Precise Confinement and Position Distribution of Atomic Cu and Zn in ZSM-5 for CO₂ Hydrogenation to Methanol.

ABSTRACT: CuZn-based catalysts are widely used in CO₂ hydrogenation, which may effectively convert CO₂ to methanol and alleviate CO₂ emission issues. The precise design of a model catalyst with a clear atomic structure is crucial in studying the relationship between structure and catalytic activity. In this work, a one-pot strategy was used to synthesize CuZn@ZSM-5 catalysts with approximately two Cu atoms and one Zn atom per unit cell. Atomic Cu and Zn species are confirmed to be located in the [5⁴.6.10²] and [6².10⁴] tilings, respectively, by using magic-angle spinning nuclear magnetic resonance spectroscopy (MAS NMR), synchrotron X-ray powder diffraction (SXRD) and high-signal-to-noise-ratio annular dark field scanning t

SUBMITTER: Ding H 

PROVIDER: S-EPMC10708405 | biostudies-literature | 2023 Nov

REPOSITORIES: biostudies-literature