{
  "abstract": "Zeolites are promising selective CO₂ adsorbents, but their performance is often limited by diffusion constraints. Here, we explore the utilization of a large-pore offretite-type zeolite prepared from an organic-free precursor mixture as an adsorbent in dynamic CO 2 separation. Furthermore, by applying a one-dimensional pressure downsizing approach, nano-sized offretite zeolite composed of particles <200 nm (OFF-200) was produced from the parent micron-sized offretite of 2000 nm (OFF-2000). The performance of the nano-sized OFF-200 in the separation of dilute CO 2 from N 2 was comprehensively compared to that of the micron-sized OFF-2000, both possessing identical chemical compositions but differing in particle size. Breakthrough curve analysis of these samples was conducted in order to understand the CO 2 diffusion behaviour of the samples with different particle sizes. The greater CO 2 separation performance of OFF-200 in terms of higher CO 2 selectivity and faster kinetics is attributed to the more rapid diffusion and improved accessibility of the adsorption sites. The weaker strength of the adsorption sites of OFF-200 at low CO 2 coverage results in a higher proportion of desorbed CO 2 , leading to a more efficient separation cycle. The OFF-200 achieved a higher estimated monthly CO 2 removal (1039 vs 850 mmol g −1 month −1 at 60 °C), highlighting the potential of nano-sized OFF as a solid adsorbent for CO 2 separation.",
  "abstract_shown": true,
  "affiliations": [],
  "article_type": null,
  "arxiv": null,
  "author_total": 7,
  "authors": [
    {
      "name": "Risheng Wang"
    },
    {
      "name": "Sajjad Ghojavand"
    },
    {
      "name": "Edwin Clatworthy"
    },
    {
      "name": "Diógenes Honorato Piva"
    },
    {
      "name": "Marie Desmurs"
    },
    {
      "name": "Valérie Ruaux"
    },
    {
      "name": "Svetlana Mintova"
    }
  ],
  "bibtex": "https://research.draconitic.com/paper/dys0d2w30enj8.bib",
  "cited_by": 0,
  "doi": "10.1016/j.cejgas.2026.100036",
  "fulltext_url": null,
  "id": "dys0d2w30enj8",
  "issns": [
    "3051-0031",
    "3051-0031"
  ],
  "landing_url": "https://hal.science/hal-05854906v1",
  "language": "en",
  "licence": "CC-BY",
  "licence_label": "CC BY",
  "licence_source": "journal",
  "licence_url": "https://creativecommons.org/licenses/by/4.0/",
  "metadata_licence": null,
  "native_subjects": [
    [
      "hal",
      "0.chim"
    ],
    [
      "openalex",
      "2210|Carbon Dioxide Capture Technologies"
    ]
  ],
  "openalex": "W7125591994",
  "pdf_url": null,
  "pmcid": null,
  "pmid": null,
  "published": "2026-11-06",
  "publisher": "Elsevier B.V.",
  "ris": "https://research.draconitic.com/paper/dys0d2w30enj8.ris",
  "sources": [
    {
      "first_seen": "2026-11-06T12:20:44Z",
      "native_id": "hal-05854906",
      "source": "hal",
      "url": "https://hal.science/hal-05854906v1"
    }
  ],
  "subjects": [
    {
      "field": "chemistry",
      "origin": "hal:0.chim",
      "subfield": "general"
    }
  ],
  "title": "Elucidating the role of particle downsizing in offretite zeolites for dynamic CO2/N2 separation",
  "title_text": "Elucidating the role of particle downsizing in offretite zeolites for dynamic CO2/N2 separation",
  "type": "peer-reviewed",
  "updated_at": "2026-11-08T12:20:49Z",
  "url": "https://research.draconitic.com/paper/dys0d2w30enj8",
  "venue": "Chemical engineering journal. Green and sustainable",
  "versions": []
}