Review on carbon-based composite materials for capacitive deionization

RSC Advances ◽  
2015 ◽  
Vol 5 (20) ◽  
pp. 15205-15225 ◽  
Author(s):  
Yong Liu ◽  
Chunyang Nie ◽  
Xinjuan Liu ◽  
Xingtao Xu ◽  
Zhuo Sun ◽  
...  

Carbon-based composite electrode materials, including carbon–carbon, carbon–metal oxide, carbon–polymer and carbon–polymer–metal oxide for efficient capacitive deionization are summarized.

Author(s):  
Batya A. Fellman ◽  
Muataz Atieh ◽  
Evelyn N. Wang

In capacitive deionization (CDI), salt water is passed through two polarized electrodes, whereby the salt is adsorbed onto the electrode surface and removed from the water stream. This approach has received renewed interest for water desalination due to the development of new high-surface area carbon-based nanomaterials. However, there is currently limited understanding as to how electrode geometry, surface properties, and capacitance affect ion capture. In this work, we experimentally investigate various standard carbon-based electrode materials, including activated carbon and carbon cloths, as well as microfabricated silicon structures for CDI. Electrochemical characterization through cyclic voltammetry was used to determine the electrochemical properties of each material. In addition, a mini-channel test cell was fabricated to perform parametric studies on ion capture. By controlling electrode geometry and chemistry in these studies, the work helps elucidate transport mechanisms and provide insight into the design of optimal materials for capacitive deionization.


Nano Energy ◽  
2012 ◽  
Vol 1 (1) ◽  
pp. 107-131 ◽  
Author(s):  
Zhong-Shuai Wu ◽  
Guangmin Zhou ◽  
Li-Chang Yin ◽  
Wencai Ren ◽  
Feng Li ◽  
...  

NANO ◽  
2014 ◽  
Vol 09 (06) ◽  
pp. 1430002 ◽  
Author(s):  
M. Y. HO ◽  
P. S. KHIEW ◽  
D. ISA ◽  
T. K. TAN ◽  
W. S. CHIU ◽  
...  

With the emerging technology in the 21st century, which requires higher electrochemical performances, metal oxide composite electrodes in particular offer complementary properties of individual materials via the incorporation of both physical and chemical charge storage mechanism together in a single electrode. Numerous works reviewed herein have identified a wide variety of attractive metal oxide-based composite electrode material for symmetric and asymmetric electrochemical capacitors. The focus of the review is the detailed literature data and discussion regarding the electrochemical performance of various metal oxide composite electrodes fabricated from different configurations including binary and ternary composites. Additionally, projection of future development in hybrid capacitor coupling lithium metal oxides and carbonaceous materials are found to obtain significantly higher energy storage than currently available commercial electrochemical capacitors. This review describes the novel concept of lithium metal oxide electrode materials which are of value to researchers in developing high-energy and enhanced-cyclability electrochemical capacitors comparable to Li -ion batteries. In order to fully exploit the potential of metal oxide composite electrode materials, developing low cost, environment-friendly nanocomposite electrodes is certainly a research direction that should be extensively investigated in the future.


Author(s):  
liji Bai ◽  
shaojina ma ◽  
xiujuan su ◽  
xianfei huang

Fe3O4/C composite materials have the advantages of both carbon-based materials and ferrosoferric oxide that more and more attention has been paid by people. Carbon-based materials have adjustable interface engineering, high specific surface area, high dielectric loss, and light weight and ferrosoferric oxide raw materials are easily obtained which have high magnetic sensitivity, easy surface functional modification and low toxicity.According to more than 200 papers published in the past 15 years, this article systematically analyzed and summarized the preparation, characterization and application of Fe3O4/C composite materials. Arc discharge method, hydrothermal method, solvothermal method, co-precipitation method and pyrolysis method were commonly used methods for preparing Fe3O4/C Ccomposite materials.Fe3O4/C composite materials could absorb heavy metal impurities in water, for example, lead, mercury, cadmium, Chromium, arsenic, etc., impurity, lead was the most common. the treatment of wastewater containing organic dyes, catalysts and activators, electrode materials and absorbing materials have been widely used.


2013 ◽  
Vol 20 (06) ◽  
pp. 1330003 ◽  
Author(s):  
WEI HUANG ◽  
YIMIN ZHANG ◽  
SHENXU BAO ◽  
SHAOXIAN SONG

Capacitive deionization (CDI) is a recently developed electrosorption technology for deionization using porous electrodes. The electrode materials play an important role in the efficiency. This paper highlights the current research status of carbon-based materials as the electrode and the adsorption models in the CDI. It includes the types and performances of carbon-based materials and the main influencing factors of the desalination characteristics. Also, operating parameters such as charging voltage, flow rate, concentration of feed solution, treating time and temperature are summarized.


Carbon ◽  
2005 ◽  
Vol 43 (5) ◽  
pp. 923-936 ◽  
Author(s):  
A. Concheso ◽  
R. Santamaría ◽  
C. Blanco ◽  
R. Menéndez ◽  
J.M. Jiménez-Mateos ◽  
...  

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