Details

Autor(en) / Beteiligte

• Grass, Michael E
• Zhang, Yawen
• Butcher, Derek R
• Park, Jeong Y
• Li, Yimin
• Bluhm, Hendrik
• Bratlie, Kaitlin M
• Zhang, Tianfu
• Somorjai, Gabor A

Titel

Reactive Oxide Overlayer on Rhodium Nanoparticles during CO Oxidation and Its Size Dependence Studied by In Situ Ambient-Pressure X-ray Photoelectron Spectroscopy

Ist Teil von

• Angewandte Chemie (International ed.), 2008-01, Vol.47 (46), p.8893-8896

Ort / Verlag

Weinheim: Wiley-VCH Verlag

Erscheinungsjahr

2008

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The smaller, the better: In situ synchrotron ambient pressure X‐ray photoelectron spectroscopy allows examination of the oxidation state of the surface of the rhodium nanoparticles (NPs) during CO oxidation in an O2 atmosphere. 2 nm NPs oxidize to a larger extent than 7 nm NPs during reaction at 150–200 °C, which correlates with a fivefold increase in turnover frequency for the smaller nanoparticles.