# Electrochemically Driven Tandem In‐Plane Reduction and FeCl<sub>3</sub>‐ Intercalation of Highly Crystalline Graphene Oxide Thin Films

https://mdr.nims.go.jp/datasets/fe194360-26b5-435f-b87b-e01339625457

## File

- [Adv Funct Materials - 2025 - Tsugawa - Electrochemically Driven Tandem In‐Plane Reduction and FeCl3‐ Intercalation of.pdf](https://mdr.nims.go.jp/filesets/81e755fc-a11a-4927-a55e-f2abf8930f27/download) ([Detail](https://mdr.nims.go.jp/filesets/81e755fc-a11a-4927-a55e-f2abf8930f27.md))

## Id

fe194360-26b5-435f-b87b-e01339625457

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-11-30T22:34:20.966875Z

## Updated at

2025-12-01T03:30:07.832452Z

## Published at

2025-12-01T03:23:45.740519Z

## Doi



## First published url

https://doi.org/10.1002/adfm.202510430

## Date published

2025-07-25

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Electrochemically Driven Tandem In‐Plane Reduction and FeCl<sub>3</sub>‐
    Intercalation of Highly Crystalline Graphene Oxide Thin Films
  title_type: original
  lang: en

## Description

- description: The current design and understanding of graphene oxide (GO) and reduced
    GO (rGO) materials rely largely on insights derived from structurally defective
    and chemically inhomogeneous GO synthesized by Hummers’ method. As a result, this
    early-stage knowledge fails to fully exploit the potential benefits of GO. This
    study explores electrochemical approaches using highly crystalline Brodie’s GO
    for fabricating reduced GO (rGO)-based transparent conductive films (TCFs) without
    using toxic reducing agents or heat treatment. The study first demonstrates an
    in-plane electrochemical reduction method for fabricating rGO nanocoatings on
    plastic substrates. During this process, rGO at the rGO/GO/electrolyte three-phase
    interface functions as a growing cathode, inducing tandem reduction parallel to
    the insulating substrate surface. The crystallinity of the GO precursor determines
    the activation or deactivation of the three-phase interface at nanometer-scale
    thickness. The electrochemical reduction of epoxide groups leads to a well-extended
    π-electron network with suppressed local strains and carbon vacancies. The sheet
    resistivity of rGO-based TCFs was further optimized through hole doping via electrochemical
    FeCl3 intercalation, breaking the transparency–resistivity limit of available
    rGO-TCFs. These discoveries will facilitate the development of next-generation
    green graphene processes based on precise synthetic chemistry.
  description_type: abstract
  lang: und

## Creator

- name: Tatsuki Tsugawa
  role: author
- name: Kazuto Hatakeyama
  role: author
  orcid: https://orcid.org/0000-0002-3369-3371
- name: Junya Kawasaki
  role: author
- name: Agamoni Pathak
  role: author
  orcid: https://orcid.org/0009-0001-5088-5973
- name: Kazuhito Tsukagoshi
  role: author
  orcid: https://orcid.org/0000-0001-9710-2692
- name: Shintaro Ida
  role: author
- name: Takaaki Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-8460-5431

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Graphene Oxide
  schema: not_defined
- subject: reduced Graphene Oxide
  schema: not_defined
- subject: Thin Film
  schema: not_defined
- subject: green graphene processes
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Advanced Functional Materials
  issn: 1616301X
  article_number: e10430

## Conference



## Related item



## Funding

- identifier: 24K01304
  funder_name: Japan Society for the Promotion of Science

## Instrument



## Instrument operator



## Instrument managing organization



## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



## Structural feature for specimen



## Specific property for specimen



## Process for specimen treatment



## Computational method



## Energy level/transition state



## Software



## Custom property



## Fileset

- id: 81e755fc-a11a-4927-a55e-f2abf8930f27
  filename: Adv Funct Materials - 2025 - Tsugawa - Electrochemically Driven Tandem
    In‐Plane Reduction and FeCl3‐ Intercalation of.pdf
  content_type: application/pdf
  size: 3444597
  md5: 11a0a7da9cce2e23f92128e4f2244fb0

## Thumbnail

fileset_id: 81e755fc-a11a-4927-a55e-f2abf8930f27
filename: Adv Funct Materials - 2025 - Tsugawa - Electrochemically Driven Tandem In‐Plane
  Reduction and FeCl3‐ Intercalation of.pdf