Synergistic Catalytic Removal of NOx and n-Butylamine via Spatially Separated Cooperative Sites

Yan, Lijun; Zhu, Huifang; Liu, Xiangyu; Peng, Dengchao; Zhang, Jin; Cheng, Danhong; Chen, Aling; Zhang, Dengsong

doi:10.1021/acs.est.4c01840

Environ. Sci. Technol.

2024

DOI: 10.1021/acs.est.4c01840

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Synergistic Catalytic Removal of NO_x and n-Butylamine via Spatially Separated Cooperative Sites

Lijun Yan,

Huifang Zhu,

Xiangyu Liu

et al.

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Cited by 9 publications

References 59 publications

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Polyoxometalates‐Mediated Selectivity in Pt Single‐Atoms on Ceria for Environmental Catalysis

Lan,

Yalavarthi,

Shen

et al. 2024

Angewandte Chemie

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Optimizing the reactivity and selectivity of single‐atom catalysts (SACs) remains a crucial yet challenging issue in heterogeneous catalysis. This study demonstrates selective catalysis facilitated by a polyoxometalates‐mediated electronic interaction (PMEI) in a Pt single‐atom catalyst supported on CeO2 modified with Keggin‐type phosphotungstate acid (HPW), labeled as Pt1/CeO2‐HPW. The PMEI effect originates from the unique arrangement of isolated Pt atoms and HPW clusters on CeO2 surface. Electrons are transferred from ceria support to the electrophilic tungsten in HPW clusters, and subsequently, Pt atoms donate electrons to the now electron‐deficient ceria. This phenomenon enhances the positive charge of Pt atoms, moderating O2 activation and limiting lattice oxygen mobility compared to the conventional Pt1/CeO2 catalyst. The resulting electronic structure of Pt combined with the strong and local acidic environment of HPW on Pt1/CeO2‐HPW leads to improved degradation of NH3, N2 selectivity in the NO conversion, and CO2 yield when inputting volatile organic compounds. This study sheds the light on the design of SACs with balanced reactivity and selectivity for environmental catalysis applications.

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Polyoxometalates‐Mediated Selectivity in Pt Single‐Atoms on Ceria for Environmental Catalysis

Lan,

Yalavarthi,

Shen

et al. 2024

Angewandte Chemie

View full text Add to dashboard Cite

show abstract

Polyoxometalates‐Mediated Selectivity in Pt Single‐Atoms on Ceria for Environmental Catalysis

Lan,

Yalavarthi,

Shen

et al. 2024

Angew Chem Int Ed

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Defect-confined Ag clusters on TiO2 for catalytic degradation of N-VOCs and collaborative production of NH3

Jin,

Li,

Wang

et al. 2025

Applied Catalysis B: Environment and Energy

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Synergistic Catalytic Removal of NO_x and n-Butylamine via Spatially Separated Cooperative Sites

Cited by 9 publications

References 59 publications

Polyoxometalates‐Mediated Selectivity in Pt Single‐Atoms on Ceria for Environmental Catalysis

Polyoxometalates‐Mediated Selectivity in Pt Single‐Atoms on Ceria for Environmental Catalysis

Polyoxometalates‐Mediated Selectivity in Pt Single‐Atoms on Ceria for Environmental Catalysis

Defect-confined Ag clusters on TiO2 for catalytic degradation of N-VOCs and collaborative production of NH3

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