Evaluation of long-term stability in capacitive deionization using activated carbon electrodes coated with ion exchange polymers

2020 ◽  
Vol 37 (7) ◽  
pp. 1199-1205 ◽  
Author(s):  
Kyusik Jo ◽  
Youngbin Baek ◽  
Seoni Kim ◽  
Sung Pil Hong ◽  
Jeyong Yoon
Keyword(s):  
Activated Carbon ◽  
Ion Exchange ◽  
Carbon Electrodes ◽  
Capacitive Deionization ◽  
Term Stability ◽  
Long Term Stability

Improved performance and long-term stability of activated carbon doped with nitrogen for capacitive deionization

Desalination ◽  
2020 ◽  
Vol 481 ◽  
pp. 114362 ◽  
Author(s):  
Chun-Chia Hsu ◽  
Yi-Heng Tu ◽  
Yu-Hsiang Yang ◽  
Jeng-An Wang ◽  
Chi-Chang Hu
Keyword(s):  
Activated Carbon ◽  
Capacitive Deionization ◽  
Carbon Doped ◽  
Term Stability ◽  
Long Term Stability ◽  
Improved Performance

Evaluation of long term stability of seeded bacteria in a bio-enhanced activated carbon filter used for treating drinking water

2013 ◽  
Vol 85 ◽  
pp. 701-708 ◽  
Author(s):  
Duo-Ying Zhang ◽  
Wei-Guang Li ◽  
Hai-Nan Gong ◽  
Lei Zhang ◽  
Xu-Jin Gong ◽  
...  
Keyword(s):  
Drinking Water ◽  
Activated Carbon ◽  
Term Stability ◽  
Long Term Stability ◽  
Activated Carbon Filter ◽  
Carbon Filter

High-performance all solid-state micro-supercapacitor based on patterned photoresist-derived porous carbon electrodes and an ionogel electrolyte

2014 ◽  
Vol 2 (21) ◽  
pp. 7997-8002 ◽  
Author(s):  
Shuang Wang ◽  
Ben Hsia ◽  
Carlo Carraro ◽  
Roya Maboudian
Keyword(s):  
Solid State ◽  
Specific Energy ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Electrodes ◽  
Term Stability ◽  
Long Term Stability ◽  
Porous Carbon Electrodes ◽  
High Specific Energy

An all solid-state micro-supercapacitor is fabricated using patterned photoresist-derived porous carbon electrodes and an ionogel electrolyte. Excellent long-term stability and high specific energy are obtained.

scholarly journals Effect of Hydrophilicity of Activated Carbon Electrodes on Desalination Performance in Membrane Capacitive Deionization

2019 ◽  
Vol 9 (23) ◽  
pp. 5055 ◽  
Author(s):  
Kyusik Jo ◽  
Youngbin Baek ◽  
Changha Lee ◽  
Jeyong Yoon
Keyword(s):  
Activated Carbon ◽  
Ion Exchange ◽  
Surface Chemistry ◽  
Specific Surface ◽  
Electrode Materials ◽  
Carbon Electrodes ◽  
Water Molecules ◽  
Capacitive Deionization ◽  
Surface Areas ◽  
Specific Surface Areas

Membrane capacitive deionization (MCDI) is a modification of capacitive deionization (CDI) using ion-exchange membranes (IEM) in front of the electrodes. Electrode properties, especially the specific surface area, are known to be strongly related with desalination performance in CDI, but the effects of other properties in MCDI are not fully understood. The objective of this study was to investigate the effect of hydrophilicity in activated carbon electrodes on desalination performance in MCDI. Two types of activated carbon (P60 and YS-2) whose specific surface areas were similar were used as electrode materials, but they had different hydrophilicity (i.e., P60 was originally hydrophobic and YS-2 was relatively hydrophilic due to its nitrogen-containing surface chemistry). These hydrophilic electrodes (either the electrode itself or modified with polydopamine (PDA)) led to an increase in the salt adsorption capacity (SAC) in MCDI because they facilitated the access of both ions and water molecules into the electrode pores. In particular, the SAC of the P60 electrode displayed a large increase to almost reach that of the YS-2 electrode due to the improved hydrophilicity with PDA modification and the insignificant effects of PDA modification on an already hydrophilic YS-2 electrode. Additionally, PDA-modified IEM in MCDI reduced the SAC as a result of the additional insulating PDA layer with little changes in hydrophilicity.

Free-standing 3D alkalized Ti3C2Tx/Ti3C2Tx nanosheet membrane electrode for highly efficient and stable desalination in hybrid capacitive deionization

2020 ◽  
Vol 8 (37) ◽  
pp. 19309-19318
Author(s):  
Xiaojie Shen ◽  
Reti Hai ◽  
Xiaohui Wang ◽  
Yuan Li ◽  
Yayi Wang ◽  
...  
Keyword(s):  
Membrane Electrode ◽  
Capacitive Deionization ◽  
Free Standing ◽  
Term Stability ◽  
Long Term Stability ◽  
Highly Efficient

We prepared a 3D porous rumpled Alk-MXene/2D-MXene membrane electrode to improve CDI performance and obtain long-term stability.

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