scholarly journals Nano-manganese oxide and reduced graphene oxide incorporated polyacrylonitrile fiber mats as electrode material for capacitive deionization (CDI) technology

2021 ◽  
Author(s):  
Nalin De Silva ◽  
Induni Siriwardena ◽  
Nadeesha P. W. Rathuwadu ◽  
Damayanthi Dahanayake ◽  
Chanaka Sandaruwan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Manganese Dioxide ◽  
Reduced Graphene Oxide ◽  
Electrode Material ◽  
Water Desalination ◽  
Polyacrylonitrile Fiber ◽  
Capacitive Deionization ◽  
Fiber Mats ◽  
Reduced Graphene ◽  
Impurity Ions

Capacitive deionization (CDI) is a trending water desalination method, during which the impurity ions in water can be removed by electrosorption. In this study, nano-manganese dioxide (MnO2) and reduced graphene...

Manganese dioxide/ reduced graphene oxide composite an electrode material for high-performance solid state supercapacitor

2019 ◽  
Vol 299 ◽  
pp. 34-44 ◽  
Author(s):  
Sarika Jadhav ◽  
Ramchandra S. Kalubarme ◽  
Chiaki Terashima ◽  
Bharat B. Kale ◽  
Vijay Godbole ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Solid State ◽  
Manganese Dioxide ◽  
Reduced Graphene Oxide ◽  
Electrode Material ◽  
High Performance ◽  
Oxide Composite ◽  
Reduced Graphene

TiO2 nanorod-intercalated reduced graphene oxide as high performance electrode material for membrane capacitive deionization

Desalination ◽  
2015 ◽  
Vol 361 ◽  
pp. 53-64 ◽  
Author(s):  
Ahmed G. El-Deen ◽  
Jae-Hwan Choi ◽  
Cheol Sang Kim ◽  
Khalil Abdelrazek Khalil ◽  
Abdulhakim A. Almajid ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
Electrode Material ◽  
High Performance ◽  
Capacitive Deionization ◽  
Tio2 Nanorod ◽  
Reduced Graphene

scholarly journals Activated Carbon Blended with Reduced Graphene Oxide Nanoflakes for Capacitive Deionization

Nanomaterials ◽  
2021 ◽  
Vol 11 (5) ◽  
pp. 1090
Author(s):  
Gbenro Folaranmi ◽  
Mikhael Bechelany ◽  
Philippe Sistat ◽  
Marc Cretin ◽  
Francois Zaviska
Keyword(s):  
Graphene Oxide ◽  
Activated Carbon ◽  
Reduced Graphene Oxide ◽  
Electrode Materials ◽  
Porous Electrodes ◽  
Water Desalination ◽  
Operating Voltage ◽  
Capacitive Deionization ◽  
X Ray ◽  
Reduced Graphene

Capacitive deionization is a second-generation water desalination technology in which porous electrodes (activated carbon materials) are used to temporarily store ions. In this technology, porous carbon used as electrodes have inherent limitations, such as low electrical conductivity, low capacitance, etc., and, as such, optimization of electrode materials by rational design to obtain hybrid electrodes is key towards improvement in desalination performance. In this work, different compositions of mixture of reduced graphene oxide (RGO) and activated carbon (from 5 to 20 wt% RGO) have been prepared and tested as electrodes for brackish water desalination. The physico-chemical and electrochemical properties of the activated carbon (AC), reduced graphene oxide (RGO), and as-prepared electrodes (AC/RGO-x) were characterized by low-temperature nitrogen adsorption measurement, scanning electron microscope (SEM), X-ray diffraction (XRD), Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), Fourier transform infra-red (FT-IR), cyclic voltammetry (CV), and electrochemical impedance spectroscopy (EIS). Among all the composite electrodes, AC/RGO-5 (RGO at 5 wt%) possessed the highest specific capacitance (74 F g−1) and the highest maximum salt adsorption capacity (mSAC) of 8.10 mg g−1 at an operating voltage ∆E = 1.4 V. This shows that this simple approach could offer a potential way of fabricating electrodes of accentuated carbon network of an improved electronic conductivity that’s much coveted in CDI technology.

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