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Showing 1–8 of 8 results
Advanced filters: Author: Christophe Copéret Clear advanced filters

  • The fine tuning of the interface between single atoms and their supports may open advantageous reactivity scenarios, although it remains challenging. Now, Liu, Copéret and colleagues address this problem by dispersing Ir(III) species on well-defined single-crystalline MgO(111) 2D nanosheets, achieving a unique reactivity for the coupling of benzene and ethylene.

    • Pengxin Liu
    • Xing Huang
    • Christophe Copéret
    Research
    Nature Catalysis
    Volume: 4, P: 968-975

  • Earth-abundant Ni-X (X= Zn, Ga, In) bimetallic nanocrystals are achieved via colloidal synthesis and studied as alkyne semihydrogenation catalysts, for which the Ni3Zn composition is found to offer an optimal balance between selectivity and activity.

    • Jasper Clarysse
    • Jordan De Jesus Silva
    • Vanessa Wood
    ResearchOpen Access
    Nature Communications
    Volume: 16, P: 1-11

  • The valorization of CO2 via its hydrogenation to methanol is a highly sought-after reaction although only a handful of catalysts can efficiently promote this transformation. Here, the authors engineer the interface of a copper catalyst supported on a silica–molybdenum MXene composite, achieving a remarkable performance in the reduction of CO2 to methanol.

    • Hui Zhou
    • Zixuan Chen
    • Christoph R. Müller
    Research
    Nature Catalysis
    Volume: 4, P: 860-871

  • A combination of spectroscopy, microscopy and theoretical calculations shows that the reactivity of titanium silicalite-1 as an epoxidation catalyst is due to the presence of dinuclear titanium sites.

    • Christopher P. Gordon
    • Hauke Engler
    • Christophe Copéret
    Research
    Nature
    Volume: 586, P: 708-713

  • The authors identify a dynamic site renewal and decay cycle, mediated by proton transfers involving proximal Brønsted acidic OH groups, which operates concurrently with the Chauvin cycle and could address roadblocks associated with industrial metathesis processes.

    • Terry Z. H. Gani
    • Zachariah J. Berkson
    • Yuriy Román-Leshkov
    Research
    Nature
    Volume: 617, P: 524-528

  • Solid-state NMR with dynamic nuclear polarization (DNP-NMR) has recently attracted attention as a highly sensitive NMR measurement method for analyzing polymers. We recently investigated DNP-NMR for insoluble polymers, particularly cross-linked polymers, engineering plastics, and polymer-supported catalysts, and achieved high NMR signal sensitivity at a routinely accessible level. In this focus review, we present case studies on DNP-NMR measurements for a wide range of polymers.

    • Shinji Tanaka
    Reviews
    Polymer Journal
    Volume: 57, P: 25-32