A 3D ordered hierarchically porous non-carbon electrode for highly effective and efficient capacitive deionization

2019 ◽  
Vol 7 (26) ◽  
pp. 15633-15639 ◽  
Author(s):  
Yuchen Wu ◽  
Gaopeng Jiang ◽  
Guihua Liu ◽  
Gregory Lui ◽  
Zachary Paul Cano ◽  
...  
Keyword(s):  
Titanium Nitride ◽  
Adsorption Capacity ◽  
Porous Titanium ◽  
Adsorption Rate ◽  
Carbon Electrode ◽  
Capacitive Deionization ◽  
Hierarchically Porous ◽  
Highly Effective ◽  
Ordered Porous

A nanoengineered 3D hierarchical ordered porous titanium nitride electrode is applied as an effective and efficient non-carbon electrode to deliver outstanding salt adsorption capacity and record-breaking salt adsorption rate in a capacitive deionization cell.

Approaching Ultrastable High‐Rate Li–S Batteries through Hierarchically Porous Titanium Nitride Synthesized by Multiscale Phase Separation

2018 ◽  
Vol 31 (3) ◽  
pp. 1806547 ◽  
Author(s):  
Won‐Gwang Lim ◽  
Changshin Jo ◽  
Ara Cho ◽  
Jongkook Hwang ◽  
Seongseop Kim ◽  
...  
Keyword(s):  
Phase Separation ◽  
Titanium Nitride ◽  
Porous Titanium ◽  
High Rate ◽  
Hierarchically Porous ◽  
Multiscale Phase Separation

Asymmetric configuration of pseudocapacitive composite and rGO electrodes for enhanced capacitive deionization

2020 ◽  
Vol 6 (2) ◽  
pp. 392-403 ◽  
Author(s):  
Hammad Younes ◽  
Linda Zou
Keyword(s):  
Adsorption Capacity ◽  
Adsorption Rate ◽  
Capacitive Deionization ◽  
Set Up ◽  
Asymmetric Configuration

Three different asymmetric electrode configurations were set up in CDI experiments. Each electrode pair's performance on salt adsorption capacity and average salt adsorption rate was investigated and compared.

scholarly journals Electrochemical Removal of Cesium Ions via Capacitive Deionization Using an Ion-Exchange Layer Coated on a Carbon Electrode

2021 ◽  
Vol 11 (21) ◽  
pp. 10042
Author(s):  
Sang-Hun Lee ◽  
Mansoo Choi ◽  
Jei-Kwon Moon ◽  
Songbok Lee ◽  
Jihoon Choi ◽  
...  
Keyword(s):  
Ion Exchange ◽  
Adsorption Capacity ◽  
Ph Value ◽  
Carbon Electrode ◽  
Capacitive Deionization ◽  
Exchange Layer ◽  
Ph Values ◽  
Influent Water ◽  
Electrochemical Removal ◽  
Cs Ions

This study was conducted to evaluate the feasibility of using electrosorption to remove cesium (Cs+) ions from aqueous solutions using the membrane capacitive deionization (MCDI) process. The electrochemical properties were analyzed using cyclic voltammetry (CV) and impedance spectroscopy (EIS). The activated carbon electrode coated by a polymer layer showed higher specific adsorption capacity (SAC) and removal efficiency of Cs+ than the AC electrode. The effects of potential, flow rate, initial Cs+ concentration, and pH values were investigated to optimize the electrosorption performance. The electrosorption capacity increased with an increase in the applied potential and the concentration of Cs+ in the influent water. The pH value is an important parameter on electrosorption performance. The removal of Cs+ ions was affected by the pH of the influent water because H+ ions acted as competing ions during the electrosorption process. Cs+ was preferentially adsorbed to the electrode in the early stages of adsorption but was later replaced by H+. A higher presence of H+ ions could reduce the adsorption capacity of Cs+ ions. The ion-exchange layer coated AC electrode was shown to be favorable for the removal of Cs+, despite the limited electrosorption ability in a highly acidic solution.

High Performance Hybrid Capacitive Deionization with Ag-coated Activated Carbon Electrode

2021 ◽  
Author(s):  
Hongsik Yoon ◽  
Jiho Lee ◽  
Taijin Min ◽  
Gunhee Lee ◽  
Minsub Oh
Keyword(s):  
Activated Carbon ◽  
Water Treatment ◽  
Industrial Application ◽  
High Performance ◽  
Treatment System ◽  
Carbon Electrode ◽  
Capacitive Deionization ◽  
Water Treatment System

Capacitive deionization (CDI) has been highlighted as a promising electrochemical water treatment system. However, the low deionization capacity of CDI electrodes has been a major limitation for its industrial application,...

Highly selective capacitive deionization of copper ions in FeS2@N, S co-doped carbon electrode from wastewater

2021 ◽  
Vol 262 ◽  
pp. 118336
Author(s):  
Yong Gao ◽  
Zhaolei Li ◽  
Zhen Fu ◽  
Haimin Zhang ◽  
Guozhong Wang ◽  
...  
Keyword(s):  
Copper Ions ◽  
Carbon Electrode ◽  
Capacitive Deionization ◽  
Co Doped
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