![](/images/graphics-bg.png)
Preparation of Pore-Size Controllable Activated Carbon from Rice Husk Using Dual Activating Agent and Its Application in Supercapacitor
Joint Authors
Le Van, Khu
Luong Thi Thu, Thuy
Source
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-11, 11 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-01-15
Country of Publication
Egypt
No. of Pages
11
Main Subjects
Abstract EN
Activated carbons prepared from rice husk by chemical activation with dual activation agents, KOH and NaOH, have been studied and characterized by BET, SEM, EDX, FTIR, Boehm titration, Raman, and TGA.
It was found that the KOH/NaOH impregnation ratio plays an important role on textural properties of AC.
At the same amount of total alkali hydroxide, the KOH/NaOH ratio higher than 1.33 resulted in larger specific surface area (2990∼3043 m2·g−1), microporous surface area (2747∼2831 m2·g−1), and higher micropore volume (1.4250∼1.4316 cm3·g−1).
The as-prepared samples exist in the form of spherical-shaped particles with the size ranging from 20 to 60 nm and contain numerous surface functional groups.
The as-prepared activated carbons were then assessed as an electrode material of supercapacitor operating in the 0.5 M K2SO4 electrolyte in potential windows of −1.0∼0.0 V.
The highest capacitance obtained was 205 F·g−1 at the scan rate of 2 mV·s−1 and 225 F·g−1 at a current density of 0.2 A·g−1.
At the scan rate as high as 50 mV·s−1, all the as-prepared activated carbons in this study have the specific capacitance greater than 100 F·g−1.
American Psychological Association (APA)
Le Van, Khu& Luong Thi Thu, Thuy. 2019. Preparation of Pore-Size Controllable Activated Carbon from Rice Husk Using Dual Activating Agent and Its Application in Supercapacitor. Journal of Chemistry،Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1171026
Modern Language Association (MLA)
Le Van, Khu& Luong Thi Thu, Thuy. Preparation of Pore-Size Controllable Activated Carbon from Rice Husk Using Dual Activating Agent and Its Application in Supercapacitor. Journal of Chemistry No. 2019 (2019), pp.1-11.
https://search.emarefa.net/detail/BIM-1171026
American Medical Association (AMA)
Le Van, Khu& Luong Thi Thu, Thuy. Preparation of Pore-Size Controllable Activated Carbon from Rice Husk Using Dual Activating Agent and Its Application in Supercapacitor. Journal of Chemistry. 2019. Vol. 2019, no. 2019, pp.1-11.
https://search.emarefa.net/detail/BIM-1171026
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1171026