CDI & Electrosorption

Capacitive deionization (CDI) is a promising new technology for water desalination making use of an electrical voltage applied between two electrodes. Even at rather low voltages of 1.2 V, desalinated water can be produced. This “direct current” low voltage can easily be produced using a small solar panel. The academic interest in CDI has increased rapidly in the past 5 years as can be read in the news items. Companies, from startups and SMEs to multinationals, have research activities and commercial deployment in the field of CDI.

Electrosorption is the fundamental process underlying the CDI technology describing the interaction of molecular species and ions with charged materials for chemical conversion and/or temporary storage and separation. With the multitude of molecular species that can be of interest, ranging from metal and salt ions (lithium, arsene) all the way up to protein and designer molecules such as pharmaceuticals, and the multitude of solid and porous materials that one can think of, the possibilities are enormous.

Though at present the CDI&E website may have a focus on CDI, we expect to see increasing numbers of contributions where the fundamental phenomenon of electrosorption is applied for novel applications in water treatment, health and energy.

This website is maintained under the responsibility of the International Working Group on CDI&E, who also invites you to attend any of the upcoming CDI&E conferences and symposia.


4th International Conference on Capacitive Deionization & Electrosorption (CDI&E) – Beijing, China, 20-23 May 2019

We are honored to introduce the 4th International conference on Capacitive Deionization and Electrosorption, which will take place in Beijing, China, from May 20 to 23, 2019. The conference will be a good forum for CDI researchers to present the latest results, to draw inspiration and ideas, and to probe into the future development of CDI&E technologies. ...continue reading

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Postdoctoral vacancy CDI available !

The Department of Civil and Environmental Engineering of Penn State University (U.S.A.) seeks applicants for a full-time Post Doctoral position in CDI. The successful candidate will conduct research on development of novel types of desalination systems, such as battery electrode deionization, and membrane fouling. Applicants must have a PhD in Environmental Engineering or a related ...continue reading

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Position paper on “What is CDI?”

Following the CDI conference recently held in the Republic of Korea, July 2017, twenty scientists active in the field of CDI worked on a joint position paper, putting forward the proposition that CDI defines a class of desalination technologies that share common operational principles and relevant metrics, thereby joining under one common term different CDI ...continue reading

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CDI-E Korea 2017 a major success !

Last week's CDI-E's conference was a big success. 180 participants gathered for three full conference days in the heart of Seoul, Republic of South Korea. The conference, hosted by prof. Jeyong Yoon and his team of Seoul National University, proved invaluable in informing participants of all the latest developments in CDI technology, both from an ...continue reading

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Website CDI-E 2017 online !

The upcoming 3rd world conference on CDI&E "Capacitive Deionization, Electrosorption, and Electrodialysis" will be held July 3-6, 2017, in Seoul, Republic of Korea. Following earlier conferences in The Netherlands and Germany, we expect an attendance of over 200 delegates discussing all aspects of water treatment and desalination using electrochemical methods based on porous electrodes and/or ...continue reading

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