides

3D macrostructural aerogels were synthesized based on the self-assembly of graphene oxide and LDHs, which exhibited excellent hydrophilicity, structural stability, and superior adsorption properties in water purification.

scholarly journals Unraveling the Driving Forces in the Self-Assembly of Monodisperse Naphthalenediimide-Oligodimethylsiloxane Block Molecules

ACS Nano ◽  
2017 ◽  
Vol 11 (4) ◽  
pp. 3733-3741 ◽  
Author(s):  
José Augusto Berrocal ◽  
R. Helen Zha ◽  
Bas F. M. de Waal ◽  
Jody A. M. Lugger ◽  
Martin Lutz ◽  
...  
Keyword(s):  
Self Assembly ◽  
Driving Forces ◽  
The Self

Surface-enhanced Raman spectroscopy for DNA detection by the self-assembly of Ag nanoparticles onto Ag nanoparticle–graphene oxide nanocomposites

2015 ◽  
Vol 17 (28) ◽  
pp. 18443-18448 ◽  
Author(s):  
Tsung-Wu Lin ◽  
Hong-Yi Wu ◽  
Ting-Ti Tasi ◽  
Ying-Huang Lai ◽  
Hsin-Hui Shen
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
Ag Nanoparticles ◽  
Surface Enhanced Raman Spectroscopy ◽  
The Self ◽  
Sensing System ◽  
Surface Enhanced ◽  
Surface Enhanced Raman ◽  
Enhanced Raman Scattering ◽  
Sers Sensing

A novel surface-enhanced Raman scattering (SERS) sensing system which operates by the self-assembly of Ag nanoparticles (AgNPs) onto the nanocomposite of AgNPs and graphene oxide (AgNP–GO) in the presence of two complementary DNAs has been developed.

scholarly journals Urethane tetrathiafulvalene derivatives: synthesis, self-assembly and electrochemical properties

2015 ◽  
Vol 11 ◽  
pp. 2343-2349 ◽  
Author(s):  
Xiang Sun ◽  
Guoqiao Lai ◽  
Zhifang Li ◽  
Yuwen Ma ◽  
Xiao Yuan ◽  
...  
Keyword(s):  
Self Assembly ◽  
Driving Forces ◽  
Noncovalent Interactions ◽  
Electronic Conductivity ◽  
The Self ◽  
Stacking Interactions ◽  
X Ray Diffraction ◽  
X Ray ◽  
Hydrogen Bond Interactions ◽  
Better Than

This paper reports the self-assembly of two new tetrathiafulvalene (TTF) derivatives that contain one or two urethane groups. The formation of nanoribbons was evidenced by scanning electron microscopy (SEM) and X-ray diffraction (XRD), which showed that the self-assembly ability of T 1 was better than that of T 2 . The results revealed that more urethane groups in a molecule did not necessarily instigate self-assembly. UV–vis and FTIR spectra were measured to explore noncovalent interactions. The driving forces for self-assembly of TTF derivatives were mainly hydrogen bond interactions and π–π stacking interactions. The electronic conductivity of the T 1 and T 2 films was tested by a four-probe method.

Covalent attachment of 3-(aminomethyl)pyridine to graphene oxide: a new stabilizer for the synthesis of a palladium thin film at the oil–water interface as an effective catalyst for the Suzuki–Miyaura reaction

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 47701-47708 ◽  
Author(s):  
S. Jafar Hoseini ◽  
Hedieh Ghanavat Khozestan ◽  
Roghayeh Hashemi Fath
Keyword(s):  
Thin Film ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Self Assembly ◽  
Planar Interface ◽  
The Self ◽  
Covalent Attachment ◽  
Water Interface ◽  
Reduced Graphene ◽  
Oil Water

A toluene–water planar interface has been used as an ideal template for the self-assembly of a Pd/3-(aminomethyl) pyridine-reduced graphene oxide nanohybrid.

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