公开(公告)号：US20210187442A1

公开(公告)日：2021-06-24

申请号：US17125341

申请日：2020-12-17

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Shane Ardo ,  Gideon Segev ,  Francesca Toma ,  Joel Ager ,  Rylan Kautz ,  David Larson

IPC: B01D61/46 ,  B01D61/44

Abstract: Described herein is an ion pump system implementing an electronic ratchet mechanism produced by modulating a spatially varying electric potential distribution that can result in a net ionic current and voltage. The ion pumping membrane system includes an ion-permeable layer that can also be integrated with ion-selective membranes. The electric potential distribution within the ion-permeable layer is modulated through external stimuli. When immersed in solution, ions within the ion-permeable layer experience a time varying, spatially asymmetric electric field distribution resulting in ratchet-driven direct ion pumping, which can be used in applications such as desalination.

公开(公告)号：US12230486B2

公开(公告)日：2025-02-18

申请号：US16907076

申请日：2020-06-19

Applicant: THE REGENTS OF THE UNIVERSITY OF CALIFORNIA

Inventor： Shane Ardo ,  Gideon Segev ,  Francesca Toma ,  Joel Ager ,  Rylan Kautz ,  David Larson

IPC: H01J41/00 ,  B01D61/46 ,  C02F1/469 ,  H01J41/12 ,  C02F103/08

Abstract: Described herein is an ion pump system implementing an electronic ratchet mechanism produced by modulating a spatially varying electric potential distribution that can result in a net ionic current and voltage. The ion pumping membrane system includes an ion-permeable layer integrated with ion-selective membranes. The electric potential distribution within the ion-permeable layer is modulated through external stimuli. When immersed in solution, ions within the ion-permeable layer experience a time varying, spatially asymmetric electric field distribution resulting in ratchet-driven direction pumping, which can be used in applications such as desalination.

公开(公告)号：US20220113273A1

公开(公告)日：2022-04-14

申请号：US17495631

申请日：2021-10-06

Applicant: The Regents of the University of California

Inventor： Peter Agbo ,  David Larson

IPC: G01N27/30 ,  G01N27/327 ,  G01N27/417

Abstract: This disclosure provides systems, methods, and apparatus related to electrochemistry. In one aspect, an apparatus includes a light source and a potentiostat. The potentiostat is operable to be connected to an electrochemical cell. A counter electrode connection of the potentiostat is operable to be connected to a photoelectrode of the electrochemical cell. A working electrode connection of the potentiostat is operable to be connected to the working electrode of the electrochemical cell. The light source positioned to illuminate the photoelectrode when the light source is operating. When the apparatus is in operation, the potentiostat is used to bias the photoelectrode to allow for control of the voltage applied to the electrochemical cell, and an intensity of light incident upon the photoelectrode is varied to allow for control of the current applied to the electrochemical cell.