Encapsulated metal oxide nanorods for durable air cathodes

Encapsulated metal oxide nanorods for durable air cathodes. The present disclosure relates to the field of nanomaterials. In particular, it relates to a hybrid material which comprises transition metal oxide nanorods, such as manganeseoxide nanorods, which are encapsulated within open-ended hollow carbon nanostructures. It also relates to a process for the preparation of the hybrid materials and to their use as electrocatalysts both in the fields of energy storage and energy conversion.