Self-assembly of Au nanoparticles on graphene sheets as a catalyst with controlled grafting density and high reusability

RSC Advances ◽  
2014 ◽  
Vol 4 (106) ◽  
pp. 61823-61830 ◽  
Author(s):  
Haiqing Yao ◽  
Tsao-Cheng Huang ◽  
Hung-Jue Sue
Keyword(s):  
Graphene Oxide ◽  
Self Assembly ◽  
Au Nanoparticles ◽  
Graphene Sheets ◽  
Au Nps ◽  
Grafting Density ◽  
Graphene Oxide Sheets

Novel catalysts based on self-assembly of Au NPs on graphene oxide sheets through silane functionalization were reported.

An effective non-covalent grafting approach to functionalize individually dispersed reduced graphene oxide sheets with high grafting density, solubility and electrical conductivity

Nanoscale ◽  
2015 ◽  
Vol 7 (8) ◽  
pp. 3548-3557 ◽  
Author(s):  
Hao Wang ◽  
Shu-Guang Bi ◽  
Yun-Sheng Ye ◽  
Yang Xue ◽  
Xiao-Lin Xie ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Graphene Sheets ◽  
Grafting Density ◽  
Reduced Graphene ◽  
Covalent Grafting ◽  
Potential Applications ◽  
Graphene Oxide Sheets

Polymer-functionalized reduced graphene oxide (polymer-FG), produced as individually dispersed graphene sheets, offers new possibilities for the production of nanomaterials that are useful for a broad range of potential applications.

Construction of a multi-interfacial-electron transfer scheme for efficient CO2 photoreduction: a case study using CdIn2S4 micro-flower spheres modified with Au nanoparticles and reduced graphene oxide

2020 ◽  
Vol 8 (36) ◽  
pp. 18707-18714 ◽  
Author(s):  
Xin Li ◽  
Haopeng Jiang ◽  
Changchang Ma ◽  
Zhi Zhu ◽  
Xianghai Song ◽  
...  
Keyword(s):  
Electron Transfer ◽  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Au Nanoparticles ◽  
Interfacial Electron Transfer ◽  
Transfer Scheme ◽  
Au Nps ◽  
Co2 Photoreduction ◽  
Reduced Graphene

CdIn2S4 micro-flower spheres modified with Au NPs and rGO have been designed for CO2 photoreduction.

Precise control of the interlayer spacing between graphene sheets by hydrated cations

2019 ◽  
Vol 21 (14) ◽  
pp. 7623-7629 ◽  
Author(s):  
Yizhou Yang ◽  
Liuhua Mu ◽  
Liang Chen ◽  
Guosheng Shi ◽  
Haiping Fang
Keyword(s):  
Graphene Oxide ◽  
Interlayer Spacing ◽  
Graphene Sheets ◽  
Precise Control ◽  
Dft Computations ◽  
Graphene Oxide Sheets

Based on DFT computations, we show that different hydrated cations can precisely control the interlayer spacings between graphene sheets, which are smaller than that between graphene oxide sheets, indicating an ion sieving.

scholarly journals Amino-functionalization on graphene oxide sheets using an atomic layer amidation technique

2020 ◽  
Vol 8 (2) ◽  
pp. 700-705 ◽  
Author(s):  
Siyong Gu ◽  
Chien-Te Hsieh ◽  
Bikash Chandra Mallick ◽  
Yasser Ashraf Gandomi ◽  
Jeng-Kuei Chang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Atomic Layer ◽  
Graphene Sheets ◽  
Amino Functionalization ◽  
Nitrogen Functionalization ◽  
Graphene Oxide Sheets

Nitrogen functionalization on graphene sheets has solely been demonstrated with a stepwise amidation implementation within the literature.

A facile construction of Au nanoparticles on a copolymer ligand brushes modified graphene oxide nanoplatform with excellent catalytic properties

RSC Advances ◽  
2016 ◽  
Vol 6 (69) ◽  
pp. 64937-64945 ◽  
Author(s):  
Yajiao Song ◽  
Jianhua Lü ◽  
Bingxin Liu ◽  
Changli Lü
Keyword(s):  
Graphene Oxide ◽  
Catalytic Activity ◽  
Au Nanoparticles ◽  
Catalytic Properties ◽  
High Catalytic Activity ◽  
Au Nps ◽  
Modified Graphene Oxide ◽  
Modified Graphene ◽  
Copolymer Brush

Au NPs were generated via in situ reduction on copolymer brush P(OEGMA-co-MQ) functionalized GO. MQ units in the brushes as capping agents could stabilize the Au NPs. The Au NPs–GO hybrid exhibited high catalytic activity for the reduction of 4-NP.

Fabrication of nanoelectrode ensembles by electrodepositon of Au nanoparticles on single-layer graphene oxide sheets

Nanoscale ◽  
2012 ◽  
Vol 4 (8) ◽  
pp. 2728 ◽  
Author(s):  
Zhijuan Wang ◽  
Juan Zhang ◽  
Zongyou Yin ◽  
Shixin Wu ◽  
Daniel Mandler ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Au Nanoparticles ◽  
Single Layer ◽  
Single Layer Graphene ◽  
Layer Graphene ◽  
Graphene Oxide Sheets

Self-assembly of thiolated graphene oxide onto a gold surface and in the supramolecular order of discotic liquid crystals

RSC Advances ◽  
2015 ◽  
Vol 5 (59) ◽  
pp. 47692-47700 ◽  
Author(s):  
Avinash B. Shivanandareddy ◽  
Manish Kumar ◽  
V. Lakshminarayanan ◽  
Sandeep Kumar
Keyword(s):  
Graphene Oxide ◽  
Liquid Crystals ◽  
Self Assembly ◽  
Supramolecular Structure ◽  
Gold Surface ◽  
Discotic Liquid Crystals ◽  
Gold Surfaces ◽  
Covalent Functionalization ◽  
Potential Applications ◽  
Graphene Oxide Sheets

Covalent functionalization of graphene oxide sheets with thiol produces thiolated graphene oxide which self assembles on gold surfaces and in the supramolecular structure of a discotic mesophase which have potential applications in optoelectronics.

scholarly journals Elastic Three-Dimensional Graphene Sponge Fabricated by the Liquid Crystals of Controlled Large Graphene Oxide Sheets

2018 ◽  
Author(s):  
Qiuli Wei ◽  
Anaerguli Wufuer ◽  
Meisong Wang ◽  
Yuanyuan Wang ◽  
Liyi Dai
Keyword(s):  
Graphene Oxide ◽  
Liquid Crystals ◽  
Self Assembly ◽  
Large Scale ◽  
Three Dimensional ◽  
High Porosity ◽  
Graphene Sponge ◽  
New Strategy ◽  
Facile Fabrication ◽  
Graphene Oxide Sheets

Three-dimensional graphene (3DG) sponge has attracted increasing attention because it combines the unique properties of cellular materials and the excellent performance of graphene. The preparation of 3DG sponge depends mainly on the self-assembly of graphene oxide sheets. Here, we demonstrate facile fabrication of 3DG sponge with a large-scale and ordered porous structure, exploiting the liquid crystals of large graphene oxide (LGO) and ultralarge graphene oxide (ULGO) sheets. The resulting materials exhibit a low density, high porosity and elasticity. Our work explores a new strategy for organizing the ordered alignment of controlled large GO sheets and exploring the relationship between the microstructures and mechanical properties of 3DG sponge.

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