# Defect-modulated ionic friction at hBN/water interfaces

https://mdr.nims.go.jp/datasets/16a5324b-7df9-4583-9316-6863882b9f37

## File

- [s43246-025-00910-3.pdf](https://mdr.nims.go.jp/filesets/9a016895-cd04-4d17-99ed-01e537e857ca/download) ([Detail](https://mdr.nims.go.jp/filesets/9a016895-cd04-4d17-99ed-01e537e857ca.md))

## Id

16a5324b-7df9-4583-9316-6863882b9f37

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-14T11:35:10.778614Z

## Updated at

2026-02-16T23:30:08.490182Z

## Published at

2026-02-16T09:00:48.327855Z

## Doi



## First published url

https://doi.org/10.1038/s43246-025-00910-3

## Date published

2025-09-01

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Defect-modulated ionic friction at hBN/water interfaces
  title_type: original
  lang: en

## Description

- description: Transport of single ionic charges at solid/liquid interfaces is vital
    to energy conversion, electrochemistry and biological activities. It is mostly
    studied in ensemble indirect ways, which temporally and spatially average individual
    molecular dynamics. The dynamical interaction between single molecules and the
    interface is missing. In this study, we use an single-molecule optonanofluidic
    plateform relying on fluorescent hBN defects to directly visualize the interfacial
    transport of single protons and ultimately reveal the vital role played by surface
    defects. We firstly statistically report different types of adsorption sites,
    created by plasma bombardment, that are responsible for the proton adsorption.
    We further reveal that the proton dynamics features exponentially-decaying arms,
    strongly departing from the classically uncorrelated ergodic Gaussian for Brownian
    transport. By using plasma treatments to control the trapping site density, we
    evidence the significant modulation of single ion dynamics. Brownian dynamics
    simulations evidence that the exponential process originates from the molecular
    adsorption on defect sites, and they give a semi-empirical scaling be- tween the
    effective diffusion coefficient and adsorption events. Our study highlights the
    key yet overlooked role of defects in the interfacial charge transport, with potential
    applications in the design of super-capacitor, batteries and blue energy conversion.
  description_type: abstract
  lang: und

## Creator

- name: Menghua Zhao
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Jean Comtet
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: 'ionic friction
    '
  schema: not_defined
- subject: hBN/water interface
  schema: not_defined
- subject: 'surface defects
    '
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by-nc-nd/4.0/
  date_licensed: 2025-09-01

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Communications Materials
  issn: '26624443'
  volume: '6'
  issue: '1'
  article_number: '200'

## Conference



## Related item



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## 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



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## Custom property



## Fileset

- id: 9a016895-cd04-4d17-99ed-01e537e857ca
  filename: s43246-025-00910-3.pdf
  content_type: application/pdf
  size: 2370990
  md5: 0632a17f40c077e3cfb652f3951426b4

## Thumbnail

fileset_id: 9a016895-cd04-4d17-99ed-01e537e857ca
filename: s43246-025-00910-3.pdf