The Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry was used to investigate the reactivity of transition metal clusters, gold, rhodium and platinum, both cations and anions, towards different molecules. Overall it was found that they exhibit a very rich and complex chemistry. Dehydrogenation of the ethane on cationic rhodium clusters was found to be size strong dependent. Gas phase platinum clusters serve as model system for heterogeneous catalytic reactions with relevance in removing toxic oxides such as carbon monoxide or nitrogen oxides from automotive exhaust. Isotopically enriched platinum allowed the investigation of large cluster sizes together with an unambiguous assignment of reaction products and quantitative determination of the rate constants. A complete catalytic cycle for CO oxidation on Pt7+ was observed with poisoning of the cluster at two CO molecules attached.
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The Fourier transform ion cyclotron resonance (FT-ICR) mass spectrometry was used to investigate the reactivity of transition metal clusters, gold, rhodium and platinum, both cations and anions, towards different molecules. Overall it was found that they exhibit a very rich and complex chemistry. Dehydrogenation of the ethane on cationic rhodium clusters was found to be size strong dependent. Gas phase platinum clusters serve as model system for heterogeneous catalytic reactions with relevance i...
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