2 documents found, page 1 of 1
Communication - On the possibility of Fe electrowinning from hematite suspensio...
Lopes, Daniela V.; Frade, Jorge R.; Kavaleuski, Andrei V.Iron electrowinning offers a greener path for steel production. While alkaline media has received the most significant attention, the acidic media declined due to low Faradaic efficiency and difficulties imposed by fragile deposits. This study proposes, for the first time, prospects for acidic Fe electrowinning using a mixed-acid electrolyte (H2SO4+C2H2O4), comparing the deposition from hematite suspensions and...
A self-forming nanocomposite concept for ZnO-based thermoelectrics
Zakharchuk, Kiryl V.; Widenmeyer, Marc; Alikin, Denis O.; Xie, Wenjie; Populoh, Sascha; Mikhalev, Sergey M.; Tselev, Alexander; Frade, Jorge R.Zinc oxide (ZnO) has a very broad and versatile range of applications provided by high abundance, optical and electrical properties, which can be further tuned by donor substitution. Al-doped ZnO is probably the most thoroughly investigated material regarding thermoelectric properties. Fairly reasonable electrical properties of donor-doped zinc oxide are usually combined with a high thermal conductivity limitin...