Dielectric environment as a factor to enhance the production yield of solvent exfoliated graphene

RSC Advances ◽  
2015 ◽  
Vol 5 (79) ◽  
pp. 64395-64403 ◽  
Author(s):  
Pawan Kumar Srivastava ◽  
Premlata Yadav ◽  
Subhasis Ghosh

High yield production of high quality graphene is essential for its application in electronics, optoelectronics and energy storage devices.

Author(s):  
Dipanwita Majumdar

Polyaniline in various forms has been widely explored as an electrode material for supercapacitors due to its high theoretical charge storage capacity, facile-cost-effective synthesis, good mechanical strength and ultrafast charge transport. However, commercialization of such pristine forms is very much restricted by low solubilities, rapid agglomeration during device design accompanied by poor electrochemical life and fast environmental decomposition. The blending with nano-carbon materials, metal oxides and other competent materials, may result in high quality materials– “nanocomposites” with superior features is ideally fit for future generation energy storage devices. The present chapter deals with detailed discussions on designing, the fabrication of such binary and ternary nanocomposites, correlating their morphology with electrochemical behavior, so as to optimize their supercapacitive performances. Such an attempt would help to outline the present status and future aspects of these materials which will be of first-hand assistance especially to the beginners to this field of research.


2018 ◽  
Vol 5 (5) ◽  
pp. 890-904 ◽  
Author(s):  
A. E. Del Rio Castillo ◽  
V. Pellegrini ◽  
A. Ansaldo ◽  
F. Ricciardella ◽  
H. Sun ◽  
...  

A novel liquid-phase exfoliation of layered crystals enables the production of defect-free and high quality 2D-crystal dispersions on a large scale.


2017 ◽  
Vol 19 (45) ◽  
pp. 30381-30392 ◽  
Author(s):  
Nurlia P. Sari ◽  
Dipak Dutta ◽  
Anif Jamaluddin ◽  
Jeng-Kuei Chang ◽  
Ching-Yuan Su

We present here, a concentration dependent freeze-dry technique to obtain 3D graphene architectures with predetermined micron sized macropores and multimodal hierarchical nanopores for electrodes in flexible energy storage devices.


Nanoscale ◽  
2019 ◽  
Vol 11 (24) ◽  
pp. 11719-11729 ◽  
Author(s):  
Xuezhu Xu ◽  
You-Lo Hsieh

Graphene is a promising material for diverse applications, such as in composites, optoelectronics, photovoltaic cells, and energy storage devices.


2015 ◽  
Vol 51 (14) ◽  
pp. 2806-2809 ◽  
Author(s):  
Zhe Ji ◽  
Ji Chen ◽  
Liang Huang ◽  
Gaoquan Shi

A reversible covalent strategy based on the Diels–Alder reaction of graphite and tetracyanoethylene has been developed for the high-yield production of high-quality few-layer graphene.


2017 ◽  
Vol 6 (6) ◽  
pp. M3035-M3048 ◽  
Author(s):  
Mohd Asyadi Azam ◽  
Nor Najihah Zulkapli ◽  
Norasimah Dorah ◽  
Raja Noor Amalina Raja Seman ◽  
Mohd Hanafi Ani ◽  
...  

Author(s):  
Dipanwita Majumdar

Polyaniline in various forms has been widely explored as an electrode material for supercapacitors due to its high theoretical charge storage capacity, facile-cost-effective synthesis, good mechanical strength and ultrafast charge transport. However, commercialization of such pristine forms is very much restricted by low solubilities, rapid agglomeration during device design accompanied by poor electrochemical life and fast environmental decomposition. The blending with nano-carbon materials, metal oxides and other competent materials, may result in high quality materials– “nanocomposites” with superior features is ideally fit for future generation energy storage devices. The present chapter deals with detailed discussions on designing, the fabrication of such binary and ternary nanocomposites, correlating their morphology with electrochemical behavior, so as to optimize their supercapacitive performances. Such an attempt would help to outline the present status and future aspects of these materials which will be of first-hand assistance especially to the beginners to this field of research.


Nanoscale ◽  
2015 ◽  
Vol 7 (37) ◽  
pp. 15362-15373 ◽  
Author(s):  
Chia-Hsuan Chen ◽  
Shiou-Wen Yang ◽  
Min-Chiang Chuang ◽  
Wei-Yen Woon ◽  
Ching-Yuan Su

A fast and continuous electrochemical method with melamine additives is able to efficiently exfoliate graphite into high-quality graphene sheets. The hydrophilic force facilitated exfoliation and protection, leading to high yield production of larger size crystallinity of graphene sheets.


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