. 2016 Jan 6;6:18978. doi: 10.1038/srep18978

Table 1. Lattice parameters and grain sizes of pure SnO₂, Co/SnO₂ and Co-N/SnO₂ samples.

Samples	a/Å	c/Å	grain size/nm
SnO₂	4.7655	3.1843	34.0
Co/SnO₂	4.7751	3.1854	35.6
Co-N/SnO₂	4.7973	3.1993	39.2

Table 1. Lattice parameters and grain sizes of pure SnO2, Co/SnO2 and Co-N/SnO2 samples.