A Comparative Study of Solvothermal and Sol-Gel-Derived Nanocrystalline Alumina Catalysts for Ethanol Dehydration

Table 4

NH₃-TPD data and catalytic activity of Fe-modified alumina catalyst.

Sample	Number of acid sites (mol NH3/g catalyst)		Ethanol conversion (%)	Selectivity (%)
	Weak to moderate	Strong		Ethylene	Diethyl ether	Acetaldehyde
Al-SV	360	441	100.0	100.0	0.0	0.0
Fe/Al-SV	281	1147	75.2	45.6	2.1	52.3

= 350°C, = 1 atm.