Structure-dependence and metal-dependence on atomically dispersed Ir catalysts for efficient n-butane dehydrogenation.

ABSTRACT: Single-site pincer-ligated iridium complexes exhibit the ability for C-H activation in homogeneous catalysis. However, instability and difficulty in catalyst recycling are inherent disadvantages of the homogeneous catalyst, limiting its development. Here, we report an atomically dispersed Ir catalyst as the bridge between homogeneous and heterogeneous catalysis, which displays an outstanding catalytic performance for n-butane dehydrogenation, with a remarkable n-butane reaction rate (8.8 mol·g_Ir^-1·h^-1) and high butene selectivity (95.6%) at low temperature (450 °C). Significantly, we correlate the BDH activity with the Ir species from nanoscale to sub-nanoscale, to reveal the nature of structure-dependence of catalyst. Moreover, we compare Ir single atoms w

SUBMITTER: Chen X 

PROVIDER: S-EPMC10162968 | biostudies-literature | 2023 May

REPOSITORIES: biostudies-literature