Synthesis and Characterization of 1D Ceria Nanomaterials for CO Oxidation and Steam Reforming of Methanol

Table 2

Comparison of the MD/SRM/ATRM performances over different metal-doped CeO₂ catalysts in literatures.

Catalyst	S/C^a	WHSV^b; (GHSV)^b	SCO^c; (%)	𝑇^d; (°C)	Reference
Pt/CeO2^e	N.A.	(42,000)	1.41	270 (100)	[110]
Pd/CeO2^e	N.A.	(42,000)	0.589	270 (100)	[110]
Rh/CeO2^e	N.A.	(42,000)	44.6	270 (100)	[110]
Pt/CeO2^f	1.5	(42,000)	0.86	270 (100)	[110]
Pd/CeO2^f	1.5	(42,000)	20.46	250 (100)	[110]
Rh/CeO2^f	1.5	(42,000)	19.89	270 (100)	[110]
Ceria (nanorods)^f	1.3	(42,000)	N.A.	450 (95)	[109, 111]
Ceria (nanocubes)^f	1.3	(42,000)	N.A.	500 (95)	[109, 111]
1% Au-ceria (rod)^f	1.3	(42,000)	N.A.	300 (95)	[109, 111]
1% Au-ceria (cube)^f	1.3	(42,000)	N.A.	380 (95)	[109, 111]
Pt/CeO2^g	1.5	(42,000)	0.729	270 (100)	[110]
Pd/CeO2^g	1.5	(42,000)	22.27	250 (100)	[110]
Rh/CeO2^g	1.5	(42,000)	2.52	270 (100)	[110]
Cu40Zn50Al10-CeO2^g	1.3	16.2	0.58	300 (95)	[98, 105]
Cu40Zn50Al10-CeO2^g	1.3	16.2	0.40	240 (95)	[98, 105]
Cu40Zn50Al10-CeO2^g	1.3	16.2	0.35	270 (95)	[98, 105]
Cu50Zn33Al8-Al2O3^g	1.1	54.0	2.90	260 (99)	[98, 105]
Cu50Zn33Al8-Al2O3^g	1.5	14.8	1.10	270 (80)	[98, 105]
Cu65Zn28Ce7-Al2O3^g	1.3	8.3	2.05	292 (97)	[98, 105, 112]
Cu48Zn48Ce4-Al2O3^g	1.3	8.3	1.30	292 (98)	[98, 105, 112]
Cu38Zn58Ce4-Al2O3^g	1.3	8.3	1.60	292 (91)	[98, 105, 112]
Cu48Zn48Ce4-Al2O3^g	1.3	8.3	2.10	292 (88)	[98, 105, 112]

S/C^a: steam-to-carbon ratio; WHSV^b: weight hourly space velocity in mass methanol per time and mass of catalyst (g_MeOHh⁻¹g_cat⁻¹); (GHSV)^b: (gas hourly space velocity at NTP (h⁻¹)); S^c_CO (%): CO selectivities; 𝑇^d (°C): temperatures required for conversion of methanol at different percentage; ^e: methanol decomposition; ^f: steam reforming reaction; ^g: autothermal reforming of methanol; N.A.: not available.