Zeolite-promoted platinum catalyst for efficient reduction of nitrogen oxides with hydrogen
Internal combustion engine fueled by carbon-free hydrogen (H<sub>2</sub>-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 (NO<sub>x</sub>) with H<sub>2</sub> (H<sub>2</sub>-SCR), a process aiming at NO<sub>x</sub> removal from H<sub>2</sub>-ICE. Via the physical mixing of Pt/TiO<sub>2</sub> with Y zeolite (Pt/TiO<sub>2</sub> + Y), a remarkable enhancement of NO<sub>x</sub> reduction activity and N<sub>2</sub> 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 H<sub>2</sub> activation, leading to the strikingly elevated H<sub>2</sub>-SCR activity and N<sub>2</sub> selectivity on Pt/TiO<sub>2</sub> + Y catalyst. This study provides a unique, easy and sustainable physical mixing approach to achieve proficient heterogeneous catalysis for environmental applications.
Authors
- Lu Ma (ORCID: https://orcid.org/0000-0001-9646-0738)
- Daekun Kim (ORCID: https://orcid.org/0000-0003-2662-6741)
- Kailong Ye
- Hongliang Xin (ORCID: https://orcid.org/0000-0001-9344-1697)
- Yuejin Li (ORCID: https://orcid.org/0000-0003-1284-4668)
- Fudong Liu (ORCID: https://orcid.org/0000-0001-8771-5938)
- Shaohua Xie (ORCID: https://orcid.org/0000-0003-1550-7421)
- Steven N. Ehrlich (ORCID: https://orcid.org/0000-0002-4570-8833)
- Liping Liu (ORCID: https://orcid.org/0000-0001-7543-1751)
- Xing Zhang (ORCID: https://orcid.org/0009-0001-6566-1921)
Institutions
- University of California, Riverside (US)
- University of Central Florida (US)
- Brookhaven National Laboratory (US)
- Community Catalyst (US)
- Virginia Tech (US)
Publication Details
- Journal
- Nature Communications
- Published
- 2024-09-12
- DOI
- https://doi.org/10.1038/s41467-024-52382-7
- Citations
- 22
- Primary Topic
- Catalytic Processes in Materials Science
- Type
- article
- Field-Weighted Citation Impact
- 2.58
Funders
- National Science Foundation
- U.S. Department of Energy
- Virginia Polytechnic Institute and State University
- University of Central Florida
- Sasol
- Office of Science
- BASF Corporation
- University of California, Riverside
- Division of Chemical, Bioengineering, Environmental, and Transport Systems
- Basic Energy Sciences
- Brookhaven National Laboratory