Tripodal Pd metallenes mediated by Nb₂C MXenes for boosting alkynes semihydrogenation.

ABSTRACT: 2D metallene nanomaterials have spurred considerable attention in heterogeneous catalysis by virtue of sufficient unsaturated metal atoms, high specific surface area and surface strain. Nevertheless, the strong metallic bonding in nanoparticles aggravates the difficulty in the controllable regulation of the geometry of metallenes. Here we propose an efficient galvanic replacement strategy to construct Pd metallenes loaded on Nb₂C MXenes at room temperature, which is triggered by strong metal-support interaction based on MD simulations. The Pd metallenes feature a chair structure of six-membered ring with the coordination number of Pd as low as 3. Coverage-dependent kinetic analysis based on first-principles calculations reveals that the tripodal Pd metallenes promote the diffusi

SUBMITTER: Wei Z 

PROVIDER: S-EPMC9905561 | biostudies-literature | 2023 Feb

REPOSITORIES: biostudies-literature