Grafting polymer brushes on graphene oxide for controlling surface charge states and templated synthesis of metal nanoparticles

2012 ◽  
Vol 127 (4) ◽  
pp. 3074-3083 ◽  
Author(s):  
Tingting Gao ◽  
Qian Ye ◽  
Xiaowei Pei ◽  
Yanqiu Xia ◽  
Feng Zhou
Keyword(s):  
Graphene Oxide ◽  
Surface Charge ◽  
Metal Nanoparticles ◽  
Polymer Brushes ◽  
Templated Synthesis ◽  
Charge States

Layer by layer assembled functionalized graphene oxide-based polymer brushes for superlubricity on steel-steel tribocontact

Soft Matter ◽  
2021 ◽  
Author(s):  
Suprakash Samanta ◽  
Rashmi Ranjan Sahoo
Keyword(s):  
Graphene Oxide ◽  
Nucleophilic Addition ◽  
Polymer Brushes ◽  
Addition Reaction ◽  
Layer By Layer ◽  
Functionalized Graphene ◽  
Covalent Functionalization ◽  
Functionalized Graphene Oxide ◽  
Nucleophilic Addition Reaction ◽  
Branched Polyethylenimine

Present study demonstrates a simple and multistep approach for the preparation of covalent functionalization of chemically prepared graphene oxide (GO) by branched polyethylenimine (PEI) through nucleophilic addition reaction to prepare...

An insight into the binding behavior of graphene oxide and noble metal nanoparticles

2021 ◽  
Vol 129 (12) ◽  
pp. 125302
Author(s):  
Wajeeha Saeed ◽  
Zeeshan Abbasi ◽  
Shumaila Majeed ◽  
Sohail Anjum Shahzad ◽  
Abdul Faheem Khan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Metal Nanoparticles ◽  
Noble Metal ◽  
Noble Metal Nanoparticles ◽  
Binding Behavior ◽  
Insight Into

Effect of Surface Charge Density of Graphene Oxide on Chemical Warfare Agent Simulants Blocking

2021 ◽  
pp. 152225
Author(s):  
Youna Kim ◽  
Moonhyun Choi ◽  
Jiwoong Heo ◽  
Sungwon Jung ◽  
Dongwon Ka ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Charge Density ◽  
Surface Charge ◽  
Surface Charge Density ◽  
Chemical Warfare Agent ◽  
Chemical Warfare ◽  
Effect Of Surface

Photochemical loading of metal nanoparticles on reduced graphene oxide sheets using phosphotungstate

Carbon ◽  
2011 ◽  
Vol 49 (11) ◽  
pp. 3454-3462 ◽  
Author(s):  
Gun-hee Moon ◽  
Yiseul Park ◽  
Wooyul Kim ◽  
Wonyong Choi
Keyword(s):  
Graphene Oxide ◽  
Metal Nanoparticles ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets

Bimetallic MOF-templated synthesis of alloy nanoparticle-embedded porous carbons for oxygen evolution and reduction reactions

2019 ◽  
Vol 48 (37) ◽  
pp. 13953-13959 ◽  
Author(s):  
Zakary Lionet ◽  
Shun Nishijima ◽  
Tae-Ho Kim ◽  
Yu Horiuchi ◽  
Soo Wohn Lee ◽  
...  
Keyword(s):  
Metal Nanoparticles ◽  
Oxygen Evolution ◽  
Porous Carbon ◽  
Metal Organic Frameworks ◽  
Carbon Matrix ◽  
Porous Carbons ◽  
Reduction Reactions ◽  
Templated Synthesis ◽  
Metal Organic

Pyrolysis of metal–organic frameworks (MOFs) to produce metal nanoparticles embedded inside a porous carbon matrix (M@PC) has drawn a lot of attention in recent years.

scholarly journals Effect of Structure of Polymers Grafted from Graphene Oxide on the Compatibility of Particles with a Silicone-Based Environment and the Stimuli-Responsive Capabilities of Their Composites

Nanomaterials ◽  
2020 ◽  
Vol 10 (3) ◽  
pp. 591 ◽  
Author(s):  
Monika Zygo ◽  
Miroslav Mrlik ◽  
Marketa Ilcikova ◽  
Martina Hrabalikova ◽  
Josef Osicka ◽  
...  
Keyword(s):  
Molecular Weight ◽  
Graphene Oxide ◽  
Radical Polymerization ◽  
Polymer Brushes ◽  
Silicone Oil ◽  
Polymer Chains ◽  
Butyl Methacrylate ◽  
Raman Shift ◽  
Stimuli Responsive ◽  
Grafted Polymer

This study reports the utilization of controlled radical polymerization as a tool for controlling the stimuli-responsive capabilities of graphene oxide (GO) based hybrid systems. Various polymer brushes with controlled molecular weight and narrow molecular weight distribution were grafted from the GO surface by surface-initiated atom transfer radical polymerization (SI-ATRP). The modification of GO with poly(n-butyl methacrylate) (PBMA), poly(glycidyl methacrylate) (PGMA), poly(trimethylsilyloxyethyl methacrylate) (PHEMATMS) and poly(methyl methacrylate) (PMMA) was confirmed by thermogravimetric analysis (TGA) coupled with online Fourier transform infrared spectroscopy (FTIR), transmission electron microscopy (TEM) and X-ray photoelectron spectroscopy (XPS). Various grafting densities of GO-based materials were investigated, and conductivity was elucidated using a four-point probe method. Raman shift and XPS were used to confirm the reduction of surface properties of the GO particles during SI-ATRP. The contact angle measurements indicated the changes in the compatibility of GOs with silicone oil, depending on the structure of the grafted polymer chains. The compatibility of the GOs with poly(dimethylsiloxane) was also investigated using steady shear rheology. The tunability of the electrorheological, as well as the photo-actuation capability, was investigated. It was shown that in addition to the modification of conductivity, the dipole moment of the pendant groups of the grafted polymer chains also plays an important role in the electrorheological (ER) performance. The compatibility of the particles with the polymer matrix, and thus proper particles dispersibility, is the most important factor for the photo-actuation efficiency. The plasticizing effect of the GO-polymer hybrid filler also has a crucial impact on the matrix stiffness and thus the ability to reversibly respond to the external light stimulation.

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