Decades of research on transition metal borides (TMBs) and their phases have led to a novel class of 2D transition metal borides termed MBenes - the boron-analogues of MXenes. Due to the very early stage of development, little is known about MBenes' physical and chemical properties, although excellent mechanical, electronic, metallic/semiconducting, capacitive, and thermoelectric properties have been theoretically predicted for them. However, even the most accurate theoretical predictions ...