Eklund, P.; Kerdsongpanya, S.; Alling, B.: Transition-metal-nitride-based thin films as novel energy harvesting materials. Journal of Materials Chemistry C 4 (18), pp. 3905 - 3914 (2016)
If manganese nodules can be mined in an environmentally friendly way, the critical metals needed for the energy transition could be produced with low CO2 emissions