2.3. CatalysisThe conversion of DCE (99.5 wt.%) was studied in a microreactorsetup described in Refs. [53,54] using an impulse method. About70 mg of the catalyst was placed between two layers of glass woolinto a quartz tubular reactor (4 mm internal diameter and 20 cmlong). The reactor was heated using a tubular furnace and con-nected to the entrance of a Chrom-5 gas chromatograph equippedwith a flame ionization detector and a 1.3 m column packed witha Porapak-S adsorbent. A flow of 30 mL min−1(STP) gas (eitherhydrogen or nitrogen) went through the reactor and impulses ofDCE vapors (1 mL at 25◦C) were injected at regular intervals. Regen-eration of the catalysts in hydrogen was performed in situ for 3.5 hat the reactor temperature of 450◦C. The reduction temperaturewas selected using TPR data corresponding to the maximum inhydrogen uptake.Oxygen-containing groups on the catalyst surface were studiedin a test reaction of dehydrogenation/dehydration of 2-propanolusing the same impulse procedure, but injecting vapors of 2-propanol (99 wt.%) instead of DCE.