Stable and metastable phases of water adsorbed on Cu(111)
Metastable and stable phases of water adsorbed at low coverages on Cu(111) were studied using vibrational spectroscopy (both time-resolved and high-resolution electron energy-loss spectroscopies) and temperature programmed desorption. The two water species have distinct spectroscopic signatures and...
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| Veröffentlicht in: | The Journal of chemical physics 1992-02, Vol.96 (4), p.3262-3268 |
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| container_title | The Journal of chemical physics |
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| creator | HICH, B. J DUBOIS, L. H |
| description | Metastable and stable phases of water adsorbed at low coverages on Cu(111) were studied using vibrational spectroscopy (both time-resolved and high-resolution electron energy-loss spectroscopies) and temperature programmed desorption. The two water species have distinct spectroscopic signatures and different desorption kinetics. The more stable species appears to be three-dimensional clusters of bulklike, polycrystalline ice while the metastable species was observed to have a higher desorption rate despite a larger activation enthalpy for desorption. A simple model is proposed to explain this intriguing result. The conversion from the metastable to the stable species, as well as the affects of preadsorbed carbon monoxide on the adsorption/desorption kinetics, are also discussed. |
| doi_str_mv | 10.1063/1.461971 |
| format | Article |
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H</creatorcontrib><title>Stable and metastable phases of water adsorbed on Cu(111)</title><title>The Journal of chemical physics</title><description>Metastable and stable phases of water adsorbed at low coverages on Cu(111) were studied using vibrational spectroscopy (both time-resolved and high-resolution electron energy-loss spectroscopies) and temperature programmed desorption. The two water species have distinct spectroscopic signatures and different desorption kinetics. The more stable species appears to be three-dimensional clusters of bulklike, polycrystalline ice while the metastable species was observed to have a higher desorption rate despite a larger activation enthalpy for desorption. A simple model is proposed to explain this intriguing result. 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H</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Stable and metastable phases of water adsorbed on Cu(111)</atitle><jtitle>The Journal of chemical physics</jtitle><date>1992-02-15</date><risdate>1992</risdate><volume>96</volume><issue>4</issue><spage>3262</spage><epage>3268</epage><pages>3262-3268</pages><issn>0021-9606</issn><eissn>1089-7690</eissn><coden>JCPSA6</coden><abstract>Metastable and stable phases of water adsorbed at low coverages on Cu(111) were studied using vibrational spectroscopy (both time-resolved and high-resolution electron energy-loss spectroscopies) and temperature programmed desorption. The two water species have distinct spectroscopic signatures and different desorption kinetics. The more stable species appears to be three-dimensional clusters of bulklike, polycrystalline ice while the metastable species was observed to have a higher desorption rate despite a larger activation enthalpy for desorption. 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| fulltext | fulltext |
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| ispartof | The Journal of chemical physics, 1992-02, Vol.96 (4), p.3262-3268 |
| issn | 0021-9606 1089-7690 |
| language | eng |
| recordid | cdi_crossref_primary_10_1063_1_461971 |
| source | AIP Digital Archive |
| subjects | Applied sciences Chemistry Exact sciences and technology General and physical chemistry Metals. Metallurgy Solid-gas interface Surface physical chemistry |
| title | Stable and metastable phases of water adsorbed on Cu(111) |
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