Abstract
Lead–steel layered composite electrode materials have been successfully prepared by the roll bonding method. Scanning electron microscopy and energy dispersion spectroscopy (EDS) were used to analyze the microstructures and elements distribution at the interface. The electrochemical properties of the samples were studied by linear sweep voltammetry (LSV), Tafel curves, and a weight loss method. The analysis of the microstructure showed that a metallurgical bond between the hot-dipped steel and lead plate could be achieved by the roll bonding method. The conductivity, electrocatalytic activity, and corrosion resistance of the lead–steel layered composite electrode materials improved with the increase in the rolling reduction ratio. The industrial production results showed that the prepared lead–steel layered composite electrode with a rolling reduction ratio of 40% exhibited the best industrial performance, with a 4.94% increase in the current efficiency, 19.4% reduction in the average cell voltage, and 4.86% increase in the adiponectin yield compared to traditional Pb-0.6%Ag electrode.Graphical Abstract
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