Table 4. Molar Ratio of the Components in the Synthesis of Hierarchically Structured Spinels and the Respective Sample Names.

Ni + Al or Co + Al	EtOH	H2O	PO	PEO contenta (MW 900 000) (mol %)	Ni or Co contentb (mol %)	Ni–Al or Co–Al molar ratio	sample name
1	5.4	18.1	3.1	2.8 × 10–6	3	0.03	3Ni-1, 3Co-1
				3.5 × 10–6			3Ni-2, 3Co-2
				2.8 × 10–6	22	0.28	22Ni-1, 22Co-1
				3.5 × 10–6			22Ni-2, 22Co-2
				2.8 × 10–6	33	0.50	33Ni-1, 33Co-1
				3.5 × 10–6			33Ni-2, 33Co-2

^aBased on the total amount of Ni or Co + Al + PEO.

^bBased on total amount of metal (Ni or Co + Al).