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Taming the stability of Pd active phases through a compartmentalizing strategy toward nanostructured catalyst supports

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  • Xinwei Yang

    (East China University of Science and Technology)

  • Qing Li

    (East China University of Science and Technology)

  • Erjun Lu

    (Fuzhou University)

  • Zhiqiang Wang

    (East China University of Science and Technology)

  • Xueqing Gong

    (East China University of Science and Technology)

  • Zhiyang Yu

    (Fuzhou University)

  • Yun Guo

    (East China University of Science and Technology)

  • Li Wang

    (East China University of Science and Technology)

  • Yanglong Guo

    (East China University of Science and Technology)

  • Wangcheng Zhan

    (East China University of Science and Technology)

  • Jinshui Zhang

    (Fuzhou University)

  • Sheng Dai

    (University of Tennessee
    University of Tennessee)

Abstract

The design and synthesis of robust sintering-resistant nanocatalysts for high-temperature oxidation reactions is ubiquitous in many industrial catalytic processes and still a big challenge in implementing nanostructured metal catalyst systems. Herein, we demonstrate a strategy for designing robust nanocatalysts through a sintering-resistant support via compartmentalization. Ultrafine palladium active phases can be highly dispersed and thermally stabilized by nanosheet-assembled γ-Al2O3 (NA-Al2O3) architectures. The NA-Al2O3 architectures with unique flowerlike morphologies not only efficiently suppress the lamellar aggregation and irreversible phase transformation of γ-Al2O3 nanosheets at elevated temperatures to avoid the sintering and encapsulation of metal phases, but also exhibit significant structural advantages for heterogeneous reactions, such as fast mass transport and easy access to active sites. This is a facile stabilization strategy that can be further extended to improve the thermal stability of other Al2O3-supported nanocatalysts for industrial catalytic applications, in particular for those involving high-temperature reactions.

Suggested Citation

  • Xinwei Yang & Qing Li & Erjun Lu & Zhiqiang Wang & Xueqing Gong & Zhiyang Yu & Yun Guo & Li Wang & Yanglong Guo & Wangcheng Zhan & Jinshui Zhang & Sheng Dai, 2019. "Taming the stability of Pd active phases through a compartmentalizing strategy toward nanostructured catalyst supports," Nature Communications, Nature, vol. 10(1), pages 1-9, December.
    • Handle: RePEc:nat:natcom:v:10:y:2019:i:1:d:10.1038_s41467-019-09662-4
    DOI: 10.1038/s41467-019-09662-4
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    Cited by:

    1. Wang, Chaofan & Shuai, Jing & Ding, Liping & Lu, Yang & Chen, Jia, 2022. "Comprehensive benefit evaluation of solar PV projects based on multi-criteria decision grey relation projection method: Evidence from 5 counties in China," Energy, Elsevier, vol. 238(PB).

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