Important energy material for application in fuel cells

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Reference no: EM13701037

CeO2 is an important energy material for application in fuel cells.

(a) What kind of bonding do you expect between Ce and O in this material? Why? Which broad class of material would this oxide belong to?

(b) The ionic radius of Ce4+ and O2- are 0.102 and 0.132 nm, respectively. Based on this information, what is the expected coordination number for Ce?

(c) CeO2 has fluorite (CaF2) structure with unit cell dimension of 5.411 Å. Calculate the bulk density. How many Ce and O atoms are there in a 4mmx5mmx6mm block of this material?

Reference no: EM13701037

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