2D graphdiyne materials: challenges and opportunities in energy field

Graphdiyne (GDY), a novel two-dimensional (2D) carbon allotrope featuring one-atom-thick planar layers of sp and sp² cohybridized carbon network, is a rapidly rising star on the horizon of materials science. Because of its unparalleled structural, electronic, chemical and physical properties, it has been receiving unprecedented increases from fundamental studies to practical applications, particularly the field of energetic materials. In this review, we aim at providing an up-to-date comprehensive overview on the state-of-the-art research into GDY, from theoretical studies to the key achievements in the development of new GDY-based energetic materials for energy storage and conversion. By reviewing the state-of-the-art achievements, we aim to address the benefits and issues of GDY-based materials, as well as highlighting the existing key challenges and future opportunities in this exciting field.