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A 36-ring zeolite with intrinsic cylindrical mesopores.

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Title: A 36-ring zeolite with intrinsic cylindrical mesopores.
Authors: Sun, Jiazheng (AUTHOR), Tian, Xudong (AUTHOR), Zhang, Zhenghan (AUTHOR), Liu, Jing (AUTHOR), Han, Lei (AUTHOR), Xu, Fanrong (AUTHOR), Jiang, Han (AUTHOR), Ma, Chao (AUTHOR), Guo, Hongwei (AUTHOR), Lin, Cong (AUTHOR), Jiang, Qike (AUTHOR), Li, Guangchao (AUTHOR), Lo, Tsz Woon Benedict (AUTHOR), Song, Haitao (AUTHOR), Lin, Wei (AUTHOR), Xu, Le (AUTHOR), Li, Jian (AUTHOR)
Source: Science. 4/2/2026, Vol. 392 Issue 6793, p83-86. 4p.
Subjects: Zeolites, Mesopores, Separation (Technology), Catalysis, Cracking process (Petroleum industry), Aluminum silicates, Thermal stability
Abstract: Stable extra-large-pore zeolites are highly desirable for catalysis and molecular separation, but most remain microporous, limiting their effectiveness for bulky substrates. Among the few extra-large-pore zeolites that exhibit mesoporosity, the pores typically form as elongated, noncircular pore apertures. We report that NJU120-6, a stable silicate zeolite with an intrinsic cylindrical mesoporous system, has the currently largest 36-ring windows with a free diameter of 25.71 angstroms by 19.12 angstroms. NJU120-6 exhibits the lowest framework density of 9.39 silicon atoms per cubic nanometer and a pore volume of 0.66 cubic centimeters per gram. It remains stable up to 1173 kelvin and can incorporate aluminum and titanium, enabling superior performance in catalytic cracking and in liquid-phase alkene oxidation of bulky molecules, respectively. Editor's summary: A high-silicate zeolite containing channels formed by a 36-membered ring exhibits high thermal stability for petroleum processing. Sun et al. used large, dicationic organic structure–directing agents to synthesize aluminosilicate zeolites with free pore dimensions of 2.6 by 1.9 nanometers. These zeolites were stable up to 900°C and, through incorporation of aluminum and titanium, could catalytically crack large hydrocarbons. —Phil Szuromi [ABSTRACT FROM AUTHOR]
Copyright of Science is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Psychology and Behavioral Sciences Collection
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An: 192726656
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  Label: Title
  Group: Ti
  Data: A 36-ring zeolite with intrinsic cylindrical mesopores.
– Name: Author
  Label: Authors
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  Data: <searchLink fieldCode="AR" term="%22Sun%2C+Jiazheng%22">Sun, Jiazheng</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Tian%2C+Xudong%22">Tian, Xudong</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Zhang%2C+Zhenghan%22">Zhang, Zhenghan</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Jing%22">Liu, Jing</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Han%2C+Lei%22">Han, Lei</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Fanrong%22">Xu, Fanrong</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jiang%2C+Han%22">Jiang, Han</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Ma%2C+Chao%22">Ma, Chao</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Guo%2C+Hongwei%22">Guo, Hongwei</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lin%2C+Cong%22">Lin, Cong</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Jiang%2C+Qike%22">Jiang, Qike</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Guangchao%22">Li, Guangchao</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lo%2C+Tsz+Woon+Benedict%22">Lo, Tsz Woon Benedict</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Song%2C+Haitao%22">Song, Haitao</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Lin%2C+Wei%22">Lin, Wei</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Xu%2C+Le%22">Xu, Le</searchLink> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Li%2C+Jian%22">Li, Jian</searchLink> (AUTHOR)
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  Data: <searchLink fieldCode="JN" term="%22Science%22">Science</searchLink>. 4/2/2026, Vol. 392 Issue 6793, p83-86. 4p.
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  Data: <searchLink fieldCode="DE" term="%22Zeolites%22">Zeolites</searchLink><br /><searchLink fieldCode="DE" term="%22Mesopores%22">Mesopores</searchLink><br /><searchLink fieldCode="DE" term="%22Separation+%28Technology%29%22">Separation (Technology)</searchLink><br /><searchLink fieldCode="DE" term="%22Catalysis%22">Catalysis</searchLink><br /><searchLink fieldCode="DE" term="%22Cracking+process+%28Petroleum+industry%29%22">Cracking process (Petroleum industry)</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+silicates%22">Aluminum silicates</searchLink><br /><searchLink fieldCode="DE" term="%22Thermal+stability%22">Thermal stability</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Stable extra-large-pore zeolites are highly desirable for catalysis and molecular separation, but most remain microporous, limiting their effectiveness for bulky substrates. Among the few extra-large-pore zeolites that exhibit mesoporosity, the pores typically form as elongated, noncircular pore apertures. We report that NJU120-6, a stable silicate zeolite with an intrinsic cylindrical mesoporous system, has the currently largest 36-ring windows with a free diameter of 25.71 angstroms by 19.12 angstroms. NJU120-6 exhibits the lowest framework density of 9.39 silicon atoms per cubic nanometer and a pore volume of 0.66 cubic centimeters per gram. It remains stable up to 1173 kelvin and can incorporate aluminum and titanium, enabling superior performance in catalytic cracking and in liquid-phase alkene oxidation of bulky molecules, respectively. Editor's summary: A high-silicate zeolite containing channels formed by a 36-membered ring exhibits high thermal stability for petroleum processing. Sun et al. used large, dicationic organic structure–directing agents to synthesize aluminosilicate zeolites with free pore dimensions of 2.6 by 1.9 nanometers. These zeolites were stable up to 900°C and, through incorporation of aluminum and titanium, could catalytically crack large hydrocarbons. —Phil Szuromi [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of Science is the property of American Association for the Advancement of Science and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
PLink https://search.ebscohost.com/login.aspx?direct=true&site=eds-live&db=pbh&AN=192726656
RecordInfo BibRecord:
  BibEntity:
    Identifiers:
      – Type: doi
        Value: 10.1126/science.aec4882
    Languages:
      – Code: eng
        Text: English
    PhysicalDescription:
      Pagination:
        PageCount: 4
        StartPage: 83
    Subjects:
      – SubjectFull: Zeolites
        Type: general
      – SubjectFull: Mesopores
        Type: general
      – SubjectFull: Separation (Technology)
        Type: general
      – SubjectFull: Catalysis
        Type: general
      – SubjectFull: Cracking process (Petroleum industry)
        Type: general
      – SubjectFull: Aluminum silicates
        Type: general
      – SubjectFull: Thermal stability
        Type: general
    Titles:
      – TitleFull: A 36-ring zeolite with intrinsic cylindrical mesopores.
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              Text: 4/2/2026
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              Y: 2026
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