Corrosion of metal films in ice: the dynamics of the conductivity of films

Electrical charging of snow and ice in polar regions and the potential impact on atmospheric chemistry

“…Redox reactions were used by Finnegan et al 33 and Shavlov et al 34,56 as a tool with the aim to detect the quite transient charging of growing ice boundaries. Finnegan et al 61 studied the redistribution of charges in a growing ice crystal and demonstrated that such charging leads to the formation of so called "electric multipoles" (Fig.…”

“…33 Similar reactions have been reported to occur during the freezing of bulk dilute solutions of ammonium and/or halide salts. 33 Shavlov et al 34,56 also studied redox reactions in ice and theoretically examined the mechanism of ice charging during growth. They developed the idea of charging due to redistribution of main charge carriers in the ice further (e.g.…”

“…Shavlov et al 34,56 also studied redox reactions in ice and theoretically examined the mechanism of ice charging during growth. They developed the idea of charging due to redistribution of main charge carriers in the ice further ( e.g.…”

“…Redox reactions were used with the aim to illustrate the electric activity of phase boundaries during growth. Shavlov et al 34 showed that films of copper, aluminum, iron, and silver decreased their electrical conductivity in contact with growing ice due to corrosion.…”

“…In the 1990ies, Finnegan et al 33 proposed that chemical reactions can occur in growing ice crystals. Ten years later, Shavlov et al 34 observed an acceleration of the corrosion of metal caused by ice growth processes. Finally, Tkachenko and Kozachkov 35 hypothesized that tribo-electrication of snow during blizzards can lead to corona discharges with following free radical reactions, while Tkachenko 36,37 pointed out that sharp tips of grounded ice structures can accumulate signicant electrical charges possibly leading to the emission of reactive bromine.…”