Formation of CoAl₂O₄ Nanoparticles via Low-Temperature Solid-State Reaction of Fine Gibbsite and Cobalt Precursor

Table 1

The crystallite size and XPS results of the CoAl₂O₄ particles obtained via solid-state reaction of fine gibbsite and cobalt chloride.

Samples	𝑑XRD (nm)	Co(II) 2p3/2		Al 2s		Atomic Conc%
		B.E. (eV)	FWHM	B.E. (eV)	FWHM	Al/O	Co/Al
FG-13-650°C	6	781.9	2.819	119.1	2.828	0.50	0.032
FG-0.6-550°C	6	781.5	3.223	118.6	2.772	0.50	0.050
FG-0.6-650°C	6	782.1	3.385	119.2	2.678	0.48	0.053
^aCo3O4		780.0±0.7
^aCoAl2O4		781.9±0.5

^aReferences [20, 27].