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Nickel Electrowinning and Impurities Influence Electrowinning from aqueous solutions using insoluble anodes is a well-established process for metals like zinc, copper, nickel, cobalt, cadmium, manganese and others. The metal is electrodeposited at the cathode from a solution of one of its salts, most commonly a sulfate. Water is decomposed at the anode, which is usually made of lead or a lead alloy; oxygen is evolved and acid (hydrogen ions) is formed. Successful electrowinning and electrorefining processes for the production of

What Kind of Lead Anode is Good for Zinc Electrowinning? In electrowinning applications, lead and its alloys have been the preferred anode material for a long time. The anode material used in the electrowinning process should meet three requirements: electrical conductivity, electrocatalysis, stability, and certain resistance. Good electrical conductivity is essential for energy efficiency. Good electrocatalytic properties are essential to improve product yield. Long-term stability is also an important property because electrode we

How Dimensionally Stable Anodes (DSA) are Used for Hydrogen Production? Hydrogen production via electrochemical technology is one of the most sustainable methods, choosing an appropriate counter electrode is critical. Modified electrodes of dimensionally stable anodes (DSA) have emerged as an alternative, with a high chemical and electrochemical stability. The chosen coating must allow the transport of an electric charge between the base metal and the electrode/electrolyte interface, as well as being able to catalyse the electro

What Anode Material is Used for Organic Impurities Removal? Removal of organic impurities in industrial wastewaters, especially those containing phenol and chlorophenols is very important for environmental protection. Electrooxidation of these impurities appears to be a promising process since no additional oxidative reagents should be used. An appropriate anode material with good electrocatalytic activity for the oxidation organic compound is significant. The oxidation of phenol and substituted phenols has been investigated