LDPE Building Blocks with Controlled Graphene-oxide Interfaces: Composite Manufacturing and Electric Property Investigation

2016 ◽  
Vol 136 (2) ◽  
pp. 93-98 ◽  
Author(s):  
Paolo Mancinelli ◽  
Valentina Santangelo ◽  
Davide Fabiani ◽  
Andrea Saccani ◽  
Maurizio Toselli ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Building Blocks ◽  
Electric Property ◽  
Oxide Interfaces ◽  
Composite Manufacturing

Designing bi-functional silver delafossite bridged graphene oxide interfaces: Insights into synthesis, characterization, photocatalysis, and bactericidal efficiency

2021 ◽  
pp. 131729
Author(s):  
Shivamurthy Ravindra Yashas ◽  
Harikaranahalli Puttaiah Shivaraju ◽  
Gordon McKay ◽  
Behzad Shahmoradi ◽  
Afshin Maleki ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxide Interfaces ◽  
Bactericidal Efficiency

scholarly journals Origami-inspired active graphene-based paper for programmable instant self-folding walking devices

2015 ◽  
Vol 1 (10) ◽  
pp. e1500533 ◽  
Author(s):  
Jiuke Mu ◽  
Chengyi Hou ◽  
Hongzhi Wang ◽  
Yaogang Li ◽  
Qinghong Zhang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Building Blocks ◽  
Artificial Muscles ◽  
Gradient Structure ◽  
Slow Response ◽  
Active Materials ◽  
Wide Range ◽  
Folding Paper ◽  
Graphene Paper ◽  
And Robotics

Origami-inspired active graphene-based paper with programmed gradients in vertical and lateral directions is developed to address many of the limitations of polymer active materials including slow response and violent operation methods. Specifically, we used function-designed graphene oxide as nanoscale building blocks to fabricate an all-graphene self-folding paper that has a single-component gradient structure. A functional device composed of this graphene paper can (i) adopt predesigned shapes, (ii) walk, and (iii) turn a corner. These processes can be remote-controlled by gentle light or heating. We believe that this self-folding material holds potential for a wide range of applications such as sensing, artificial muscles, and robotics.

Enhanced piezo-electric property induced in graphene oxide/polyvinylidene fluoride composite flexible thin films

2017 ◽  
Vol 39 (11) ◽  
pp. 4205-4216 ◽  
Author(s):  
Ritamay Bhunia ◽  
Rajkumar Dey ◽  
Shirsendu Das ◽  
Shamima Hussain ◽  
Radhaballav Bhar ◽  
...  
Keyword(s):  
Thin Films ◽  
Graphene Oxide ◽  
Polyvinylidene Fluoride ◽  
Electric Property ◽  
Piezo Electric

scholarly journals Hybrid quantum anomalous Hall effect at graphene-oxide interfaces

2018 ◽  
Vol 98 (15) ◽  
Author(s):  
Z. Zanolli ◽  
C. Niu ◽  
G. Bihlmayer ◽  
Y. Mokrousov ◽  
P. Mavropoulos ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Hall Effect ◽  
Anomalous Hall Effect ◽  
Oxide Interfaces ◽  
Quantum Anomalous Hall Effect

scholarly journals Mitigating Metal Dendrite Formation in Lithium–Sulfur Batteries via Morphology-Tunable Graphene Oxide Interfaces

2018 ◽  
Vol 11 (2) ◽  
pp. 2060-2070 ◽  
Author(s):  
Yu-Ting Chen ◽  
Syed Ali Abbas ◽  
Nahid Kaisar ◽  
Sheng Hui Wu ◽  
Hsin-An Chen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Oxide Interfaces ◽  
Dendrite Formation ◽  
Lithium Sulfur Batteries ◽  
Lithium Sulfur

Graphene Oxide Interfaces in Serum Based Autoantibody Quantification

2014 ◽  
Vol 87 (1) ◽  
pp. 346-350 ◽  
Author(s):  
Qiao Xu ◽  
Ho Cheng ◽  
Joshua Lehr ◽  
Amol V. Patil ◽  
Jason J. Davis
Keyword(s):  
Graphene Oxide ◽  
Oxide Interfaces

scholarly journals Designing Dual-Function Nanostructures for Water Purification in Sunlight

2020 ◽  
Vol 10 (5) ◽  
pp. 1786 ◽  
Author(s):  
Osama Saber ◽  
Hicham Mahfoz Kotb
Keyword(s):  
Graphene Oxide ◽  
Photocatalytic Degradation ◽  
Water Purification ◽  
High Surface ◽  
High Surface Area ◽  
Building Blocks ◽  
Band Gap Energy ◽  
Dual Process ◽  
Dual Function ◽  
Photoactive Materials

The current study aims at combining two building blocks together into well-designed nanostructures to act as dual-function materials; active photocatalysts in sunlight and effective adsorbents for increasing the efficiency of water purification. By these nanostructures, we could avoid the drawbacks of the existing technologies for water purification and remove the industrial pollutants by a dual process; adsorption and photocatalytic degradation. In this trend, Zn-Al layered double hydroxides (LDHs) are combined with graphene oxide to produce a series of nanolayered structures. These nanolayered structures are effective for converting Zn-Al LDHs to be photo-active in sunlight through decreasing its band gap energy from 5.5 eV to 2.5 eV. In addition, these nanolayered structures caused complete decolorization and mineralization of green dyes in sunlight through accelerating the reaction rate of the photocatalytic degradation of dyes seven times higher than that of the pure Zn-Al LDHs. In the same time, they improved the adsorption process of green dyes through creating new micro- and meso-porous structures and high surface area for Zn-Al LDHs. Finally, the well-designed nanostructures between Zn-Al LDHs and graphene oxide led to converting non-photoactive materials to be active in the visible light in addition to a complete and fast removal for organic pollutants.

Controlled Nanofabrication of Uniform Continuous Graphene Oxide/Polyacrylonitrile Nanofibers for Templated Carbonization

2019 ◽  
Vol 7 (4) ◽  
Author(s):  
Dimitry Papkov ◽  
Alexander Goponenko ◽  
Owen C. Compton ◽  
Zhi An ◽  
SonBinh T. Nguyen ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Composite Nanofibers ◽  
Polymer Concentration ◽  
Building Blocks ◽  
Processing Parameters ◽  
Solid Content ◽  
Graphene Oxides ◽  
Neat Polymer ◽  
Before And After ◽  
Nanoparticle Sizes

Abstract Graphene and graphene oxide attract rapidly growing interest as prospective building blocks for nanotechnology applications and composites. Recently, we showed that a small amount of graphene oxide produced significant templating effects on the structure of continuous carbon nanofibers (CNFs). However, the produced nanofibers had significant nonuniformities that could be detrimental to their mechanical properties. Controlled nanofabrication is critical for obtaining uniform, high-quality nanofibers with tunable diameters and properties. Here, we analyze the effects of graphene oxide type, concentration, and processing parameters on the morphology of continuous graphene oxide/polyacrylonitrile nanofibers produced by electrospinning. Four types of graphene oxides with different average nanoparticle sizes were examined, and the effects of electric field and polymer concentration on nanofiber diameters were analyzed. Good-quality nanofibers were produced with up to 2 wt % graphene oxide in polyacrylonitrile. Uniform nanofibers were obtained for solid content above 9 wt % in dimethylformamide (DMF). Composite nanofibers containing graphene oxide nanoparticles exhibited reduced diameters throughout the polyacrylonitrile concentration range before and after carbonization compared to nanofibers prepared from neat polymer. The obtained results open up a pathway for controlled nanofabrication of uniform CNFs with improved structure for a variety of structural and functional applications.

Sign in / Sign up

Export Citation Format

Share Document