IDEAS home Printed from https://ideas.repec.org/a/nat/natcom/v11y2020i1d10.1038_s41467-020-17738-9.html
   My bibliography  Save this article

Entropy-stabilized single-atom Pd catalysts via high-entropy fluorite oxide supports

Author

Listed:
  • Haidi Xu

    (Sichuan University
    Chemical Sciences Division, Oak Ridge National Laboratory
    University of Tennessee)

  • Zihao Zhang

    (Chemical Sciences Division, Oak Ridge National Laboratory
    University of Tennessee)

  • Jixing Liu

    (University of Tennessee)

  • Chi-Linh Do-Thanh

    (University of Tennessee)

  • Hao Chen

    (University of Tennessee)

  • Shuhao Xu

    (Sichuan University)

  • Qinjing Lin

    (Sichuan University)

  • Yi Jiao

    (Sichuan University)

  • Jianli Wang

    (Sichuan University)

  • Yun Wang

    (Sinocat Environmental Technology Co. Ltd.)

  • Yaoqiang Chen

    (Sichuan University
    Sichuan University)

  • Sheng Dai

    (Chemical Sciences Division, Oak Ridge National Laboratory
    University of Tennessee)

Abstract

Single-atom catalysts (SACs) have attracted considerable attention in the catalysis community. However, fabricating intrinsically stable SACs on traditional supports (N-doped carbon, metal oxides, etc.) remains a formidable challenge, especially under high-temperature conditions. Here, we report a novel entropy-driven strategy to stabilize Pd single-atom on the high-entropy fluorite oxides (CeZrHfTiLa)Ox (HEFO) as the support by a combination of mechanical milling with calcination at 900 °C. Characterization results reveal that single Pd atoms are incorporated into HEFO (Pd1@HEFO) sublattice by forming stable Pd–O–M bonds (M = Ce/Zr/La). Compared to the traditional support stabilized catalysts such as Pd@CeO2, Pd1@HEFO affords the improved reducibility of lattice oxygen and the existence of stable Pd–O–M species, thus exhibiting not only higher low-temperature CO oxidation activity but also outstanding resistance to thermal and hydrothermal degradation. This work therefore exemplifies the superiority of high-entropy materials for the preparation of SACs.

Suggested Citation

  • Haidi Xu & Zihao Zhang & Jixing Liu & Chi-Linh Do-Thanh & Hao Chen & Shuhao Xu & Qinjing Lin & Yi Jiao & Jianli Wang & Yun Wang & Yaoqiang Chen & Sheng Dai, 2020. "Entropy-stabilized single-atom Pd catalysts via high-entropy fluorite oxide supports," Nature Communications, Nature, vol. 11(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17738-9
    DOI: 10.1038/s41467-020-17738-9
    as

    Download full text from publisher

    File URL: https://www.nature.com/articles/s41467-020-17738-9
    File Function: Abstract
    Download Restriction: no
    File URL: https://libkey.io/10.1038/s41467-020-17738-9?utm_source=ideas
    LibKey link: if access is restricted and if your library uses this service, LibKey will redirect you to where you can use your library subscription to access this item
    ---><---

    Citations

    Citations are extracted by the CitEc Project, subscribe to its RSS feed for this item.
    as


    Cited by:

    1. Lei Su & Huaixun Huyan & Abhishek Sarkar & Wenpei Gao & Xingxu Yan & Christopher Addiego & Robert Kruk & Horst Hahn & Xiaoqing Pan, 2022. "Direct observation of elemental fluctuation and oxygen octahedral distortion-dependent charge distribution in high entropy oxides," Nature Communications, Nature, vol. 13(1), pages 1-10, December.

    More about this item

    Statistics

    Access and download statistics

    Corrections

    All material on this site has been provided by the respective publishers and authors. You can help correct errors and omissions. When requesting a correction, please mention this item's handle: RePEc:nat:natcom:v:11:y:2020:i:1:d:10.1038_s41467-020-17738-9. See general information about how to correct material in RePEc.

    If you have authored this item and are not yet registered with RePEc, we encourage you to do it here. This allows to link your profile to this item. It also allows you to accept potential citations to this item that we are uncertain about.

    We have no bibliographic references for this item. You can help adding them by using this form .

    If you know of missing items citing this one, you can help us creating those links by adding the relevant references in the same way as above, for each refering item. If you are a registered author of this item, you may also want to check the "citations" tab in your RePEc Author Service profile, as there may be some citations waiting for confirmation.

    For technical questions regarding this item, or to correct its authors, title, abstract, bibliographic or download information, contact: Sonal Shukla or Springer Nature Abstracting and Indexing (email available below). General contact details of provider: http://www.nature.com .

    Please note that corrections may take a couple of weeks to filter through the various RePEc services.

    IDEAS is a RePEc service. RePEc uses bibliographic data supplied by the respective publishers.