STUDY ON THE LATTICE DEFECTS IN THE MIXED OXIDES OF NEODYMIUM AND ALKALINE EARTH ELEMENTS AND THEIR ROLE ON THE OXIDATIVE COUPLING OF METHANE

摘要

Along with realising the shortage of natural energy feedstock nowadays, their most effective and wise utilisation gains growing importance. For more then two decades now a great interest is manifested in the utilization of the huge natural gas resources. Different ways of methane activation are studied, as it is the main component of the natural gas. One of the most challenging tasks is the direct catalytic conversion of methane into higher hydrocarbons. It appears to be rather hard to realize with satisfactory yield mainly because of the high symmetry and very low reactivity of the methane molecule which is normally less reactive than the desired products.