# Selective insertion of La oxides into micropores of SBA-15 and preparation of highly ordered mesoporous La–Si oxides with high stability against alkaline hydrolysis

https://mdr.nims.go.jp/datasets/aad98ef1-4428-4a6a-bfb0-ab2dc6484337

## File

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## Id

aad98ef1-4428-4a6a-bfb0-ab2dc6484337

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-12-24T10:23:27.430525Z

## Updated at

2026-04-30T03:01:11.491392Z

## Published at

2026-08-15T23:26:16.312275Z

## Doi

https://doi.org/10.48505/nims.6070

## First published url

https://doi.org/10.1093/chemle/upaf156

## Date published

2025-09-01

## Recorded date published

2025-9-1

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Selective insertion of La oxides into micropores of SBA-15 and preparation
    of highly ordered mesoporous La–Si oxides with high stability against alkaline
    hydrolysis
  title_type: original
  lang: en

## Description

- description: Lanthanum oxides were selectively inserted into the micropores of SBA-15
    via a simple impregnation and subsequent calcination method, forming mesoporous
    La–Si oxides (SBA-La). Characterization by using powder X-ray diffraction (XRD),
    N₂ adsorption, and transmission electron microscopy (TEM) confirmed that La oxides
    preferentially fill the micropores without damaging the mesopore structure. Upon
    excess loading, La oxides occupy mesopores while retaining cylindrical mesoporous
    morphology. SBA-La exhibits significantly enhanced stability against alkaline
    hydrothermal conditions compared with unmodified SBA-15. The improved durability
    is attributed to the formation of La oxides in micropores, which suppresses degradation
    pathways. This strategy provides a simple and effective route to improve the chemical  robustness
    of mesoporous silica materials.
  description_type: abstract
  lang: und

## Creator

- name: Yoshimi Kawamoto
  role: author
- name: Jinrui Li
  role: author
- name: Yusuke Ide
  role: author
  orcid: https://orcid.org/0000-0002-6901-6954
- name: Tsuneji Sano
  role: author
- name: Masahiro Sadakane
  role: author

## Contact agent



## Publisher

organization: Oxford University Press (OUP)

## Managing organization



## Keyword

- subject: Mesoporous La-Si oxide
  schema: not_defined
- subject: High stability
  schema: not_defined
- subject: SBA-15
  schema: not_defined

## Rights

- description: 'This is a pre-copyedited, author-produced version of an article accepted
    for publication in Chemistry Letters following peer review. The version of record
    Yoshimi Kawamoto, Jinrui Li, Yusuke Ide, Tsuneji Sano, Masahiro Sadakane, Selective
    insertion of La oxides into micropores of SBA-15 and preparation of highly ordered
    mesoporous La–Si oxides with high stability against alkaline hydrolysis, Chemistry
    Letters, Volume 54, Issue 9, September 2025, upaf156 is available online at: https://doi.org/10.1093/chemle/upaf156.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2025-08-16
end_date: 2026-08-16

## Journal

- title: Chemistry Letters
  issn: '03667022'
  volume: '54'
  issue: '9'
  article_number: upaf156

## Conference



## Related item



## Funding

- funder_name: SUZUKI
- identifier: JP22H05144
  funder_name: JSPS KAKENHI
- funder_name: JSPS Core-to-Core Program

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  filename: 250619_cl_template_20_withoutChangeTrack.pdf
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  size: 324026
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## Thumbnail

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filename: 250619_cl_template_20_withoutChangeTrack.pdf