Mechanistic Insights into the Lanthanide-Catalyzed Oxychlorination of Methane as Revealed by Operando Spectroscopy.

ABSTRACT: Commercialization of CH₄ valorization processes is currently hampered by the lack of suitable catalysts, which should be active, selective, and stable. CH₄ oxychlorination is one of the promising routes to directly functionalize CH₄, and lanthanide-based catalysts show great potential for this reaction, although relatively little is known about their functioning. In this work, a set of lanthanide oxychlorides (i.e., LnOCl with Ln = La, Pr, Nd, Sm, Eu, Gd, Tb, Dy, and Ho) and Er- and Yb-based catalysts were synthesized, characterized, and tested. All lanthanide-based catalysts can directly activate CH₄ into chloromethanes, but their catalytic properties differ significantly. EuOCl shows the most promising catalytic activity and selectivity,

SUBMITTER: Terlingen B 

PROVIDER: S-EPMC8411843 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature