Fischer-Tropsch synthesis: Towards a highly-selective catalyst by lanthanide promotion under relevant CO2 syngas mixtures

Guilera, Jordi; Díaz-López, José Antonio; Berenguer, Antonio; Biset‐Peiró, Martí; Andreu, Teresa

doi:10.1016/j.apcata.2021.118423

“…Syngas, obtained through reverse water gas shift reaction (RWGS) combined with the Fischer-Tropsch process offers a promising possibility for sustainable energy development. [10] Being a net carbon consuming process, RWGS is superior to other syngas production methods in mitigating the CO 2 emissions. [11] With the development of more affordable green hydrogen production technologies, RWGS is expected to become increasingly profitable as well.…”

Section: Introductionmentioning

confidence: 99%

Pt/MnO Interface Induced Defects for High Reverse Water Gas Shift Activity

Szenti,

Efremova,

Kiss

et al. 2024

Angewandte Chemie

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The implementation of supported metal catalysts heavily relies on the synergistic interactions between metal nanoparticles and the material they are dispersed on. It is clear that interfacial perimeter sites have outstanding skills for turning catalytic reactions over, however, high activity and selectivity of the designed interface‐induced metal distortion can also obtain catalysts for the most crucial industrial processes as evidenced in this paper. Herein, the beneficial synergy established between designed Pt nanoparticles and MnO in the course of the reverse water gas shift (RWGS) reaction resulted in a Pt/MnO catalyst having ~10 times higher activity compared to the reference Pt/SBA‐15 catalyst with >99% CO selectivity. Under activation, a crystal assembly through the metallic Pt (110) and MnO evolved, where the plane distance differences caused a mismatched row structure in softer Pt nanoparticles, which was identified by microscopic and surface‐sensitive spectroscopic characterizations combined with density functional theory simulations. The generated edge dislocations caused the Pt lattice expansion which led to the weakening of the Pt‐CO bond. Even though MnO also exhibited an adverse effect on Pt by lowering the number of exposed metal sites, rapid desorption of the linearly adsorbed CO species governed the performance of the Pt/MnO in the RWGS.

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Homogeneous F riedel– C rafts Alkylation

Dasireddy¹,

Singh²,

Joseph³

et al. 2023

Industrial Arene Chemistry

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Pt/MnO Interface Induced Defects for High Reverse Water Gas Shift Activity

Szenti,

Efremova,

Kiss

et al. 2024

Angew Chem Int Ed

0

View full text Add to dashboard Cite

The implementation of supported metal catalysts heavily relies on the synergistic interactions between metal nanoparticles and the material they are dispersed on. It is clear that interfacial perimeter sites have outstanding skills for turning catalytic reactions over, however, high activity and selectivity of the designed interface‐induced metal distortion can also obtain catalysts for the most crucial industrial processes as evidenced in this paper. Herein, the beneficial synergy established between designed Pt nanoparticles and MnO in the course of the reverse water gas shift (RWGS) reaction resulted in a Pt/MnO catalyst having ~10 times higher activity compared to the reference Pt/SBA‐15 catalyst with >99% CO selectivity. Under activation, a crystal assembly through the metallic Pt (110) and MnO evolved, where the plane distance differences caused a mismatched row structure in softer Pt nanoparticles, which was identified by microscopic and surface‐sensitive spectroscopic characterizations combined with density functional theory simulations. The generated edge dislocations caused the Pt lattice expansion which led to the weakening of the Pt‐CO bond. Even though MnO also exhibited an adverse effect on Pt by lowering the number of exposed metal sites, rapid desorption of the linearly adsorbed CO species governed the performance of the Pt/MnO in the RWGS.

show abstract

Fischer-Tropsch synthesis: Towards a highly-selective catalyst by lanthanide promotion under relevant CO2 syngas mixtures

Cited by 18 publications

References 51 publications

Pt/MnO Interface Induced Defects for High Reverse Water Gas Shift Activity

Pt/MnO Interface Induced Defects for High Reverse Water Gas Shift Activity

Homogeneous F riedel– C rafts Alkylation

Pt/MnO Interface Induced Defects for High Reverse Water Gas Shift Activity

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