scholarly journals Production of Activated Carbon Electrode for Energy Storage Application in Supercapacitors via KOH Activation of Waste Termite Biomass

2022 ◽  
Author(s):  
Godwin Mong Kalu-Uka ◽  
Shubham Kumar ◽  
Abraham Chinedu Kalu-Uka ◽  
Shruti Vikram ◽  
Gina Odochi Ihekweme ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Koh Activation ◽  
Carbon Electrode ◽  
Energy Storage Application

scholarly journals Production of Activated Carbon Electrode for Energy Storage Application in Supercapacitors via KOH Activation of Waste Termite Biomass

2021 ◽  
Author(s):  
Godwin Mong Kalu-Uka ◽  
Shubham Kumar ◽  
Abraham Chinedu Kalu-Uka ◽  
Shruti Vikram ◽  
Gina Odochi Ihekweme ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Specific Capacitance ◽  
Global Economy ◽  
Electrochemical Impedance ◽  
Koh Activation ◽  
Activation Process ◽  
Carbon Electrode ◽  
Xps Characterization ◽  
One Step

Abstract The devastating effects of termites on wood and the contribution of termite activities to the rising levels of atmospheric CO2 and CH4 constitute a serious threat to global economy and the ozone layer. In order to stall the contribution of termites to the rising levels of greenhouse gases, this work considers the conversion of termite biomass to activated carbon electrode. The waste termite biomass obtained during the production of termite biodiesel was converted to activated carbon electrode by a one-step carbonization-activation process, using potassium hydroxide as activating agent. The optimal specific surface area of the activated carbon was recorded at 900 oC, 9 h and 3:1 KOH-biomass ratio. The surface morphology and functionalization of the activated carbon were examined using the SEM, TEM, XRD, Raman and XPS characterization techniques. The electrochemical performance of the activated carbon electrode was tested in aqueous (1 M H2SO4) and ionic liquid (1 M EMImBF4) electrolytes. Results obtained from cyclic voltammetry, galvanostatic charge-discharge and electrochemical impedance experiments showed that the specific capacitance of the activated carbon electrode was higher in 1 M H2SO4 (78 Fg-1 at 0.5 Ag-1) than in 1 M EMImBF4 (53 Fg-1 at 0.5 Ag-1). However, after completing 10, 000 chare-discharge cycles at 10 Ag-1, the activated carbon electrode lost ~ 5% of its specific capacitance in 1 M H2SO4 and ~ 2% of its capacitance in 1 M EMImBF4. Overall, the results showed that waste termite biomass could be valorised in the production of activated carbon for energy storage in supercapacitors.

Electrochemical Characteristics and Microstructures of Activated Carbon Powder Supercapacitors for Energy Storage

2018 ◽  
Vol 930 ◽  
pp. 597-602 ◽  
Author(s):  
Tayara Correia Gonsalves ◽  
Franks Martins Silva ◽  
Ligia Silverio Vieira ◽  
Julio Cesar Serafim Casini ◽  
Rubens Nunes de Faria
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Room Temperature ◽  
Electrode Materials ◽  
Freezing Point ◽  
Storage Period ◽  
Carbon Powder ◽  
Electrochemical Characteristics ◽  
Carbon Electrode ◽  
Discharge Characteristics

In recent years, extensive investigations have focused on the study and improvement of supercapacitor electrode materials. The electric devices produced with these materials are used to store energy over time periods ranging from seconds to several days. The main factor that determines the energy storage period of a supercapacitor is its self-discharge rate, i.e., the gradual decrease in electric potential that occurs when the supercapacitor terminals are not connected to either a charging circuit or electric load. Self-discharge is attenuated at lower temperatures, resulting in an increased energy storage period. This paper addresses the temperature-dependence of self-discharge via a systematic study of supercapacitors with nominal capacitances of 1.0 and 10.0 F at DC potentials of 5.5 and 2.7 V, respectively. The specific capacitances, internal resistances, and self-discharge characteristics of commercial activated carbon electrode supercapacitors were investigated. Using cyclic voltammetry, the specific capacitances were determined to be 44.4 and 66.7 Fg−1 for distinct carbon electrode supercapacitors. The self-discharge characteristics were investigated at both room temperature and close to the freezing point. The internal resistances of the supercapacitors were calculated using the discharge curves at room temperature. The microstructures of the electrode materials were determined using scanning electron microscopy.

scholarly journals TIRE WASTE AS A POTENTIAL MATERIAL FOR CARBON ELECTRODE FABRICATION: A REVIEW

SINERGI ◽  
2020 ◽  
Vol 25 (1) ◽  
pp. 1
Author(s):  
Ahmad Ariri ◽  
Sagir Alva ◽  
Siti Aishah Hasbullah
Keyword(s):  
Energy Storage ◽  
Fuel Cell ◽  
Environmental Impact ◽  
Rapid Growth ◽  
Review Paper ◽  
Carbon Electrode ◽  
Paper Production ◽  
Energy Storage Application ◽  
Electrode Fabrication

Nowadays, tire waste is a big issue since the rapid growth of vehicle population worldwide. The disposal of tire waste should be done properly due to the environmental impact caused by stockpile the tire waste in landfill.  Many kinds of research had been conducted to dispose of tire waste efficiently for getting valuable material from tire waste by using pyrolysis technology; one of them is carbon. In this review paper, production and application of carbon from tire waste presented. In several studies, carbon derived from tire waste was used as an adsorbent, electrode in energy storage application, like batteries and fuel cell.

scholarly journals Enhancing water adsorption capacity of acorn nutshell based activated carbon for adsorption thermal energy storage application

2020 ◽  
Vol 6 ◽  
pp. 255-263
Author(s):  
Chairunnisa ◽  
František Mikšík ◽  
Takahiko Miyazaki ◽  
Kyaw Thu ◽  
Jin Miyawaki ◽  
...  
Keyword(s):  
Activated Carbon ◽  
Energy Storage ◽  
Adsorption Capacity ◽  
Thermal Energy ◽  
Thermal Energy Storage ◽  
Water Adsorption ◽  
Energy Storage Application

Probe on hard carbon electrode derived from orange peel for energy storage application

2021 ◽  
Author(s):  
T. Meenatchi ◽  
V. Priyanka ◽  
R. Subadevi ◽  
Wei-Ren Liu ◽  
Chia-Hung Huang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Orange Peel ◽  
Carbon Electrode ◽  
Hard Carbon ◽  
Energy Storage Application

Biowaste-originated heteroatom-doped porous carbonaceous material for electrochemical energy storage application

2021 ◽  
Author(s):  
Atchudan Raji ◽  
Jebakumar Immanuel Edison Thomas Nesakumar ◽  
Shanmugam Mani ◽  
Suguna Perumal ◽  
Vinodh Rajangam ◽  
...  
Keyword(s):  
Energy Storage ◽  
Carbonaceous Material ◽  
Electrochemical Energy Storage ◽  
Energy Storage Application ◽  
Electrochemical Energy

Electrospun flexible 1D-MnO2 nanofibres: a versatile material for energy storage application

2021 ◽  
Author(s):  
A. S. Salunkhe ◽  
Y. H. Navale ◽  
S. T. Navale ◽  
D. Y. Nadargi ◽  
V. B. Patil
Keyword(s):  
Energy Storage ◽  
Energy Storage Application
Sign in / Sign up

Export Citation Format

Share Document