# Sacrificial carbon fiber-nickel hydroxide core-shell particles for nickel oxide diffusion from pore surfaces to grain interfaces in zirconia 

https://mdr.nims.go.jp/datasets/978733c2-64e1-486d-9520-a5497f0c7864

## Files

- [ERCA_R2.docx](https://mdr.nims.go.jp/filesets/769669fb-f787-4b94-9596-2dd44b2c293b/download) ([Detail](https://mdr.nims.go.jp/filesets/769669fb-f787-4b94-9596-2dd44b2c293b.md))

## Id

978733c2-64e1-486d-9520-a5497f0c7864

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-03-18T02:00:59.720882Z

## Updated at

2026-03-19T05:27:01.185775Z

## Published at

2026-03-19T04:36:22.650745Z

## Doi

https://doi.org/10.48505/nims.6223

## First published url

https://doi.org/10.1039/D5CE01187F

## Date published

2026-02-12

## Recorded date published

2026-3-16

## Resource type

journal_article

## Manuscript type

authors_original

## Collection



## Title

- title: 'Sacrificial carbon fiber-nickel hydroxide core-shell particles for nickel
    oxide diffusion from pore surfaces to grain interfaces in zirconia '
  title_type: original
  lang: en

## Description

- description: The sacrificial use of core–shell particles offers a versatile strategy
    for generating porous structures while increasing oxide–oxide interfaces within
    porous materials through diffusion of oxide species from pore surfaces to grain
    interfaces. In this study, carbon fiber (CF)–nickel hydroxide core–shell particles
    were combined with zirconia and calcined to produce porous zirconia sintered bodies
    containing nickel oxide at zirconia grain boundaries. Core–shell particles bearing
    vertically aligned platy nickel hydroxide on CF surfaces are prepared by a hydrothermal
    reaction. Upon calcination with zirconia at 1300°C for 12 h, the CF cores were
    removed by combustion, and the nickel hydroxide shells were converted into tubular
    nickel oxide hollow particles, whose interiors acted as pores within the zirconia
    matrix. Complementary analyses—including X-ray diffraction, electron microscopy,
    elemental mapping, and multiscale synchrotron X-ray computed tomography—revealed
    that nickel oxide is present in minute amounts, forming thin layers at zirconia
    grain boundaries and on portions of the pore surfaces. Compared with zirconia
    sintered without the core–shell particles, the zirconia-core-shell particle system
    suggests that interfacial diffusion of nickel oxide suppresses zirconia grain
    growth. These results demonstrate that both the CF core and the nickel hydroxide
    shell act sacrificially to create interconnected pores while designing additional
    oxide–oxide interfaces at pore surfaces, thereby generating an increased three-phase
    oxide–oxide–pore interfacial environment within the sintered bodies.
  description_type: abstract
  lang: eng

## Creator

- name: Shingo Machida
  role: author
  organization: JFCC
- name: Yuki Sada
  role: author
  organization: Japan Synchrotron Radiation Research Institute (JASRI)
- name: Daiki Takeda
  role: author
  organization: Industrial Research Institute of Ishikawa
- name: Shintaro Matsushita
  role: author
  organization: Institute of Science Tokyo
- name: Daisaku Yokoe
  role: author
  organization: JFCC
- name: Kentaro Uesugi
  role: author
  organization: Japan Synchrotron Radiation Research Institute (JASRI)
- name: Akihisa Takeuchi
  role: author
  organization: Japan Synchrotron Radiation Research Institute (JASRI)
- name: Gaku Okuma
  role: author
  orcid: https://orcid.org/0000-0002-2997-9166
  organization: National Institute for Materials Science
  department: Research Center for Structural Materials/Materials Manufacturing Field/Ceramic
    Matrix Composites Group
- name: Tetsuya Yamada
  role: author
  organization: Institute of Science Tokyo

## Contact agent



## Publisher

organization: Royal Society of Chemistry

## Managing organization



## Keyword

- subject: nickel oxide diffusion
  schema: not_defined

## Rights

- identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: CRYSTENGCOMM
  issn: '14668033'
  volume: '28'
  issue: '11'
  start_page: 1828
  end_page: 1836

## Conference



## Related item



## Funding



## 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: 769669fb-f787-4b94-9596-2dd44b2c293b
  filename: ERCA_R2.docx
  content_type: application/vnd.openxmlformats-officedocument.wordprocessingml.document
  size: 3714591
  md5: 3995a87226598e0fcdf3e87db8b60a5d

## Thumbnail

fileset_id: 769669fb-f787-4b94-9596-2dd44b2c293b
filename: ERCA_R2.docx