High yield and high concentration few-layer graphene sheets using solvent exfoliation of graphite with pre-thermal treatment in a sealed bath

2014 ◽  
Vol 123 ◽  
pp. 90-92 ◽  
Author(s):  
Muhammad Mohsin Hossain ◽  
Ok-Kyung Park ◽  
Jae Ryang Hahn ◽  
Bon-Cheol Ku
Keyword(s):  
Thermal Treatment ◽  
High Yield ◽  
Graphene Sheets ◽  
High Concentration ◽  
Layer Graphene ◽  
Few Layer Graphene

scholarly journals High concentration few-layer graphene sheets obtained by liquid phase exfoliation of graphite in ionic liquid

2011 ◽  
Vol 21 (10) ◽  
pp. 3428-3431 ◽  
Author(s):  
Daniele Nuvoli ◽  
Luca Valentini ◽  
Valeria Alzari ◽  
Sergio Scognamillo ◽  
Silvia Bittolo Bon ◽  
...  
Keyword(s):  
Ionic Liquid ◽  
Liquid Phase ◽  
Graphene Sheets ◽  
High Concentration ◽  
Layer Graphene ◽  
Liquid Phase Exfoliation ◽  
Few Layer Graphene

Direct exfoliation of the anode graphite of used Li-ion batteries into few-layer graphene sheets: a green and high yield route to high-quality graphene preparation

2017 ◽  
Vol 5 (12) ◽  
pp. 5880-5885 ◽  
Author(s):  
Xifan Chen ◽  
Yuanzhi Zhu ◽  
Wenchao Peng ◽  
Yang Li ◽  
GuoLiang Zhang ◽  
...  
Keyword(s):  
High Yield ◽  
Graphene Sheets ◽  
Li Ion Batteries ◽  
High Quality ◽  
Layer Graphene ◽  
Li Ion ◽  
Few Layer Graphene

High-quality graphene is efficiently prepared by the direct exfoliation of the anode graphite of used Li-ion batteries.

2D porous carbon nanosheets constructed using few-layer graphene sheets by a “medium-up” strategy for ultrahigh power-output EDLCs

2018 ◽  
Vol 6 (22) ◽  
pp. 10331-10339 ◽  
Author(s):  
Panpan Chang ◽  
Kazuki Matsumura ◽  
Jizong Zhang ◽  
Jie Qi ◽  
Chengyang Wang ◽  
...  
Keyword(s):  
Double Layer ◽  
Power Output ◽  
Porous Carbon ◽  
Electric Double Layer ◽  
Graphene Sheets ◽  
Carbon Nanosheets ◽  
Layer Graphene ◽  
Few Layer Graphene ◽  
Double Layer Capacitors ◽  
Electric Double Layer Capacitors

2D porous carbon nanosheets (PCNs) occupy the foreground in the field of electric double-layer capacitors (EDLCs).

scholarly journals Biocarbon Meets Carbon—Humic Acid/Graphite Electrodes Formed by Mechanochemistry

Materials ◽  
2019 ◽  
Vol 12 (24) ◽  
pp. 4032
Author(s):  
Lianlian Liu ◽  
Niclas Solin ◽  
Olle Inganäs
Keyword(s):  
Humic Acid ◽  
Low Cost ◽  
Graphene Sheets ◽  
Mechanochemical Method ◽  
Graphite Electrodes ◽  
Conductive Materials ◽  
Layer Graphene ◽  
Redox Active ◽  
Few Layer Graphene ◽  
Alcoholic Hydroxyl

Humic acid (HA) is a biopolymer formed from degraded plants, making it a ubiquitous, renewable, sustainable, and low cost source of biocarbon materials. HA contains abundant functional groups, such as carboxyl-, phenolic/alcoholic hydroxyl-, ketone-, and quinone/hydroquinone (Q/QH2)-groups. The presence of Q/QH2 groups makes HA redox active and, accordingly, HA is a candidate material for energy storage. However, as HA is an electronic insulator, it is essential to combine it with conductive materials in order to enable fabrication of HA electrodes. One of the lowest cost types of conductive materials that can be considered is carbon-based conductors such as graphite. Herein, we develop a facile method allowing the biocarbon to meet carbon; HA (in the form of a sodium salt) is mixed with graphite by a solvent-free mechanochemical method involving ball milling. Few-layer graphene sheets are formed and the HA/graphite mixtures can be used to fabricate HA/graphite hybrid material electrodes. These electrodes exhibit a conductivity of up to 160 S·m−1 and a discharge capacity as large as 20 mAhg−1. Our study demonstrates a novel methodology enabling scalable fabrication of low cost and sustainable organic electrodes for application as supercapacitors.

scholarly journals Oxygen-Functionalized Few-Layer Graphene Sheets as Active Catalysts for Oxidative Dehydrogenation Reactions

ChemSusChem ◽  
2013 ◽  
Vol 6 (5) ◽  
pp. 732-732
Author(s):  
Viviane Schwartz ◽  
Wujun Fu ◽  
Yu-Tung Tsai ◽  
Harry M. Meyer ◽  
Adam J. Rondinone ◽  
...  
Keyword(s):  
Oxidative Dehydrogenation ◽  
Graphene Sheets ◽  
Layer Graphene ◽  
Dehydrogenation Reactions ◽  
Few Layer Graphene

scholarly journals High yield production and purification of few layer graphene by Gum Arabic assisted physical sonication

2013 ◽  
Vol 3 (1) ◽  
Author(s):  
Victor Chabot ◽  
Brian Kim ◽  
Brent Sloper ◽  
Costas Tzoganakis ◽  
Aiping Yu
Keyword(s):  
Gum Arabic ◽  
High Yield ◽  
Layer Graphene ◽  
Yield Production ◽  
Few Layer Graphene ◽  
High Yield Production
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