Ksiazkiewicz, A. N.; Fernández Solis, C. D.; Erbe, A.: Electrochemical contrast switching between black and white appearance of gelatin-covered zinc. Journal of Physics: Materials 3 (2), 025009 (2020)
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