Electrical polarization of lead bromide crystals. I

Abstract

An attempt was made to measure electronic conductivity in lead bromide in equilibrium with lead, since experimental data on the cell -Pb/PbBr,/C+ in the literature are not consistent with existing theories. Combination of our results with published data for bromine-induced hole conduction in lead bromide shows that neither our data, nor the published conduction data obtained with the afore-mentioned cell arrangement, are in agreement with electronic currents. It turned out that complete steady-state iondischarge blockings has not been achieved, and that ionic currents have dominated.

A Solid‐State Galvanic Cell with Fluoride‐Conducting Electrolytes

“…3 indicate that BiO0.09F2.82 in contact with negatively polarized Bi exhibit very small electron hole currents. The slope of the log [I(LF/RT) ] vs. E curve is, however, smaller than the theoretical slope, a feature frequently observed for lead halides in contact with lead (1,14,15). Whether this behavior is caused by an inefficient blocking of the faradaie processes at the Pt/BiO0.09F2.s2 interface or a nonreversible behavior at the Bi/BiO0.09F2.s2 interface cannot be established from the present data.…”

Ion selective electrodes, potentiometry, and potentiometric titrations

“…Ag/AgiRblg interface reversibility (1041), cell e.m.f's with dissolved I2 (43), interfacial kinetics (42), interfacial impedances (including other solid silver electrolytes) (44), double layer capacitance (including Pt, C as well as Ag electrodes) (445) have been reported. Papers on impedances of the Ag/AgaSI interface (1260), AC and DC responses of the cell Ag/AgBr/Pt (1233), conductivity of AgCl single crystals over a wide frequency range (226), and three papers on the DC properties of pure and doped PbBr2 (1032)(1033)(1034) have appeared. Three papers deal with the meaning of the electrochemical potential (59,417,418).…”