# Phase textures of metal–oxide nanocomposites self-orchestrated by atomic diffusions through precursor alloys

https://mdr.nims.go.jp/datasets/8a3008fd-7bcb-438a-8ad7-bc8a7caa5763

## File

- [PCCP-MDR.pdf](https://mdr.nims.go.jp/filesets/912b85e2-771f-4a05-b7ca-708e65ccc4f2/download) ([Detail](https://mdr.nims.go.jp/filesets/912b85e2-771f-4a05-b7ca-708e65ccc4f2.md))

## Id

8a3008fd-7bcb-438a-8ad7-bc8a7caa5763

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-01T03:19:10.302151Z

## Updated at

2025-12-09T23:30:10.244230Z

## Published at

2025-12-09T23:23:49.138112Z

## Doi

https://doi.org/10.48505/nims.5978

## First published url

https://doi.org/10.1039/d3cp05157a

## Date published

2024-04-22

## Recorded date published

2024-5-15

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Phase textures of metal–oxide nanocomposites self-orchestrated by atomic
    diffusions through precursor alloys
  title_type: original
  lang: en

## Description

- description: Metal-oxide nanocomposites (MONs) are of pivotal importance as electrode
    materials, yet lack a guiding principle to tune their phase texture. Here we report
    that the phase texture of MONs can be tuned at the nanoscale by controlling the
    nanophase separation of precursor alloys. In situ transmission electron microscopy
    (in situ TEM) has demonstrated that a MON material of platinum (Pt) and cerium
    oxide (CeO2) is obtained through promoted nanophase separation of a Pt5Ce precursor
    alloy in an atmosphere containing oxygen (O2) and carbon monoxide (CO). The Pt–CeO2
    MON material comprised an alternating stack of nanometre-thick layers of Pt and
    CeO2 in different phase textures ranging from lamellae to mazes, depending on
    the O2 fraction in the atmosphere. Mathematical simulations have demonstrated
    that the phase texture of MONs originates from a balance in the atomic diffusions
    across the alloy precursor, which is controllable by the O2 fraction, temperature,
    and composition of the precursor alloys.
  description_type: abstract
  lang: und

## Creator

- name: Nasrat Hannah Shudin
  role: author
- name: Ryuto Eguchi
  role: author
  orcid: https://orcid.org/0009-0003-2859-6934
  organization: National Institute for Materials Science
- name: Takeshi Fujita
  role: author
- name: Tomoharu Tokunaga
  role: author
- name: Ayako Hashimoto
  role: author
  orcid: https://orcid.org/0000-0002-1985-7667
  organization: National Institute for Materials Science
- name: Hideki Abe
  role: author
  orcid: https://orcid.org/0000-0002-8392-7586
  organization: National Institute for Materials Science

## Contact agent



## Publisher

organization: Royal Society of Chemistry (RSC)

## Managing organization



## Keyword

- subject: In-Situ TEM
  schema: not_defined
- subject: Numerical Simulation
  schema: not_defined
- subject: Reaction Diffusion
  schema: not_defined
- subject: Phase Separation
  schema: not_defined
- subject: Metal-Oxide Nano-composites
  schema: not_defined

## Rights

- identifier: cc-by-3.0

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Chemistry Chemical Physics
  issn: '14639084'
  volume: '26'
  issue: '19'
  start_page: 14103
  end_page: 14107

## Conference



## Related item



## Funding

- identifier: 22H01799
  funder_name: Japan Society for the Promotion of Science
- identifier: JPMJFR213U
  funder_name: Japan Science and Technology Agency

## 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: 912b85e2-771f-4a05-b7ca-708e65ccc4f2
  filename: PCCP-MDR.pdf
  content_type: application/pdf
  size: 1090503
  md5: 57d09d3148d395c4611521babfd457be

## Thumbnail

fileset_id: 912b85e2-771f-4a05-b7ca-708e65ccc4f2
filename: PCCP-MDR.pdf