A Novel Chemical Synthesis >1 μm2 Reduced Graphene Oxide Sheets

2012 ◽  
Vol 1390 ◽  
Author(s):  
Rebecca Isseroff ◽  
Paul Masih Das ◽  
Andrew Chen ◽  
Alexandra Tse ◽  
Sneha Chittabathini ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Large Scale ◽  
Efficient Synthesis ◽  
Water Solvent ◽  
Reduced Graphene ◽  
Synthesis Procedure ◽  
Cost Efficient ◽  
Graphene Oxide Sheets

ABSTRACTIf graphene is to be incorporated into transistors, solar cells, and capacitors, a large-scale synthesis of graphene must be devised. This research developed an innovative, simple, and cost-efficient synthesis procedure, dispersing graphene oxide in an ethanol-water solvent and reducing slowly with sodium borohydride (NaBH4). Reducing graphene oxide in 75:25 and 50:50 H2O:ethanol solutions with 15 mmolar NaBH4 produced numerous single-layered reduced graphene oxide sheets >1 μm2, and sometimes even >2 μm2. The quality of these sheets was confirmed by Raman spectroscopy, XRD, TGA, TEM, ED, and HRTEM.

Creating Metal Nanoparticle-Reduced Graphene Oxide Sheets by a Simple Desktop Method

2015 ◽  
Vol 1727 ◽  
Author(s):  
Rebecca Isseroff ◽  
Arthur Chen ◽  
Lee Blackburn ◽  
Justin Lish ◽  
Jessica Kim ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduction Process ◽  
Metal Nanoparticle ◽  
Water Solvent ◽  
Metal Atoms ◽  
Reduced Graphene ◽  
Metallic Salts ◽  
Surface Contact Area ◽  
Graphene Oxide Sheets

ABSTRACTWe have previously reported on a simple desktop method for producing high quality reduced graphene oxide sheets (RGO) which involved dispersing graphene oxide in an ethanol-water solvent and reducing it with sodium borohydride. Metal salts can also be potent reducing agents. Here we show that when these salts are incorporated into the reduction process, metalized graphene sheets can be formed. Metallic salts were used to form Au, Pt, and AuPt nanoplatelets incorporated into the graphene structure. The nature of these metalized graphene platelets was then examined using FTIR, TEM, and SEM/EDAX. Raman spectroscopy of metalized graphene samples show peak shifts and increased D/G ratios over pure graphene, indicating an increased number of defects in the material and suggesting an attachment of metal atoms to the graphene surface. By using a minimum of metal while maximizing the surface contact area of the graphene sheet, these nanoparticle-RGO composites have potential for use in energy-producing devices and/or as catalysts.

Large scale production of highly conductive reduced graphene oxide sheets by a solvent-free low temperature reduction

Carbon ◽  
2014 ◽  
Vol 69 ◽  
pp. 327-335 ◽  
Author(s):  
Kyu Hyung Lee ◽  
Byeongno Lee ◽  
Son-Jong Hwang ◽  
Jae-Ung Lee ◽  
Hyeonsik Cheong ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Low Temperature ◽  
Reduced Graphene Oxide ◽  
Large Scale ◽  
Solvent Free ◽  
Scale Production ◽  
Temperature Reduction ◽  
Large Scale Production ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets

Investigation of Raman and photoluminescence studies of reduced graphene oxide sheets

2011 ◽  
Vol 106 (3) ◽  
pp. 501-506 ◽  
Author(s):  
Karthikeyan Krishnamoorthy ◽  
Murugan Veerapandian ◽  
Rajneesh Mohan ◽  
Sang-Jae Kim
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Reduced Graphene ◽  
Photoluminescence Studies ◽  
Graphene Oxide Sheets

Plasma-induced highly efficient synthesis of boron doped reduced graphene oxide for supercapacitors

2016 ◽  
Vol 52 (73) ◽  
pp. 10988-10991 ◽  
Author(s):  
Shaobo Li ◽  
Zhaofeng Wang ◽  
Hanmei Jiang ◽  
Limei Zhang ◽  
Jingzheng Ren ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Barrier Discharge ◽  
Efficient Synthesis ◽  
Ambient Conditions ◽  
Plasma Technology ◽  
Dbd Plasma ◽  
Dielectric Barrier ◽  
Boron Doped ◽  
Reduced Graphene

In this work, we presented a novel route to synthesize boron doped reduced graphene oxide (rGO) by using the dielectric barrier discharge (DBD) plasma technology under ambient conditions.

scholarly journals Surface plasmon enhanced photoluminescence of ZnO nanorods by capping reduced graphene oxide sheets

2014 ◽  
Vol 22 (10) ◽  
pp. 11436 ◽  
Author(s):  
Feng Han ◽  
Shuming Yang ◽  
Weixuan Jing ◽  
Kyle Jiang ◽  
Zhuangde Jiang ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Surface Plasmon ◽  
Zno Nanorods ◽  
Enhanced Photoluminescence ◽  
Reduced Graphene ◽  
Graphene Oxide Sheets

One-step Functionalization of Mildly and Strongly Reduced Graphene Oxide with Maleimide: An Experimental and Theoretical Investigation of the Diels-Alder [4+2] Cycloaddition Reaction

2021 ◽  
Author(s):  
Alfonso Ferretti ◽  
Sourab Sinha ◽  
Luca Sagresti ◽  
Esteban Araya-Hermosilla ◽  
Mirko Prato ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Large Scale ◽  
Cycloaddition Reaction ◽  
Diels Alder ◽  
Reduced Form ◽  
Graphene Nanocomposites ◽  
Exfoliated Graphene ◽  
Reduced Graphene ◽  
One Step

For large-scale graphene applications, such as the production of polymer-graphene nanocomposites, exfoliated graphene oxide (GO) and its reduced form (rGO) are presently considered very suitable starting material, showing enhanced chemical...

Tethering mesoporous Pd nanoparticles to reduced graphene oxide sheets forms highly efficient electrooxidation catalysts

2017 ◽  
Vol 5 (40) ◽  
pp. 21249-21256 ◽  
Author(s):  
Muhammad Iqbal ◽  
Cuiling Li ◽  
Bo Jiang ◽  
Md. Shahriar A. Hossain ◽  
Md. Tofazzal Islam ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Pd Nanoparticles ◽  
Solution Phase ◽  
Phase Synthesis ◽  
Highly Efficient ◽  
Reduced Graphene ◽  
Solution Phase Synthesis ◽  
Graphene Oxide Sheets

Uniformly sized mesoporous palladium (Pd) nanoparticles supported on reduced graphene oxide (rGO) surfaces can be prepared by solution phase synthesis.

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