Lattice engineering of noble metal-based nanomaterials <i>via</i> metal–nonmetal interactions for catalytic applications

Zheng, Long; Xu, Lei; Gu, Ping; Chen, Ye

doi:10.1039/d4nr00561a

Nanoscale

2024

DOI: 10.1039/d4nr00561a

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Lattice engineering of noble metal-based nanomaterials via metal–nonmetal interactions for catalytic applications

Long Zheng,

Lei Xu,

Ping Gu

et al.

Abstract: Noble metal-based nanomaterials possess outstanding catalytic properties in various chemical reactions. However, the increasing cost of noble metals severely hinders their large-scale applications. A cost-effective strategy is incorporating noble metals...

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Implications for the Hydrogenation of Propyne and Propene with Parahydrogen due to the in situ Transformation of Rh₂C to Rh⁰/C

Pokochueva,

Kountoupi,

Janák

et al. 2024

ChemPhysChem

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NMR spectroscopy studies using parahydrogen‐induced polarization have previously established the existence of the pairwise hydrogen addition route in the hydrogenation of unsaturated hydrocarbons over heterogeneous catalysts, including those based on rhodium (Rh0). This pathway requires the incorporation of both hydrogen atoms from one hydrogen molecule to the same product molecule. However, the underlying mechanism for such pairwise hydrogen addition must be better understood. The involvement of carbon, either in the form of carbonaceous deposits on the surface of a catalyst or as a metal carbide phase, is known to modify catalytic properties significantly and thus could also affect the pairwise hydrogen addition route. Here, we explored carbon’s role by studying the hydrogenation of propene and propyne with parahydrogen on a Rh2C catalyst and comparing the results with those for a Rh0/C catalyst obtained from Rh2C via H2 pretreatment. While the catalysts Rh2C and Rh0/C differ notably in the rate of conversion of parahydrogen to normal hydrogen as well as in terms of hydrogenation activity, our findings suggest that the carbide phase does not play a significant role in the pairwise H2 addition route on rhodium catalysts.

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Implications for the Hydrogenation of Propyne and Propene with Parahydrogen due to the in situ Transformation of Rh₂C to Rh⁰/C

Pokochueva,

Kountoupi,

Janák

et al. 2024

ChemPhysChem

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show abstract

Mechanism and research progress of hydrogen spillover in hydrogen evolution reaction

Chen,

Ni,

et al. 2024

Journal of Alloys and Compounds

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Lattice engineering of noble metal-based nanomaterials via metal–nonmetal interactions for catalytic applications

Abstract: Noble metal-based nanomaterials possess outstanding catalytic properties in various chemical reactions. However, the increasing cost of noble metals severely hinders their large-scale applications. A cost-effective strategy is incorporating noble metals...

Cited by 2 publications

References 161 publications

Implications for the Hydrogenation of Propyne and Propene with Parahydrogen due to the in situ Transformation of Rh₂C to Rh⁰/C

Implications for the Hydrogenation of Propyne and Propene with Parahydrogen due to the in situ Transformation of Rh₂C to Rh⁰/C

Mechanism and research progress of hydrogen spillover in hydrogen evolution reaction

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Lattice engineering of noble metal-based nanomaterials via metal–nonmetal interactions for catalytic applications

Abstract: Noble metal-based nanomaterials possess outstanding catalytic properties in various chemical reactions. However, the increasing cost of noble metals severely hinders their large-scale applications. A cost-effective strategy is incorporating noble metals...

Cited by 2 publications

References 161 publications

Implications for the Hydrogenation of Propyne and Propene with Parahydrogen due to the in situ Transformation of Rh2C to Rh0/C

Implications for the Hydrogenation of Propyne and Propene with Parahydrogen due to the in situ Transformation of Rh2C to Rh0/C

Mechanism and research progress of hydrogen spillover in hydrogen evolution reaction

Contact Info

Product

Resources

About

Implications for the Hydrogenation of Propyne and Propene with Parahydrogen due to the in situ Transformation of Rh₂C to Rh⁰/C

Implications for the Hydrogenation of Propyne and Propene with Parahydrogen due to the in situ Transformation of Rh₂C to Rh⁰/C