Abstract
The water-ice phase transition in porous alumina films with pores of various sizes was detected using impedance spectroscopy. An electrical equivalent circuit of the structures under study was constructed. It was found that the activation energy of proton transport in water contained in alumina pores in the low-temperature region approximately four times exceeds that at high temperatures. The effect of pore sizes on proton transport in water contained in pores of the solidstate matrix was revealed.
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