Kurniawan, Fredi, Wongso, Michael, Ayucitra, Aning, Soetaredjo, Felycia Edi, Angkawijaya, Artik Elisa, Yi-Hsu, Ju and Ismadji, Suryadi (2015) Carbon microsphere from water hyacinth for supercapacitor electrode. Journal of the Taiwan Institute of Chemical Engineers, 47. pp. 197-201. ISSN 1876-1070
Preview |
Text (Carbon microsphere from water hyacinth for supercapacitor electrodeCarbon microsphere from water hyacinth for supercapacitor electrode)
Journal of the Taiwan Institute of Chemical Engineers 47 (2015) 197–201.pdf Download (573kB) | Preview |
Preview |
Text
Reviewer 1 dan 2-59.pdf Download (1MB) | Preview |
Preview |
Text (Carbon microsphere from water hyacinth for supercapacitor electrodeCarbon microsphere from water hyacinth for supercapacitor electrode)
Plagiarisme check - III.A.1.b.1-59.pdf Download (162kB) | Preview |
Preview |
Text (Carbon microsphere from water hyacinth for supercapacitor electrode_peer_review)
59-R1&2_Carbon_microsphere_.pdf Download (308kB) | Preview |
Abstract
In this study, water hyacinth was hydrolyzed to sugars with dilute sulphuric acid (0.25 M) under subcritical water conditions (P = 20 bar, T = 130 8C) for 2 h. The sugar solution was then carbonized under subcritical conditions to produce carbon microsphere. The subcritical water carbonization was conducted at 40 bar and various temperatures (160–200 8C) and times (6–10 h). The highest yield of carbon microspheres was 0.1019 g/g dry water hyacinth at the temperature of 200 8C for 10 h. The carbon microsphere was activated using a combination of chemical (KOH solution) and physical (microwave) treatments to increase the specific surface area and porosity of carbon microsphere. Electrocapacitive study of carbon microspheres showed that the carbon microsphere activated at impregnation ratio of 1:1 and microwave power of 630 W has the highest specific capacitance and excellent electrochemical stability.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | Carbon microsphere Subcritical water hydrolysis Subcritical water carbonization Microwave activation |
| Subjects: | Engineering Engineering > Chemical Engineering |
| Divisions: | Faculty of Engineering > Chemical Engineering Study Program |
| Depositing User: | Suryadi. Ismadji |
| Date Deposited: | 22 Jan 2016 06:34 |
| Last Modified: | 19 Jul 2018 08:30 |
| URI: | http://repository.ukwms.ac.id/id/eprint/4179 |
Actions (login required)
 |
View Item |