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Zeolite-promoted platinum catalyst for efficient reduction of nitrogen oxides with hydrogen

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  • Shaohua Xie

    (Center for Environmental Research and Technology (CE-CERT), Materials Science and Engineering (MSE) Program, University of California
    Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida)

  • Liping Liu

    (Virginia Polytechnic Institute and State University)

  • Yuejin Li

    (BASF Environmental Catalyst and Metal Solutions)

  • Kailong Ye

    (Center for Environmental Research and Technology (CE-CERT), Materials Science and Engineering (MSE) Program, University of California
    Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida)

  • Daekun Kim

    (Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida)

  • Xing Zhang

    (Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida)

  • Hongliang Xin

    (Virginia Polytechnic Institute and State University)

  • Lu Ma

    (Brookhaven National Laboratory, Upton)

  • Steven N. Ehrlich

    (Brookhaven National Laboratory, Upton)

  • Fudong Liu

    (Center for Environmental Research and Technology (CE-CERT), Materials Science and Engineering (MSE) Program, University of California
    Catalysis Cluster for Renewable Energy and Chemical Transformations (REACT), NanoScience Technology Center (NSTC), University of Central Florida)

Abstract

Internal combustion engine fueled by carbon-free hydrogen (H2-ICE) offers a promising alternative for sustainable transportation. Herein, we report a facile and universal strategy through the physical mixing of Pt catalyst with zeolites to significantly improve the catalytic performance in the selective catalytic reduction of nitrogen oxides (NOx) with H2 (H2-SCR), a process aiming at NOx removal from H2-ICE. Via the physical mixing of Pt/TiO2 with Y zeolite (Pt/TiO2 + Y), a remarkable enhancement of NOx reduction activity and N2 selectivity was simultaneously achieved. The incorporation of Y zeolite effectively captured the in-situ generated water, fostering a water-rich environment surrounding the Pt active sites. This environment weakened the NO adsorption while concurrently promoting the H2 activation, leading to the strikingly elevated H2-SCR activity and N2 selectivity on Pt/TiO2 + Y catalyst. This study provides a unique, easy and sustainable physical mixing approach to achieve proficient heterogeneous catalysis for environmental applications.

Suggested Citation

  • Shaohua Xie & Liping Liu & Yuejin Li & Kailong Ye & Daekun Kim & Xing Zhang & Hongliang Xin & Lu Ma & Steven N. Ehrlich & Fudong Liu, 2024. "Zeolite-promoted platinum catalyst for efficient reduction of nitrogen oxides with hydrogen," Nature Communications, Nature, vol. 15(1), pages 1-11, December.
    • Handle: RePEc:nat:natcom:v:15:y:2024:i:1:d:10.1038_s41467-024-52382-7
    DOI: 10.1038/s41467-024-52382-7
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    References listed on IDEAS

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    1. Stefan Sterlepper & Marcus Fischer & Johannes Claßen & Verena Huth & Stefan Pischinger, 2021. "Concepts for Hydrogen Internal Combustion Engines and Their Implications on the Exhaust Gas Aftertreatment System," Energies, MDPI, vol. 14(23), pages 1-13, December.
    2. Raza, Syed Ali & Shah, Nida & Sharif, Arshian, 2019. "Time frequency relationship between energy consumption, economic growth and environmental degradation in the United States: Evidence from transportation sector," Energy, Elsevier, vol. 173(C), pages 706-720.
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