# Nanoconfinement‐Driven Energy‐Efficient CO<sub>2</sub> Capture and Release at High Pressures on a Unique Large‐Pore Mesoporous Carbon

https://mdr.nims.go.jp/datasets/60e52bd3-feb4-4240-b0ef-79bcb7635bf8

## File

- [ChemSusChem2025.pdf](https://mdr.nims.go.jp/filesets/fcf89f6c-4b22-4bf7-8611-4a19ffd06826/download) ([Detail](https://mdr.nims.go.jp/filesets/fcf89f6c-4b22-4bf7-8611-4a19ffd06826.md))

## Id

60e52bd3-feb4-4240-b0ef-79bcb7635bf8

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-11-10T09:47:45.240621Z

## Updated at

2026-01-28T07:30:10.909235Z

## Published at

2026-01-28T05:15:41.094327Z

## Doi

https://doi.org/10.48505/nims.5889

## First published url

https://doi.org/10.1002/cssc.202402034

## Date published

2025-05-19

## Recorded date published

2025-5-19

## Resource type

journal_article

## Manuscript type

accepted_manuscript

## Collection



## Title

- title: Nanoconfinement‐Driven Energy‐Efficient CO<sub>2</sub> Capture and Release
    at High Pressures on a Unique Large‐Pore Mesoporous Carbon
  title_type: original
  lang: en

## Description

- description: Although microporous carbons with high surface areas and pore volumes
    can perform well for CO2 separations under high pressure conditions, their energy-demanding
    regeneration may render them a less attractive material option. Here, we developed
    a large-pore mesoporous carbon with pore sizes centered around 20-30 nm using
    a templated technical lignin. During the soft-templating process, unique cylindrical
    supramolecular assemblies form from the copolymer template, distinct from other
    systems reported thus far. This peculiar nanostructuring takes place due to the
    presence of polyethylene glycol (PEG) segments on both the Pluronic® template
    and the PEG-grafted lignin derivative (glycol lignin). A large increase in CO2
    uptake occurs on the resulting large-pore mesoporous carbon at 270 K close to
    the saturation pressure, owing to capillary condensation. This phenomenon enables
    outstanding CO2/CH4 selectivity, and a swift regeneration process with desorbed
    CO2 per unit pressure far outperforming other nanoporous carbons. We propose large-pore
    mesoporous carbons as a novel family of CO2 capture adsorbents, based on the phase-transition
    behavior shift of CO2 in the nanoconfined environment, that is, the early condensation
    of CO2 in mesopores below the bulk saturation pressure under relevant conditions.
    This novel concept may open new horizons for physisorptive CO2 separations with
    energy-efficient regeneration options.
  description_type: abstract
  lang: und

## Creator

- name: László Szabó
  role: author
  orcid: https://orcid.org/0000-0003-4268-4423
  organization: National Institute for Materials Science
- name: Mizuki Inoue
  role: author
  orcid: https://orcid.org/0000-0003-3098-5448
  organization: National Institute for Materials Science
- name: Yurina Sekine
  role: author
- name: Ryuhei Motokawa
  role: author
- name: Yusuke Matsumoto
  role: author
- name: Thi Thi Nge
  role: author
- name: Edhuan Ismail
  role: author
  orcid: https://orcid.org/0000-0003-1031-6562
  organization: National Institute for Materials Science
- name: Izumi Ichinose
  role: author
  orcid: https://orcid.org/0000-0002-2236-0942
  organization: National Institute for Materials Science
- name: Tatsuhiko Yamada
  role: author

## Contact agent



## Publisher

organization: Wiley

## Managing organization



## Keyword

- subject: Carbon dioxide fixation
  schema: not_defined
- subject: Lignin
  schema: not_defined
- subject: Mesoporous carbon
  schema: not_defined
- subject: Regeneration
  schema: not_defined
- subject: Template synthesis
  schema: not_defined

## Rights

- description: 'This is the peer reviewed version of the following article: L. Szabó,
    M. Inoue, Y. Sekine, R. Motokawa, Y. Matsumoto, T. T. Nge, E. Ismail, I. Ichinose,
    T. Yamada, ChemSusChem 2025, 18, e202402034, which has been published in final
    form at https://doi.org/10.1002/cssc.202402034. 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: 2025-01-28
end_date: 2026-01-28

## Journal

- title: ChemSusChem
  issn: '18645631'
  volume: '18'
  issue: '10'
  article_number: e202402034

## Conference



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## Funding

- identifier: J008722
  funder_name: Ministry of Agriculture, Forestry and Fisheries
- identifier: 24K01409
  funder_name: Japan Society for the Promotion of Science

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## Fileset

- id: fcf89f6c-4b22-4bf7-8611-4a19ffd06826
  filename: ChemSusChem2025.pdf
  content_type: application/pdf
  size: 2829860
  md5: ab09f9692f0e174e259c7d4773859afc

## Thumbnail

fileset_id: fcf89f6c-4b22-4bf7-8611-4a19ffd06826
filename: ChemSusChem2025.pdf