Journal
CHEMICAL RECORD
Volume 14, Issue 5, Pages 759-774Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/tcr.201402022
Keywords
adsorption; calorimetry; heterogeneous catalysis; nanoparticles; surface analysis
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Funding
- National Science Foundation [CHE-1010287]
- Fonds der Chemischen Industrie
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Single-crystal adsorption calorimetry (SCAC) measures the energetics of gas-surface interactions in a direct way and can be applied to a broad range of well-defined model surfaces. In this Personal Account we review some of the recent advances in understanding the interaction of gaseous molecules with single-crystal surfaces and well-defined supported metallic nanoparticles by this powerful technique. SCAC was applied on single-crystal surfaces to determine formation enthalpies of adsorbed molecular fragments typically formed during heterogeneously catalyzed reactions involving hydrocarbons. On supported metal nanoparticles, the binding energies of gaseous species were determined by SCAC as a function of the particle size. The reported data provide valuable information for ongoing research in many fields of heterogeneous catalysis and materials science. In addition, direct calorimetric measurements serve as benchmarks for the improvement of computational approaches to understanding surface chemistry.
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