Localization of Cu~+ sites and framework Al positions in high-silica zeolites:Combined experimental and theoretical study

摘要

Three types of Cu~+ sites are distinguished from the analysis of TPD spectra of CO in high-silica zeolites and the details about the structure and coordination of Cu~+ at these sites are obtained from calculations.Copper ions implanted in high-silica zeolites have been recognized as promising catalysts for direct decomposition of NO to molecular nitrogen and oxygen and selective catalytic reduction of NO with hydrocarbons.