in alkaline water has been reported. The temperature is much lower than traditional iron production at 114 °C. The low temperatures also tend to correlate with higher current efficiencies, with an efficiency of 95% being reported. While these methods are promising, they struggle to be cost competitive because of the large economies of scale keeping the price of blast furnace iron low. See also Alkaline water electrolysis Castner–Kellner process Electrolytic cell Electrochemical engineering Faraday's law of electrolysis Faraday constant Faraday efficiency Galvanic corrosion Galvanoluminescence Gas cracker Hall–Héroult process High-pressure electrolysis Overpotential Patterson Power Cell Thermochemical cycle Timeline of hydrogen technologies PEM electrolysis References Chemical processes Electrochemistry Hydrogen production Industrial processes Industrial gases