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- W4280490535 abstract "Abstract Single-atom catalysts (SACs) offer many advantages, such as atom economy and high chemoselectivity; however, their practical application in liquid-phase heterogeneous catalysis is hampered by the productivity bottleneck as well as catalyst leaching. Flow chemistry is a well-established method to increase the conversion rate of catalytic processes, however, SAC-catalysed flow chemistry in packed-bed type flow reactor is disadvantaged by low turnover number and poor stability. In this study, we demonstrate the use of fuel cell-type flow stacks enabled exceptionally high quantitative conversion in single atom-catalyzed reactions, as exemplified by the use of Pt SAC-on-MoS 2 /graphite felt catalysts incorporated in flow cell. A turnover frequency of approximately 8000 h −1 that corresponds to an aniline productivity of 5.8 g h −1 is achieved with a bench-top flow module (nominal reservoir volume of 1 cm 3 ), with a Pt 1 -MoS 2 catalyst loading of 1.5 g (3.2 mg of Pt). X-ray absorption fine structure spectroscopy combined with density functional theory calculations provide insights into stability and reactivity of single atom Pt supported in a pyramidal fashion on MoS 2 . Our study highlights the quantitative conversion bottleneck in SAC-mediated fine chemicals production can be overcome using flow chemistry." @default.
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- W4280490535 date "2022-05-19" @default.
- W4280490535 modified "2023-10-15" @default.
- W4280490535 title "Addressing the quantitative conversion bottleneck in single-atom catalysis" @default.
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- W4280490535 doi "https://doi.org/10.1038/s41467-022-30551-w" @default.
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