Question

What would be the consequences of doping LiF with MgF₂ and NiO with Li₂O on their electrical properties?

Answer 1

Lithium oxide and nickel oxide reacts to form, lithium nickel oxide

1/2 Li₂O + NiO = LiNiO₂

Several samples were prepared starting from three mixtures of Li2O and NiO, adding in each, 20,30 and 50 wt.% in excess of Li2O.

when Lithium reacts with Magnesium fluoride then LiF and Mg is formed.

2Li+MgF₂= 2LiF+Mg

Therefore by adding LiF in MgF2 exothermally complex compound is formed between both of these.

so electrical properties depends on number of unpaired electrones.

by dopping above mixtures electrical properties increases due to increament in electrons.