The present invention relates to an active element of an electrochemical apparatus for producing electrical power and/or hydrogen, the active element being formed as a massive metal body or a mesh-type or perforated sheet-type support structure made from at least one of magnesium, zinc, aluminum, manganese, ferrum, or titanium, or an alloy of at least one of these, and comprising a coating of boron enhanced carbon/graphite/graphene or a boron enhanced material which comprises at least two elements selected from the group comprising carbon/graphite/graphene, nickel, tungsten, phosphorous, and copper.
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