Phase Composition of Ni/Mg_1−xNi_xO as a Catalyst Prepared for Selective Methanation of CO in H₂-Rich Gas

Table 2

Effect of reduction temperature ( = 500°C~800°C) on phase composition of the catalysts 20%Ni/-400-.

Tr (°C)				Phase composition (wt%)			DR (%)	Ni; (200) (nm)	Ni/Mg atomic ratio
		(Å)	(nm)		Ni	Error			Fitted	Feed
500	0.0926	4.2136	23.5	99.33	0.67	0.32	5.1	—	0.108	0.137
600	0.0911	4.2131	26.0	97.68	2.32	0.23	16.2	—	0.120	0.137
700	0.0823	4.2112	32.1	96.15	3.85	0.29	26.3	13.5	0.122	0.137
800	0.0591	4.2105	42.6	93.96	6.05	0.20	44.0	13.1	0.112	0.137