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September 8, 2026AIChE Journal0 citations

Tuning Stereoselectivity in Polycyclic Aromatic Hydrogenation via Metal-Support Interface...

Regulating stereoselectivity in polycyclic aromatics hydrogenation via metal–support interface engineering

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Authors

RCRan ChenMYMengxian YuKXKang Xue

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Overview

Catalytic study demonstrates bidirectional stereochemical control during polycyclic aromatic hydrogenation, indicating interfacial electron transfer dictates isomeric selectivity.

Key Points

  • To overcome thermodynamic barriers and selectively guide cis- versus trans-isomer generation during polycyclic aromatic hydrocarbon hydrogenation using metal–support interface engineering.
  • Engineered isostructural M–O–Ce (M = Ru, Pd) interfacial sites on CeO2 supports with systematically modulated interfacial site concentrations.
  • Evaluated catalytic hydrogenation selectivity across various functionalized polycyclic aromatic hydrocarbons and examined the correlation between interfacial electron transfer and stereoisomeric pathway barriers.
  • Modulating interfacial sites on Ru/CeO2 linearly enhanced cis-decalin production to a peak cis/trans ratio of 6.09.
  • Adjusting Pd/CeO2 interfacial sites preferentially promoted trans-decalin generation, achieving a trans/cis ratio of 2.60.
  • Identified decoupled catalytic duties where metallic sites sustain hydrogenation activity while M–O–Ce interfaces switch stereoselectivity via electronic barrier modifications.
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Cite This Study

Chen et al. (2026) studied this question.

synapsesocial.com/papers/6a9fd83b58e84d0ff5b47a03https://doi.org/10.1002/aic.70620
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