公开(公告)号：US20240151683A1

公开(公告)日：2024-05-09

申请号：US18382796

申请日：2023-10-23

Applicant: THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS

Inventor： Xiao SU ,  Nayeong KIM ,  Johannes ELBERT

IPC: G01N27/333 ,  C08F130/04

CPC classification number: G01N27/333 ,  C08F130/04

Abstract: The design of electrochemically responsive halogen donors in redox-active polymer for switchable electrosorption and release of anions. A redox-active group such as ferrocene acts as an electron-withdrawing group, facilitating the delocalization of the electrons on the halogen atom. Upon the oxidation of the ferrocene moiety, the halogen atom forms a partial-positive charge (σ-hole) on the elongation of the C—I bond, resulting in strong binding with anions in cooperation with the hydrogen bonds on the cyclopentadienyl ring on the oxidized ferrocene. During reduction of ferrocene, halogen bonding is deactivated, releasing the bound anions reversibly.

公开(公告)号：US20240270611A1

公开(公告)日：2024-08-15

申请号：US18568009

申请日：2022-06-30

Applicant: The Board of Trustees of the University of Illinois ,  Kongju National University Industry-University Cooperation Foundation

Inventor： Xiao SU ,  Nayeong KIM ,  Johannes ELBERT ,  Choonsoo KIM

IPC: C02F1/469 ,  C02F1/461 ,  C02F101/30

CPC classification number: C02F1/4693 ,  C02F2001/46133 ,  C02F2101/30 ,  C02F2201/46135 ,  C02F2201/4618

Abstract: A system for redox-mediated electrodialysis includes: a first electrode; a second electrode positioned in opposition to the first electrode; an anion exchange membrane and a cation exchange membrane positioned between the first and second electrodes; a feed channel for flow of a treating fluid, the feed channel extending between the anion and cation exchange membranes; an additional membrane or pair of membranes between the first and second electrodes, the additional membrane or pair of membranes defining a collection channel on one or both sides of the feed channel for collecting anions and cations removed from the treating fluid, the additional membrane or pair of membranes including an anion exchange membrane and/or a cation exchange membrane; and a redox channel for flow of a redox fluid, the redox channel containing the first and second electrodes and being separated from the feed and/or collection channels by the anion and/or cation exchange membranes.