Catalytic Behavior of Au Confined in Ionic Liquid Film: A Kinetics Study for the Hydrochlorination of Acetylene

A systematic study of the kinetics supported-ionic-liquid-phase (SILP) Au catalysis (Au-IL/AC) has been established in continuous gas-phase hydrochlorination acetylene. We reveal that effect ionic liquid (IL) film on substrate diffusion can be eliminated. The reaction order catalyst indicates is confirmed to exist as a monomer IL Au-IL/AC system, which different from fast equilibrium “Au dimer and monomer” for classical Au/AC catalyst. homogeneous micro-environment since activation energy was little changed under both heterogeneous catalysis, further verifying monatomic characteristics Au-IL/AC. Due supported film, hydrogen chloride decreased 1 0.5 while creating enrichment system around Au, provides possibility producing vinyl with an equal substrates feed ratio. This kinetic-perspective-based revelation catalytic behavior metal active sites confined enriches expands SILP acetylene hydrochlorination.