# Ultrasmall <i>α</i>‐MnO<sub>2</sub> with Low Aspect Ratio: Applications to Electrochemical Multivalent‐Ion Intercalation Hosts and Aerobic Oxidation Catalysts

https://mdr.nims.go.jp/datasets/804a8f66-b714-42b3-bab0-4c0739aefb9b

## File

- [R1_manuscript_plain.docx](https://mdr.nims.go.jp/filesets/88f35843-09d1-43f5-99f2-73fb276c0647/download) ([Detail](https://mdr.nims.go.jp/filesets/88f35843-09d1-43f5-99f2-73fb276c0647.md))

## Id

804a8f66-b714-42b3-bab0-4c0739aefb9b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-04-16T00:18:48.198872Z

## Updated at

2026-01-16T03:30:16.074491Z

## Published at

2026-01-15T23:32:33.412817Z

## Doi

https://doi.org/10.48505/nims.5434

## First published url

https://doi.org/10.1002/smll.202411493

## Date published

2025-01-16

## Recorded date published

2025-2

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: 'Ultrasmall <i>α</i>‐MnO<sub>2</sub> with Low Aspect Ratio: Applications
    to Electrochemical Multivalent‐Ion Intercalation Hosts and Aerobic Oxidation Catalysts'
  title_type: original
  lang: en

## Description

- description: "Ultrasmall α-MnO2 (<10 nm) with a low aspect ratio (c/a ~ 2) is synthesized
    using a newly developed alcohol solution process. This material demonstrated exceptional
    performance across various multivalent battery systems, primarily due to the significantly
    reduced cation diffusion distance. Notably, an ultrasmall α-MnO2-graphene composite
    achieved high capacity with low overpotential when paired with an F-free electrolyte
    in Ca battery. Regarding aerobic oxidation catalysis, the nanosizing of α-MnO2
    had a profound impact on aerobic oxidation catalysis. The increased efficiency
    of oxidative conversion reactions, such as the oxidation of 1-phenylethanol, was
    attributed to the greatly expanded active surface area of the catalyst. The versatile\r\nfunctionality
    of ultrasmall α-MnO2 underscores its potential to revolutionize energy storage
    and catalysis, offering broad applicability in next-generation green energy technologies."
  description_type: abstract
  lang: und

## Creator

- name: Reona Iimura
  role: author
- name: Shiori Kawasaki
  role: author
- name: Takashi Yabu
  role: author
- name: Shinnosuke Tachibana
  role: author
- name: Kazuya Yamaguchi
  role: author
  orcid: https://orcid.org/0000-0002-7661-4936
- name: Toshihiko Mandai
  role: author
  orcid: https://orcid.org/0000-0002-2403-7794
- name: Kazuaki Kisu
  role: author
  orcid: https://orcid.org/0000-0002-1693-4225
- name: Naoto Kitamura
  role: author
  orcid: https://orcid.org/0000-0002-1940-4609
- name: Zhirong Zhao‐Karger
  role: author
  orcid: https://orcid.org/0000-0002-7233-9818
- name: Shin‐ichi Orimo
  role: author
  orcid: https://orcid.org/0000-0002-4216-0446
- name: Yasushi Idemoto
  role: author
  orcid: https://orcid.org/0000-0003-3832-2139
- name: Masaki Matsui
  role: author
  orcid: https://orcid.org/0000-0003-1499-7457
- name: Maximilian Fichtner
  role: author
  orcid: https://orcid.org/0000-0002-7127-1823
- name: Itaru Honma
  role: author
  orcid: https://orcid.org/0000-0002-6536-576X
- name: Tetsu Ichitsubo
  role: author
  orcid: https://orcid.org/0000-0002-1127-3034
- name: Hiroaki Kobayashi
  role: author
  orcid: https://orcid.org/0000-0001-6705-9515

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Nanoparticle
  schema: not_defined
- subject: Oxide
  schema: not_defined
- subject: Magnesium battery
  schema: not_defined

## Rights

- description: 'This is the peer reviewed version of the following article: R. Iimura,
    S. Kawasaki, T. Yabu, S. Tachibana, K. Yamaguchi, T. Mandai, K. Kisu, N. Kitamura,
    Z. Zhao-Karger, S. Orimo, Y. Idemoto, M. Matsui, M. Fichtner, I. Honma, T. Ichitsubo,
    H. Kobayashi, Ultrasmall α-MnO2 with Low Aspect Ratio: Applications to Electrochemical
    Multivalent-Ion Intercalation Hosts and Aerobic Oxidation Catalysts. Small 2025,
    21, 2411493, which has been published in final form at https://doi.org/10.1002/smll.202411493.
    This article may be used for non-commercial purposes in accordance with Wiley
    Terms and Conditions for Use of Self-Archived Versions. This article may not be
    enhanced, enriched or otherwise transformed into a derivative work, without express
    permission from Wiley or by statutory rights under applicable legislation. Copyright
    notices must not be removed, obscured or modified. The article must be linked
    to Wiley’s version of record on Wiley Online Library and any embedding, framing
    or otherwise making available the article or pages thereof by third parties from
    platforms, services and websites other than Wiley Online Library must be prohibited.'
  identifier: http://rightsstatements.org/vocab/InC/1.0/

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo

start_date: 2025-01-16
end_date: 2026-01-16

## Journal

- title: Small
  issn: '16136810'
  volume: '21'
  issue: '7'

## Conference



## Related item



## Funding

- identifier: JPMJGX23S1
  funder_name: Japan Science and Technology Agency
  description: GteX
- identifier: JPMJAL1301
  funder_name: Japan Science and Technology Agency
  description: ALCA-SPRING
- identifier: 23K13816
  funder_name: Japan Society for the Promotion of Science
- funder_name: Light Metal Educational Foundation
- funder_name: Tohoku University
- identifier: '390874152'
  funder_name: Deutsche Forschungsgemeinschaft

## Instrument



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## Fileset

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## Thumbnail

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filename: R1_manuscript_plain.docx