Cross Effect of Surface Area and Electrical Conductivity for Carbonaceous Materials in Flow-electrode Capacitive Mixing (F-CapMix) and Flow-electrode Capacitive Deionization (FCDI): Solid-like Behavior of Flow-electrodeClick to copy article linkArticle link copied!
- Insung HwangInsung HwangDepartment of Energy Engineering, Hanyang University, Seoul 04763, Republic of KoreaMore by Insung Hwang
- Dongsoo LeeDongsoo LeeDepartment of Energy Engineering, Hanyang University, Seoul 04763, Republic of KoreaMore by Dongsoo Lee
- Yongmin JungYongmin JungDepartment of Energy Engineering, Hanyang University, Seoul 04763, Republic of KoreaMore by Yongmin Jung
- Keemin ParkKeemin ParkDepartment of Energy Engineering, Hanyang University, Seoul 04763, Republic of KoreaMore by Keemin Park
- Yeon-Gil JungYeon-Gil JungSchool of Materials Science and Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of KoreaDepartment of Materials Convergence and System Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of KoreaMore by Yeon-Gil Jung
- Donghyun KimDonghyun KimSchool of Materials Science and Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of KoreaDepartment of Materials Convergence and System Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of KoreaMore by Donghyun Kim
- Geun-Ho ChoGeun-Ho ChoSchool of Materials Science and Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of KoreaMore by Geun-Ho Cho
- Sung-il JeonSung-il JeonSchool of Chemical and Biological Engineering, College of Engineering, Institute of Chemical Processes, Seoul National University (SNU), Seoul 08826, Republic of KoreaMore by Sung-il Jeon
- Yun-ki ByeunYun-ki ByeunSteelmaking Research Group, Technical Research Laboratory of POSCO, Pohang, Gyeongbuk 37859, Republic of KoreaMore by Yun-ki Byeun
- Ungyu Paik*Ungyu Paik*Email: [email protected]Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of KoreaMore by Ungyu Paik
- SeungCheol Yang*SeungCheol Yang*Email: [email protected]School of Materials Science and Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of KoreaDepartment of Materials Convergence and System Engineering, Changwon National University, Changwon, Gyeongsangnam-do 51140, Republic of KoreaMore by SeungCheol Yang
- Taeseup Song*Taeseup Song*Email: [email protected]Department of Energy Engineering, Hanyang University, Seoul 04763, Republic of KoreaMore by Taeseup Song
Abstract
Flow-electrode capacitive mixing (F-CapMix) and flow-electrode capacitive deionization (FCDI) systems are promising for energy generation and desalination devices, respectively, because constant energy generation and desalination are possible without an intermittent step by employing continuously flowing electrodes. Activated carbon (AC) has been widely used as a flow electrode material for F-CapMix and FCDI due to its good phase stability in an aqueous medium and large surface area capable of ion adsorption. However, the relationship between the physicochemical properties of carbonaceous materials and device performances has not been systematically studied. In this study, we explore activated carbon, natural graphite, synthetic graphite, and expanded graphite with similar particle sizes to a flow electrode material to understand dominant parameters in terms of material properties for the high-performance F-CapMix system and comparison with the FCDI system. The physicochemical properties of carbonaceous materials, their rheological behaviors in an aqueous medium, and corresponding electrochemical properties are systematically studied. Among them, the flow electrode prepared with expanded graphite shows the highest power density of 0.48 W/m2 in F-CapMix due to its solidlike rheological behavior as well as high electrical conductivity and a relatively low FCDI performance of 2.7%. Our findings suggest that the internal resistance of the flow electrode, which is closely related to rheological behavior and powder electrical conductivity, is a dominant factor for the high power density in F-CapMix. In addition, the high specific surface area of carbon material and rheological behavior of the flow electrode are dominant factors for the high salt removal efficiency of the FCDI system.
Cited By
This article is cited by 9 publications.
- Jingjing Xiong, Zetao Zhu, Wenkai Ye, Liwen Mu, Xiaohua Lu, Jiahua Zhu. Regulating Surface Wettability and Charge Density of Porous Carbon Particles by In Situ Growth of Polyaniline for Constructing an Efficient Electrical Percolation Network in Flow-Electrode Capacitive Deionization. Langmuir 2022, 38
(40)
, 12263-12272. https://doi.org/10.1021/acs.langmuir.2c01885
- Dongsoo Lee, Ji Soo Roh, Insung Hwang, Yongmin Jung, Hyungjun Lee, Il Woo Ock, Sungmin Kim, Seho Sun, SeungCheol Yang, Ho Bum Park, Ungyu Paik, Taeseup Song. Multilayered Graphene-Coated Metal Current Collectors with High Electrical Conductivity and Corrosion Resistivity for Flow-Electrode Capacitive Mixing. ACS Sustainable Chemistry & Engineering 2022, 10
(23)
, 7625-7634. https://doi.org/10.1021/acssuschemeng.2c01436
- Insung Hwang, Dongsoo Lee, Yongmin Jung, Jaeik Kim, Jiwoon Kim, Chanho Kim, Donghyun Kim, SeungCheol Yang, Taeseup Song, Ungyu Paik. High-Performance Asymmetric Flow-Electrode Capacitive Mixing with MnO2-Coated Activated Carbon Flow-Electrode for Energy Harvesting from Salinity Gradient Power. ACS Materials Letters 2022, 4
(4)
, 618-625. https://doi.org/10.1021/acsmaterialslett.2c00154
- Dong Gyeong Kim, Donghyun Kim, Haeun Kim, Haeun Seo, HyeRyang Choi, Yeon-Gil Jung, Gye Seok An, Jiyeon Choi, Hanki Kim, Seungcheol Myeong, Yongmin Jung, Dongsoo Lee, Insung Hwang, Taeseup Song, SeungCheol Yang. Optimization criteria of flow-electrode and feed water flow rate to achieve positive net power of flow-electrode capacitive mixing. Desalination 2023, 556 , 116574. https://doi.org/10.1016/j.desal.2023.116574
- Yang Li, Tianzhi Yong, Junwen Qi, Junsheng Wu, Ruoyun Lin, Zihan Chen, Jiansheng Li. Enhancing the electronic and ionic transport of flow-electrode capacitive deionization by hollow mesoporous carbon nanospheres. Desalination 2023, 550 , 116381. https://doi.org/10.1016/j.desal.2023.116381
- Hwabhin Kwon, Donghyun Kim, SeungCheol Yang, Heesung Park. Numerical prediction of pressure drop and flow characteristics of activated carbon and salt-water for flow-electrode capacitive mixing (F-CapMix). Desalination 2023, 550 , 116382. https://doi.org/10.1016/j.desal.2023.116382
- Nan Wu, Youcef Brahmi, Annie Colin. Fluidics for energy harvesting: from nano to milli scales. Lab on a Chip 2023, 23
(5)
, 1034-1065. https://doi.org/10.1039/D2LC00946C
- Zhi Zou, Shuo Meng, Xiaolei Bian, Longcheng Liu. A single-cell system of flow electrode capacitive mixing (F-CapMix) with a cross chamber for continuous energy production. Sustainable Energy & Fuels 2023, 7
(2)
, 398-408. https://doi.org/10.1039/D2SE01546C
- Zhi Zou, Longcheng Liu, Shuo Meng, Xiaolei Bian. Comparative study on the performance of capacitive mixing under different operational modes. Energy Reports 2022, 8 , 7325-7335. https://doi.org/10.1016/j.egyr.2022.05.245
Article Views are the COUNTER-compliant sum of full text article downloads since November 2008 (both PDF and HTML) across all institutions and individuals. These metrics are regularly updated to reflect usage leading up to the last few days.
Citations are the number of other articles citing this article, calculated by Crossref and updated daily. Find more information about Crossref citation counts.
The Altmetric Attention Score is a quantitative measure of the attention that a research article has received online. Clicking on the donut icon will load a page at altmetric.com with additional details about the score and the social media presence for the given article. Find more information on the Altmetric Attention Score and how the score is calculated.