Elemental composition of prepared NPs obtained by AAS analysis.

Nanoparticles	Atomic percent (%)
	Mn	Ni
Pure Mn3O4	28.492 ± 0.008	Not detected
1% Ni doped Mn3O4	28.575 ± 0.033	0.600 ± 0.002
3% Ni doped Mn3O4	28.658 ± 0.017	1.879 ± 0.003
5% Ni doped Mn3O4	27.450 ± 0.050	3.758 ± 0.003
7% Ni doped Mn3O4	25.925 ± 0.008	4.626 ± 0.007
10% Ni doped Mn3O4	26.017 ± 0.050	5.232 ± 0.012