View in EDS

Improved symmetry and current distribution in a gastight rotating cylinder electrode cell: Design and characterization.

Saved in:
Bibliographic Details
Title: Improved symmetry and current distribution in a gastight rotating cylinder electrode cell: Design and characterization.
Authors: Ishida, Momoko1 (AUTHOR), Kwak, Tyler Seung Hun1 (AUTHOR), Richard, Derek M.1 (AUTHOR), Dongare, Saudagar2 (AUTHOR), Gurkan, Burcu2 (AUTHOR), Christofides, Panagiotis D.1 (AUTHOR), Morales‐Guio, Carlos G.1 (AUTHOR) moralesguio@ucla.edu
Source: AIChE Journal. Jun2026, Vol. 72 Issue 6, p1-11. 11p.
Subjects: Current distribution, Electric fields, Electrocatalysis, Mass transfer kinetics, Rotating disk electrodes, Electrolyte solutions, Computer simulation
Abstract: Understanding the interplay between intrinsic kinetics and transport remains a central challenge in electrocatalysis. Rotating disk electrodes (RDE) are widely used because their transport can be described analytically, but radial concentration gradients complicate analysis of multi‐electron processes. Rotating cylinder electrodes (RCE) provide an improved convective transport profile that better separates transport from kinetics. However, multiphysics simulations show that the use of a single flat counter electrode distorts the electric field in low‐conductivity electrolytes. We present a third‐generation gastight RCE cell (RCE‐3) with two flat counter electrodes symmetrically positioned around the cylinder. This configuration doubles the counter electrode area, increases achievable current density, and improves field symmetry while maintaining well‐defined hydrodynamics. Electrochemical CO2 reduction experiments demonstrate that asymmetric electric fields bias apparent kinetics in non‐aqueous electrolytes, whereas symmetric counter electrode operation minimizes these distortions, enabling reliable extraction of intrinsic kinetic parameters. The RCE‐3 cell contributes to advancing the mechanistic understanding of non‐aqueous electrocatalytic systems. [ABSTRACT FROM AUTHOR]
Copyright of AIChE Journal is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
FullText Text:
  Availability: 0
Header DbId: egs
DbLabel: Engineering Source
An: 193398331
AccessLevel: 6
PubType: Academic Journal
PubTypeId: academicJournal
PreciseRelevancyScore: 0
IllustrationInfo
Items – Name: Title
  Label: Title
  Group: Ti
  Data: Improved symmetry and current distribution in a gastight rotating cylinder electrode cell: Design and characterization.
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22Ishida%2C+Momoko%22">Ishida, Momoko</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Kwak%2C+Tyler+Seung+Hun%22">Kwak, Tyler Seung Hun</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Richard%2C+Derek+M%2E%22">Richard, Derek M.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Dongare%2C+Saudagar%22">Dongare, Saudagar</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Gurkan%2C+Burcu%22">Gurkan, Burcu</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Christofides%2C+Panagiotis+D%2E%22">Christofides, Panagiotis D.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Morales‐Guio%2C+Carlos+G%2E%22">Morales‐Guio, Carlos G.</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> moralesguio@ucla.edu</i>
– Name: TitleSource
  Label: Source
  Group: Src
  Data: <searchLink fieldCode="JN" term="%22AIChE+Journal%22">AIChE Journal</searchLink>. Jun2026, Vol. 72 Issue 6, p1-11. 11p.
– Name: Subject
  Label: Subjects
  Group: Su
  Data: <searchLink fieldCode="DE" term="%22Current+distribution%22">Current distribution</searchLink><br /><searchLink fieldCode="DE" term="%22Electric+fields%22">Electric fields</searchLink><br /><searchLink fieldCode="DE" term="%22Electrocatalysis%22">Electrocatalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Mass+transfer+kinetics%22">Mass transfer kinetics</searchLink><br /><searchLink fieldCode="DE" term="%22Rotating+disk+electrodes%22">Rotating disk electrodes</searchLink><br /><searchLink fieldCode="DE" term="%22Electrolyte+solutions%22">Electrolyte solutions</searchLink><br /><searchLink fieldCode="DE" term="%22Computer+simulation%22">Computer simulation</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Understanding the interplay between intrinsic kinetics and transport remains a central challenge in electrocatalysis. Rotating disk electrodes (RDE) are widely used because their transport can be described analytically, but radial concentration gradients complicate analysis of multi‐electron processes. Rotating cylinder electrodes (RCE) provide an improved convective transport profile that better separates transport from kinetics. However, multiphysics simulations show that the use of a single flat counter electrode distorts the electric field in low‐conductivity electrolytes. We present a third‐generation gastight RCE cell (RCE‐3) with two flat counter electrodes symmetrically positioned around the cylinder. This configuration doubles the counter electrode area, increases achievable current density, and improves field symmetry while maintaining well‐defined hydrodynamics. Electrochemical CO2 reduction experiments demonstrate that asymmetric electric fields bias apparent kinetics in non‐aqueous electrolytes, whereas symmetric counter electrode operation minimizes these distortions, enabling reliable extraction of intrinsic kinetic parameters. The RCE‐3 cell contributes to advancing the mechanistic understanding of non‐aqueous electrocatalytic systems. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of AIChE Journal is the property of Wiley-Blackwell and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=egs&AN=193398331
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1002/aic.70294
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 11
        StartPage: 1
    Subjects:
      – SubjectFull: Current distribution
        Type: general
      – SubjectFull: Electric fields
        Type: general
      – SubjectFull: Electrocatalysis
        Type: general
      – SubjectFull: Mass transfer kinetics
        Type: general
      – SubjectFull: Rotating disk electrodes
        Type: general
      – SubjectFull: Electrolyte solutions
        Type: general
      – SubjectFull: Computer simulation
        Type: general
    Titles:
      – TitleFull: Improved symmetry and current distribution in a gastight rotating cylinder electrode cell: Design and characterization.
        Type: main
  BibRelationships:
    HasContributorRelationships:
      – PersonEntity:
          Name:
            NameFull: Ishida, Momoko
      – PersonEntity:
          Name:
            NameFull: Kwak, Tyler Seung Hun
      – PersonEntity:
          Name:
            NameFull: Richard, Derek M.
      – PersonEntity:
          Name:
            NameFull: Dongare, Saudagar
      – PersonEntity:
          Name:
            NameFull: Gurkan, Burcu
      – PersonEntity:
          Name:
            NameFull: Christofides, Panagiotis D.
      – PersonEntity:
          Name:
            NameFull: Morales‐Guio, Carlos G.
    IsPartOfRelationships:
      – BibEntity:
          Dates:
            – D: 01
              M: 06
              Text: Jun2026
              Type: published
              Y: 2026
          Identifiers:
            – Type: issn-print
              Value: 00011541
          Numbering:
            – Type: volume
              Value: 72
            – Type: issue
              Value: 6
          Titles:
            – TitleFull: AIChE Journal
              Type: main
ResultId 1