Tuning metal-support interactions in nickel-zeolite catalysts leads to enhanced stability during dry reforming of methane.

ABSTRACT: Ni-based catalysts are highly reactive for dry reforming of methane (DRM) but they are prone to rapid deactivation due to sintering and/or coking. In this study, we present a straightforward approach for anchoring dispersed Ni sites with strengthened metal-support interactions, which leads to Ni active sites embedded in dealuminated Beta zeolite with superior stability and rates for DRM. The process involves solid-state grinding of dealuminated Beta zeolites and nickel nitrate, followed by calcination under finely controlled gas flow conditions. By combining in situ X-ray absorption spectroscopy and ab initio simulations, it is elucidated that the efficient removal of byproducts during catalyst synthesis is conducted to strengthen Ni-Si interactions that suppress coking and sintering after

SUBMITTER: Zhang J 

PROVIDER: S-EPMC11452210 | biostudies-literature | 2024 Oct

REPOSITORIES: biostudies-literature