Investigating effectiveness of activated carbons of natural sources on various supercapacitors

Md. Shahnewaz Sabit Faisal; Muhammad M. Rahman; Ramazan Asmatulu

doi:10.1117/12.2235282

1 April 2016 Investigating effectiveness of activated carbons of natural sources on various supercapacitors

Md. Shahnewaz Sabit Faisal, Muhammad M. Rahman, Ramazan Asmatulu

Proceedings Volume 9806, Smart Materials and Nondestructive Evaluation for Energy Systems 2016; 980604 (2016) https://doi.org/10.1117/12.2235282
Event: SPIE Smart Structures and Materials + Nondestructive Evaluation and Health Monitoring, 2016, Las Vegas, Nevada, United States

Abstract

Activated carbon can be produced from natural sources, such as pistachio and acorn shells, which can be an inexpensive and sustainable sources of natural wastes for the energy storage devices, such as supercapacitors. The carbonaceous materials used in this study were carbonized at the temperatures of 700°C and 900°C after the stabilization process at 240°C for two hours. These shells showed approximately 60% carbon yield. Carbonized nutshells were chemically activated using1wt% potassium hydroxide (KOH). Activated carbon powders with polyvinylidene fluoride (PVdF) were used to construct carbon electrodes. A 1M of tetraethylammonium tetrafluoroborate (TEABF₄) and propylene carbonate (PC) were used as electrolytes. Electrochemical techniques, such as cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) were used for the characterization of the supercapacitors. Scanning electron microscopy (SEM) was used to inspect the surface texture of the activated carbons. Activated pistachio shells carbonized at 700°C showed more porous surface texture than those carbonized at 900°C. Effects of the carbonization temperatures were studied for their electrochemical characteristics. The shells carbonized at 700°C showed better electrochemical characteristics compared to those carbonized at 900°C. The test results provided about 27,083 μF/g specific capacitance at a scan rate of 10mV/s. This study showed promising results for using these activated carbons produced from the natural wastes for supercapacitor applications.

Conference Presentation

Citation Download Citation

Md. Shahnewaz Sabit Faisal, Muhammad M. Rahman, and Ramazan Asmatulu "Investigating effectiveness of activated carbons of natural sources on various supercapacitors", Proc. SPIE 9806, Smart Materials and Nondestructive Evaluation for Energy Systems 2016, 980604 (1 April 2016); https://doi.org/10.1117/12.2235282

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available