m and n values from fitting of R_i ∝ pO₂^−m_ipH₂O^−n_i and related capacitances.

	m		n		Related capacitance (F cm−2)
	Backbone	Backbone + Pr6O11–CeO2	Backbone	Backbone + Pr6O11–CeO2	Backbone	Backbone + Pr6O11–CeO2
R p	0.25	0.27	0.048	0.044	—	—
R HF	0.16	0.10	0.078	1.11	(1.3–2.4) × 10−4	(1.8–2.8) × 10−4
R LF	0.28	0.31	0.12	0.25	(0.8–1.1) × 10−1	(2.6–6.5) × 10−3
R LLF	0.23	—	0.018	—	(3.3–9.9) × 10−1	—