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Thermal Decomposition of Silver Oxide Monitored by Raman Spectroscopy: From AgO Units to Oxygen Atoms Chemisorbed on the Silver Surface

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Pettinger,  Bruno
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Bao,  Xinhe
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

Wilcock,  Ian
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Muhler,  Martin
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Schlögl,  Robert
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Ertl,  Gerhard
Physical Chemistry, Fritz Haber Institute, Max Planck Society;

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Citation

Pettinger, B., Bao, X., Wilcock, I., Muhler, M., Schlögl, R., & Ertl, G. (1994). Thermal Decomposition of Silver Oxide Monitored by Raman Spectroscopy: From AgO Units to Oxygen Atoms Chemisorbed on the Silver Surface. Angewandte Chemie, International Edition in English, 33(1), 85-86. doi:10.1002/anie.199400851.


Cite as: https://hdl.handle.net/21.11116/0000-0009-8D4F-1
Abstract
When Ag7O8NO3 is heated in an O2-free atmosphere between 300 and 930 K, its AgO units (300–480 K) are transformed into Ag2O units (480–580 K) and ultimately into metallic Ag. A strongly chemisorbed Oγ species is found on the Ag surface at temperatures between 580 and 900 K which participates in the catalytic oxidation of methanol to give formaldehyde. The various O species were characterized by Raman spectroscopy.