Abstract
Temperature programmed hydrogen desorption (H2-TPD) is a versatile tool to characterize metal surfaces in heterogeneous catalysts. We present a systematic H2-TPD study combined with a kinetic analysis of the H2 desorption process from pure polycrystalline copper and alumina supported copper. The results show that, in contrast to typical Cu/ZnO based methanol synthesis catalysts, the alumina support has no measureable influence on the desorption process and that the copper surface in both catalyst can be accurately described by a theoretically deduced mixture of the low index planes Cu(100), Cu(110), and Cu(111). Graphical Abstract: [Figure not available: see fulltext.]
Original language | English |
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Pages (from-to) | 2114-2120 |
Number of pages | 7 |
Journal | Catalysis Letters |
Volume | 144 |
Issue number | 12 |
DOIs | |
State | Published - Dec 2014 |
Keywords
- Catalysis
- Copper catalysts
- Elementary kinetics
- Heterogeneous catalysis