32
J. Oliver–Meseguer and A. Leyva–Pérez
Fig. 1.29 Pt-catalyzed methanation of CO 2 . Reaction conditions: 7 ml CO2 (1 atm, 0.28 mmol),
7 ml N 2 (internal standard, 1 atm, 0.28 mmol), 7 ml H2 (4 atm, 1.12 mmol), MOF catalyst with
Pt
+
2 (2) and Pt 0
2 (3) (8 wt%, 20 mg, 0.008 mmol metal) or M/Al 2 O 3 (5 wt%, 32 mg, 0.008 mmol
metal), 100–140 °C, 6 h. Table includes reaction values for reference literature catalysts and catalyst
3 (Fig. adapted from Ref. [45]. Copyright © 2018 by John Wiley & Sons, Inc.)
Fig. 1.30 Pt-catalyzed hydrogenation of ethylene: Equation shows the reaction conditions:
2 ml/min C 2 H 4 , 6 ml/min H 2 , atmospheric pressure, 60 °C, 50 mg of Pt 0
2 –MOF (3, 0.010 mmol Pt).
Table includes reaction values for reference literature catalysts and catalyst 3 (Fig. adapted from
Ref. [45]. Copyright © 2018 by John Wiley & Sons, Inc.)
Pt
0
2 as a catalyst, the corresponding isomerized intermediate Z–3–hexene was found
during reaction, which supports a Langmuir–Hinshelwood type mechanism.