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Hydroxy‐ or chlorine‐anchored Pt single‐atom in Al2O3: Which is better for propane dehydrogenation?

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Title: Hydroxy‐ or chlorine‐anchored Pt single‐atom in Al2O3: Which is better for propane dehydrogenation?
Authors: Yang, Yanpeng1 (AUTHOR), Liu, Qiang2 (AUTHOR), Wang, Jingnan3 (AUTHOR) wjn10081711@163.com, Li, Panpan4 (AUTHOR), Miao, Chenglin1 (AUTHOR), Liu, Jianliang1 (AUTHOR), Yang, Yijun4 (AUTHOR) yjyang@bjtu.edu.cn, Wang, Jieguang1 (AUTHOR) wangjg.ripp@sinopec.com, Wang, Xi4 (AUTHOR) xiwang@bjtu.edu.cn
Source: AIChE Journal. Feb2024, Vol. 70 Issue 2, p1-9. 9p.
Subjects: Dehydrogenation, Propane, Activation energy, Aluminum oxide, Catalytic activity, Platinum
Abstract: Platinum‐based single‐atom catalysts (Pt1 SACs) can significantly improve the catalytic activity for propane dehydrogenation (PDH) because of their elevated atomic utilization. However, maintaining the high‐temperature stability of the Pt1 species is of utmost importance. To answer the key question: Hydroxy‐ or chlorine‐anchored Pt1 single atoms in Al2O3: Which is the better choice for PDH? We have designed two types of single‐atom Pt catalysts on Al2O3 via a surface group trapping strategy: Pt1–Al2O3 with isolated Pt–O species and Pt1Cl1–Al2O3 with isolated Pt–Cl species. When tested in PDH, Pt1Cl1–Al2O3 showed an exceptional activity of 145 molpropene molPt−1 min−1 at 600°C, which was 3.8 times higher than that of Pt1–Al2O3. It has been demonstrated that the isolated Pt–Cl species in Pt1Cl1–Al2O3 act as an active site and undergoes a dehydrogenation pathway with a lower energy barrier, while Pt1 in Pt1–Al2O3 undergoes a dissociation‐desorption pathway, resulting in few propene productions. [ABSTRACT FROM AUTHOR]
Copyright of AIChE Journal is the property of Wiley-Blackwell 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.)
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DbLabel: Engineering Source
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  Data: Hydroxy‐ or chlorine‐anchored Pt single‐atom in Al<subscript>2</subscript>O<subscript>3</subscript>: Which is better for propane dehydrogenation?
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  Data: <searchLink fieldCode="AR" term="%22Yang%2C+Yanpeng%22">Yang, Yanpeng</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Qiang%22">Liu, Qiang</searchLink><relatesTo>2</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Wang%2C+Jingnan%22">Wang, Jingnan</searchLink><relatesTo>3</relatesTo> (AUTHOR)<i> wjn10081711@163.com</i><br /><searchLink fieldCode="AR" term="%22Li%2C+Panpan%22">Li, Panpan</searchLink><relatesTo>4</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Miao%2C+Chenglin%22">Miao, Chenglin</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Liu%2C+Jianliang%22">Liu, Jianliang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<br /><searchLink fieldCode="AR" term="%22Yang%2C+Yijun%22">Yang, Yijun</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> yjyang@bjtu.edu.cn</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Jieguang%22">Wang, Jieguang</searchLink><relatesTo>1</relatesTo> (AUTHOR)<i> wangjg.ripp@sinopec.com</i><br /><searchLink fieldCode="AR" term="%22Wang%2C+Xi%22">Wang, Xi</searchLink><relatesTo>4</relatesTo> (AUTHOR)<i> xiwang@bjtu.edu.cn</i>
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  Data: <searchLink fieldCode="JN" term="%22AIChE+Journal%22">AIChE Journal</searchLink>. Feb2024, Vol. 70 Issue 2, p1-9. 9p.
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  Data: <searchLink fieldCode="DE" term="%22Dehydrogenation%22">Dehydrogenation</searchLink><br /><searchLink fieldCode="DE" term="%22Propane%22">Propane</searchLink><br /><searchLink fieldCode="DE" term="%22Activation+energy%22">Activation energy</searchLink><br /><searchLink fieldCode="DE" term="%22Aluminum+oxide%22">Aluminum oxide</searchLink><br /><searchLink fieldCode="DE" term="%22Catalytic+activity%22">Catalytic activity</searchLink><br /><searchLink fieldCode="DE" term="%22Platinum%22">Platinum</searchLink>
– Name: Abstract
  Label: Abstract
  Group: Ab
  Data: Platinum‐based single‐atom catalysts (Pt1 SACs) can significantly improve the catalytic activity for propane dehydrogenation (PDH) because of their elevated atomic utilization. However, maintaining the high‐temperature stability of the Pt1 species is of utmost importance. To answer the key question: Hydroxy‐ or chlorine‐anchored Pt1 single atoms in Al2O3: Which is the better choice for PDH? We have designed two types of single‐atom Pt catalysts on Al2O3 via a surface group trapping strategy: Pt1–Al2O3 with isolated Pt–O species and Pt1Cl1–Al2O3 with isolated Pt–Cl species. When tested in PDH, Pt1Cl1–Al2O3 showed an exceptional activity of 145 molpropene molPt−1 min−1 at 600°C, which was 3.8 times higher than that of Pt1–Al2O3. It has been demonstrated that the isolated Pt–Cl species in Pt1Cl1–Al2O3 act as an active site and undergoes a dehydrogenation pathway with a lower energy barrier, while Pt1 in Pt1–Al2O3 undergoes a dissociation‐desorption pathway, resulting in few propene productions. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
  Group: Ab
  Data: <i>Copyright of AIChE Journal is the property of Wiley-Blackwell 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.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.1002/aic.18288
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        Text: English
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        PageCount: 9
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    Subjects:
      – SubjectFull: Dehydrogenation
        Type: general
      – SubjectFull: Propane
        Type: general
      – SubjectFull: Activation energy
        Type: general
      – SubjectFull: Aluminum oxide
        Type: general
      – SubjectFull: Catalytic activity
        Type: general
      – SubjectFull: Platinum
        Type: general
    Titles:
      – TitleFull: Hydroxy‐ or chlorine‐anchored Pt single‐atom in Al2O3: Which is better for propane dehydrogenation?
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            NameFull: Yang, Yanpeng
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            NameFull: Liu, Qiang
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            NameFull: Wang, Jingnan
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            NameFull: Miao, Chenglin
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            – D: 01
              M: 02
              Text: Feb2024
              Type: published
              Y: 2024
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